The Dexes / Satellite Decay / 49399
CelestialObjectDex · Satellite Decay
Z-SAT
49399 · 2026-04-03T15:26:12Z
Fixes
309
Observations
309
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T15:26:12.812640+00:00 |
|---|---|
| end_utc | 2026-08-09T20:08:48.645888+00:00 |
| family | celestialdex |
| norad_id | 49,399 |
| object_name | Z-SAT |
| group | active |
| eccentricity_median | 0.002 |
| inclination_deg_median | 97.333 |
| n_snaps | 309 |
| span_days | 128.196 |
| mean_motion_first | 15.177 |
| mean_motion_last | 15.186 |
| delta_mean_motion | 0.010 |
| altitude_first_km | 512.828 |
| altitude_last_km | 509.952 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.023 |
| 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 | 2026-04-03T15:26:12.812640+00:00 |
| last_utc | 2026-08-09T20:08:48.645888+00:00 |
| last_fix_utc | 2026-08-09T20:08:48.645888+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T15:26:12.812640+00:00","mean_motion":15.17688528,"altitude_km":512.828,"eccentricity":0.00177924,"inclination_deg":97.3405},{"utc":"2026-04-03T20:11:02.429376+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/49399.json