The Dexes / Satellite Orbital Decay / 53323
CelestialObjectDex · Satellite Orbital Decay
COSMOS 2558
53323 · 2026-04-03T12:14:29Z
Fixes
246
Observations
246
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| Start UTCstart_utc | 2026-04-03T12:14:29.611680+00:00 |
|---|---|
| End UTCend_utc | 2026-08-22T13:02:16.086336+00:00 |
| Familyfamily | celestialdex |
| NORAD IDnorad_id | 53,323 |
| Object nameobject_name | COSMOS 2558 |
| Groupgroup | active |
| Eccentricity medianeccentricity_median | 0.000 |
| Inclination deg medianinclination_deg_median | 97.225 |
| Number of snapsn_snaps | 246 |
| Span (days)span_days | 141.033 |
| Mean motion firstmean_motion_first | 15.633 |
| Mean motion lastmean_motion_last | 15.967 |
| Delta mean motiondelta_mean_motion | 0.334 |
| Altitude first (km)altitude_first_km | 378.128 |
| Altitude last (km)altitude_last_km | 283.690 |
| Decay rate rev day2decay_rate_rev_day2 | 0.002 |
| Altitude decay km dayaltitude_decay_km_day | -0.610 |
| Decay notedecay_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 UTCfirst_utc | 2026-04-03T12:14:29.611680+00:00 |
| Last UTClast_utc | 2026-08-22T13:02:16.086336+00:00 |
| Last fix UTClast_fix_utc | 2026-08-22T13:02:16.086336+00:00 |
| Provisionalprovisional | false |
| Tracktrack | [{"utc":"2026-04-03T12:14:29.611680+00:00","mean_motion":15.6330163,"altitude_km":378.128,"eccentricity":0.000152,"inclination_deg":97.2246},{"utc":"2026-04-03T19:55:21.167040+00:00","mean_motion":15. |
| Total sensor hitstotal_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/53323.json