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SINOD-D 1, 40974

Orbit data source: Space-Track

SINOD-D 1, 40974 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/40974?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/40974?theme=dark&initialShowStats=false

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Identifier

40974, 2015-058L

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: 16 hours ago

TLE from 16 hours ago

0 SINOD-D 1
1 40974U 15058L   26082.76096655  .00011020  00000-0  56750-3 0  9995
2 40974  64.7597  89.4233 0078515  84.7217 276.2860 15.14112888102674

Epoch: 2026-03-23T18:15Z

TLE epoch observation values (Epoch: 2026-03-23T18:15:47.509Z)

Latitude

0.00003°

Longitude

-5.77298°

Altitude

520.187 km

Speed

7.607 km/s

True Right ascension

05h 57m 41s

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

15:03:52

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

576.405 km

Perigee altitude

468.049 km

Semi-major axis

6,900.364 km

Eccentricity

0.00785

Inclination

64.7597°

RAAN

89.4233°

Arg. of periapsis

84.7217°

True anomaly

275.39077°

Mean anomaly

276.286°

Eccentric anomaly

275.83848°

Mean motion

3.78648 °/min

Orbital period

95.08 mins

BSTAR

0.0005675

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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 1 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 10:38:46.661Z	347.983° N	2026-03-24 10:41:46.661Z	76.336° E	32.722°	2026-03-24 10:44:46.661Z	126.453° SE
5 mins	2026-03-25 02:07:46.661Z	219.108° SW	2026-03-25 02:09:46.661Z	265.473° W	43.589°	2026-03-25 02:12:46.661Z	27.238° 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 1, 40974 on other resources

View SINOD-D 1, 40974 on NASA - NSSDCA Website

View SINOD-D 1, 40974 on Heavens-Above

View SINOD-D 1, 40974 on Keep Track

View SINOD-D 1, 40974 on Celestrak

View SINOD-D 1, 40974 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 1, 40974

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 16 hours ago

TLE from 16 hours ago

TLE epoch observation values (Epoch: 2026-03-23T18:15:47.509Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

SINOD-D 1 Visibility forecast

Co-orbital & Co-planar RSOs

Check out SINOD-D 1, 40974 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 16 hours ago