Documentation for ISEE 3 Data Set 78-079A-01O: Solar Wind Electron Moments (168-seconds) This documentation is entered in NSSDC's Technical Reference File as #B44582. Retyped from hardcopy by H. K. Hills, February 1995; re-edited and new pages added May, 1995. New pages and separate original documents are separated by a line of equal signs. ============================================================================= Los Alamos [Letterhead] Date: 3 August 1989 Los Alamos National Laboratory In Reply Refer To: ESS-8-89:7-782 Los Alamos, New Mexico 87545 Mail Stop: D438 Telephone: (505)667-5389 Dr. Sumant Krishnaswamy Code 633 NSSDC NASA/Goddard Space Flight Center Greenbelt, MD 20771 Dear Sumant: Under separate cover I am sending you one magnetic tape containing high temporal resolution solar wind electron moments derived from measurements obtained by the Los Alamos electron experiment on ISEE-3 and covering the time interval from 2/27/80 through 10/16/82. The tape contains 3 files, one for each of the (partial) years 1980, 1981, 1982. The temporal resolution of these data is usually approximately 168 sec. Each data record in these files contains the date (yymmdd), the time in seconds, the UT time (hhmmss), the electron density, the bulk flow speed, the bulk flow azimuth, the minimum total temperature (tper), the maximum total temperature (tpar), the angle of maximum temperature, the heat flux and the heat flux azimuth. These moments and the sign conventions and such are as for the electron data from ISEE-3 previously submitted to you by Los Alamos. I am enclosing a sample listing of the data with the read format and other information indicated. Please contact me (Ph: 505-667-5389; SPAN: ESSDP1::073500) if you have any questions concerning this submission. Sincerely, [original signed "Jack"] J. T. Gosling JTG:mm Enc. a/s Cy: T. Von Rosenvinge, Code 611, NASA/GSFC R. Wales, Code 602, NASA/GSFC CRM-4(2)/A150 ============================================================================= Documentation for ISEE-3 Electron Moments 2/27/80-10/16/82 submitted to NSSDC FILE ORGANIZATION: Sequential RECORD FORMAT: Variable length, maximum 85 bytes RECORD ATTRIBUTES: Carriage return carriage control C C DEFINITION: 11 ELEMENTS OF ISEE-3 ELECTRON MOMENTS C ELEMENTS: C 1 IYYMMDD C 2 SECONDS C 3 UTIME HHMMSS C 4 DENSITY (cm-3) C 5 FLOW SPEED (km/sec) C 6 FLOW AZIMUTH (deg) C 7 TPER (MIN) (K) C 8 TPAR (MAX) (K) C 9 TEMP AZIMUTH (deg) C 10 HEAT FLUX (ergs cm-2 sec-1) C 11 HEAT FLUX AZIMUTH (deg) FORMAT: 1000 FORMAT (1X,I6,1X,2(F8.1,1X),5(1PE11.4,1X),15(/,6(1PE11.4,1X))) READ: READ (1,1000)IYYMMDD,SEC,UTIME,(PLASMA(I),I=4,11) SAMPLE: 800305 22436.0 61356.0 8.8114E+00 3.0126E+02 -6.7233E+00 1.2340E+05 1.4537E+05 1.3395E+02 5.3125E-03 3.1259E+02 800305 22604.0 61644.0 7.5871E+00 2.9537E+02 -5.9881E+00 1.2737E+05 1.4902E+05 1.2747E+02 6.7310E-03 3.0812E+02 800305 22772.0 61932.0 9.3456E+00 2.8794E+02 1.3110E-01 1.2754E+05 1.4727E+05 1.3980E+02 6.0699E-03 3.1907E+02 800305 22940.0 62220.0 1.0521E+00 3.0183E+02 -4.6196E+00 1.2557E+05 1.3295E+05 1.5913E+02 2.5927E-03 3.3260E+0 800305 23108.0 62508.0 1.0970E+00 2.9936E+02 -7.6814E-01 1.2497E+05 1.3390E+05 1.5175E+02 3.8472E-03 3.3633E+02 800305 23276.0 62756.0 1.1400E+00 2.9753E+02 -3.6773E+00 1.2078E+05 1.2737E+05 1.6012E+02 2.4309E-03 3.4607E+02 800305 23444.0 63044.0 8.8506E+00 2.8070E+02 2.2707E+00 1.2471E+05 1.4497E+05 1.4409E+02 6.8817E-03 1.4066E+02 ============================================================================= Los Alamos [Letterhead] Date: 29 August 1989 Los Alamos National Laboratory In Reply Refer To: ESS-8-89:7-782 Los Alamos, New Mexico 87545 Mail Stop: D438 Telephone: (505)667-5389 Dr. Sumant Krishnaswamy Code 633 NSSDC NASA/Goddard Space Flight Center Greenbelt, MD 20771 Dear Sumant: Under separate cover I am sending you one magnetic tape containing high temporal resolution solar wind electron moments derived from measurements obtained by the Los Alamos electron experiment on ISEE-3 (ICE) and covering the time interval from 12/23/83 through 4/30/86. The tape contains 2 files, one for the 1983, 1984 data and one for the 1985, 1986 data. The temporal resolution of these data is usually approximately 168 secs. Each data record in these files contains the date (yymmdd), the time in seconds, UT time (hhmmss), the electron density, the bulk flow speed, the bulk flow azimuth, the minimum total temperature (tper), the maximum total temperature (tpar), the angle of maximum temperature, the heat flux and the heat flux azimuth. These moments and the sign conventions and such are as for the electron data from ISEE-3 previously submitted to you by Los Alamos. I am enclosing a sample listing of the data with the read format and other information indicated. Please contact me (Ph: 505-667-5389; SPAN: ESSDP1::073500) if you have any questions concerning this submission. Sincerely, [original signed "Jack"] J. T. Gosling JTG:mm Enc. a/s Cy: T. Von Rosenvinge, Code 611, NASA/GSFC R. Wales, Code 602, NASA/GSFC CRM-4(2)/A150 ============================================================================= Documentation for ISEE-3 Electron Moments 12/23/83-4/30/86 submitted to NSSDC FILE ORGANIZATION: Sequential RECORD FORMAT: Variable length, maximum 85 bytes RECORD ATTRIBUTES: Carriage return carriage control C C DEFINITION: 11 ELEMENTS OF ISEE-3 ELECTRON MOMENTS C ELEMENTS: C 1 IYYMMDD C 2 SECONDS C 3 UTIME HHMMSS C 4 DENSITY (cm-3) C 5 FLOW SPEED (km/sec) C 6 FLOW AZIMUTH (deg) C 7 TPER (MIN) (K) C 8 TPAR (MAX) (K) C 9 TEMP AZIMUTH (deg) C 10 HEAT FLUX (ergs cm-2 sec-1) C 11 HEAT FLUX AZIMUTH (deg) FORMAT: 1000 FORMAT (1X,I6,1X,2(F8.1,1X),5(1PE11.4,1X),15(/,6(1PE11.4,1X))) READ: READ (1,1000)IYYMMDD,SEC,UTIME,(PLASMA(I),I=4,11) SAMPLE: 840401 26.9 26.0 3.2028E+00 5.8077E+02 1.8164E+00 1.5044E+05 2.5230E+05 1.5053E+02 1.1582E-02 3.3081E+02 840401 110.9 150.0 2.9744E+00 5.5887E+02 -2.0820E+00 1.5699E+05 2.1810E+05 1.6735E+02 8.2716E-03 3.4659E+02 840401 194.8 314.0 2.9109E+00 4.9453E+02 3.2754E+00 1.5381E+05 2.5712E+05 1.5537E+02 1.2564E-02 3.3386E+02 840401 278.8 438.0 2.8944E+00 5.2070E+02 -2.0202E+00 1.5557E+05 2.1681E+05 1.5439E+02 1.2976E-03 3.3458E+02 840401 362.8 602.0 2.9524E+00 5.6221E+02 -1.0082E+00 1.5702E+05 2.2177E+05 1.6347E+02 8.8245E-03 3.4631E+02 840401 446.7 726.0 2.8425E+00 5.6907E+02 -4.9831E-01 1.5635E+05 2.3119E+05 1.6421E+02 8.9885E-03 3.4269E+02 ================================================================================ Documentation for ICE Electron Moments 05/01/86 - 06/13/92 submitted to NSSDC FILE ORGANIZATION: Sequential RECORD FORMAT: Variable length, maximum 85 bytes RECORD ATTRIBUTES: Carriage return carriage control C C DEFINITION: 11 ELEMENTS OF ICE ELECTRON MOMENTS C ELEMENTS: C 1 IYYMMDD C 2 SECONDS C 3 UTIME HHMMSS C 4 DENSITY (cm-3) C 5 FLOW SPEED (km/sec) C 6 FLOW AZIMUTH (deg) C 7 TPER (MIN) (K) C 8 TPAR (MAX) (K) C 9 TEMP AZIMUTH (deg) C 10 HEAT FLUX (ergs cm-2 sec-1) C 11 HEAT FLUX AZIMUTH (deg) FORMAT: 1000 FORMAT (1X,I6,1X,2(F8.1,1X),5(1PE11.4,1X),15(/,6(1PE11.4,1X))) READ: READ (1,1000)IYYMMDD,SEC,UTIME,(PLASMA(I),I=4,11) SAMPLE: [Note: 5 characters at line end are lost on the four long lines.] 890102 15612.2 42012.0 5.7902E+00 5.3570E+02 -6.1307E+00 1.3123E+05 1.316 1.7066E+02 5.6370E-04 9.9909E+01 890102 15708.2 42148.0 5.7651E+00 5.5020E+02 -4.3919E+00 1.2932E+05 1.331 1.7476E+02 7.7986E-04 1.7159E+02 890102 15804.1 42324.0 5.6451E+00 5.2928E+02 -3.7264E+00 1.3313E+05 1.417 1.2090E+02 3.1531E-03 2.9679E+02 890102 15900.1 42500.0 5.8707E+00 5.2292E+02 -5.0400E+00 1.2760E+05 1.406 1.4451E+02 2.9013E-03 3.2543E+02 [Note: 5 characters at line end are lost on the four long lines as listed in the original above. The following displays the full 85 characters of those long lines, putting the last 5 charcters on the following line.] 890102 15612.2 42012.0 5.7902E+00 5.3570E+02 -6.1307E+00 1.3123E+05 1.316 8E+05 1.7066E+02 5.6370E-04 9.9909E+01 890102 15708.2 42148.0 5.7651E+00 5.5020E+02 -4.3919E+00 1.2932E+05 1.331 5E+05 1.7476E+02 7.7986E-04 1.7159E+02 890102 15804.1 42324.0 5.6451E+00 5.2928E+02 -3.7264E+00 1.3313E+05 1.417 4E+05 1.2090E+02 3.1531E-03 2.9679E+02 890102 15900.1 42500.0 5.8707E+00 5.2292E+02 -5.0400E+00 1.2760E+05 1.406 7E+05 1.4451E+02 2.9013E-03 3.2543E+02 [Tape label is ICENEW] FILES: File size in VAX blocks File name (1 VAX block = 512 bytes) --------- -------------------------- 8605.ICE;1 424 8606.ICE;1 352 8607.ICE;2 302 8608.ICE;1 241 8609.ICE;1 805 8610.ICE;1 1268 8611.ICE;1 1497 8612.ICE;1 1464 8701.ICE;1 835 8702.ICE;1 237 8703.ICE;2 104 8704.ICE;1 159 8705.ICE;1 503 8706.ICE;1 603 8707.ICE;1 425 8708.ICE;1 909 ================================================================================ 8709.ICE;2 1108 8710.ICE;2 942 8711.ICE;2 837 8712.ICE;1 841 8801.ICE;1 815 8802.ICE;2 834 8803.ICE;1 559 8804.ICE;1 1018 8805.ICE;2 995 8806.ICE;1 1068 8807.ICE;1 1347 8808.ICE;2 889 8809.ICE;2 1119 8810.ICE;1 1353 8811.ICE;2 1046 8812.ICE;2 1029 8901.ICE;1 668 8902.ICE;1 228 8903.ICE;1 456 8904.ICE;1 352 8905.ICE;1 600 8906.ICE;1 653 8907.ICE;1 669 8908.ICE;1 662 8909.ICE;1 591 8910.ICE;2 344 8911.ICE;1 305 8912.ICE;1 284 9001.ICE;1 172 9002.ICE;1 182 9003.ICE;1 313 9004.ICE;1 432 9005.ICE;1 300 9006.ICE;2 635 9007.ICE;1 633 9008.ICE;1 337 9009.ICE;1 441 9010.ICE;1 230 9011.ICE;1 129 9012.ICE;1 180 9101.ICE;1 112 9102.ICE;1 355 9103.ICE;1 286 9104.ICE;1 273 9105.ICE;1 283 9106.ICE;1 272 9107.ICE;2 510 9108.ICE;1 197 9109.ICE;1 357 9110.ICE;2 553 9111.ICE;1 798 9112.ICE;1 368 9201.ICE;1 83 9202.ICE;1 91 9203.ICE;1 170 9204.ICE;1 241 9205.ICE;1 192 9206.ICE;1 82 Total of 74 files, 40947 blocks. ================================================================================ [Retyped by H. K. Hills, February 28, 1995.] NSSDC data set 78-079A-01O ========================== ISEE-3, "Solar wind electron moments (168-sec)" These data have been supplied by Dr. J. T. Gosling, Los Alamos National Laboratory and contain high temporal resolution solar wind electron moments derived from measurements obtained by the Los Alamos electron experiment on the ISEE-3/ICE spacecraft. The ion instrument on ISEE-3 failed on 1980-Feb-26 so no proton data are available from this instrument after that date. The temporal resolution of these data is usually approximately 168 seconds. Each data record (2 lines) contains 1) the date (YYMMDD), 2) the time in seconds form start of day (SSSSS.S), 3) the UT time of day in HHMMSS>0, 4) the electron density (cm-3), 5) the bulk flow speed (km/s), 6) the bulk flow azimuth (GSE+180 degrees), 7) the minimum total temperature (Tperp, deg K), 8) the maximum total temperature (Tpar, deg K), 9) the angle of maximum temperature (degrees, 135=Parker spiral angle) 10) the heat flux (erg cm-2 sec-1), 11) the heat flux azimuth (degrees, 0=antisunward, 90=towards dawn) Format: READ(1,1000) IYYMMDD,SEC,UTIME,(PLASMA(I),I=1,8) 1000 FORMAT(1X, I6, 1X, 2(F8.1,1X), 5(1PE11.4,1X) / 3(1PE11.4,1X)) Example (data for second 86103.0 [23:55:03.0 UT] on 1982-jan-30): 820130 86103.0 235503.0 2.4347E+00 6.2305E+02 9.0099E-01 1.3549E+05 2.234 6.8713E+01 1.0535E-02 2.4814E+02 [HKH note: characters are missing at end of first line here, as on original] Note that the first line of each time sample is 85 characters long, and the second line is 35 characters long. ============================================================================= Bulk flow speed and azimuth (parameters 5 and 6) ------------------------------------------------ The plasma bulk flow speed is measured relative to the spacecraft and the bulk flow azimuth is measured positive from the (spacecraft-centered) solar ecliptic (SE) -X direction toward the SE -Y direction, i.e., 0 degrees corresponds to antisunward flow and positive flow angles correspond to flow towards dawn (+90 deg), and negative flow angles correspond to flow towards dusk (-90 deg). Thus, antisunward = 0 deg = -GSEX [ should be SEC?] toward dawn = +90 deg = -GSEY sunward flow= 180 deg = +GSEX toward dusk = -90 deg = +GSEY Z-axis = spacecraft spin axis direction, North The spacecraft spin axis was maintained within 0.5 degree of perpendicular to the ecliptic. T-max azimuth (parameter 9) --------------------------- The Tmax azimuth ranges from 0 to 180 degs with 0 and 180 degs corresponding to alignment with the sun-spacecraft line and 135 degs corresponding to the nominal Parker field spiral angle at 1 AU. The alignment of the maximum temperature angle with the magnetic field is usually within 15 degrees. The electron temperature maximum is aligned perpendicular to the field about 2% of the time in the solar wind. See papers by J.L. Phillips et al. in JGR 1989, 1990. Heat flux azimuth (parameter 11) -------------------------------- Plasma heat flux azimuth (where available) is similar to the velocity azimuth, but it is measured from 0 to 360 degrees, i.e., 0 and 360 degrees correspond to heat flux directed antisunward, 180 degrees corresponds to sunward heat flux, 90 degrees corresponds to a heat flux directed toward dawn, and 270 degrees corresponds to a heat flux directed toward dusk. Thus, antisunward = 0,360 deg = -GSEX [ should be SEC?] toward dawn = 90 deg = -GSEY sunward flux= 180 deg = +GSEX toward dusk = 270 deg = +GSEY Data gaps --------- There should be no gaps in the period 2/27/80 to 10/16/82 other than gaps caused by the tracking of the satellite. In particular the coverage for 1981 should be complete. -------------------------------------------------------------------- The above is based on information provided by Jack Gosling [(505)-667-5389 or ESSDP1:L073500]. -------------------------------------------------------------------- For a description of the Los Alamos instrument on the ISEE-3/ICE spacecraft, see: Bame, S.J., J.R. Asbridge, H.E. Felthauser, J.P. Glore, H.L. Hawk, and J. Chavez, ISEE-C solar wind plasma experiment, IEEE Trans. Geosci. Electron., GE-16, 160-162, 1978. ******************************************************************* Sample data: ----------- qq ******************************************************************* See also Russell and Petrinec, GRL, 19, No. 10, 961-963, May 22, 1992. ============================================================================= NSSDC DATA SET 78-079A-01O --------------------------- Tape labels, file names, and file sizes --------------------------------------- SPACECRAFT: ISEE-3/ICE DATA SET NAME: SOL. WIND ELECTRON MOM. (168-SEC) SOURCE: DR. J. T. GOSLING MS-D438, LOS ALAMOS NATIONAL LABORATORY LOS ALAMOS, NM 87545 Phone: 505-667-5389 e-mail (SPAN): ESSDP1::073500 TIME SPAN: 27Feb80-16oct82 and 23Dec83-30Apr86 QUANTITY: 2 tapes TAPE MEDIUM AND DENSITY: 9-track, 6250 BPI TAPE FORMAT: ASCII, VAX STANDARD LABELLED TAPES TAPE BLOCK SIZE: 32768 Bytes (1980-82 data tape, label="IC3OLD") 2048 Bytes (1983-86 data tape, label="EXICE") DATA FORMAT: See cover letter from J. T. Gosling Data File Size Tape Label Data File Name Tape blocks/VAX blocks/MBy/lines ---------- -------------- --------------------------------- IC3OLD IC3OLD.80 496 / 31206 / 16/ 253604 IC3OLD.81 529 / 33285 / 17/ 270500 IC3OLD.82 383 / 24186 / 12/ 196066 EXICE VX8384.IC 6325 / 24902 / 12 / 202376 VX8586.IC 2678 / 10543 / 5 / 85680 ------------------------------------------------------------------- Notes: 1. Since these are standard labelled tapes, each data file has a header file and a trailer file associated with it. 2. On a VAX, to copy (e.g.) file IC3OLD.80 from tape to a disk file with the same name, do: $ ALLOCATE : $ MOUNT : IC3OLD $ COPY :IC3OLD.80 *.* This will require 31,206 VAX blocks on disk, and will create an ASCII file consisting of 253,604 lines of data. To copy all the files from (e.g.) tape IC3OLD to disk, do: $ ALLOCATE : $ MOUNT : IC3OLD $ COPY :*.* *.* This will require about 89,000 VAX blocks. Time Span Data File YY/MM/DD hh:mm:ss.s to YY/MM/DD hh:mm:ss.s --------- -------------------------------------------- IC3OLD.80 80/02/01 00:10:56.0 to 80/12/31 23:59:54.0 IC3OLD.81 81/01/01 00:04:06.0 to 81/12/31 23:57:20.0 IC3OLD.82 82/01/01 02:52:15.0 to 82/10/16 23:59:50.0 VX8384.IC 83/12/22 00:05:07.0 to 84/12/31 11:46:31.0 VX8384.IC 85/01/01 02:16:56.0 to 86/04/30 18:24:28.0 ------------------------------------------------------------ ============================================================================= From: TAYLOR::SUMANT "Sumant Krishnaswamy, NSSDC" 8-MAY-1991 16:36:58.8 To: NSSDCA::SUMANT CC: Subj: (To Gosling): Error bars on ISEE data parameters From: NCF::SUMANT "Sumant Krishnaswamy, NSSDC" 2-MAY-1991 12:45:16.38 To: ESSDP1::073500 CC: SUMANT Subj: Error bars on ISEE data parameters Jack, Do you have any estimates of the uncertainties or error bars associated with the various electron and proton moments, flow angles, and other high time resolution parameters (solar wind), geotail, g-z) on the ISEE-1, 2, and -3 data tapes you have sent to us over the last couple of years? Are they discussed in any of your papers? Thanks. Sumant ============================================================================= From: TAYLOR::SUMANT "Sumant Krishnaswamy, NSSDC" 8-MAY-1991 16:46:01.2 To: NSSDCA::SUMANT CC: Subj: (From Gosling): Error bars on ISEE data parameters From: ESSDP1::073500 "Jack Gosling" 3-MAY-1991 13:07:26.91 To: NCF::SUMANT CC: 073500 Subj: Error bars on ISEE data parameters Sumant, We do not have any error bars to provide you and I do not recall that they have ever been discussed in any of our publications. Jack Gosling =============================================================================