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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 (11 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: 6 hours ago

TLE from 6 hours ago

0 SINOD-D 3
1 40977U 15058P   26147.55619600  .00005058  00000-0  42777-3 0  9996
2 40977  64.7738 340.2366 0118492  66.3913 294.9589 14.93843236111676

Epoch: 2026-05-27T13:20Z

TLE epoch observation values (Epoch: 2026-05-27T13:20:55.334Z)

Latitude

-0.00004°

Longitude

-105.10756°

Altitude

553.961 km

Speed

7.604 km/s

True Right ascension

22h 40m 56s

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

05:07:26

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

667.033 km

Perigee altitude

502.029 km

Semi-major axis

6,962.668 km

Eccentricity

0.01185

Inclination

64.7738°

RAAN

340.2366°

Arg. of periapsis

66.3913°

True anomaly

293.72024°

Mean anomaly

294.9589°

Eccentric anomaly

294.34034°

Mean motion

3.73577 °/min

Orbital period

96.37 mins

BSTAR

0.00042777

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

USA 264 DEB, 40981

SNAP-3 JIMI, 40975

ATLAS 5 CENTAUR R/B, 40978

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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.
7 mins	2026-05-27 23:31:24.238Z	332.347° NNW	2026-05-27 23:34:24.238Z	29.662° NE	44.011°	2026-05-27 23:38:24.238Z	143.956° SSE
5 mins	2026-05-28 15:14:24.238Z	258.182° W	2026-05-28 15:16:24.238Z	309.48° NW	27.973°	2026-05-28 15:19:24.238Z	10.205° 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: 6 hours ago

TLE from 6 hours ago

TLE epoch observation values (Epoch: 2026-05-27T13:20:55.334Z)

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: 6 hours ago