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SINOD-D 3, 40977

Orbit data source: Space-Track

SINOD-D 3, 40977 is a payload satellite owned by SRI (US) in LEO that was launched on Thu, 08 Oct 2015 UTC via an ATLAS V 401 launch vehicle from the Air Force Western Test Range (AFWTR). 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/40977?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/40977?theme=dark&initialShowStats=false

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Identifier

40977, 2015-058P

Orbit

LEO

Country

Related business

SRI International (US)

Manufacturer

SRI

Mission

Operational Commercial Technology

Bus & Motor

CUBESAT 2U, Unknown motor

Mass

2 kg wet, 2 kg dry

Launch date (UTC)

2015-10-08 (10 years ago)

Launch vehicle

ATLAS V 401

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box, 0.1 m

Radar Cross Section

0.025 m², Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 21 hours ago

TLE from 21 hours ago

0 SINOD-D 3
1 40977U 15058P   25355.63176558  .00004254  00000-0  37141-3 0  9991
2 40977  64.7736 109.6133 0124285 129.1968 232.0262 14.92387110 88248

Epoch: 2025-12-21T15:09Z

TLE epoch observation values (Epoch: 2025-12-21T15:09:44.546Z)

Latitude

0.00002°

Longitude

151.73626°

Altitude

646.462 km

Speed

7.506 km/s

True Right ascension

07h 18m 27s

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

10:49:31

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

675.653 km

Perigee altitude

502.469 km

Semi-major axis

6,967.198 km

Eccentricity

0.01243

Inclination

64.7736°

RAAN

109.6133°

Arg. of periapsis

129.1968°

True anomaly

230.91422°

Mean anomaly

232.0262°

Eccentric anomaly

231.46914°

Mean motion

3.73212 °/min

Orbital period

96.46 mins

BSTAR

0.00037141

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Other satellites on launch #58 in the year 2015 (2015-10-08 UTC)

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SINOD-D 3 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	2025-12-22 17:24:50.559Z	357.507° N	2025-12-22 17:27:50.559Z	52.218° ENE	20.357°	2025-12-22 17:29:50.559Z	91.212° ESE
5 mins	2025-12-22 19:04:50.559Z	293.783° NW	2025-12-22 19:06:50.559Z	247.651° W	25.857°	2025-12-22 19:09:50.559Z	187.482° SSW
6 mins	2025-12-23 09:07:50.559Z	199.155° SSW	2025-12-23 09:10:50.559Z	83.467° E	42.412°	2025-12-23 09:13:50.559Z	37.877° NE

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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 SINOD-D 3, 40977 on other resources

View SINOD-D 3, 40977 on NASA - NSSDCA Website

View SINOD-D 3, 40977 on Heavens-Above

View SINOD-D 3, 40977 on Keep Track

View SINOD-D 3, 40977 on Celestrak

View SINOD-D 3, 40977 on Gunter's Space Page

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

SINOD-D 3, 40977

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 21 hours ago

TLE from 21 hours ago

TLE epoch observation values (Epoch: 2025-12-21T15:09:44.546Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #58 in the year 2015 (2015-10-08 UTC)

SINOD-D 3 Visibility forecast

Co-orbital & Co-planar RSOs

Check out SINOD-D 3, 40977 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 21 hours ago