{"id":"95eb9265-bdbe-43ad-b08c-6be7eb4e58f4","url":"https://lldev.thespacedevs.com/2.0.0/launch/95eb9265-bdbe-43ad-b08c-6be7eb4e58f4/?format=json","launch_library_id":null,"slug":"long-march-4b-yaogan-53-01-to-0356-01-to-03","name":"Long March 4B | Yaogan 53-01 to 03/56-01 to 03","status":{"id":3,"name":"Success"},"net":"2026-09-10T09:00:00Z","window_end":"2026-09-10T09:13:00Z","window_start":"2026-09-10T08:52:00Z","inhold":false,"tbdtime":false,"tbddate":false,"probability":null,"holdreason":"","failreason":"","hashtag":null,"launch_service_provider":{"id":88,"url":"https://lldev.thespacedevs.com/2.0.0/agencies/88/?format=json","name":"China Aerospace Science and Technology Corporation","featured":true,"type":"Government","country_code":"CHN","abbrev":"CASC","description":"The China Aerospace Science and Technology Corporation (CASC) is the main contractor for the Chinese space program. It is state-owned and has a number of subordinate entities which design, develop and manufacture a range of spacecraft, launch vehicles, strategic and tactical missile systems, and ground equipment. It was officially established in July 1999 as part of a Chinese government reform drive, having previously been one part of the former China Aerospace Corporation. Various incarnations of the program date back to 1956.","administrator":"Chairman & President: Lei Fanpei","founding_year":"1999","launchers":"Long March","spacecraft":"","launch_library_url":null,"total_launch_count":617,"consecutive_successful_launches":8,"successful_launches":601,"failed_launches":16,"pending_launches":7,"consecutive_successful_landings":1,"successful_landings":1,"failed_landings":1,"attempted_landings":2,"info_url":"https://english.spacechina.com/","wiki_url":"https://en.wikipedia.org/wiki/China_Aerospace_Science_and_Technology_Corporation","logo_url":"https://thespacedevs-dev.nyc3.digitaloceanspaces.com/media/images/china2520aerospace2520science2520and2520technology2520corporation_logo_20220826093937.png","image_url":"https://thespacedevs-dev.nyc3.digitaloceanspaces.com/media/images/china2520aerospace2520science2520and2520technology2520corporation_image_20191228094408.jpeg","nation_url":"https://thespacedevs-dev.nyc3.digitaloceanspaces.com/media/images/china2520aerospace2520science2520and2520technology2520corporation_nation_20230604193716.png"},"rocket":{"id":9127,"configuration":{"id":10,"launch_library_id":16,"url":"https://lldev.thespacedevs.com/2.0.0/config/launcher/10/?format=json","name":"Long March 4B","description":"The Long March 4B (Chinese: 长征四号乙火箭), also known as the Chang Zheng 4B, CZ-4B and LM-4B is a Chinese orbital carrier rocket. Launched from Launch Complex 1 at the Taiyuan Satellite Launch Center, it is a 3-stage rocket, used mostly to place satellites into low Earth and sun synchronous orbits.","family":"Long March","full_name":"Long March 4B","manufacturer":{"id":88,"url":"https://lldev.thespacedevs.com/2.0.0/agencies/88/?format=json","name":"China Aerospace Science and Technology Corporation","featured":true,"type":"Government","country_code":"CHN","abbrev":"CASC","description":"The China Aerospace Science and Technology Corporation (CASC) is the main contractor for the Chinese space program. It is state-owned and has a number of subordinate entities which design, develop and manufacture a range of spacecraft, launch vehicles, strategic and tactical missile systems, and ground equipment. It was officially established in July 1999 as part of a Chinese government reform drive, having previously been one part of the former China Aerospace Corporation. Various incarnations of the program date back to 1956.","administrator":"Chairman & President: Lei Fanpei","founding_year":"1999","launchers":"Long March","spacecraft":"","launch_library_url":null,"total_launch_count":617,"consecutive_successful_launches":8,"successful_launches":601,"failed_launches":16,"pending_launches":7,"consecutive_successful_landings":1,"successful_landings":1,"failed_landings":1,"attempted_landings":2,"info_url":"https://english.spacechina.com/","wiki_url":"https://en.wikipedia.org/wiki/China_Aerospace_Science_and_Technology_Corporation","logo_url":"https://thespacedevs-dev.nyc3.digitaloceanspaces.com/media/images/china2520aerospace2520science2520and2520technology2520corporation_logo_20220826093937.png","image_url":"https://thespacedevs-dev.nyc3.digitaloceanspaces.com/media/images/china2520aerospace2520science2520and2520technology2520corporation_image_20191228094408.jpeg","nation_url":"https://thespacedevs-dev.nyc3.digitaloceanspaces.com/media/images/china2520aerospace2520science2520and2520technology2520corporation_nation_20230604193716.png"},"program":[],"variant":"B","alias":"","min_stage":3,"max_stage":3,"length":44.1,"diameter":3.35,"maiden_flight":"1999-05-10","launch_mass":249,"leo_capacity":4200,"gto_capacity":1500,"to_thrust":2961,"apogee":null,"vehicle_range":null,"image_url":"https://thespacedevs-dev.nyc3.digitaloceanspaces.com/media/images/long_march_4b_l_image_20251209044050.jpeg","info_url":null,"wiki_url":"https://en.wikipedia.org/wiki/Long_March_4B","total_launch_count":58,"consecutive_successful_launches":38,"successful_launches":57,"failed_launches":1,"pending_launches":0},"launcher_stage":[],"spacecraft_stage":null},"mission":{"id":7723,"launch_library_id":null,"name":"Yaogan 53-01 to 03/56-01 to 03","description":"6 Chinese military “remote sensing” satellite of unknown purposes.","launch_designator":null,"type":"Government/Top Secret","orbit":{"id":8,"name":"Low Earth Orbit","abbrev":"LEO"}},"pad":{"id":22,"url":"https://lldev.thespacedevs.com/2.0.0/pad/22/?format=json","agency_id":null,"name":"Launch Area 94 (SLS-2 / 603)","info_url":null,"wiki_url":"https://en.wikipedia.org/wiki/Jiuquan_Launch_Area_4","map_url":"https://www.google.com/maps?q=40.960482,100.298059","latitude":"40.960482","longitude":"100.298059","location":{"id":17,"url":"https://lldev.thespacedevs.com/2.0.0/location/17/?format=json","name":"Jiuquan Satellite Launch Center, People's Republic of China","country_code":"CHN","map_image":"https://thespacedevs-dev.nyc3.digitaloceanspaces.com/media/map_images/location_17_20200803142429.jpg","total_launch_count":298,"total_landing_count":3},"map_image":"https://thespacedevs-dev.nyc3.digitaloceanspaces.com/media/map_images/pad_22_20200803143437.jpg","total_launch_count":138},"infoURLs":[],"vidURLs":[],"webcast_live":false,"image":"https://thespacedevs-dev.nyc3.digitaloceanspaces.com/media/images/long_march_4b_l_image_20251209044050.jpeg","infographic":null,"program":[],"orbital_launch_attempt_count":7386,"location_launch_attempt_count":295,"pad_launch_attempt_count":138,"agency_launch_attempt_count":613,"orbital_launch_attempt_count_year":213,"location_launch_attempt_count_year":22,"pad_launch_attempt_count_year":6,"agency_launch_attempt_count_year":43}