The Dexes / Satellite Decay / 56164
CelestialObjectDex · Satellite Decay
CHECKMATE 4
56164 · 2026-04-03T14:04:26Z
Fixes
263
Observations
263
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:04:26.853888+00:00 |
|---|---|
| end_utc | 2026-08-23T08:13:30.086112+00:00 |
| family | celestialdex |
| norad_id | 56,164 |
| object_name | CHECKMATE 4 |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 81.000 |
| n_snaps | 263 |
| span_days | 141.756 |
| mean_motion_first | 13.848 |
| mean_motion_last | 13.848 |
| delta_mean_motion | 0.000 |
| altitude_first_km | 946.893 |
| altitude_last_km | 946.841 |
| 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 | 2026-04-03T14:04:26.853888+00:00 |
| last_utc | 2026-08-23T08:13:30.086112+00:00 |
| last_fix_utc | 2026-08-23T08:13:30.086112+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:04:26.853888+00:00","mean_motion":13.84805011,"altitude_km":946.893,"eccentricity":0.0006221,"inclination_deg":81.001},{"utc":"2026-04-04T05:40:49.543392+00:00","mean_motion":13 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/56164.json