The Dexes / Satellite Decay / 39189
CelestialObjectDex · Satellite Decay
O3B FM4
39189 · 2026-03-27T09:41:53Z
Fixes
158
Sensor hits
0
Observations
158
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-03-27T09:41:53.263680+00:00 |
|---|---|
| end_utc | 2026-08-07T22:20:44.262240+00:00 |
| family | celestialdex |
| norad_id | 39,189 |
| object_name | O3B FM4 |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 0.043 |
| n_snaps | 158 |
| span_days | 133.527 |
| mean_motion_first | 5.001 |
| mean_motion_last | 5.001 |
| delta_mean_motion | -0.000 |
| altitude_first_km | 8065.897 |
| altitude_last_km | 8065.902 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.000 |
| 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 | 2026-03-27T09:41:53.263680+00:00 |
| last_utc | 2026-08-07T22:20:44.262240+00:00 |
| last_fix_utc | 2026-08-07T22:20:44.262240+00:00 |
| provisional | false |
| track | [{"utc":"2026-03-27T09:41:53.263680+00:00","mean_motion":5.00115128,"altitude_km":8065.897,"eccentricity":0.00050688,"inclination_deg":0.0535},{"utc":"2026-04-05T23:58:20.577792+00:00","mean_motion":5 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/39189.json