EPAM Release Notes from the EPAM Team - April 2015
--------------------------------------------

The 5-minute and hourly EPAM spin-averaged flux data sets provided by the ASC
have been reprocessed, using updated energy-bands and geometry factors.
Statistical uncertainties are now handled in a consistent manner for both the
hourly and the 5-minute averages. All fluxes are now calculated by the ASC
from rates data provided directly by the EPAM team.


EPAM Release Notes from the EPAM Team - January 2007
--------------------------------------------

The EPAM team identified a timing drift in the EPAM data. This timing
drift was ~ 1 minute/year. The team has identified the source
of this drift fixed the problem. The entire entire EPAM dataset has
been regenerated.


EPAM Release Notes from the EPAM Team - December 2003
--------------------------------------------

After DOY 302, 2003, the P1-P6 channels contain fill data (-999.9).
This is due to a sudden noise increase in the detector, which makes the output
from these channels unreliable.


EPAM Release Notes from the EPAM Team - July 2002
--------------------------------------------

After DOY 78, 1998, the E1, E2 and E3 channels contain fill data (-999.9).
This is due to a sudden noise increase in the detector, which makes the output
from these channels unreliable.

After DOY 327, 2001, the P1 channel contains fill data (-999.9).
This is due to a sudden noise increase in the detector, which makes the output
from this channel unreliable.


EPAM Release Notes from the EPAM Team - November 20, 2001
--------------------------------------------

The LEMS30 telescope with ion channels P1-P8 (0.046 MeV< E < 4.7 MeV)
is oriented 30 deg to the ~Sunward spacecraft spin axis.  Frequent
spacecraft maneuvers orient the telescope in such a manner that two of
its sectors directly observe solar Xrays and therefore are not
responding to the indicated ions.  This response was well known from
its progenitor (Ulysses/HISCALE).  This response has been observed
from P1-P5 and the level 2 data has been modified in such a manner as
to remove this from the data.  As the spacecraft is allowed to pass
closer and closer to the solar exclusion zone this effect may become
stronger and may effect channels higher than P5.  When an inaccurate
response is being observed it is obvious because the intensities are
significantly higher then one would expect from the ions under
investigation.  We suggest that users of the level 2 LEMS30 ion data
take this into consideration and if questions arise contact the EPAM
team for comment.  Questions of this nature can be sent to Dennis
Haggerty (dennis.Haggerty@jhuapl.edu).


EPAM Release Notes from the EPAM Team - October 25, 2000
--------------------------------------------

The following release note applies to ACE/EPAM data concerning time period from 
July 14-16, 2000 (Day of Year 196 to 198):

The EPAM instrument team has determined from the current available information
that some of the EPAM ion/electron channels may not be responding properly due
to high energy particles during the July 14-16, 2000 large solar energetic
particle events.  We summarize our current findings on our channel responses
in the following table.  Users who wish to use data that are in question
should first consult with the instrument lead investigator, Dr. Robert Gold
(robert.gold@jhuapl.edu):

ACE/EPAM Channel:	Time Period A	Time Period B		Time Period C
DE1, DE2, DE3, DE4	OK		OK			OK

E'1, E'2, E'3, E'4,
FP'5, FP'6, FP'7	OK		Under investigation	OK

P1, P2, P3, P4, P5,
P6, P7, P8		OK		Under investigation	OK

P'1, P'2, P'3, P'4,
P'5, P'6, P'7, P'8	OK		Under investigation	OK

W1, W2, W3, W5, W7	OK		Contact EPAM team	OK

W4, W6, W8		OK		Under investigation	OK

Time Period A: DOY 196 0000 - DOY 196 1000 UT
Time Period B: DOY 196 1000 - DOY 197 2000 UT
Time Period C: DOY 197 2000 - DOY 199 0000 UT

The EPAM team will continue to investigate the instrument response during
these time periods, we will update the status of the EPAM data here as such
information becomes available.


EPAM Release Notes from the EPAM Team - 1998
--------------------------------------------
On DOY 79, 1998, electron detector channels E1, E2, and E3 were lost.  From 
this time forward, there will be only fill data (-999.9) for these channels.