The Dexes / Satellite Decay / 56728
CelestialObjectDex · Satellite Decay
IRIDIUM 174
56728 · 2026-04-03T07:41:20Z
Fixes
227
Observations
227
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T07:41:20.272128+00:00 |
|---|---|
| end_utc | 2026-08-09T20:20:06.789120+00:00 |
| family | celestialdex |
| norad_id | 56,728 |
| object_name | IRIDIUM 174 |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 86.612 |
| n_snaps | 227 |
| span_days | 128.527 |
| mean_motion_first | 14.722 |
| mean_motion_last | 14.722 |
| delta_mean_motion | 0.000 |
| altitude_first_km | 653.935 |
| altitude_last_km | 653.895 |
| 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 | 2026-04-03T07:41:20.272128+00:00 |
| last_utc | 2026-08-09T20:20:06.789120+00:00 |
| last_fix_utc | 2026-08-09T20:20:06.789120+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T07:41:20.272128+00:00","mean_motion":14.72237339,"altitude_km":653.935,"eccentricity":0.00029577,"inclination_deg":86.6147},{"utc":"2026-04-03T20:44:19.694112+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/56728.json