CZ-IX Carrier Rocket
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Second launch for Long March 11 – lofts five satellites
The Chinese have conducted the second launch of the Long March-11 solid fuel rocket – this time carrying five small satellites into orbit. The launch took place from a mobile launch platform from the Jiuquan satellite Launch Center at 23:42 UTC on Wednesday. Chinese launch: Onboard the LM-11 rocket was the XPNAV-1 pulsar navigation satellite. Along for the ride were the Xaiaoxiang-1 and three Lishui-1 satellites 2016-11-10-011921With a launch mass of 240 kg, the XPNAV-1 ( X-ray Pulsar NAVigation) satellite will test autonomous spacecraft navigation. X-ray pulsar navigation is a navigation tool in which periodic X-ray signals emitted from pulsars are used to determine the location of a spacecraft in deep space. Current ground-based navigation methods are limited by the time delay between spacecraft and the Earth. However, for certain type of pulsars, called “millisecond pulsars,” pulses of radiation occur with the regularity and precision of an atomic clock. As a result, in some scenarios, the pulsar X-ray can take less time to estimate a location. This leads to more precise measurements of a spacecraft’s location. As X-rays from pulsars are absorbed by the atmosphere, scientists have to test this technique in space. This satellite is to detect the details of X-ray signals of 26 nearby pulsars and to create a pulsar navigation database. This target could be achieved within five to 10 years. See Also Chinese Forum Section 65 Launch Vehicle Manuals (L2) Click here to Join L2 Developed by the Aerospace Science and Technology Corporation (CASC) Fifth Academy, the satellite carries two detectors to test its functions in responding to the background noise of the universe, outline pulsar contours, and create a database for pulsar navigation. X-ray pulsar navigation techniques will help to reduce the reliance of spacecraft on ground-based navigation methods and are expected to achieve autonomous spacecraft navigation in the future. Xiaoxiang-1 is a 6U Cubesat designed, developed and manufactured by the Changsha Gaoxinqu Tianyi Research Institute. Weighing 8 kg and placed on a 500 km LEO orbit, the small satellite will test new stabilization system for imaging devices installed in satellites. The three Lishui-1 satellites were developed by the Zhejiang LiTong Electronic Technology Co., Ltd. These are small commercial remote sensing satellites. The Long March-11: The Long March-11 (Chang Zhwng-11) is a small solid-fueled quick-reaction launch vehicle developed by the China Academy of Launch Vehicle Technology (CALT) with the goal to provide an easy to operate quick-reaction launch vehicle, that can remain in storage for long period and to provide a reliable launch on short notice. LM-11 is a four stage solid-fueled launch vehicle equipped with a reaction control system on the fourth stage. The vehicle has a length of 20.8 meters, 2.0 meters in diameter and a liftoff mass of 58,000 kg. At launch it develops 120.000 kg/f, launching a 350 kg cargo into a 700 km SSO. The CZ-11 can use two types of fairing with 1.6 meters or 2.0 meters. 2015-09-25-033828LM-11’s first launch took place on September 25, 2015, when successfully orbited the Pujiang-1 and the three Tianwang small sats from the Jiuquan satellite Launch Center. The Jiuquan Satellite Launch Center, in Ejin-Banner – a county in Alashan League of the Inner Mongolia Autonomous Region – was the first Chinese satellite launch center and is also known as the Shuang Cheng Tze launch center. The site includes a Technical Centre, two Launch Complexes, Mission Command and Control Centre, Launch Control Centre, propellant fuelling systems, tracking and communication systems, gas supply systems, weather forecast systems, and logistic support systems. Jiuquan was originally used to launch scientific and recoverable satellites into medium or low earth orbits at high inclinations. It is also the place from where all the Chinese manned missions are launched. The LC-43 launch complex, also known by South Launch Site (SLS) is equipped with two launch pads: 921 and 603. Launch pad 921 is used for the manned program for the launch of the Chang Zheng-2F launch vehicle (Shenzhou and Tiangong). The 603 launch pad is used for unmanned orbital launches by the Chang Zheng-2C, Chang Zheng-2D and Chang Zheng-4C launch vehicles. Other launch zones at the launch site are used for launching the Kuaizhou and the CZ-11 Cha ng Zheng-11 solid propellant launch vehicles. The first orbital launch took place on April 24, 1970 when the CZ-1 Chang Zheng-1 rocket launched the first Chinese satellite, the Dongfanghong-1 (04382 1970-034A). No related posts.
XPNAV-1 DELIVERED TO ORBIT BY LONG MARCH 11
Yesterday, slightly before midnight China launched from Jiuquan Satellite Launch Center their Long March 11 rocket with scientific satellite XPNAV-1. Launch was conducted 48 hours before planned date; along with XPNAV-1 three different satellites were delivered to orbit. It was 239th mission of rocket from Long March Family - after impressive and full of drama maiden flight of Long March 5 this mission seems to be much more ordinary. Long March 11 performed flawlessly during its second mission and proved that solid fueled launch vehicles could be more useful for missions were low mass payload is delivered to lower orbits. Launch was performed at 23:42 GMT from mobile platform at Jiuquan Satellite Launch Center. Three satellites delivered to orbit by Long March 11 were: XPNAV-1, Xiaoxiang-1, Lishui-1, CAS-2T. Of course in this group most important was XPNAV-1 satellite; weighing 240 kg this experimental spacecraft will help is future utilization of signals emitted by Pulsars for precision timekeeping necessary for space navigation systems and navigational satellites operating under systems like Beidou or GPS. These signals are emitted periodically with accuracy under fraction of millisecond as X ray impulses and can be spotted with special devices. XPNAV-1 will try to gather data on Pulsars which are generating such impulses. Such map of Pulsars which are generating X ray impulses will be very useful for creating in future deep space navigation systems not limited by receiving signals from Earth (which would be received with delay what would result in less precise estimation of the position). Satellite, just as rest of spacecrafts, was designed to operate from SSO orbit and according to Xinhua news agency it already confirmed reaching correct orbit. Next satellite, which reached orbit as piggyback payload of XPNAV-1 was Xiaoxiang-1. It was designed and manufactured by Changsha Gaoxinqu Tianyi Research Institute in Hunan. It is 6U sized Cubesat with weight of 8 kg and will serve for testing new stabilization system for cameras. CAS-2T is amateur radio satellite designed and operated by CAMSAT (non-profit organization promoting development of amateur satellites in China). It is equipped with FM transponder operating with two frequencies: 145.925 MHz (uplink) and 435.615 MHz (downlink) and single telemetry beacon transmitting on 435.710 MHz. It will remain on orbit for 30 days. Last satellite is probably (according to Nasaspaceflight) Lishui-1 remote sensing satellite designed by Zhejiang LiTong Electronic Technology Co., Ltd. It is beginning of constellation of 80-12- satellites available commercially for Chinese companies and offering remote sensing services. Long March 11 is solid fueled small launch vehicle designed and manufactured by China Academy of Launch Vehicle Technology (CALT). Its design is probably based on DF-31 ICBM. First flight was conducted from Jiuquan Satellite Launch Center on September 25, 2015. Rocket is based on four stages with 20.8 m of length has diameter of 2 m and mass of 58 t. It is able to reach SSO orbit with maximal payload of 350 kg under fairing with diameter of 1.6 m. UPDATE 11/11/2016: Launch will be followed by mission of Long MArch 2D with Yunhai-1 satellite on atop. Mission is planned for 11th November 2016. Sources: http://news.sina.com.cn/c/2016-11-10/doc-ifxxsfip4329847.shtml
Chang Zheng 11 (Long March 11)
The Chang Zheng 11 (CZ-11, or Long March 11) is a four-stage, solid-propellant, small-load launch vehicle developed by China Academy of Launch Vehicle Technology (CALT). The launch vehicle is believed to have developed from the three-stage DF-31 (NATO designation: CSS-9) intercontinental ballistic missile (ICBM), added with a solid propellant fourth-stage. The launch vehicle made its maiden flight from a mobile pad at the Jiuquan Satellite Launch Centre on 25 September 2015, placing four small satellites into orbit. Chinese state television showed that the launch vehicle was fired from canister carried on a transporter-erector-launcher (TEL) vehicle. Development of the CZ-11 began in October 2010, initially as a commercial project funded by the China Aerospace Science and Technology Corporation (CASC). In December 2012, it became a state-funded project. The CZ-11 is 20.8 m in length and 2.0 m in diameter, with a gross mass of 58 t and a lift-off thrust of 120 t. The launch vehicle is capable of lofting 350 kg payload to a 700 km Sun Synchronous Orbit (SSO), or 700 kg to Low Earth Orbit (LEO). The launch vehicle is fitted with a standard adopter for the launch of foreign satellites.
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1 The list includes two new boosters — Long March 6 and Long March 11 — that are designed to serve the growing small-satellite launch market.
2 The Long March 11 , or Chang Zheng 11 as in pinyin, abbreviated LM-11 for export or CZ-11 within China, is a Chinese solid-fueled carrier rocke
3 The CZ-11 (Chang Zheng-11), also known as LM-11 (Long March-11), is a small solid-fueled quick-reaction launch vehicle.