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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: 18 hours ago

TLE from 18 hours ago

0 SINOD-D 3
1 40977U 15058P   26082.67516391  .00004114  00000-0  35580-3 0  9996
2 40977  64.7730 182.7049 0117962  92.3904 269.0721 14.93348953101985

Epoch: 2026-03-23T16:12Z

TLE epoch observation values (Epoch: 2026-03-23T16:12:14.161Z)

Latitude

-0°

Longitude

118.48213°

Altitude

591.812 km

Speed

7.563 km/s

True Right ascension

12h 10m 49s

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

15:03:51

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

668.219 km

Perigee altitude

503.917 km

Semi-major axis

6,964.205 km

Eccentricity

0.0118

Inclination

64.773°

RAAN

182.7049°

Arg. of periapsis

92.3904°

True anomaly

267.72098°

Mean anomaly

269.0721°

Eccentric anomaly

268.39649°

Mean motion

3.73453 °/min

Orbital period

96.4 mins

BSTAR

0.0003558

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

ATLAS 5 CENTAUR R/B, 40978

SNAP-3 ALICE, 40970

USA 264, 40964

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

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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.
6 mins	2026-03-24 16:50:45.622Z	343.6° N	2026-03-24 16:53:45.622Z	65.693° ENE	36.862°	2026-03-24 16:56:45.622Z	128.183° SE
5 mins	2026-03-25 08:33:45.622Z	242.548° WSW	2026-03-25 08:35:45.622Z	308.639° NW	36.864°	2026-03-25 08:38:45.622Z	17.68° NNE

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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: 18 hours ago

TLE from 18 hours ago

TLE epoch observation values (Epoch: 2026-03-23T16:12:14.161Z)

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: 18 hours ago