The Dexes / Satellite Decay / 38339
CelestialObjectDex · Satellite Decay
SDS-4
38339 · 2026-04-03T14:22:31Z
Fixes
310
Observations
310
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:22:31.302624+00:00 |
|---|---|
| end_utc | 2026-08-09T21:04:05.681856+00:00 |
| family | celestialdex |
| norad_id | 38,339 |
| object_name | SDS-4 |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 98.136 |
| n_snaps | 310 |
| span_days | 128.279 |
| mean_motion_first | 14.757 |
| mean_motion_last | 14.759 |
| delta_mean_motion | 0.002 |
| altitude_first_km | 642.954 |
| altitude_last_km | 642.301 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.005 |
| 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 | 2026-04-03T14:22:31.302624+00:00 |
| last_utc | 2026-08-09T21:04:05.681856+00:00 |
| last_fix_utc | 2026-08-09T21:04:05.681856+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:22:31.302624+00:00","mean_motion":14.75692554,"altitude_km":642.954,"eccentricity":0.00070824,"inclination_deg":98.1334},{"utc":"2026-04-03T19:15:26.559072+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/38339.json