The Dexes / Satellite Decay / 58661
CelestialObjectDex · Satellite Decay
TIANMU-1 20
58661 · 2026-04-03T14:40:19Z
Fixes
309
Observations
309
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:40:19.867584+00:00 |
|---|---|
| end_utc | 2026-08-09T20:15:12.456288+00:00 |
| family | celestialdex |
| norad_id | 58,661 |
| object_name | TIANMU-1 20 |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 97.444 |
| n_snaps | 309 |
| span_days | 128.233 |
| mean_motion_first | 15.316 |
| mean_motion_last | 15.335 |
| delta_mean_motion | 0.020 |
| altitude_first_km | 471.120 |
| altitude_last_km | 465.309 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.045 |
| 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 | 2026-04-03T14:40:19.867584+00:00 |
| last_utc | 2026-08-09T20:15:12.456288+00:00 |
| last_fix_utc | 2026-08-09T20:15:12.456288+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:40:19.867584+00:00","mean_motion":15.31572516,"altitude_km":471.12,"eccentricity":0.00064429,"inclination_deg":97.4357},{"utc":"2026-04-03T20:56:39.419808+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/58661.json