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TIANLIAN-3 01, 100172

Orbit data source: Space-Track

TIANLIAN-3 01, 100172 is a payload satellite owned by SpaceX/Seattle (CN) in HEO that was launched on Wed, 29 Jul 2026 UTC launched from the Wenchang Satellite Launch Center (WSC). 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/100172?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

100172, 2026-172A

Orbit

HEO

Country

CN / PRC

Related business

SpaceX (US)

Manufacturer

SpaceX/Seattle

Mission

Operational spacecraft

Bus & Motor

STARLINK V2MO, Unknown motor

Mass

575 kg wet, ~530 kg dry

Launch date (UTC)

2026-07-29 (2 days ago)

Launch vehicle

Unknown

Launch site

Wenchang Satellite Launch Center (WSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

BOX + PAN, 14.5 m

Radar Cross Section

RCS unknown

Expand to show TLE details & history
Last TLE update: 2 days ago

TLE from 2 days ago

0 TIANLIAN-3 01
1 A0172U 26172A   26210.73258231  .00007279  00000-0  10443-2 0  9999
2 A0172  15.4420 145.4634 7295286 179.7295 181.2239  2.28006376    26

Epoch: 2026-07-29T17:34Z

TLE epoch observation values (Epoch: 2026-07-29T17:34:55.111Z)

Latitude

0.00011°

Longitude

-65.68096°

Altitude

35,809.04 km

Speed

1.597 km/s

True Right ascension

09h 41m 43s

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

10:41:25

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,803.334 km

Perigee altitude

218.39 km

Semi-major axis

24,388.999 km

Eccentricity

0.72953

Inclination

15.442°

RAAN

145.4634°

Arg. of periapsis

179.7295°

True anomaly

180.27985°

Mean anomaly

181.2239°

Eccentric anomaly

180.70766°

Mean motion

0.56984 °/min

Orbital period

631.76 mins

BSTAR

0.0010443

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Other satellites on launch #172 in the year 2026 (2026-07-29 UTC)

CZ-7A R/B, 100173

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TIANLIAN-3 01 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.
369 mins	2026-07-31 21:03:54.866Z	212.322° SW	2026-07-31 21:03:54.866Z	212.322° SW	30.363°	2026-08-01 03:12:54.866Z	149.762° SSE
384 mins	2026-08-01 14:39:54.866Z	163.492° S	2026-08-01 21:03:54.866Z	180.592° SSW	36.775°	2026-08-01 21:03:54.866Z	180.592° SSW

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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 TIANLIAN-3 01, 100172 on other resources

View TIANLIAN-3 01, 100172 on NASA - NSSDCA Website

View TIANLIAN-3 01, 100172 on Heavens-Above

View TIANLIAN-3 01, 100172 on Keep Track

View TIANLIAN-3 01, 100172 on Celestrak

View TIANLIAN-3 01, 100172 on Gunter's Space Page

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

TIANLIAN-3 01, 100172

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-07-29T17:34:55.111Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #172 in the year 2026 (2026-07-29 UTC)

TIANLIAN-3 01 Visibility forecast

Co-orbital & Co-planar RSOs

Check out TIANLIAN-3 01, 100172 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago