LOBACHEVSKY (RS83S)

NORAD 67284· COSPAR 2025-313AN· Active satellite· Other / Unclassified· SSO

Launch

Launched on Dec 28, 2025 from Cosmodrome Site 1S, Russia aboard a Soyuz 2.1b Fregat-M.

Soyuz 2.1b/Fregat-M | AIST-2T 01 & 02 →

Live · TLE epoch 2026-10-23 18:31 UTC

Orbit class

SSO — Sun-Synchronous (LEO at 96–102° inclination)

Operator

—

Country

TBD

Manufacturer

—

Launched

Dec 28, 2025

Mass

—

Apogee

504 km

Perigee

492 km

Inclination

97.38°

Period

1.57 h

Altitude history

Apogee and perigee for LOBACHEVSKY (RS83S) across 59 days of archived orbital elements (60 element sets, one per day).

Trend

Decaying

Change

-1.4 km

Rate

-0.02 km/day

Now

492 × 504 km

Apogee Perigee

Derived from our own archive of CelesTrak orbital elements, sampled every 3 hours. Short windows show drag and station-keeping; they are not a reentry prediction.

Launched with

49 other catalogued objects still in orbit from launch 2025-313 (Soyuz 2.1b/Fregat-M | AIST-2T 01 & 02).

2025-313A · 67248
2025-313AA · 67272
2025-313AB · 67273
2025-313AC · 67274
2025-313AD · 67275
2025-313AE · 67276
2025-313AF · 67277
2025-313AG · 67278
GALAPAGOS-UTE-SWSU · 67279
2025-313AJ · 67280
2025-313AK · 67281
2025-313AL · 67282
HORS 5 · 67283
NASBSAT-2 · 67285
MULE 4T · 67286
LUCA (RS90S) · 67287
2025-313AS · 67288
NASBSAT-1 · 67289
SAKHACUBE-CHOLBON (RS1*) · 67290
QMR-KWT-2 (RS95S) · 67291
SITRO-AIS-64 · 67292
SCORPION (RS89S) · 67293
SITRO-AIS-63 · 67294
ZORKIY-2M-5 · 67295

…and 25 more from this launch.

Sources & further reading

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