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Refraction and Sightline (metrol.REF)

Corrections applied to observations taken near the horizon.

February 2026

1. [1] arghXiv:2602.06104 [pdf]

   Calibration of a Differential Refraction Comparator for Contested Horizon Observations

   E. Kuiper

   2 pages, 1 table. Instrument drawings deposited with the Society. Sixth in the series. Subjects: Instrumentation (metrol.INST) (primary class); Refraction and Sightline (metrol.REF); Calibration and Uncertainty (metrol.CAL); History of the Field (meta.HIST)