BackForward Satellite: Solar-A (Yohkoh) 

Satellite details
Acronym Solar-A (Yohkoh)
Full name Solar-A (Yohkoh)
Satellite Description
  • 1st flight unit of the Solar programme.  "Yohkoh" = "Sunlight".
  • Main mission: solar processes observation.
Mass at launch 390 kg Dry mass
Power 450 W
Data access link no link provided
Data access information
  • Data available from JAXA.
Orbit Drifting orbit Altitude 645 km
Inclination 31.3 °


Space agency JAXA
Status Inactive
Details on Status
(as available)
Launch 30 Aug 1991 EOL 15 Dec 2001
Last update: 2015-07-29
Associated satellite programme and related satellites

Note: red tag: no longer operational , green tag: operational , blue tag : future

Satellite Payload

All known Instruments flying on Solar-A (Yohkoh)

Acronym Full name
HXT Hard X-ray Telescope
SXT Soft X-ray Telescope
BCS Bragg Crystal Spectrometer
WBS Wide-band Spectrometer
Show instrument status and calibration