• Wed. May 18th, 2022

China has launched new Jilin-1 satellite batches for commercial remote sensing

ByKarol Donimirski

May 12, 2022

Late Wednesday (May 4), a Long March rocket sent 8 Jilin-1 satellites for remote sensing into orbit, days after another batch was deployed from a sea platform. At 10:38 p.m. Eastern on May 4, a Long March 2D rocket released from the facility of Taiyuan Satellite Launch Center situated in north China, with thermal insulation sheets peeling away as the rocket was rising into the sky.

Seven Jilin-1 Gaofen (“high resolution”) 03D satellites, with numbering ranging from 27 to 33, as well as the bigger, wide-field-of-view Jilin-1 Kuanfu 01C satellite was on board for CGST (Changguang Satellite Technology), which is a commercial remote sensing offshoot of the CIOMP (Changchun Institute of Optics, Fine Mechanics, and Physics) under the CAS (Chinese Academy of Sciences).

The Jilin-1 Gaofen satellites, which weigh about 43 kg, send back panchromatic images having a resolution of about 0.75 meters or 3 meters in multispectral mode. Jilin-1 Kuanfu 01C weighs around 1,250 kg. According to Changguang Satellite, it has a sweep width of more than 150 kilometers and produces image products having a resolution of about 0.5 meters in full color as well as 2 meters in the multispectral mode.

The launch came after the deployment of 5 other Jilin-1 satellites on April 30 (Universal time), notably the 0.50-meter-resolution Gaofen 04A and Jilin-1 Gaofen 03D04 to 07. Due to adverse weather, the deployment was postponed.

A Long March 11 solid rocket deployed from a station in the Yellow Sea placed the satellites into 530 x 546-kilometer sun-synchronous orbits. It was China’s third sea deployment, and the farthest south of the sea launch facilities in Haiyang, Shandong province.

At Haiyang, China has built infrastructure to facilitate launches from the sea. The capabilities could help relieve congestion at the other national spaceports and prevent debris that falls near populated areas after inland launches.

This was also the inaugural time a proximate final assembly and test facility had been utilized for a Long March 11 deployment, which reduced launch readiness time and mission transportation expenses.

CGST is among the most renowned and well-financed commercial space enterprises to emerge in China since a legislative decision in 2014 to allow private funding into the sector.

In November of 2020, the firm received $375 million in financing for its Jilin-1 program, and it now boasts the largest Chinese commercial network in orbit. Changchun is the capital of Jilin Province, and the constellation is named for it.

Changguang Satellite presently has 54 satellites in the orbit and boasts that its Jilin-1 constellation can visit any location on Earth between 17 to 20 times per day, offering additional product services and remote sensing data for utilization in environmental protection, agriculture, forestry, oceans, urban building, and scientific operations. Around 2030, CGST hopes to complete the entire 138-satellite, 10-minute revisit constellation.

China’s 13th and 14th deployments in the year 2022, all of which utilized Long March rockets created by CASC (China Aerospace Science and Technology Corporation). In 2022, CASC plans to launch upwards of 50 missions, including six to the Chinese Space Station. Commercial actors like CAS Space, Galactic Energy, Landspace, Expace, and others are scheduled to participate in the deployment.

Leave a Reply

Your email address will not be published.