Ultra-low-frequency radio astronomy observations from a Seleno-centric orbit
This paper introduces the first results of observations with the Ultra-Long-Wavelength (ULW) —- Low Frequency Interferometer and Spectrometer (LFIS) on board the selenocentric satellite Longjiang-2. We present a brief description of the satellite and focus on the LFIS payload. The in-orbit commissio...
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| Veröffentlicht in: | Experimental astronomy 2023-01, Vol.56 (1), p.333-353 |
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| creator | Jingye, Yan Wu, Ji Gurvits, Leonid I Wu, Lin Deng, Li Zhao, Fei Zhou, Li Lan Ailan Fan Wenjie Yi, Min Yang, Yang Yang, Zhen Wei Mingchuan Guo Jinsheng Qiu, Shi Wu, Fan Hu Chaoran Chen, Xuelei Rothkaehl Hanna Morawski Marek |
| description | This paper introduces the first results of observations with the Ultra-Long-Wavelength (ULW) —- Low Frequency Interferometer and Spectrometer (LFIS) on board the selenocentric satellite Longjiang-2. We present a brief description of the satellite and focus on the LFIS payload. The in-orbit commissioning confirmed a reliable operational status of the instrumentation. We also present results of a transition observation, which offers unique measurements on several novel aspects. We estimate the RFI suppression required for such a radio astronomy instrumentation at the Moon-distances from Earth as order of − 80 dB. We analyse a method of separating Earth- and satellite-originated radio frequency interference (RFI). It is found that the RFI level at frequencies lower than a few MHz is smaller than the receiver noise floor. |
| doi_str_mv | 10.1007/s10686-022-09887-0 |
| format | Article |
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| subjects | Instruments LF radio Radio astronomy Radio frequency interference |
| title | Ultra-low-frequency radio astronomy observations from a Seleno-centric orbit |
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