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IONOSFERA-M 04, 64877

Orbit data source: Space-Track

IONOSFERA-M 04, 64877 is a payload satellite owned by VNIIEM (CIS) in SSO that was launched on Fri, 25 Jul 2025 UTC via a SOYUZ-2-1B launch vehicle from the Vostochny Cosmodrome (VOSTO). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

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Iframe URL

https://www.satcat.com/sats-embedded/64877?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

64877, 2025-155B

Orbit

SSO

Country

CIS

Related business

Federal Space Agency of Russia (Roscosmos) (RU)

Manufacturer

VNIIEM

Mission

Operational Civil Science

Bus & Motor

IONOSFERA-M, Unknown motor

Mass

430 kg wet, 430 kg dry

Launch date (UTC)

2025-07-25 (6 months ago)

Launch vehicle

SOYUZ-2-1B

Launch site

Vostochny Cosmodrome (VOSTO)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 1 Ant, 14.5 m

Radar Cross Section

2.359 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 6 hours ago

TLE from 6 hours ago

0 IONOSFERA-M 04
1 64877U 25155B   26025.60144021  .00000158  00000-0  91804-4 0  9993
2 64877  98.5845 351.1592 0000427  93.4719 266.6507 14.21455882 26140

Epoch: 2026-01-25T14:26Z

TLE epoch observation values (Epoch: 2026-01-25T14:26:04.434Z)

Latitude

-0.00005°

Longitude

9.73153°

Altitude

823.372 km

Speed

7.441 km/s

True Right ascension

23h 24m 38s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

21:58:06

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

817.891 km

Perigee altitude

817.277 km

Semi-major axis

7,195.721 km

Eccentricity

0.00004

Inclination

98.5845°

RAAN

351.1592°

Arg. of periapsis

93.4719°

True anomaly

266.64582°

Mean anomaly

266.6507°

Eccentric anomaly

266.64826°

Mean motion

3.55575 °/min

Orbital period

101.24 mins

BSTAR

0.000091804

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Other satellites on launch #155 in the year 2025 (2025-07-25 UTC)

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IONOSFERA-M 04 Visibility forecast

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Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
10 mins	2026-01-25 21:17:55.946Z	155.434° SSE	2026-01-25 21:22:55.946Z	84.884° E	42.91°	2026-01-25 21:27:55.946Z	352.461° N
7 mins	2026-01-26 09:37:55.946Z	49.678° ENE	2026-01-26 09:40:55.946Z	98.2° ESE	25.854°	2026-01-26 09:44:55.946Z	152.393° SSE
7 mins	2026-01-26 11:17:55.946Z	342.893° N	2026-01-26 11:20:55.946Z	290.901° WNW	29.483°	2026-01-26 11:24:55.946Z	232.304° WSW

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out IONOSFERA-M 04, 64877 on other resources

View IONOSFERA-M 04, 64877 on NASA - NSSDCA Website

View IONOSFERA-M 04, 64877 on Heavens-Above

View IONOSFERA-M 04, 64877 on Keep Track

View IONOSFERA-M 04, 64877 on Celestrak

View IONOSFERA-M 04, 64877 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

IONOSFERA-M 04, 64877

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 6 hours ago

TLE from 6 hours ago

TLE epoch observation values (Epoch: 2026-01-25T14:26:04.434Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #155 in the year 2025 (2025-07-25 UTC)

IONOSFERA-M 04 Visibility forecast

Co-orbital & Co-planar RSOs

Check out IONOSFERA-M 04, 64877 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 6 hours ago