The Dexes / Satellite Decay / 40042
CelestialObjectDex · Satellite Decay
POLYITAN-1
40042 · 2026-04-03T14:10:15Z
Fixes
207
Observations
207
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:10:15.469248+00:00 |
|---|---|
| end_utc | 2026-08-23T08:28:59.625696+00:00 |
| family | celestialdex |
| norad_id | 40,042 |
| object_name | POLYITAN-1 |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 98.095 |
| n_snaps | 207 |
| span_days | 141.763 |
| mean_motion_first | 15.307 |
| mean_motion_last | 15.354 |
| delta_mean_motion | 0.047 |
| altitude_first_km | 473.703 |
| altitude_last_km | 459.692 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.101 |
| 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 | 2026-04-03T14:10:15.469248+00:00 |
| last_utc | 2026-08-23T08:28:59.625696+00:00 |
| last_fix_utc | 2026-08-23T08:28:59.625696+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:10:15.469248+00:00","mean_motion":15.30706629,"altitude_km":473.703,"eccentricity":0.00087996,"inclination_deg":98.1014},{"utc":"2026-04-04T12:08:06.152064+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/40042.json