OBSERVER:                 Sykes, Chamberlain
INSTRUMENT:               MIRSI
LOCATION:                 IRTF
OBJECT NAME:              Vesta_28may
REDUCED IMAGE FILENAME:   b0044.fits
OBSERVATION DATE:         05/28/2007
OBSERVATION TIME:         08:25:01
FILTER WAVELENGTH:        11.6 microns
AIRMASS:                  1.45043
INNER SKY RADIUS:         20 pixels
OUTER SKY RADIUS:         30 pixels
PIXELS IN SKY ANNULUS:    1576
SKY MODE:                 -36.503779
SKY STANDARD DEVIATION:   12506.1
SKY SKEW:                 0
TOTAL INTEGRATION TIME:  20.0692 sec
FWHM:                     4.30833 pixels
                  
Aperture   Aperture               c/s     Instrument  Magnitude
 radius     pixels     CTS/sec    Error   Magnitude     Error
---------|----------|----------|---------|----------|----------|
 1         3        288375     1112      -1.1498     0.00964
 2        13        944970     2228      -2.4385     0.00589
 3        28       1590578     3355      -3.0038     0.00527
 4        50       2070530     4499      -3.2902     0.00543
 5        79       2428816     5669      -3.4634     0.00583
 6       113       2705826     6871      -3.5807     0.00634
 7       154       2904632     8109      -3.6577     0.00697
 8       201       3040812     9391      -3.7074     0.00772
 9       254       3132741     10720      -3.7398     0.00855
 10       314       3189717     12102      -3.7593     0.00948
 11       380       3222706     13542      -3.7705     0.01050
 12       452       3244211     15042      -3.7777     0.01159
 13       531       3259761     16607      -3.7829     0.01273
 14       616       3271124     18240      -3.7867     0.01394
 15       707       3279810     19944      -3.7896     0.01520