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ISS (NAUKA), 49044

Orbit data source: Space-Track

ISS (NAUKA), 49044 is a payload satellite owned by RKKE (CIS) in LEO that was launched on Wed, 21 Jul 2021 UTC via a PROTON-M launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). 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 src="https://www.satcat.com/sats-embedded/49044?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/49044?theme=dark&initialShowStats=false

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Identifier

49044, 2021-066A

Orbit

LEO

Country

CIS

Related business

Energia (RU)

Manufacturer

KHRO/RKKE

Mission

Operational Civil Spaceship

Bus & Motor

ALMAZ, Unknown motor

Mass

20,257 kg wet, 19,200 kg dry

Launch date (UTC)

2021-07-21 (5 years ago)

Launch vehicle

PROTON-M

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Step Cyl + 2 Pan, 11.9 m

Radar Cross Section

68.445 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 2 days ago

TLE from 2 days ago

0 ISS (NAUKA)
1 49044U 21066A   26171.41461525  .00008813  00000-0  16600-3 0  9997
2 49044  51.6327 284.1189 0004557 208.5194 151.5545 15.49333088571980

Epoch: 2026-06-20T09:57Z

TLE epoch observation values (Epoch: 2026-06-20T09:57:02.757Z)

Latitude

-0.00009°

Longitude

-133.77224°

Altitude

422.14 km

Speed

7.658 km/s

True Right ascension

18h 56m 28s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

21:34:50

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

422.282 km

Perigee altitude

416.087 km

Semi-major axis

6,797.322 km

Eccentricity

0.00046

Inclination

51.6327°

RAAN

284.1189°

Arg. of periapsis

208.5194°

True anomaly

151.57936°

Mean anomaly

151.5545°

Eccentric anomaly

151.56693°

Mean motion

3.8729 °/min

Orbital period

92.95 mins

BSTAR

0.000166

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Other satellites on launch #66 in the year 2021 (2021-07-21 UTC)

SL-25 R/B, 49045 (Decayed)

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ISS (NAUKA) 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.
5 mins	2026-06-22 16:38:48.868Z	294.955° NW	2026-06-22 16:40:48.868Z	223.048° SW	40.569°	2026-06-22 16:43:48.868Z	141.777° SSE
4 mins	2026-06-23 09:21:48.868Z	211.365° SW	2026-06-23 09:22:48.868Z	175.667° S	40.97°	2026-06-23 09:25:48.868Z	59.469° ENE

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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 ISS (NAUKA), 49044 on other resources

View ISS (NAUKA), 49044 on NASA - NSSDCA Website

View ISS (NAUKA), 49044 on Heavens-Above

View ISS (NAUKA), 49044 on Keep Track

View ISS (NAUKA), 49044 on Celestrak

View ISS (NAUKA), 49044 on Gunter's Space Page

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

ISS (NAUKA), 49044

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-06-20T09:57:02.757Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #66 in the year 2021 (2021-07-21 UTC)

ISS (NAUKA) Visibility forecast

Co-orbital & Co-planar RSOs

Check out ISS (NAUKA), 49044 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago