The Dexes / Satellite Decay / 39199
CelestialObjectDex · Satellite Decay
IRNSS-1A
39199 · 2026-04-02T23:54:38Z
Fixes
187
Observations
187
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-02T23:54:38.734560+00:00 |
|---|---|
| end_utc | 2026-08-07T03:25:38.671680+00:00 |
| family | celestialdex |
| norad_id | 39,199 |
| object_name | IRNSS-1A |
| group | active |
| eccentricity_median | 0.002 |
| inclination_deg_median | 35.705 |
| n_snaps | 187 |
| span_days | 126.147 |
| mean_motion_first | 1.003 |
| mean_motion_last | 1.003 |
| delta_mean_motion | -0.000 |
| altitude_first_km | 35784.581 |
| altitude_last_km | 35785.287 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.007 |
| 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 | 2026-04-02T23:54:38.734560+00:00 |
| last_utc | 2026-08-07T03:25:38.671680+00:00 |
| last_fix_utc | 2026-08-07T03:25:38.671680+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-02T23:54:38.734560+00:00","mean_motion":1.00278968,"altitude_km":35784.581,"eccentricity":0.00167253,"inclination_deg":35.5564},{"utc":"2026-04-07T11:13:07.794912+00:00","mean_motion" |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/39199.json