CDAW 8 S/C Brief Help Descriptions

This page is still under construction. Revised 9/14/95.

 

DE 1 (1981-070A)

Dynamics Explorer 1. 


Polar Geocentric, Period=6.85 h. Perigee=568 km, Apogee=3.65 Re. Launched
8/03/81. With DE-2, measures interactive processes coupling hot plasmas in the
magnetosphere and  cooler ones in the ionosphere and plasmasphere.


CDAW-8 has auroral image, magnetic field and ion composition data. 




 

DE-2 (81-070B)

Dynamics Explorer 2


Polar Geocentric, Period=98 min. Perigee=309 km, Apogee=1012 km. Launched
8/03/81, Re-entered 12/19/83. With DE-1 measures neutral composition,
temperature, and wind, and plasma flow at feet of field lines. 


CDAW-8 has E-field data for evnts A & D, and B-field data for event D.


 

GOES 2 (77-048A)

Geostationary Operational Environmental Satellite 2


Equatorial Geostationary, Period=23.9 h. Perigee=5.53 Re, Apogee=5.69 Re.
Launched 16Jun77. To measure the geomagnetic field from a geosynchronous orbit.



During the CDAW-8 events, the spacecraft was located at 107.9 degrees W.


CDAW-8 has magnetometer data for events A to C.       




  



GOES 5 (1981-049A)

Geostationary Operational Environmental Satellite 5


Equatorial Geostationary, Period=23.9 h. Perigee=5.60 Re, Apogee=5.61 Re.
Launched 5/22/81. To measure the geomagnetic field from a geosynchronous orbit.


During the CDAW-8 events, the spacecraft was located at 75.5 degrees W.



CDAW-8 has magnetometer data for events B and C.      




 

GMS 2 (81-076A)

Geostationary Meteorological Satellite 2


Equatorial Geostationary, Period=23.9 h. Perigee=5.61 Re, Apogee=5.61 Re.
Launched  10Aug81, turned off in September, 1984. To monitor high energy
electron, proton and alpha particle fluxes from a geostationary orbit. The
satellite was spin-stabilized with a despun earth-pointing antenna.  The
satellite was positioned near 140 degrees E and was designed to operate for 5
years.


CDAW-8 has 2-min electron and proton count data for events A-F.   




  



IMP-8 (1973-078A) (IMP-J)

Interplanetary Monitoring Platform 8


Geocentric, Period=12 d. Perigee=22.1 Re, Apogee=45.3 Re. Launched 10/26/73,
currently  operational. To measure energetic particles, plasma and magnetic
field parameters at 30-40 Re for comparison with other s/c.


CDAW-8 has ion and electron and magnetic field data for events A-F, and plasma
data for events E and F.          




  



ISEE 1 (1977-102A) ("Mother")

International Sun-Earth Explorer 1


Geocentric, Period=57.4 h. Perigee=281 km, Apogee=21.7 Re. Launched 10/22/77,
Re-entered 9/26/87. To measure electric and magnetic fields, low energy particle
fluxes in the solar wind, bow shock,  and outer magnetosphere with ISEE 2.


CDAW-8 has much E- and B-field, and electron and proton data for various events.





  



ISEE 2 (1977-102B) ("Daughter")

International Sun-Earth Explorer 2


Geocentric, Period=57.6 h. Perigee=280 km, Apogee=21.7 Re. Launched 10/22/77,
Re-entered 9/26/87. To measure electric and magnetic flds, and low energy
particle fluxes in the solar wind, ow shock, and outer magnetosphere with ISEE
1.


CDAW-8 has E- and B-field, and electron and proton data for events A-F.




 

ISEE 3 (78-079A) (ICE)

 International Sun_Earth Explorer 3


International Cometary Explorer


Magnetotail, Period=. Perigee=  , Apogee=. Launched 12 Aug78, currently
operational.
To measure plasma, particle, and magnetic field parameters in the magnetotail
between Earth and the Lagrangian L2 point. 


CDAW8 has B-field, electron, proton, and ion data for events A-F, and ion data
for events G and H.




 

MODELS

MODELS


CDAW-8 included terrestrial magnetic field models for comparison with data.




  



SCATHA (1979-007A)  (STP P78-2)

Spacecraft Charging at High Altitudes


Space Test Program P78-2


Equatorial Geocentric, Period=23.6 h. Perigee=4.3 Re, Apogee=6.8 Re. Launched
6/30/79. To measure magnetic fields and particles data over a wide energy range,

from 4.3 to 6.8 Re.


CDAW-8 has magnetic field, plasma and proton data for events A-D and F, and H+,
O+ and electron data for A-C.




 

77-007A (77-007A)

Equatorial Geostationary, Period=23.9 h. Perigee=5.64 Re, Apogee=5.64 Re.
Launched 06Feb77. 
To measure high and low energy electron, proton and alpha particle fluxes from a
geostationary orbit. 


During the CDAW-8 events, the spacecraft was located at 68.0 degrees E.


Data is supplied for CDAW-8 events A-D, and F-H.        




  



82-019A (1982-019A)

Equatorial Geostationary, Period=23.9 h. Perigee=5.61 Re, Apogee=5.61 Re.
Launched 3/06/82. To measure high and low energy electron, proton and alpha
particle fluxes from a geostationary orbit. 


During the CDAW-8 events, the spacecraft was located at 68.4 degrees W.


Data is supplied for CDAW-8 events A-H. 




 

81-025A (81-025A)

Equatorial Geostationary, Period=23.7 h. Perigee=5.56 Re, Apogee=5.57 Re.
Launched 16Mar81. To measure high and low energy electron, proton and alpha
particle fluxes from a geostationary orbit. 


During the CDAW-8 events, the spacecraft was located at 134.0 degrees W.


Data is supplied for CDAW-8 events A-H.                




 

GROUND BASED OBSERVATIONS

There are many types of ground based data. Most of CDAW-8's ground based data
are related to geomagnetic field values, variations, and indexes. 


CDAW-8 has several ground based data sets for each event.






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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]