IMP-8 MERGE Data Record Map

- Time resolution of each MERGE record = 20 seconds.
- There are 425 data items per MERGE record.
- Each item is in VAX-native, floating point (real*4) format.
- Last update: 12-Feb-1998

RECORD
ITEM NUMBER		 RECORD ITEM DESCRIPTION PHYSICAL
UNITS
I. RECORD HEADER
1 Record time-average format:
#1 = averaging interval in units of 20.48 seconds
(e.g., for 5-minute averages, #1 = 15.0)		 N/A
2 Data completeness flag:
indicates which data types are on present record:
#2 = 1.0 CPME
#2 = 2.0 MAG
#2 = 3.0 CPME, MAG only
#2 = 4.0 EPE
#2 = 5.0 CPME, EPE
#2 = 6.0 EPE, MAG
#2 = 7.0 EPE, MAG, CPME
#2 = 8.0 PLS
#2 = 9.0 PLS, CPME
#2 = 10.0 PLS, MAG
#2 = 11.0 PLS, CPME, MAG
#2 = 12.0 PLS, EPE
#2 = 13.0 PLS, EPE, CPME
#2 = 14.0 PLS, EPE, MAG
#2 = 15.0 PLS, EPE, MAG, CPME
#2 = 16.0-31.0 Other data present		 N/A
3 number of 20.48 second CPME averages merged in present record:
#3 can vary from 0.0 (i.e., No records -> fill) up to the amount in #1		 N/A
4 number of 15.36 second MAG records averaged in present record N/A
5 number of ~20 second EPE records averaged in present record N/A
6 number of ~1 minute PLS records in present record N/A
7 number of other data records in this output record N/A
8 year of record (4-digit, e.g. 1978.) N/A
9 day of year (DOY) of record (Jan 1 = 1.0) N/A
10 hour of day of record (0.0 - 23.0) N/A
11 minute of hour of record (0.0 - 59.0) N/A
12 second of minute of record (0.0 - 60.0) N/A
13 - 15 spacecraft X-, Y-, Z-coords. in system GSE
(Geocentric Solar Ecliptic) 		kilometers
16 - 18 spacecraft X-, Y-, Z-coords. in system GSM
(Geocentric Solar Ecliptic)		 kilometers
19 - 21 spacecraft X-, Y-, Z-coords. in system GEI
(Geocentric Equatorial Inertial)		 kilometers
22 spacecraft radial distance from Earth center kilometers
23 spacecraft right ascension in system CI (Celestial Inertial) degrees
24 spacecraft declination in system CI degrees
25 right ascension of spacecraft velocity vector in system CI degrees
26 declination of spacecraft velocity vector in system CI degrees
27 - 29 Moon's X-, Y-, Z-coords. in system GSE kilometers
30 - 32 Sun's X-, Y-, Z-coords. in system GEI AU
II. CHARGED PARTICLE MEASUREMENT EXPERIMENT (CPME) DATA
33 P1 [protons, 0.29 - 0.50 MeV] counts/sec
34 P2 [protons, 0.50 - 0.96 MeV] counts/sec
35 P3 [protons, 0.96 - 2.00 MeV] counts/sec
36 P4 [protons, 2.0 - 4.6 MeV] counts/sec
37 P5 [protons, 4.6 - 15.0 MeV] counts/sec
38 Z4 (for IMP 8) [ions (Z>=3), 6 - 105 MeV/nuc] counts/sec
39 P7 [protons, 15 - 25 MeV] counts/sec
40 P8 [protons, 25 - 48 MeV] counts/sec
41 P9 [protons, 48 - 96 MeV] counts/sec
42 P10 [protons, 96 - 145 MeV] counts/sec
43 P11 [protons, 190 - 440 MeV] counts/sec
44 A1 [alpha particles (Z=2), 0.59 - 1.14 MeV/nuc] counts/sec
45 A2 [alpha particles (Z=2), 1.14 - 1.80 MeV/nuc] counts/sec
46 A3 [alpha particles (Z=2), 1.8 - 4.2 MeV/nuc] counts/sec
47 A4 [alpha particles (Z=2), 4.2 - 12.0 MeV/nuc] counts/sec
48 A5 [alpha particles (Z=2), 12 - 28 MeV/nuc] counts/sec
49 A6 [alpha particles (Z=2), 28 - 52 MeV/nuc] counts/sec
50 Z1 [ions (Z>=3), 0.7 - 3.3 MeV/nuc] counts/sec
51 Z1' (= Z1 - Z2) [ions (Z>=3), 0.70 - 1.45 MeV/nuc] counts/sec
52 Z2 [ions (Z>=3), 1.45 - 3.30 MeV/nuc] counts/sec
53 Z3 [ions (Z>=3), 3.1 - 8.8 MeV/nuc] counts/sec
54 E4 [electrons, 0.22 - 2.5 MeV] counts/sec
55 E5 [electrons, 0.50 - 2.5 MeV] counts/sec
56 E6 [electrons, 0.80 - 2.5 MeV] counts/sec
57 M [ions >35 MeV/nuc] counts/sec
58 S [ions, >50 MeV/nuc] counts/sec
59 - 84 uncertainties of #33 - #58 counts/sec
85 - 110 number of records for #33 - #58 N/A
111 P1 (first 10.24 seconds of this interval) counts/sec
112 P2 (first 10.24 seconds of this interval) counts/sec
113 P3 (first 10.24 seconds of this interval) counts/sec
114 E4 (first 10.24 seconds of this interval) counts/sec
115 E5 (first 10.24 seconds of this interval) counts/sec
116 E6 (first 10.24 seconds of this interval) counts/sec
117 - 122 Uncertainties of #111 - #116 counts/sec
123 - 128 DQF's (Data Quality Flag) for #111 - #116 N/A
129 P1 (second 10.24 seconds of this interval) counts/sec
130 P2 (second 10.24 seconds of this interval) counts/sec
131 P3 (second 10.24 seconds of this interval) counts/sec
132 E4 (second 10.24 seconds of this interval) counts/sec
133 E5 (second 10.24 seconds of this interval) counts/sec
134 E6 (second 10.24 seconds of this interval) counts/sec
135 - 140 uncertainties of #129 - #134 counts/sec
141 - 146 DQF's for #129 - #134 N/A
147 - 154 P1 sectors 1 - 8 (first 10.24 seconds of this interval) counts/sec
155 - 162 uncertainties of #147 - #154 counts/sec
163 DQF for #147 - #154 N/A
164 - 171 P1 sectors 1 - 8 (second 10.24 seconds of this interval) counts/sec
172 - 179 Uncertainties of #164 - #171 counts/sec
180 DQF for #164 - #171 N/A
181 - 188 E4 sectors 1 - 8 (first 10.24 seconds of this interval) counts/sec
189 - 196 uncertainties of #181 - #188 counts/sec
197 DQF for #181 - #188 N/A
198 - 205 E4 sectors 1 - 8 (second 10.24 seconds of this interval) counts/sec
206 - 213 uncertainties of #198 - #205 counts/sec
214 DQF for #198 - #205 N/A
215 - 222 A1 sectors 1 - 8 counts/sec
223 - 230 uncertainties of #215 - #222 counts/sec
231 DQF for #215 - #222 N/A
232 - 239 A3 sectors 1 - 8 counts/sec
240 - 247 uncertainties of #232 - #239 counts/sec
248 DQF for #232 - #239 N/A
249 - 256 Z1 sectors 1 - 8 counts/sec
257 - 264 uncertainties of #249 - #256 counts/sec
265 DQF for #249 - #256 N/A
266 - 273 Z2 sectors 1 - 8 counts/sec
274 - 281 uncertainties of #266 - #273 counts/sec
282 DQF for #266 - #273 N/A
283 spacecraft clock sec
284 pseudo sequence counter N/A
III. MAGNETIC FIELD (MAG) DATA
1. Interpolated (weighted-average) MAG data
285 - 287 magnetic field vector components BX, BY, BZ in system GSE nT (nanotesla)
288 average vector field magnitude nT
289 polar angle of vector-average magnetic field (measured from +Z_GSE axis) degrees
290 azimuth of vector-average magnetic field in system GSE degrees
291 - 296 uncertainties of #285 - #290 as applicable
297 average of field magnitudes performed over record interval N/A
298 - 300 magnetic field vector components BX, BY, BZ in sysyem GSM nT
301 polar angle of vector-average magnetic field (measured from +Z_GSM axis) degrees
302 azimuth of vector-average magnetic field in system GSM degrees
2. Raw average MAG data
303 number of 15.36 sec. MAG records
used in interpolation (0.0 - 3.0)		 N/A
304 offset time for first MAG record:
MAG record time - CPME record time		 sec
305 - 307 BX, BY, BZ (GSE) from first MAG record nT
308 - 310 rms uncertainties of #305 - #307 nT
311 offset time for second MAG record sec
312 - 314 BX, BY, BZ (GSE) from second MAG record nT
315 - 317 rms uncertainties of #312 - #314 nT
318 offset time for third MAG record sec
319 - 321 BX, BY, BZ (system GSE) from third MAG record nT
322 - 324 rms uncertainties of #319 - #321 nT
IV. ENERGETIC PARTICLE EXPERIMENT (EPE) DATA
325 - 340 L1, sectors 1 - 16 [ions (Z>1), 0.05 - 0.22 MeV/nuc] counts
341 - 356 L2, sectors 1 - 16 [ions (Z>1), 0.22 - 0.80 MeV/nuc] counts
357 - 372 1973/303 - 1989/365: L7, sectors 1 - 16 [electrons, 0.03 - 0.10 MeV]
1990/001 - onwards : F, sectors 1 - 16 [electrons and ions (Z>1), >0.015 MeV/nuc] 		counts
373 - 388 1973/303 - 1989/365: L8, sectors 1 - 16 [electrons, 0.10 - 0.20 MeV]
1990/001 - onwards : L7, sectors 1 - 16 [electrons, 0.03 - 0.10 MeV] 		counts
389 - 404 1973/303 - 1989/365: F, sectors 1 - 16 [electrons and ions (Z>1), >0.015 MeV/nuc]
1990/001 - onwards : L8, sectors 1 - 16 [electrons, 0.10 - 0.20 MeV] 		counts
405 EPE offset time: EPE record time - CPME record time sec
V. SOLAR WIND PLASMA (PLS) DATA
406 Source identification for plasma data:
#406 = 1.0 MIT, acquisition mode
#406 = 2.0 MIT, tracking mode
#406 = 3.0 MIT, non-tracking mode
#406 = 4.0 MIT, no data
#406 = 5.0 LANL data		 N/A
407 PLS offset time: PLS record time - CPME record time sec
408 raw averaging interval for PLS records sec
409 solar wind flow speed km/sec
410 solar wind plasma temperature K
411 solar wind plasma ion number density ions/cc
412 solar wind flow latitude (>0 from South of Sun) degrees
413 solar wind flow longitude (>0 from West of Sun) degrees
414 - 418 for MIT high-res. data, DQFs for #409 - #413, e.g.:
#409 = 0.0 bad data
#409 = 1.0 good data		 N/A
VI. OTHER DATA (OPTIONAL)
419 Kp index N/A
420 AE index N/A
421 C9 index N/A
422 Dst index N/A
423 Sunspot index N/A
424 - 425 Spares N/A