| Mass | 77.1 kg (instrument) 9.0 kg (electronics) 2.6 kg (harness) |
| Power | 35 W (mean) 77.3 W (max) |
| Dimensions | 2.04 m x 0.72 m x 0.43 m (instrument) 0.36 m x 0.28 m x 0.20 m (electronics 1) 0.36 m x 0.23 m x 0.08 m (electronics 2) |
| Telemetry | 25 kbps |
| Pointing stability | To be supplied |
| Temperature satbility | 10° C/hour |
| Clear field of view | ± 45° (instrument) 180° (to space) for detector radiators |
Information provided by Dr. O.C. St. Cyr, NASA-GSFC Laboratory for Astronomy and Solar Physics/CPI, based on information in the SOHO "Experiment Interface Document-B" (EID-B).