| This data set contains 17 differential fluxes of
protons (mainly), helium ions, Z.GE.6 ions, and electrons, plus one integral
flux of protons and electrons, as averaged over polar cap passes of the
SAMPEX spacecraft. A polar cap pass covers the time poleward of geomagnetic
latitude 70 deg. (Not all orbits have two polar cap passes.). For any
given species, the fluxes typically come from more than one of the sensors
(LICA, HILT, MAST, PET). Hence the inclusion of all instruments' data in
each single record. Differential fluxes are those for (mainly) protons
(Z.GE.1 channels at 5-12 and 19-27 MeV/n), helium ions (0.50-6.6, 4-9, 8-15,
9-38 MeV/n), Z.GE.6 ions (0.49-8.3, 8-42, 19.3-22.8, 22.8-31.0, 31.0-51.7,
41-220, 51.7-76.2, 76.2-113, 113-156 MeV/n), and electrons (1.5-6.0 MeV
from PET only). One LICA channel measured integral fluxes of ions .GT. 0.8 MeV/n
plus electrons .GT. 0.6 MeV). Data available for each polar cap pass are time
tags of the begin and end points of the averaging interval, the fluxes,
statistical uncertainties in the fluxes, instrument-specific flags, and a
flag indicating a north or south polar cap pass. Data are organized in two
different ways. Monthly ~500-KB ASCII files with records organized by instrument
are available from the SAMPEX Data Center at Caltech and from nssdcftp at
GSFC/SPDF, while monthly ~260 KB CDF-formatted files with records organized by
species are available from the ftp area underlying CDAWeb. The parameter level
information given below in this descriptor corresponds to the CDAWeb organization
of data. Format information for the ASCII version is given in the Information
URL of this descriptor. |
