The Dexes / Satellite Decay / 44476
CelestialObjectDex · Satellite Decay
INTELSAT 39 (IS-39)
44476 · 2026-04-03T14:50:03Z
Fixes
226
Observations
226
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:50:03.199776+00:00 |
|---|---|
| end_utc | 2026-08-09T18:59:46.590144+00:00 |
| family | celestialdex |
| norad_id | 44,476 |
| object_name | INTELSAT 39 (IS-39) |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 0.018 |
| n_snaps | 226 |
| span_days | 128.173 |
| mean_motion_first | 1.003 |
| mean_motion_last | 1.003 |
| delta_mean_motion | 0.000 |
| altitude_first_km | 35787.086 |
| altitude_last_km | 35784.568 |
| decay_rate_rev_day2 | -0.000 |
| altitude_decay_km_day | 0.004 |
| 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 | 2026-04-03T14:50:03.199776+00:00 |
| last_utc | 2026-08-09T18:59:46.590144+00:00 |
| last_fix_utc | 2026-08-09T18:59:46.590144+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:50:03.199776+00:00","mean_motion":1.00270035,"altitude_km":35787.086,"eccentricity":0.00003971,"inclination_deg":0.0195},{"utc":"2026-04-03T20:45:16.776000+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/44476.json