Fig. 6 from The Two Micron All Sky Survey (2MASS)

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The Two Micron All Sky Survey (2MASS)

Authors: M. F. Skrutskie, R. M. Cutri, R. Stiening, M. D. Weinberg, S. Schneider, J. M. Carpenter, C. Beichman, R. Capps, T. Chester, J. Elias, J. Huchra, J. Liebert, C. Lonsdale, D. G. Monet, S. Price, P. Seitzer, T. Jarrett, J. D. Kirkpatrick, J. E. Gizis, E. Howard, T. Evans, J. Fowler, L. Fullmer, R. Hurt, R. Light, E. L. Kopan, K. A. Marsh, H. L. McCallon, R. Tam, S. Van Dyk, and S. Wheelock

Skrutskie et al. 2006 The Astronomical Journal 131 1163.

Provider: AAS Journals

Caption: Fig. 6.

Achieved mean nightly J (blue), H (green), and K_s (red) ﹩\mathrm{S}\,/ \mathrm{N}\,=10﹩ sensitivity levels in magnitudes vs. time for the two 2MASS observatories. This sensitivity is calculated from the statistics of repeated observations of stars in each set of hourly calibration observations. The solid horizontal lines represent the survey’s ﹩\mathrm{S}\,/ \mathrm{N}\,=10﹩ sensitivity requirement in each band: ﹩J=15.8﹩, ﹩H=15.1﹩, and ﹩K_{s}=14.3﹩.

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