TJS-2 (41911)

COSPAR: 2017-001A | Alt Name: Tongxin Jishu Shiyan 2

Image
TJS-2 Satellite Image
Additional Sources
Launch Details

Launch Date

January 5, 2017

Launch Site

XICLF

Launch Pad

LC2

Launch Vehicle

Chang Zheng 3B

Orbital Elements

NORAD ID

41911

International Designator

2017-001A

Epoch

Sat, 04 Jul 2026 03:56:21 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

0.87°

Right Ascension

85.12°

Eccentricity

Calculating...

Argument of Perigee

64.03°

Period

1436.08 min

Mean Motion

1.00 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

TJS-2

Alternative Name

Tongxin Jishu Shiyan 2

Type

Payload

Status

Operational

Owner

CASC

Country

China

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 41911U 17001A   26185.16413713  .00000005  00000-0  00000-0 0  9998
2 41911   0.8745  85.1249 0000848  64.0317 258.6747  1.00273189 34885

Source: Celestrak

Summary
The TJS-2 (Tongxin Jishu Shiyan 2) satellite, also known by its NORAD ID 41911 and OBJECT_ID 2017-001A, is a Chinese spacecraft belonging to the FY-4 bus series with an uncertain configuration of SAST-5000. Launched on January 5, 2017, from Xichang Satellite Launch Center (XICLF), LC2, using the Chang Zheng 3B launch vehicle, it was manufactured by Shanghai Institute of Satellite Engineering (SISE) and owned by China Aerospace Science and Industry Corporation (CASC). The satellite's primary mission is listed as early warning with uncertainty. It has dimensions of 5 meters in length, a diameter of 2.5 meters, and spans 30 meters when its solar arrays are deployed. Its dry mass is 2,500 kilograms, and it had a launch mass of 4,000 kilograms. The satellite's power system consists of two deployable solar arrays and batteries. It has an RCS value of 43.7918 and is described as having a box shape with two panels.
Physical Characteristics

Length

5

Diameter

2.5

Span

30

Dry Mass

2500

Launch Mass

4000

Shape

Box+ 2 panels

Radar Cross Section

43.7918

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Huoyan-1

Purpose

Early warning ?

Mission

Early warning ?

Manufacturer

SISE

Life Expectancy

Unknown

Bus

FY-4

Configuration

SAST-5000 ?

Motor

?

Equipment

Unknown

Power System

2 deployable solar arrays, batteries

ADCS

Unknown

Transmitter Frequency

Unknown

Map
This tool will help you track the satellite's position and predict its upcoming passes over your location. Simply input the coordinates or click the geolocation button to get started.
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration

Satellite Articles

View All Posts »

Learn more about satellites and other related topics.

Space Brief 25 Dec 2025

Space Brief 25 Dec 2025

Today's highlights include the Pentagon's report on China's military buildup, Innospace's upcoming launch plans, Starlink's rapid growth, China's significant space strides in 2025, and India's successful deployment of BlueBird 6.

Space Brief 30 Oct 2025

Space Brief 30 Oct 2025

Today's brief explores rising investments in space with defense ties, potential Space Force-NRO coordination, and more, offering insight into current military and defense satellite dynamics.

X Report 4 Dec 2024

X Report 4 Dec 2024

SpaceX's Falcon 9 achieves a milestone with its 24th launch for Starlink, while competitive moves continue in the satellite internet market.

X Report 11 Jan 2025

X Report 11 Jan 2025

Starship Flight 7 scheduled for Jan 13, SpaceX sets Falcon 9 record, and NRO expands spy satellite constellation.

Space Brief 22 Mar 2025

Space Brief 22 Mar 2025

Today's briefing covers a range of critical space industry updates, from Space Force's strategic initiatives to SpaceX's latest launch record and groundbreaking developments in orbital manufacturing.

X Report 10 Jun 2025

X Report 10 Jun 2025

Exciting advancements from SpaceX include the debut of a new Dragon capsule for Axiom Space, continued Starlink deployments, and significant shifts in U.S. rural broadband funding that could benefit Starlink.

Space Brief 6 Jun 2025

Space Brief 6 Jun 2025

Today's space news features significant discussions on the funding of Space Force, advancements in hypersonic technology, and the potential impacts of spectrum auction plans on border defense systems.

X Report 8 Feb 2025

X Report 8 Feb 2025

SpaceX makes strides on Starship launch pad, upcoming Starlink infusions from California and Florida, and regulatory challenges loom with FCC and C-band spectrum.