The Dexes / Satellite Decay / 31118
CelestialObjectDex · Satellite Decay
SAUDISAT 3
31118 · 2026-04-03T14:11:20Z
Fixes
251
Observations
251
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:11:20.304672+00:00 |
|---|---|
| end_utc | 2026-08-23T20:26:54.781152+00:00 |
| family | celestialdex |
| norad_id | 31,118 |
| object_name | SAUDISAT 3 |
| group | active |
| eccentricity_median | 0.002 |
| inclination_deg_median | 98.145 |
| n_snaps | 251 |
| span_days | 142.261 |
| mean_motion_first | 14.714 |
| mean_motion_last | 14.715 |
| delta_mean_motion | 0.001 |
| altitude_first_km | 656.673 |
| altitude_last_km | 656.413 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.002 |
| 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 | 2026-04-03T14:11:20.304672+00:00 |
| last_utc | 2026-08-23T20:26:54.781152+00:00 |
| last_fix_utc | 2026-08-23T20:26:54.781152+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:11:20.304672+00:00","mean_motion":14.71377746,"altitude_km":656.673,"eccentricity":0.0015964,"inclination_deg":98.1389},{"utc":"2026-04-03T20:43:02.588160+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/31118.json