Summary: 
Nominal pass which included recovery of SSR data from days 31 and 32.

Activities:
1607 AOS W/ D16
1625 VC2 acquired at MOC -  ADC downlink format
1628 SSR A Redump of missing data from  Day 031 -  Approx 8 min 
1637 SSR A placed in RECORD mode 
1639 SSR B placed in PLAYBACK mode
1645 Active C&DH bin dump initiated
1746 Active C&DH bind dump completed  -  
1747 S/C commanded to Science downlink format
1921 SSR B playback completed 
1922 S/C commaned to ADC downlink format
1928 Poke commands issued to active and inactive for LRT
1930 S/C commanded to Science downlink format for ADS program execution ~10 
min runtime
1941 S/C commanded to RTSW downlink format - 498 bps rate
1950 LOS W/ 
D16

-------------------

Summary: 
Nominal pass which included uplink of a software patch to the SWEPAM-I 
instrument

Anomalies:
G98-014 - TPOCC packet extractor crash at 18:58 during SSR redump. Recycled 
TPOCC software, system reinitialized at 19:06

Activities:
15:31 - AOS
16:01 - ADC downlink format started, 76384 rate
16:03 - SSR B placed in record format
16:07 - SSR A dump started
16:32 - SWEPAM-I software patch load activities started
16:51 - SWEPAM-I software patch load activities complete
18:31 - SSR A dump complete 
18:58 - Anomaly G98-014
19:06 - TPOCC reinitialized
19:19 - RTSW downlink format started, 434 rate
19:25 - EOT

-------------------

Summary: 
Nominal pass which included an attitude correction maneuver and commanding to 
the SWICS instrument

Activities:
15:35 - AOS
16:05 - ADC downlink format started, 76384 rate
16:08 - Radial catbed heaters on
16:09 - SSR A placed in record format
16:10 - SSR B dump started
17:17 - Attitude reor maneuver start
17:22 - Attitude reor complete
17:25 - Radial catbed heaters off
18:06 - SWICS activities started - OCR#80
18:22 - SWICS activities complete
18:39 - SSR B dump complete
18:57 - RTSW downlink format started, 434 rate
19:20 - EOT

-------------------

Summary: 
Today's pass included commanding to the SWICS and SWEPAM-I instruments.  In 
addition, the predict table at D16 ran out during the pass and there was a 
one minute telemetry drop while new predicts were loaded.

Anomalies:
S98-0003 - Proc error caused incorrect command to be sent to SWEPAM-I - 
SWEPAM-I rejected command. No impact on instrument health.
G98-0015 - Telemetry outage from 23:02 to 23:03 due to predicts running out 
at D16.

Activities:
19:54 - AOS
20:03 - ADC downlink format started, 76384 rate
20:08 - SSR B placed in record format
20:11 - SSR A dump started
20:13 - Science downlink format started
20:38 - OCR#80 steps 1,2,3 executed - SWICS activities
20:42 - OCR#80 complete
20:44 - SWICS table load activities started
20:59 - SWICS table load activities complete
21:07 - OCR#SWPI-001 started - SWEPAM-I activities
21:08 - Anomaly S98-0003
21:10 - Cleared SWEPAM-I error flag
21:13 - Correctly sent SWEPAM-I command from OCR#SWPI-001
21:20 - Reran OCR#SWPI-001 
22:18 - Switched to ADC downlink format - FDF having trouble getting valid 
attitude solution
22:40 - Switched back to Science downlink format
23:00 - SSR A dump complete
23:02 - Anomaly G98-015
23:34 - SSR A redumps complete
23:35 - ADC downlink format started
23:50 - RTSW downlink format started, 434 rate
23:55 - EOT

-------------------

Summary: 
Today's pass included a 17 minute telemetry dropout due to problems with the 
SFG at JPL.  The remainder of the pass was focused on uploading a flight 
software patch to the S3DPU in an attempt to fix a problem with the SEPICA 
instrument.  The software patch was loaded but shortly thereafter an uplinked 
command failed at the S3DPU with a checksum failure and S3DPU stopped 
accepting commands.  The SEPICA instrument team decided to power off SEPICA 
prior to the end of the pass.  It was also suggested by the SEPICA team that 
the SWICS and SWIMS instruments be powered off.  The FOT was unable to reach 
the SWICS/SWIMS instrument team and these instruments were not powered down.
The FOT will discuss recovery plans with the S3DPU, SEPICA, SWICS, and SWIMS 
instrument teams on day 37. 

Anomalies:
G98-016 - Telemetry outage from 20:02 to 20:19 due to INIF router problems at 
JPL
S98-004 - S#DPU stopped accepting commands after SEPICA patch upload and 
subsequent SEPICA commanding

Activities:
19:44 - AOS
20:01 - ADC downlink format started, 76384 rate
20:02 - Anomaly G98-016
20:19 - Telemetry back again
20:22 - SSR A placed in record format
20:23 - SSR B dump started
20:26 - Science downlink format started
21:00 - OCR#SEP-002 started - SEPICA patch operations
21:28 - Executed OCR#98-0101 step 2 - Received S3DPU command reject
21:41 - Ran procedure to change SEPICA gas regulation state
21:46 - Executed OCR#98-0101 step 2
22:20 - Sent command to disable SEPICA patch
23:00 - Attempted to command SEPICA into a different mode - not successful
23:18 - SSR B dump completed
23:29 - SEPICA powered off
23:34 - SEPICA heater configuration changed to survival mode
23:47 - RTSW downlink format started, 434 rate
23:55 - 
EOT

-------------------

Pass Summary: 
AOS was delayed by 10 minutes today due to telemetry processing software 
problems at D42.  Additional network problems related to command transfer 
through JPL led to an additional one-half hour delay in beginning the day's 
activities.  During the remainder of the pass commanding to the S3DPU was 
performed to clear a failed command from the input buffer - and - the SEPICA 
instrument was powered on.  This power on sequence caused an autonomy bin to 
fire which turned off the SEPICA instrument.  The bin firing was probably due 
to transient power fluctuations at start-up.  The power up sequence will be 
tried again on day 40 with the SEPICA autonomy bin fire value raised to the 
value that was used during the initial SEPICA turn-on.  Once the instrument 
is stabalized the lower autonomy bin fire value used for nominal operations 
will be reloaded.

Anomalies:
Anomaly G98-0017 - AOS was delayed until 21:23 due to a TGC failure during 
initial acquisition
Anomaly G98-0018 - Commanding impossible until 21:50 due to JPL ISIS failure
Anomaly S98-0005 - Autonomy bin 30 fired during SEPICA power up causing the 
immediate shutdown of SEPICA.


Activities:
21:23 - AOS D42
21:50 - JPL ISIS rebooted, command link reestablished
21:55 - ADC downlink format started, 76384 rate
21:57 - SSR B placed in record format
21:59 - SSR A dump started
22:00 - Science downlink format started
22:35 - OCR#SEP-003 started - S3DPU recovery, SEPICA power up procedures
22:40 - S3DPU accepting commands
23:00 - Anomaly S98-0005 - SEPICA shut off by autonomy bin 30 fire during 
power up sequence
23:39 - Autonomy bin fire flag cleared, autonomy bin 30 reenabled
00:27 - ADC downlink format started
00:35 - SSR A dump completed
00:38 - Commands sent to switch to RTSW format
00:43 - RTSW downlink format started, 434 rate
00:45 - EOT D42

-------------------

Summary: 
Nominal pass which included commanding to the SWIMS instrument.  In addition, 
the FOT performed some C&DH A and SSR B state-of-health evaluations (results 
were nominal).

Activities:
13:27 - AOS
13:49 - ADC downlink format started, 76384 rate
13:53 - SSR A placed in record format
13:57 - SSR B dump started
13:58 - Science downlink format started
14:04 - ADS software started
14:29 - SWIMS configuration activity started
14:34 - SWIMS configuration activity complete
15:05 - ADS software terminated
15:34 - SSR B dump complete
15:50 - SSR B redumps complete
15:53 - SSR B memory error checking start
16:04 - SSR B memory error checks complete - no errors
16:06 - C&DH A block bin dump started
16:41 - C&DH A block bin dump complete - 0 miscompares
17:11 - ADC downlink format started
17:26 - RTSW downlink format started, 434 rate
17:40 - EOT

-------------------

Summary: 
Nominal pass which included a SSR A state-of-health evaluation.

Activities:
12:31 - AOS D66
13:00 - ADC downlink format started, 76384 rate
13:03 - SSR B placed in record format
13:06 - SSR A dump started
13:07 - Science downlink format started
13:58 - ADS software started
15:29 - SSR A dump complete
15:32 - ADS software terminated
15:51 - SSR A redumps complete
16:03 - SSR A memory error check complete - no errors
16:29 - ADC downlink format started
16:47 - RTSW downlink format started, 434 rate
16:55 - EOT 
D66

-------------------

Pass Summary: 
Today's pass ended 15 minutes earlier than scheduled because of an interlock 
limit at station D66.  The SEPICA instrument was turned back on today.  Power 
up was successful and a number of procedures were run to configure the 
instrument for operations.
 
Anomalies:
*  D66 had to bring Carrier Down at 1727 instead of 1743.
 
Activities:
141500 BOT D66
142147 S/C commanded to 76k ADC Downlink Format
142248 SSR A put in Record Operate Mode
142417 SSR B put in Playback Operate Mode
144135 S/C commanded to Science Downlink Format
144732 SEPICA OCR 004 completed - SEPICA Autonomy Bin Re-Loaded and Re-Enabled
145702 Scrolled through Autonomy 1 and 2 Housekeeping Formats to verify 
SEPICA bin Re-Enabled
163024 SEPICA OCR 003 Completed
175849 SEPICA OCR 005 Completed
171634 S/ C commanded to ADC Downlink Format
172234 Poke Command sent to Active C&DH
172250 Poke Command sent to Inactive C&DH
172421 S/C commanded to RTSW Downlink Format
173000 EOT 
D66

Summary: 
Nominal pass.  The FOT continued performing SEPICA reconfiguration 
procedures today - almost 900 commands were sent to the SEPICA instrument 
during today's pass. In addition, the SEPICA power related autonomy bin was 
reloaded with a fire value of 0.63 Amps (nominal current draw is 0.5 Amps).  
SIS commanding was also performed today at the request of the instrument team.
 
Anomalies:
*  G98-0020 - Workstation 3 froze with CC privilege. TPOCC Software 
recycled and problem cleared up.
 
Activities:
160000 BOT D16
160451 S/C Commanded to 76k ADC Downlink Format
160650 SSR B put in Record Operate Mode
160753 SSR A put in Playback Operate Mode
160903 S/C Commanded to Science Downlink Format
163739 SEPICA OCR 006 Begun
180730 SEPICA OCR 006 Completed
181138 SEPICA OCR 007 Begun
182234 SEPICA OCR 007 Completed
182433 SIS OCR 002 Begun
182719 SIS OCR 002 Completed
183028 SEPICA Safing Bin Re-Loaded and Re-Enabled with Tighter Current Value
190000 SSR A Redumps Begun
191500 SSR A Redumps Completed
192100 TPOCC Software Cycled
192710 S/C Commanded to ADC Downlink Format
192936 Poke Command sent to Active C&DH
192954 Poke Command sent to Inactive C&DH
193153 S/C Commanded to RTSW Downlink Format
193500 EOT D16

-------------------

Summary: 
Today's pass ended 15 minutes earlier due to masking at D66.  The FOT 
performed an attitude maneuver today along with extensive commanding to the 
SEPICA instrument.
 
Anomalies:
*  S98-0021 - D66 informed MOC that Carrier would have to brought down 
at 1727 due to Masking.  As a result, the pass was ended at 1730 instead of 
1745.
 
 Activities:
134500 BOT D66
135347 S/C Commanded to 76k ADC Downlink Format
135538 SSR A put in Record Operate Mode
135706 SSR B put in Playback Operate Mode
135858 Radial Catbeds Powered ON
150441 Attitude Burn Begun
150954 Attitude Burn Completed
151152 Radial Catbeds Powered OFF
153007 S/C Commanded to Science Downlink Format
154548 SEPICA OCR-008 Begun
161037 SEPICA OCR-008 Completed
162201 SSR B Redumps Begun
162648 SSR B Redumps Begun
162756 SEPICA OCR-009 Begun
165821 SEPICA OCR-009 Completed
170327 S/C Commanded to ADC Downlink Format
170849 Poke Command sent to Active C&DH
170906 Poke Command sent to Inactive C&DH
171312 S/C Commanded to RTSW Downlink Format
173000 EOT 
D66

Summary: 
Fairly nominal pass with a two minute telemetry loss due to problems with 
the Auto-Track equipment at D16.  SEPICA commanding was the priority for this 
pass.
 
Anomalies:
*  G98-0021 - Approximate 2 minute data loss due to Antenna losing 
track of S/C (DR# G03376)
 
Activities:
203500 BOT
203832 S/C Commanded to 76k ADC Downlink Format
204015 SSR B put in Record Operate Mode
204128 SSR A put in Playback Operate Mode
205407 S/C Commanded to Science Downlink Format
213747 SEPICA OCR-010 Begun
221400 Auto-track failure at D16 (telemtry loss begins)
221600 Auto-track back on-line (telemetry received at MOC)
223021 SEPICA OCR-010 Completed
234906 SSR A Redumps Begun
1451 SSR A Redumps Completed
1542 S/C Commanded to ADC Downlink Format
2050 Poke Command sent to Active C&DH
2106 Poke Command sent to Inactive C&DH
2641 S/C Commanded to 498 RTSW Downlink Format
3500 
EOT

-------------------

Summary: 
Today's pass was nominal except for a short telemetry outage while 
D61 performed a TGC swap.  The majority of the pass was spent commanding the 
SEPICA instrument.
 
Anomalies:
*  G98-S022 - DR# L01811 - TGC Swap at ~1721.
 
Activities:
140000 BOT D61
140524 S/C Commanded to 76k ADC Downlink Format
140713 SSR A put in Record Operate Mode
140834 SSR B put in Playback Operate Mode
141719 S/C Commanded to Science downlink format
153151 SEPICA OCR-0011 Started
154600 SEPICA OCR-0011 Completed
155042 SSR B Redumps Begun
161213 SSR B Redumps  Completed
163736 SEPICA OCR-0012 Started
165433 SEPICA OCR-0012 Completed
165847 S/C Commanded to ADC Downlink Format
170312 Poke Command sent to Active C&DH
170328 Poke Command sent to Inactive C&DH
172833 S/C Commanded to 498 RTSW Downlink Format
173000 EOT 
D61

-------------------

Summary: 
Today's pass was nominal except for a 3 minute telemetry outage when the 
Auto-track at D16 lost lock.  During the data outage the FOT was unable to 
reach D16 or JPL Comm on the voice lines.  It turned out that the voice lines 
were brought down without notifying the FOT.  Communications were re-
established with D16 via black-phone for the remainder of the pass.
 
Anomalies:
*  G98-S023 -  DR#G03383    - Telemetry dropout from 174541-174802.  Station 
notified ACE MOC that the antenna had lost autotrack.
*  During data dropout, when neither D16 nor JPL COM could be raised, GODDARD 
Voice was contacted.  Goddard voice informed us that JPLCOM had brought down 
all of their voice lines at 1630 and said they would be down for 1 hour.   
 
Activities:
150000 BOT D16
151523 S/C Commanded to 76k ADC Downlink Format
151705 SSR B put in Record Operate Mode
151806 SSR A put in Playback Operate Mode
151927 ADS Program Started
153630 S/C Commanded to Science Downlink Format
153914 Active C&DH's Block Bin Dump Begun
165247 Block Bin Dump Completed
180124 SSR A Redumps Begun
181833 SSR A Redumps Completed
181927 S/C Commanded to ADC Downlink Format
~1823 Poke Command sent to Active C&DH
~1833 Poke Command sent to Inactive C&DH
183650 S/C Commanded to 498 RTSW Downlink Format
184000 EOT 
D16

-------------------

Summary: 
An interlock limit violation required the carrier to be brought down 18 
minutes earlier than scheduled.  The FOT will investigate why all Madrid 
contacts during the past few weeks have been cut short by 15-20 minutes from 
the scheduled time.  The FOT was able to complete all of the scheduled 
activities during this shortened pass.
 
Anomalies:
G98-0024 Early carrier down at D66 due to interlock limit
 
 Activities:
1321 AOS w/ D66
1351 VC2 acquired at MOC -  ADC downlink format
1353 SSR A placed in RECORD mode
1355 SSR B placed in PLAYBACK mode
1400 ADS progam run for FDF
1434 Terminated ADS program
1435 S/C commanded to SCIENCE downlink format
1615 SSR Playback completed - Redump of missing frames initiated
1635 SSR Playback complete - with missing frames redumped
1648 S/C commanded to ADC downlinkformat
1656 Poke commands issued to active and inactive C&DH's
1712 S/C commanded to RTSW downlink format
1727 Carrier down 18 min early due to interlock at D66  - EOT begun
1745 Scheduled LOS w/d66

-------------------

Summary: 
Interlock limits at D66 shortened today's pass by 20 minutes.  Commanding 
was performed to the SEPICA and SWICS instruments.  The TPOCC Packet 
Extractor crashed during the SSR playback due to receipt of a corrupt VC1 
telemetry frame.  

Anomalies:
G98-0025  Early carrier down at D66 due to interlock limit
G98-0026  Packet  extractor crash during SSR A playback
 
Activities:
1406 AOS w/ D66
1420 VC2 acquired at MOC - ADC downlink format
1424 SSR B placed in RECORD mode
1425 SSR A placed in PLAYBACK mode
1433 S/C commanded to SCIENCE downlink format
1434 SWICS command operations began  - high voltage commanding
1437 SWICS command operations completed
1459 SEPICA command operations began -  OCR# SEP-013 (2k voltage raised to op 
levels for fans 2&3)
1526 TPOCC Packet extractor crash
1533 TPOCC re-initialized after crash
1625 SEPICA command ops completed
1702 SSR A playback completed -  Missing frames from TPOCC crash downtime 
redumped
1705 S/C commanded to  ADC format for end of day activities
1709 Poke commands issued to active and inactive C&DH's
1714 S/C commanded to RTSW downlink format for MOC non-contact configuration
1727 Carrier down from D66  -  Interlock limit 
1728 LOS w/d66   - EOT 19 minutes 
early

-------------------

Summary: 
Nominal pass which was focused on performing memory loads to the ULEIS 
instrument.  Additional ULEIS memory loads will be performed tomorrow to 
complete the OCR.
 
Activities:
1518 DSS16 AOS
1526 Commanded spacecraft to 87648 bps ADC downlink format
1528 Placed SSR A in Record mode
1529 Placed SSR B in Playback mode
1540 Commanded spacecraft to Science downlink format
1720 Started ULEIS commanding (OCR ULEIS-001, Steps 1-4).
1802 SSRB playback complete.  No redumps due to ongoing ULEIS commanding
1844 Completed ULEIS commanding (~300 commands sent)
1845 Commanded spacecraft to ADC  downlink format
1852 Commanded spacecraft to 498 bps RTSW downlink format
1852 DSS16 LOS

-------------------

All-
Just wanted to inform everyone of a change that was recently made in the 
DSN transmit frequency to better match the spacecraft receiver A and B best-
lock frequencies.  This change was made to ensure that the spacecraft 
receivers will lock-up during DSN sweeps.  Recently, there have been a few 
occasions where receiver B was not locking up and a resweep with the sweep 
range doubled was necessary.  With this recent change, problems of this 
nature should not reoccur.

Analysis:  
FOT analysis showed that an offset of +8khz on receiver *A* and an offset  
of  + 13khz on receiver *B*.  This offset is the delta between the S/C best-
lock frequency and the stations voltage controlled oscillator (vco) 
transmitter frequency.

Corrective action:
A negative   9khz  offset , was incorporated into all station predicts for  
ACE , effective Feb. 18, 1998/Day 049.  Observation of the first pass 
(station 61) supported with this new  offset shows that receiver *A* has a 
new offset of  -1.92khz and receiver *B* has an offset of 0.00khz.  This 
frequency change will be monitored for consistent acquisition of both 
receivers.

If anyone has questions concerning this change - please feel free to contact 
me.

Jeff
VolosiJ@thorin.atsc.allied.com

-------------------

Summary: 
Today was the second day of a ULEIS EEPROM upload (OCR ULEIS-001).  484 
commands were executed during pass of which 455 went to ULEIS. There was a 20 
minute telemetry loss at the MOC after the spacecraft was commanded to the 
76k data rate due to equipment problems at D61.
 
Anomalies:
G98-0027  D61 unable to acquire high rate data -  TGC swapped out
 
 
Activities: 
1351 AOS w/ D61
1425 VC2 acquired at MOC - ADC downlink format
1426 SSR B placed in RECORD mode
1427 SSR A placed in PLAYBACK mode
1432 S/C commanded to SCIENCE downlink format
1430 ULEIS EEPROM upload operations started - OCR# ULEIS-001
1651 ULEIS command operations completed
1700 SSR A playback completed with redump of ~18 of 24 missing frames 
1714 S/C commanded to ADC downlink format
1717 Poke commands issued to active and inactive C&DH's
1724 S/C commanded to RTSW downlink format
1730 LOS w/ 
D61

-------------------

ACE Stationkeeping Maneuver

All-
There has been a great deal of confusion and replanning of the attitude and 
orbit maneuvers that had been originally scheduled for 2/20/98.  The 
following schedule of events should be considered final unless additional 
circumstances arise:

2/19 -- The DSN contact on this date will be used to perform high-voltage 
ramp down sessions of the SWICS and SWIMS instruments (and also possibly the 
ULEIS and SWEPAM instruments).  Performing these ramp down session will 
require the entire pass period on this date.  No maneuvers will be scheduled 
for this contact.

2/20 -- The DSN contact on this date will be dedicated to performing the 
attitude correction, spin adjustment and orbit maneuvers requested by Flight 
Dynamics.  No instrument activities will be performed during this contact.

2/23 -- High-voltage ramp-up sessions will be performed on this date to 
return the instruments to there nominal operations mode.

If anyone has any questions or concerns with the sequence of events - please 
call me immediately at (301) 286-7014.  I will be out of the office on the 
morning of 2/19 but can be reached by pager at (301) 708-8287.  If any 
additional problems arise that require replanning of these activities - I 
will notify all participants as soon as possible.

Thanks,
Jeff

-------------------

Summary:   
Nominal pass.  Powered down SWICS, SWIMS, and SEPICA for upcoming 
stationkeeping maneuver
 
Activities: 
1333 DSS66 AOS
1344 Commanded spacecraft to 87648 bps ADC downlink format
1347 Placed SSR A in Record mode
1348 Placed SSR B in Playback mode
1406 Commanded spacecraft to Science downlink format
1415 SWICS high voltage procedures (high voltage off for upcoming maneuver)
1427 SWIMS  high voltage procedures (high voltage off for upcoming 
maneuver).  SWICS and SWIMS left in Manual command mode.
1608 SEPICA commanding (OCR SEPICA-014).  Table load 
1642 Commanded spacecraft to ADC downlink format
1654 Commanded spacecraft to 498 bps RTSW downlink format
1710 DSS66 
LOS

-------------------

Summary: 
Todays pass featured high-voltage ramp down of the SWEPAM instrument and 
execution of a station keeping maneuver along with a spin up and attitude 
correction maneuver.
 
Activities:
1815 AOS w/ D16
1826 VC2 acquired at MOC -  ADC downlink format
1828 SSR placed in RECORD mode
1829 SSR placed in PLAYBACK mode
1831 Radial and Axial catbed heaters enabled
1834 SWEPAM Electron and ION ESA and CEM high voltage power supplies turned 
off
2000 Started Orbit and Trim maneuver for SK-02
2009 Orbit and Trim maneuver copletion
2012 Axial catbed heaters disabled
2037 Started  Spin up maneuver
2037 Spin up maneuver completed
2106 Started Attitude correction maneuver
2111 Attitude correction maneuver completed
2140 SSR playback completed  
2142 S/C commanded to ADC downlink format
2144 Poke commands issued to active and inactive C&DH's
2149 S/C commanded to RTSW downlink format
2150 LOS w/ 
D16

-------------------

Pass Summary: 
Due to equipment problems at D16 high-rate telemetry was not received in the 
MOC until 3.5 hours into the pass.  Due to this long delay - the pass was 
extended by 3 hours to give the FOT time to dump the SSR.  The delay impacted 
the SWEPAM instrument team which was hoping to ramp-up their high voltages 
now that the station keeping maneuvers has been completed.  This activity 
will be delayed to day 53.  The FOT was able to perform some commanding for 
the SWICS and SWIMS instrument teams during the remainder of the pass.
 
Anomalies:
*  During PreCal, D16 informed ACE MOC that they would not be able to 
support Ranging due to D17 requiring the ranging equipment to support CMTS 
Launch. Since there would be no need to configure for ranging, it was 
requested that PreCal be changed to 25 minutes.  Carrier was brought up at 
1800.

*  G98-0029 - DR# N45273 - When D16 tried to go 2way, telemetry at the 
MOC went static.  It was confirmed that D16 was still sending telemetry to 
JPL COM and that JPL COM was sending telemetry out.  Ops Chief, JPL COM, COM 
Manager and IP NOC were all involved  in trying to determine what the cause 
of the telemetry drop-out was.  At ~1935 the IP NOC informed ACE MOC that the 
IP Engineer had found problems with the Router and that he was looking into 
fixing it.  No time estimate could be given as to how long this would take.
JPL COM's server was rebooted remotely by IP NOC.  Telemetry was now being 
received by ISIS.

*  G98-0030 - DR# G03408 - D16 did NOT have Phase2 Software on their 
TGC.

*  G98-0031 - DR# G03409 - After rebooting current TGC with Phase2 
Software did Not give MOC Good Quality Telemetry, the TGC was then swapped.
At this point good telemetry began ariving in the MOC (21:46:38) and it was 
decided to extend the pass to 005000 to ensure all SSR data could be 
retreived.
 
 
 Activities:
180500 BOT - As a result of there being no Ranging
182000 BOT - Original
214638 Good Telemetry received in MOC
214909 S/C Commanded to 76k ADC Downlink Format
215000 EOT - Original
215112 SSR A put in Record Operate Mode
215239 SSR B  put in Playback Operate Mode
~2153 ADS Program Initialized
220902 S/C Commanded to Science Downlink Format
234908 SWICS Commanding Begun
546 SWICS Commanding Completed 
1024 SWIMS Commanding Begun
1853 SWIMS Commanding Completed 
2902 S/C Commanded to ADC Downlink Format
3707 Abort BIT Command sent to SSR B
4116 Poke Command sent to Active C&DH
4132 Poke Command sent to Inactive C&DH
4831 S/C Commanded to RTSW Downlink Format
5000 EOT

-------------------

Summary: 
Today's pass was only 1.5 hours in length and there was no ranging.  The 
short length of this pass was due to DSN resource conflicts which did not 
permit ACE to schedule a nominal 3.5 hour pass.  The impact of this short 
pass was that only 10 hours of SSR data was recovered.  The FOT will try to 
recover the remainder of the data - but - tomorrow's (day 54) pass is also 
only 1.5 hours (again due to DSN resource problems).  With back-to-back passes
 
of 1.5 hours duration the FOT may very well not be able to recover all of the 
SSR data - and -  this science data will be lost - and unrecoverable.  The 
FOT will continue to work with DSN to try to schedule passes whenever 
possible so that SSR data will not be lost.  The other impact of this 
shortened pass was that the SWEPAM instrument team was once again unable to 
perform their high-voltage ramp up sessions to return the SWEPAM E&I 
instruments to their nominal state.
 
 Activities:
1553 DSS66 AOS
1558 Commanded spacecraft to 87648 bps ADC downlink format
1602 SSR B placed in Playback mode
1611 SSR B placed in Record mode
1613 SSR A placed in Playback mode
1621 Commanded spacecraft to Science format
1659 SSR A placed in Idle mode
1702 Commanded spacecraft to ADC downlink format
1708 Commanded spacecraft to 87648 bps RTSW downlink format
1710 DSS66 LOS

-------------------

Pass Summary: 
This pass was limited to 1.5 hours in duration due to DSN resource allocation 
restrictions.  At AOS it was determined that the SEPICA instrument autonomy 
bin had fired and turned off the instrument.  This means that the SEPICA 
overall current draw from the bus was above 650 mA for a duration of 3 
seconds.  With limited pass time available for commanding, the SEPICA team 
decided not to try to turn the instrument back on during this pass.  In 
addition, because of the short length of the passes on both days 53 and 54 - 
it will be at least one or two more days before the data containing clues 
as to why SEPICA's current draw went above the autonomy bin limit can be 
downlinked for analysis.  
 
Anomalies:
*  Due to DSN inability to accomodate ACE's nominal 3.5 hr pass, 
Ranging data was not received from Station to maximize amount of time in the 
Actual Pass.
*  S98-0005 - SEPICA Autonomy Bin had Fired during non-contact period.  
PIs were notified and it was decided to NOT try and recover today due to 
shortened pass time (1.5 hrs).
*  G98-0032 - DR#N45274 - SFG3 at JPL went 
down.  MOC suffered 3 minute telemetry dropout from 171206-171508.  Missing 
Slices were redumped after completion of Dump.
 
Activities:
161000 BOT - Early
161345 S/C Commanded to 76k ADC Downlink format
161500 BOT - Original
161845 SSR A Dump of Segment 0, Slices 182-437 Begun
162158 Scrolled through Autonomy 1 and 2 Housekeeping formats to verify which 
Autonomy Bin had Fired
162518 S/C Commanded to Science Downlink format
162731 Telltale Clear command sent to Active C&DH to clear Autonomy Bin Fire 
Flag after it had been confirmed which Autonomy Bin had fired (SEPICA's).
163009 SWEPAM Post Stationkeeping Maneuver Commanding Begun
170551 SWEPAM Post Stationkeeping Maneuver Commanding Completed 
171206 Telemetry Outage due to SFG3 being down at JPL
171508 Telemetry being received in MOC again
172521 Redump begun of Slices 389 - 402 (lost during Telemetry Outage)
173000 SSR A put in Record Operate Mode (Segment 0)
173106 Abort BIT sent to SSR B
173231 SSR Contingency Bin Enabled
173349 S/C Commanded to ADC Downlink Format
173759 Poke Command sent to Active C&DH
173827 Poke Command sent to Inactive C&DH
174251 S/C Commanded to RTSW Downlink 
format

-------------------

Pass Summary: 
At the last minute - the FOT Scheduler was able to find a one-hour pass 
today with station D16. The FOT took advantage of this opportunity to try to 
dump some of the SSR data that might be helpful in determining the cause of 
the SEPICA anamoly, and to try to ramp up the voltages on the SWICS and SWIMS 
instruments which have been ramped down since the orbit maneuver last week.  
 
Activities:
182000 BOT
182306 S/C Commanded to 76k ADC Downlink format
182658 SSR B put in Playback Operate Mode (Segment 0)
182829 S/C Commanded to Science Downlink Format
183105 SWICS High Voltage Ramp Up Begun
183825 SWICS High Voltage Ramp Up Completed 
183904 SWIMS High Voltage Ramp Up Begun
184337 SWIMS High Voltage Ramp Up Completed
184355 SWIMS Stepping Table Upload Begun
184710 SWIMS Stepping Table Upload Completed
184753 SWICS Stepping Table Upload Begun
185058 SWICS Stepping Table Upload Completed
190350 Abort BIT Command sent to SSR B
190446 SSR Contingency Bin Enabled
190621 S/C Commanded to ADC Downlink Format
190853 Poke Command sent to Active C&DH
190910 Poke Command sent to Inactive C&DH
191321 S/C Commanded to RTSW Downlink 
Format

-------------------

Pass Summary: 
The FOT Scheduler was able to stretch this DSN contact to 4.5 hours - 
allowing the FOT to dump over 40 hours of backlogged SSR telemetry.  With the 
success of this extended pass, the FOT should be totally caught up with SSR 
dumps at the end of the day 56 pass (therefore, there will not be any loss 
of ACE science data resulting from the shortened passes during the past 
few days).  SWICS and SWIMS high- voltage ramp up sessions were performed 
during this pass.

Activities:
14:59 - AOS
15:00 - BOT
15:03 - ADC format started, 76384
15:08 - SSR B dump started, segment 0 slices 143-603
15:11 - Science format started
15:54 - SWICS high voltage activity started
15:58 - SWICS high voltage activity complete
16:00 - SWIMS high voltage activity started
16:09 - SWIMS high voltage activity complete
16:48 - SWICS high voltage activity started
16:54 - SWICS high voltage activity complete
16:55 - SWICS table load procedure started
16:59 - SWICS table load complete
17:06 - SSR B dump complete
17:07 - SSR B placed in record format
17:10 - SSR A dump started
17:13 - SWICS box load activity started
17:29 - SWICS box load activity complete
19:00 - ADC format started
19:18 - Abort bit sent to SSR A - Need to dump slices 500-564 tomorrow
19:25 - RTSW data started, 434 rate
19:25 - EOT

-------------------

Pass Summary: 
Pass initiation was delayed by 10 minutes today because the TGC at D16 was 
not configured properly to support ACE.  The FOT was able to recover all 
outstanding SSR data during this pass.  Today's activities focused on power- 
up and configuration of the SEPICA instrument.  After power-up the SEPICA 
current draw was nominal.

Anomalies:
G98-0033 -  Telemetry outage from 15:02 to 15:13 due to station using TGC 
with incorrect software, covered by DR#G03423

Activities:
15:02 - AOS D16
15:02 - Anomaly G98-0033
15:13 - Telemetry available again
15:16 - ADC downlink format started, 76384 rate
15:20 - SSR A dump started, from slice 500 - 564 (continued from Day 055)
15:26 - Autonomy bin 30 loaded with increased current value for SEPICA turn-on
15:33 - Switched to Autonomy 1 and 2 housekeeping formats for Autonomy bin 
verification
15:36 - SSR A dump completed
15:37 - SSR A dump placed in record format
15:39 - SSR B dump started
15:39 - Science downlink format started
15:47 - OCR#SEP-015 started - SEPICA turn-on procedure
16:58 - OCR#SEP-016 staretd - SEPICA pressure alarms set activity
17:00 - OCR#SEP-016 complete
17:45 - OCR#SEP-015 complete
17:46 - SEPICA operational heater enabled
17:47 - SEPICA survival heater disabled
17:50 - Autonomy bin 30 reloaded and enabled with nominal SEPICA current value
17:54 - Switched to Autonomy 1 and 2 housekeeping formats for Autonomy bin 
verification
17:56 - SSR B dump complete - 0 slices redumped
18:10 - ADC downlink format started
18:22 - RTSW downlink format started, 434 rate
18:30 - EOT D16

-------------------

Pass Summary: 
A number of short, unexplainable, data drops were experienced in the MOC 
today.  Otherwise, operations were nominal and the SEPICA instrument team 
reported that the instrument continues to behave normally.

Anomalies:
G98-0034 - Telemetry outage from 23:01 to 23:02 due to D16 losing lock on 
spacecraft, reasons unknown - DR#G03446
G98-0035 - Telemetry outage from 00:14 to 00:16, reason unknown
G98-0036 - D16 could not lock on 498 data at end of pass - sent commands 
to switch to low rate a second time and they were able to lock on the 498 
telemetry


Activities:
21:00 - AOS D16
21:10 - BOT
21:14 - ADC downlink format satrted, 76384 rate
21:16 - SSR B placed in record format
21:17 - SSR A dump started, 707 slices
21:26 - Science downlink format started
23:01 - Anomaly G98-0034
00:14 - Anomaly G98-0035
00:18 - SSR A dump complete
00:35 - SSR A redumps complete
00:41 - ADC downlink format started
00:51 - Anomaly G98-0036
00:54 - RTSW downlink format started, 434 rate
00:55 - EOT D16

-------------------

Pass Summary: 
Nominal pass that included an attitude maneuver and a dump of C&DH B Autonomy 
Bin contents.  The Autonomy Bin contents will be compared, offline, against 
the C&DH B ground image to verify the contents of these bins.  C&DH B 
Timetag and Block bin contents will be dumped during the upcoming week to 
complete this inactive C&DH bin content verification task.

Activities:
15:00 - BOT D16
15:02 - AOS
15:07 - ADC downlink format started, 76384 rate
15:10 - SSR A placed in record format
15:11 - SSR B dump started
15:17 - Radial catbed heaters on
16:51 - Attitude reor maneuver started
16:56 - Attitude reor maneuver complete
17:00 - Radial catbed heaters off
17:00 - SSR B dump complete
17:18 - SSR B redumps complete
17:22 - Inactive C&DH autonomy bin dump started to SSR B
17:34 - Inactive bin dump to SSR B complete
17:35 - SSR B tlm back to C&DH A
17:38 - SSR B segment 1 dump complete
17:40 - Science downlink format started
18:06 - ADC downlink format started
18:14 - RTSW downlink format started, 434 rate
18:25 - EOT D16

-------------------

Summary: 
There was ~2.5 hours of DSN contact today which included a hand-off from 
station D16 to D61.  Because of the shortened pass length the FOT was not 
able to dump all of the SSR data -- the remaining data will be dumped on day 
60.

Activities:
14:56 - AOS D16 
15:00 - BOT D16
15:03 - ADC downlink format started, 76384 rate
15:05 - SSR B placed in record format
15:06 - SSR A dump started
15:07 - ADS software started
15:19 - ADS software terminated
15:20 - Science downlink format started
16:40 - BOT D61
16:45 - Carrier transfer D16 to D61
16:46 - EOT D16
16:48 - AOS D61
16:55 - Receivers on S/C out of lock.  Reswept for uplink
16:57 - Resweep complete - Receivers still out of lock
16:59 - D61 performed another resweep with doubled range
17:02 - Resweep complete, receivers in lock.
17:03 - D61 AGC level low (-10 dB lower than expected), but no degradation in 
data quality.
17:03 - No-op to C&DH A
17:05 - No-op to C&DH B
17:20 - ADC downlink format started
17:25 - Abort bit sent to SSR A
17:33 - RTSW downlink format started, 434 rate
17:40 - EOT 
D61

-------------------