The Dexes / Satellite Decay / 56169
CelestialObjectDex · Satellite Decay
CHECKMATE 3
56169 · 2026-04-03T14:53:11Z
Fixes
239
Observations
239
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:53:11.026464+00:00 |
|---|---|
| end_utc | 2026-08-09T20:01:56.688096+00:00 |
| family | celestialdex |
| norad_id | 56,169 |
| object_name | CHECKMATE 3 |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 81.001 |
| n_snaps | 239 |
| span_days | 128.214 |
| mean_motion_first | 13.851 |
| mean_motion_last | 13.852 |
| delta_mean_motion | 0.000 |
| altitude_first_km | 945.707 |
| altitude_last_km | 945.664 |
| 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 | 2026-04-03T14:53:11.026464+00:00 |
| last_utc | 2026-08-09T20:01:56.688096+00:00 |
| last_fix_utc | 2026-08-09T20:01:56.688096+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:53:11.026464+00:00","mean_motion":13.85141551,"altitude_km":945.707,"eccentricity":0.00078592,"inclination_deg":81.0022},{"utc":"2026-04-04T04:45:19.067904+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/56169.json