Continuous Solar Observations from the Ground—Assessing Duty Cycle from GONG Observations
نویسندگان
چکیده
Continuous observations play an important role in the studies of solar variability. While such can be achieved from space with almost 100% duty cycle, it is difficult to accomplish very high cycle ground. In this context, we assess that has been ground by analyzing a six station network identical instruments, Global Oscillation Network Group (GONG). We provide detailed analysis using GONG spanning over 18 years. also discuss individual sites and point out various factors may impact site or cycle. The mean 93%, however reduces about 5% after all images pass through stringent quality-control checks. standard deviations monthly yearly values are found 1.9% 2.2%, respectively. These results baseline used planning future ground-based networks.
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ژورنال
عنوان ژورنال: Publications of the Astronomical Society of the Pacific
سال: 2021
ISSN: ['0004-6280', '1538-3873']
DOI: https://doi.org/10.1088/1538-3873/ac24d5