The Dexes / Satellite Decay / 69021
CelestialObjectDex · Satellite Decay
HELIOS
69021 · 2026-05-09T12:33:51Z
Fixes
150
Observations
150
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-05-09T12:33:51.264864+00:00 |
|---|---|
| end_utc | 2026-08-09T16:22:25.622400+00:00 |
| family | celestialdex |
| norad_id | 69,021 |
| object_name | HELIOS |
| group | active |
| eccentricity_median | 0.000 |
| inclination_deg_median | 97.402 |
| n_snaps | 150 |
| span_days | 92.159 |
| mean_motion_first | 15.195 |
| mean_motion_last | 15.207 |
| delta_mean_motion | 0.011 |
| altitude_first_km | 507.341 |
| altitude_last_km | 503.877 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.039 |
| 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 | 2026-05-09T12:33:51.264864+00:00 |
| last_utc | 2026-08-09T16:22:25.622400+00:00 |
| last_fix_utc | 2026-08-09T16:22:25.622400+00:00 |
| provisional | false |
| track | [{"utc":"2026-05-09T12:33:51.264864+00:00","mean_motion":15.19503256,"altitude_km":507.341,"eccentricity":0.0006546,"inclination_deg":97.406},{"utc":"2026-05-09T14:08:40.961472+00:00","mean_motion":15 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/69021.json