The Dexes / Satellite Decay / 42991
CelestialObjectDex · Satellite Decay
SKYSAT-C7
42991 · 2026-04-03T14:34:48Z
Fixes
215
Observations
215
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:34:48.775008+00:00 |
|---|---|
| end_utc | 2026-08-09T19:45:19.574208+00:00 |
| family | celestialdex |
| norad_id | 42,991 |
| object_name | SKYSAT-C7 |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 97.450 |
| n_snaps | 215 |
| span_days | 128.216 |
| mean_motion_first | 15.354 |
| mean_motion_last | 15.379 |
| delta_mean_motion | 0.025 |
| altitude_first_km | 459.690 |
| altitude_last_km | 452.381 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.058 |
| decay_note | mean_motion slope (rev/day^2) and altitude slope (km/day) from least-squares fit of measured GP elements; altitude from Kepler a=(GM/n^2)^(1/3) - R_earth |
| first_utc | 2026-04-03T14:34:48.775008+00:00 |
| last_utc | 2026-08-09T19:45:19.574208+00:00 |
| last_fix_utc | 2026-08-09T19:45:19.574208+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:34:48.775008+00:00","mean_motion":15.35414383,"altitude_km":459.69,"eccentricity":0.00063039,"inclination_deg":97.4415},{"utc":"2026-04-03T20:50:11.812128+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/42991.json