Chinese rover obtains first spectrum of lunar rock
Washington: The Active Particle-induced X-ray Spectrometer (APXS) that was carried by Chang`e-3 satellite`s Yutu rover, obtained its first X-ray fluorescence spectrum of lunar regolith around the landing site on December 25.
An initial analysis indicates that eight major rock-forming elements (Mg, Al, Si, K, Ca, Ti, Cr and Fe) and at least 3 minor elements (Sr, Y and Zr) of the Moon can be identified in this spectrum.
APXS was firstly powered on December 23, and an in-flight calibration of a standard basalt rock sample mounted on the rover was accomplished in five minutes, which proved its stable performance on the Moon.
Two days later, APXS was successfully deployed to about two to three centimeters above the lunar regolith surface by the robotic arm of Yutu and started the detection mode.
APXS was not only an X-ray spectrometer, but also served as a distance sensor during the deployment by making use of how X-ray count rate varied with distance.
More from India
More from World
More from Sports
More from Entertaiment
- Delhi: 8-year-old boy dies after falling into pothole
- Woman commits suicide in UP after posting message on social media
- Nirbhaya gang-rape convict Vinay Sharma attempts suicide in Tihar Jail
- Rajnath Singh, Mehbooba Mufti hold joint press conference on Kashmir violence
- Will appoint nodal officer for Kashmiris: Rajnath Singh
- Being overweight linked to eight more kinds of cancer
- Pentagon probes possible civilian casualties in Syria strike: official
- Actress Leslie Jones' website hacked, nude photos posted
- Afghan forces hunt gunmen after American University attack
- Islamic State attacks Western-backed camp on Jordan-Syria border