Abstract
ON May 17, 1972, at 0112 HST a far infrared radiometer cooled by superfluid helium was launched on a rocket from the Kauai Test Range Facility, Kauai, Hawaii. Photometric measurements of the night sky background were successfully made in three spectral regions: 6 to 0.8 mm (bolometer 1), 6 to 0.6 mm (bolometer 2), and 6 to 0.3 mm (bolometer 3). Here we describe the results of this experiment, which yielded a background flux consistent with a 2.7 K blackbody source.
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WILLIAMSON, K., BLAIR, A., CATLIN, L. et al. Night Sky Background Measurement at 6 to 0.3 mm. Nature Physical Science 241, 79–80 (1973). https://doi.org/10.1038/physci241079a0
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DOI: https://doi.org/10.1038/physci241079a0
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