Showing default

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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/64877?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

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

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

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 (9 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   26121.19052679  .00000048  00000-0  41547-4 0  9998
2 64877  98.5995  84.2058 0001259  53.1759 306.9533 14.21480069 39728

Epoch: 2026-05-01T04:34Z

TLE epoch observation values (Epoch: 2026-05-01T04:34:21.514Z)

Latitude

-0.00013°

Longitude

156.48984°

Altitude

822.727 km

Speed

7.442 km/s

True Right ascension

05h 36m 49s

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

18:12:07

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

818.409 km

Perigee altitude

816.597 km

Semi-major axis

7,195.64 km

Eccentricity

0.00013

Inclination

98.5995°

RAAN

84.2058°

Arg. of periapsis

53.1759°

True anomaly

306.94177°

Mean anomaly

306.9533°

Eccentric anomaly

306.94754°

Mean motion

3.55581 °/min

Orbital period

101.24 mins

BSTAR

0.000041547

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

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

Did you know?

You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

Click here to try in Sandbox

IONOSFERA-M 04 Visibility forecast

Loading observer location...
Set Observer location

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.
5 mins	2026-05-01 11:55:05.976Z	325.87° NNW	2026-05-01 11:57:05.976Z	301.712° NW	14.918°	2026-05-01 12:00:05.976Z	266.229° W
9 mins	2026-05-01 21:35:05.976Z	171.672° S	2026-05-01 21:39:05.976Z	239.548° WSW	44.281°	2026-05-01 21:44:05.976Z	343.354° N
9 mins	2026-05-02 09:53:05.976Z	31.441° NE	2026-05-02 09:57:05.976Z	99.502° ESE	35.297°	2026-05-02 10:02:05.976Z	171.372° S

Items per page:

1–3 of 3 items

of 1 page

Co-orbital & Co-planar RSOs

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

Please sign-in to view Co-orbital & Co-planar RSOs.

Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in descending order

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

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in descending order

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: 2026-05-01T04:34:21.514Z)

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