The Dexes / Satellite Decay / 68571
CelestialObjectDex · Satellite Decay
MERIDIAN-M 21L
68571 · 2026-04-09T08:42:21Z
Fixes
101
Observations
101
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-09T08:42:21.904128+00:00 |
|---|---|
| end_utc | 2026-08-08T01:16:28.883712+00:00 |
| family | celestialdex |
| norad_id | 68,571 |
| object_name | MERIDIAN-M 21L |
| group | active |
| eccentricity_median | 0.718 |
| inclination_deg_median | 62.804 |
| n_snaps | 101 |
| span_days | 120.690 |
| mean_motion_first | 1.986 |
| mean_motion_last | 2.006 |
| delta_mean_motion | 0.020 |
| altitude_first_km | 20356.781 |
| altitude_last_km | 20177.966 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.670 |
| 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 | 2026-04-09T08:42:21.904128+00:00 |
| last_utc | 2026-08-08T01:16:28.883712+00:00 |
| last_fix_utc | 2026-08-08T01:16:28.883712+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-09T08:42:21.904128+00:00","mean_motion":1.98602395,"altitude_km":20356.781,"eccentricity":0.72379493,"inclination_deg":62.7825},{"utc":"2026-04-10T08:52:29.959680+00:00","mean_motion" |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/68571.json