BEIJING, June 25 -- China sent a new satellite of the BeiDou Navigation Satellite System (BDS) into space from the Xichang Satellite Launch Center in Sichuan Province at 2:09 a.m. Tuesday.
Launched on a Long March-3B carrier rocket, the satellite was sent to the inclined geosynchronous earth orbit. It is the 46th satellite of the BDS satellite family and the 21st satellite of the BDS-3 system.
The design of the BDS constellation is unique, including medium earth orbit (MEO), geostationary earth orbit (GEO) and inclined geosynchronous earth orbit (IGEO) satellites.
So far, there are already 18 MEO BDS-3 satellites, one GEO BDS-3 satellite, and two IGEO BDS-3 satellites sent into space.
After in-orbit tests, the new satellite will work with those BDS satellites already in orbits to improve the coverage and positioning accuracy of the system.
The new satellite and the carrier rocket were developed by the China Academy of Space Technology and the China Academy of Launch Vehicle Technology under the China Aerospace Science and Technology Corporation.
The launch was the 307th mission for the Long March series of carrier rockets.
闽教版英语三上《Unit 7 Colors》(Lesson13)word教案
闽教版英语六上《Unit 4 On Holidays》(lesson7)word教案
闽教版[2013版]三上《Unit 5 My Families》(Lesson 10)word教案
闽教版英语三上《Unit 3 Numbers》(Lesson6)word教案
2013闽教版五上《Unit 3 A Visit to the Zoo》word教案
闽教版英语六上《Unit 2 Housework》word教案
闽教版[2013版]三上《Unit 6 Colors》(Lesson 12)word教案
闽教版英语五上《Unit 3 A Visit to the Zoo》word教案
闽教版英语四上《Unit 1 Our School》word教案
闽教版英语六上《Unit 2 Housework》(lesson4)word教案
闽教版英语四上《Unit 1 Our School》(lesson1)word教案
闽教版英语六上《Unit 1 Talking about the Summer Vacation》word教案(一)
闽教版[2013版]三上《Unit 7 School Things》(Lesson 13)word教案
闽教版英语三上《Unit 9 Happy New Year》(Lesson17)word教案
闽教版[2013版]三上《Unit 1 Hello》word教案
闽教版英语五上《Unit 5 Asking the Way(1)》(lesson9)word教案(一)
闽教版英语三上《Unit 3 Numbers》(Lesson5)word教案
闽教版[2013版]三上《Unit 3 Numbers》(Lesson 6)word教案
闽教版[2013版]三上《Unit 2 Greetings》(Lesson 3)word教案
闽教版英语四上《Unit 1 Our School》(period1)word教案
闽教版[2013版]三上《Unit 4 Age and Phone Numbers》(Lesson 8)word教案
闽教版英语三上《Unit 5 Families》(Lesson9)word教案
闽教版[2013版]三上《Unit 3 Numbers》(Lesson 5)word教案
闽教版[2013版]三上《Unit 4 Age and Phone Numbers》(Lesson 7)word教案
闽教版英语六上《Unit 1 Talking about the Summer Vacation》word教案
闽教版英语五上《unit 1 Getting Ready for school》word教案
闽教版英语四上《Unit 3 Numbers》(lesson6)word教案
闽教版英语四上《Unit 1 Our School》(第一课)word教案
2013闽教版五上《Unit 5 Asking the Way(1)》word教案
闽教版英语四上《Unit 1 Our School》(第二课)word教案
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |