Artigo Acesso aberto Revisado por pares

Detection and calibration characteristics of the visible and near-infrared imaging spectrometer in the Chang’e-4

2019; American Institute of Physics; Volume: 90; Issue: 10 Linguagem: Inglês

10.1063/1.5089737

ISSN

1527-2400

Autores

C. L. Li, Rui Xu, Gang Lv, Liyin Yuan, Zhiping He, J. Y. Wang,

Tópico(s)

Spectroscopy Techniques in Biomedical and Chemical Research

Resumo

Chang’e 4 is a robotic lunar exploration mission operated by the China National Space Administration and was to pull off the first-ever soft landing of space hardware on the mysterious lunar far side. The Visible and Near-IR Imaging Spectrometer (VNIS) is one of the main scientific instruments onboard the Chang’e 4 lunar rover. In order to analyze the lunar surface mineral composition, the VNIS was mounted on the front of the rover and detects lunar objects with a 45° visual angle to obtain spectra and geometry data to make mineralogical and compositional measurements. The VNIS is the same as the one in the Chang’e 3 Yutu rover and consists of a visible and near-infrared imaging spectrometer (0.45–0.95 µm), a shortwave IR spectrometer (0.9–2.4 µm), and a calibration unit with dust-proofing functionality. Here, we describe detection and calibration characteristics of the VNIS, which provides valuable information for scientific data processing and applications.

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