The Dexes / Satellite Decay / 54214
CelestialObjectDex · Satellite Decay
SHIYAN-20C (SY-20C)
54214 · 2026-04-03T14:43:52Z
Fixes
307
Observations
307
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:43:52.876416+00:00 |
|---|---|
| end_utc | 2026-08-09T21:17:30.230016+00:00 |
| family | celestialdex |
| norad_id | 54,214 |
| object_name | SHIYAN-20C (SY-20C) |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 59.996 |
| n_snaps | 307 |
| span_days | 128.273 |
| mean_motion_first | 14.295 |
| mean_motion_last | 14.296 |
| delta_mean_motion | 0.001 |
| altitude_first_km | 793.401 |
| altitude_last_km | 793.181 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.002 |
| 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 | 2026-04-03T14:43:52.876416+00:00 |
| last_utc | 2026-08-09T21:17:30.230016+00:00 |
| last_fix_utc | 2026-08-09T21:17:30.230016+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:43:52.876416+00:00","mean_motion":14.29500546,"altitude_km":793.401,"eccentricity":0.00102001,"inclination_deg":59.996},{"utc":"2026-04-03T19:46:02.184096+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/54214.json