You are in: Instruments > NIR > Photometric Standards > Search  
nir logo

Photometric Standard Search

Search for photometric standards close to the specified RA and Dec. Note that if you are using NIRI at JHK with the f/6 camera (0.12 arcsec/pixel scale), then standards fainter than 11th magnitude should be used. The NIRI OT library includes observations of suitable JHKLM standards, with appropriate exposure times.

1. RA:     (e.g. 00:42:44)

2. Dec:     (e.g. 41:16:09)

3. Catalogs:   UKIRT     Persson

4. Observation Duration:   hrs

5. Maximum Distance:   degrees

6. Output Sorting:   RA   Distance   Magnitude


NOTES:
1,2. Target coordinates should be J2000 and in sexagesimal format.
3. UKIRT = JHK observations of faint standard stars in the Mauna Kea Observatories NIR photometric system, Leggett et al., 2006, MNRAS, in press.
    Persson = A New System of Faint NIR Standard Stars, Persson, et al., 1998, AJ, 116, 2475.
4. If observation duration > 0, return two sets of standards, one for before and one for after the science target.
5. Maximum distance for acceptable standards.

[Science Operations home] [NIRI home]


2007 Februrary 8 - Andrew Stephens