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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 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: 10 hours ago

TLE from 10 hours ago

0 SINOD-D 3
1 40977U 15058P   26037.19663194  .00005991  00000-0  51464-3 0  9990
2 40977  64.7746 324.5184 0120336 110.7902 250.6151 14.92877538 95193

Epoch: 2026-02-06T04:43Z

TLE epoch observation values (Epoch: 2026-02-06T04:43:08.999Z)

Latitude

-0.00009°

Longitude

117.39289°

Altitude

619.701 km

Speed

7.534 km/s

True Right ascension

21h 38m 04s

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

16:24:13

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

671.356 km

Perigee altitude

503.712 km

Semi-major axis

6,965.671 km

Eccentricity

0.01203

Inclination

64.7746°

RAAN

324.5184°

Arg. of periapsis

110.7902°

True anomaly

249.3209°

Mean anomaly

250.6151°

Eccentric anomaly

249.96734°

Mean motion

3.73335 °/min

Orbital period

96.43 mins

BSTAR

0.00051464

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

ATLAS 5 CENTAUR R/B, 40978

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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.
7 mins	2026-02-06 20:56:46.519Z	215.639° SW	2026-02-06 20:59:46.519Z	259.289° W	44.12°	2026-02-06 21:03:46.519Z	29.365° NE
6 mins	2026-02-07 05:22:46.519Z	342.924° N	2026-02-07 05:24:46.519Z	26.715° NE	38.026°	2026-02-07 05:28:46.519Z	134.058° SE

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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: 10 hours ago

TLE from 10 hours ago

TLE epoch observation values (Epoch: 2026-02-06T04:43:08.999Z)

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: 10 hours ago