The Dexes / Satellite Decay / 55861
CelestialObjectDex · Satellite Decay
SHIYAN-19 (SY-19)
55861 · 2026-04-03T14:33:00Z
Fixes
314
Observations
314
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:33:00.410400+00:00 |
|---|---|
| end_utc | 2026-08-09T21:13:33.443040+00:00 |
| family | celestialdex |
| norad_id | 55,861 |
| object_name | SHIYAN-19 (SY-19) |
| group | active |
| eccentricity_median | 0.001 |
| inclination_deg_median | 97.394 |
| n_snaps | 314 |
| span_days | 128.278 |
| mean_motion_first | 15.539 |
| mean_motion_last | 15.586 |
| delta_mean_motion | 0.047 |
| altitude_first_km | 405.294 |
| altitude_last_km | 391.794 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.106 |
| 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 | 2026-04-03T14:33:00.410400+00:00 |
| last_utc | 2026-08-09T21:13:33.443040+00:00 |
| last_fix_utc | 2026-08-09T21:13:33.443040+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:33:00.410400+00:00","mean_motion":15.53920118,"altitude_km":405.294,"eccentricity":0.00041578,"inclination_deg":97.4024},{"utc":"2026-04-03T20:43:55.488288+00:00","mean_motion": |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/55861.json