(1) smallest change in a quantity being measured that causes a perceptible change in the corresponding indication
(2) the least angular/linear/temporal/spectral distance between two identical point sources of radiation that can be distinguished according to a given criterion,
(1) VIM/ISO:99 [RD18]; (2) NIST [RD15]; (3) MACC [RD13]
RD15: Prokhorov, A. V., R. U. Datla, V. P. Zakharenkov, V. Privalsky, T. W. Humpherys, and V. I. Sapritsky, Spaceborne Optoelectronic Sensors and their Radiometric Calibration. Terms and Definitions. Part 1. Calibration Techniques, Ed. by A. C. Parr and L. K. Issaev, NIST Technical Note NISTIR 7203, March 2005
RD13: MACC II Service Validation Protocol, Deliverable D153.1, May 2013
Need something about resolution of an imaging instrument and to distinguish spectral, spatial and temporal resolutions.
Probably need multiple separate types of resolution