Trapped ACR Intensities
Posted June 28, 2007
From: Richard Selesnick, The Aerospace Corp., June 2007
Three text files with Anomalous Cosmic Ray (ACR) data used in the associated figures (see Reference #2):
- Normalized O intensity as a function of time. Associated figure
- Normalized O intensity as a function of pitch angle. Associated figure
- Normalized O intensity as a function of invariant latitute. Associated figure
file tACR1.txt columns: 1. Center of SAMPEX time bin [seconds since start of 1992] 2. Normalized oxygen intensity 3. 1-sigma error 4. Counts per bin file tACR2.txt columns: 1. Center of pitch angle bin [deg] 2. Normalized oxygen intensity 3. 1-sigma error 4. Counts per bin file tACR3.txt columns: 1st line and every 9th line 1. Center of invariant latitude bin (deg) for the energy spectrum in the following 8 lines 2. Corresponding L shell value [L = 1/cos^2(InvLat)] following 8 lines 1. Geometric mean energy of bin [MeV/nucleon] 2. Oxygen intensity [ions/(cm^2.s.sr.MeV/nucleon)] 3. 1-sigma error The oxygen intensity for any given time, pitch angle, invariant latitude, and energy is the product of the 3 intensity values from the corresponding bins in each of the 3 files.
References:
1. Selesnick, R. S., A. C. Cummings, J. R. Cummings, R. A. Mewaldt, E. C. Stone, T. T. von Rosenvinge, Geomagnetically trapped anomalous cosmic rays, J. Geophys. Res., 100(A6), 9503-9518, 10.1029/94JA03140, 1995.
2. Selesnick, R. S., A. C. Cummings, R. A. Leske, R. A. Mewaldt, E. C. Stone, J. R. Cummings, Solar cycle dependence of the geomagnetically trapped anomalous cosmic rays, Geophys. Res. Lett., 27(15), 2349-2352, 10.1029/2000GL000049, 2000.
3. Selesnick, R. S.., Geophys. Res. Lett., 28(17), 3417-3420, 10.1029/2001GL013383, 2001