The Dexes / Satellite Decay / 43477
CelestialObjectDex · Satellite Decay
GRACE-FO 2
43477 · 2026-04-03T14:18:22Z
Fixes
306
Observations
306
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:18:22.125888+00:00 |
|---|---|
| end_utc | 2026-08-09T19:47:43.454400+00:00 |
| family | celestialdex |
| norad_id | 43,477 |
| object_name | GRACE-FO 2 |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 88.994 |
| n_snaps | 306 |
| span_days | 128.229 |
| mean_motion_first | 15.377 |
| mean_motion_last | 15.386 |
| delta_mean_motion | 0.009 |
| altitude_first_km | 452.834 |
| altitude_last_km | 450.227 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.020 |
| 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 | 2026-04-03T14:18:22.125888+00:00 |
| last_utc | 2026-08-09T19:47:43.454400+00:00 |
| last_fix_utc | 2026-08-09T19:47:43.454400+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:18:22.125888+00:00","mean_motion":15.37726522,"altitude_km":452.834,"eccentricity":0.0012974,"inclination_deg":88.9945},{"utc":"2026-04-03T20:33:12.680064+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/43477.json