The Dexes / Satellite Decay / 30797
CelestialObjectDex · Satellite Decay
THEMIS D
30797 · 2026-04-03T11:35:46Z
Fixes
287
Observations
287
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T11:35:46.931712+00:00 |
|---|---|
| end_utc | 2026-08-21T21:20:34.000224+00:00 |
| family | celestialdex |
| norad_id | 30,797 |
| object_name | THEMIS D |
| group | active |
| eccentricity_median | 0.833 |
| inclination_deg_median | 7.668 |
| n_snaps | 287 |
| span_days | 140.406 |
| mean_motion_first | 0.878 |
| mean_motion_last | 0.878 |
| delta_mean_motion | 0.000 |
| altitude_first_km | 39678.317 |
| altitude_last_km | 39674.927 |
| decay_rate_rev_day2 | -0.000 |
| altitude_decay_km_day | 0.442 |
| 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 | 2026-04-03T11:35:46.931712+00:00 |
| last_utc | 2026-08-21T21:20:34.000224+00:00 |
| last_fix_utc | 2026-08-21T21:20:34.000224+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T11:35:46.931712+00:00","mean_motion":0.87834882,"altitude_km":39678.317,"eccentricity":0.83460834,"inclination_deg":6.9654},{"utc":"2026-04-04T13:57:31.989600+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/30797.json