Issue 143

China Launches Guowang Test Satellite

11 Apr 2026: China launched a Smart Dragon-3 (Jielong-3) with one Weixing Hulianwang Jishu Shiyan Weixing (Satellite Internet Technology Test Satellite, Guowang Test Object A) (68687) satellite from a sea-based platform off the coast of Yangjiang, Guangdong Province. By my count 68687 is the 19 th test satellite for the Guowang constellation, and is the second to be sea-launched using a Jielong-3 (the other was 58505).

11 Apr 2026: China launched a Smart Dragon-3 (Jielong-3) with one Weixing Hulianwang Jishu Shiyan Weixing (Satellite Internet Technology Test Satellite, Guowang Test Object A) (68687) satellite from a sea-based platform off the coast of Yangjiang, Guangdong Province. By my count 68687 is the 19th test satellite for the Guowang constellation, and is the second to be sea-launched using a Jielong-3 (the other was 58505). Launch Video.

– 68687 orbit is in a circular orbit with an SMA of 1,004km and inclination of 86.5°

  • China will likely raise 68687’s SMA to 1,111km and match that of the 3 other Guowang Test satellites (57288, 57289, & 58505) with 86.5° inclinations (for comparison 58505 required ~6 months on orbit to reach 1,111km).
  • 58505 was also launched from the Yellow Sea on a Jielong-3.
  • 68687 has a 49° west RAAN offset from 58505.
  • 58505 has a 33° west RAAN offset from 57288 & 57289
    • 58505 is nearly equal distance from 57288 & 57289 (4,810km & 4,653km respectively)

– Guowang Test Launch Summary: China has conducted 8 test launches. 3 launches to 86.5° Inclination, 4 launches to 50.0° inclination, and 1 launch to 55.0° inclination.

  • Test Launch 1* (9 Jul 2023): 2 sats (57288 & 57289) on LM-2C from Jiquan.
    • 86.5° inclination, 1,111km SMA
  • Test Launch 2* (23 Nov 2023): 3 sats (58425, 58426, 58427) on LM-2D from Xichang
    • 50.0° inclination, 1,104km SMA
  • Test Launch 3* (5 Dec 2023): 1 sat (58505) on Jielong-3 from Yellow Sea.
    • 86.5° inclination, 1,111km SMA
  • Test Launch 4* (30 Dec 2023): 3 sats (58691, 58692, 58693) on LM-2C from Jiuquan
    • 50.0° inclination, 1,104km SMA
  • Test Launch 5 (30 Nov 2024) 1 sat (62186) on LM-2C from Wenchang
    • 50.0° inclination, 1,104km SMA
  • Test Launch 6 (1 Apr 2024): 4 sats (63428-63431) on LM-2D from Jiuquan
    • 55.0° inclination, 450-470km SMA
    • 63428 de-orbited 16 Oct 2025
    • 63429, 63430, 63431 have recently increased SMA from ~450km to 470km
  • Test Launch 7 (16 Sep 2025): 4 sats (65617-65620) on LM-2C from Jiuquan
    • 50.0° inclination, 1,104km SMA
  • Test Launch 8 (11 Apr 2026): 1 sat (68687) on Jielong-3 from Yellow Sea
    • 86.5° inclination, 1,004km SMA (will likely raise to 1,111km over time…

* Denotes launches occurring prior to first operational LEO Guowang launch 16 Dec 2024

– Relationship with Operational Guowang Satellites with 86.5° inclination

  • Guowang Test satellites are maintaining an SMA 57km less than operational Guowang satellites (1,111km vs 1,168km)
  • None of the Test Satellites are Co-planar with their operational counterparts
    • 58505 has a <1° east RAAN offset with Guowang Groups 5 & 15
    • 58505 has a 10° west RAAN offset with Guowang Group 1
    • 57288/57289 have a ~10° west RAAN offset with Guowang Gp 3

Sea Dragon-3 (Jielong-3) Launch Preparations (top) & Sea-Launch (below)
(nasaspaceflight.com)

Guowang Test Satellites with 86.5° Inclination. 68687 (Green) has 49° west RAAN offset from 58505
(saberastro.com)

Orbit Comparison: Test (Green & Yellow) v Operational (Red
(saberastro.com)

3 Guowang Test Satellites Appear to be Orbiting in Formation
(saberastro.com)