The Dexes / Satellite Decay / 27954
CelestialObjectDex · Satellite Decay
GALAXY 13 (HORIZONS-1)
27954 · 2026-04-03T15:33:28Z
Fixes
245
Observations
245
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T15:33:28.785312+00:00 |
|---|---|
| end_utc | 2026-08-09T18:17:48.996096+00:00 |
| family | celestialdex |
| norad_id | 27,954 |
| object_name | GALAXY 13 (HORIZONS-1) |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 1.392 |
| n_snaps | 245 |
| span_days | 128.114 |
| mean_motion_first | 1.003 |
| mean_motion_last | 1.003 |
| delta_mean_motion | -0.000 |
| altitude_first_km | 35785.746 |
| altitude_last_km | 35786.875 |
| decay_rate_rev_day2 | -0.000 |
| altitude_decay_km_day | 0.001 |
| 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 | 2026-04-03T15:33:28.785312+00:00 |
| last_utc | 2026-08-09T18:17:48.996096+00:00 |
| last_fix_utc | 2026-08-09T18:17:48.996096+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T15:33:28.785312+00:00","mean_motion":1.00274815,"altitude_km":35785.746,"eccentricity":0.00021786,"inclination_deg":1.226},{"utc":"2026-04-03T17:14:55.872672+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/27954.json