CDAW 6-7 S/C Brief Help Descriptions

DMSP-5D-F2 (77-044A)

 Polar Geocentric,T=102 m,Perigee / Apogee=811 / 869 km. USAF meteorological s/c. Visual/IR imagery, IR, X-ray, plasma, electrons, and RF ionospheric monitor. Data for 6A/B are precipitating electrons 51 eV to 20 keV (16 channels), and s/c geographic/magnetic location.
Resolution = 3 s. 




ESA GEOS 2 (78-071A)

Equatorial Geostationary,T=23.9 h, Perigee / Apogee=5.59 Re / 5.62 Re. For IMS
(International Magnetospheric Study). Spin: 10 rpm.  To measure dc and ac E and
B  fields; plasma; energy and angular distribution of energetic electrons and
ions. 
Events 6A and  6B  







GOES 2 (77-048A)

Equatorial Geostationary,T=23.9 h, Perigee / Apogee=5.53 Re / 5.69 Re, Launched
16 June 1977. To measure the geomagnetic field from a geo-synchronous orbit.

Data for events 6A and 6B.







GOES 3 (78-062A)

Equatorial Geostationary,T=24.01 h, Perig / Apogee=5.57 Re /  5.76Re, Launched
22 May 1981. To measure the geomagnetic field from a geo-synchronous orbit.

CDAW-6 has magnetometer data for events 6A and 6B.







GROUND BASED Observations

Most of CDAW 6 and 7 ground based data are related to geomagnetic field values,
variations, and indexes; and riometer data. Some are from chains of stations.

CDAW 6A has 5; 6B has 6 ground-based data sets; CDAW 7A and 7B each have
one.







IMP-8 (73-078A, IMP-J)

Geocentric, T=12 d, Perigee / Apogee=22.1 Re / 45.3 Re, During CDAW 6: located
in Solar Wind, 12 Re ahead of dawn Bow Shock. During CDAW 7: at dawn Bow Shock.
Observed energetic particles, plasma, and B-field parameters to compare with
other s/c. 

CDAW 6 has plasma and B-field data. CDAW 7 has plasma data.







ISEE 1 (77-102A, Mother)

Geocentric, Period=57.4 h, Apogee=21.7 Re. During CDAW 6: -6 to -20 Re in
central tail. During CDAW 7: -20 Re in central tail. To measure E- and B-fields
and low-energy particle fluxes in the Solar Wind, Bow Shock, and outer
magnetosphere with ISEE 2.

CDAW 6 and 7 have E, B, proton and electron data, for various Events.







ISEE 2 (77-102B, Daughter)

Geocentric, Period=57.6 h, Apogee=21.7 Re. During CDAW 6: -6 to -20 Re in
central tail. During CDAW 7: -20 Re in central tail. To measure E- and B-fields
and low-energy particle fluxes in the Solar Wind, Bow Shock, and outer
magnetosphere with ISEE 1.


CDAW 6 and 7 have E, B, proton and electron data, for various Events.







ISEE 3 (78-079A, ICE, Heliocentric)

In the solar wind on Earth-Sun line at 254 Re from Earth during the CDAW 6
epoch. 
CDAW events 6A and 6B have data on solar wind plasma and magnetic
fields. 







MODELS

CDAW-6 included a model by Olson and Pfitzer of the trapped particle population
and effects of magnetic storms.







SCATHA (79-007A, STP-P78-2)

Equatorial Geocentric,T=23.6 h, Perigee=4.3 Re, Apogee=6.8 Re, Launched 30 June
1979, Measured E- and B-fields, and particle data over a wide energy range, at
4.3 to 6.8 Re.

CDAW 6A and 6B have E, B,plasma, and proton data.







TIROS-N (78-096A)

Polar Geocentric, T=102m, Perigee 846 km, Apogee=862 km, Atmosphere, weather,
and near-earth space observations. Maintained earth-pointing within 0.1deg.


CDAW 6A,6B have electron data for energies > 30 keV and >300 keV and for
total precipitating energy > 1 keV.







76-059A (76-059A)

Eqtrl Geostatnary,T=23.9 h, Perigee=5.64 Re, Apogee=5.64 Re, CDAW 6 and 7:

*************LT.  
To measure high and low energy electron, proton and alpha particle fluxes from
geostationary orbit. 

Data for CDAW 6 Events 6A and 6B, and CDAW 7 Event 7B.







77-007A (77-007A)

Eqtrl Geostatnary,T=23.9h Perigee=5.64 Re, Apogee=5.64 Re, CDAW 6 and 7:
midnight-dawn LT.  To measure high and low energy electron, proton and alpha
particle fluxes from geostationary orbit. 

Data for CDAW 6 Events 6A and 6B, and CDAW 7 Event 7A.







79-053A (79-053A)

Eqtrl Geostatnary,T=23.9h, Perigee / Apogee=5.64 Re / 5.64 Re
CDAW 6 and 7: *************LT.
To measure high and low energy electron, proton and alpha particle fluxes from 
geostationary orbit. 

Data for CDAW 7 Event 7B.





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Author and Curator: H. Kent Hills (hills@nssdca.gsfc.nasa.gov)


NASA Official: Robert E. McGuire (mcguire@nssdca.gsfc.nasa.gov)


Head, Space Physics Data Facility (Code 632), NASA/GSFC


Last Revised: 21 Nov 1996 [HKH]