OBSERVER:                 Sykes, Chamberlain
INSTRUMENT:               MIRSI
LOCATION:                 IRTF
OBJECT NAME:              Vesta_27may
REDUCED IMAGE FILENAME:   b0227.fits
OBSERVATION DATE:         05/27/2007
OBSERVATION TIME:         12:13:26
FILTER WAVELENGTH:        11.6 microns
AIRMASS:                  1.32499
INNER SKY RADIUS:         20 pixels
OUTER SKY RADIUS:         30 pixels
PIXELS IN SKY ANNULUS:    1576
SKY MODE:                 611.21819
SKY STANDARD DEVIATION:   18544.7
SKY SKEW:                 0
TOTAL INTEGRATION TIME:  20.0692 sec
FWHM:                     4.03803 pixels
                  
Aperture   Aperture               c/s     Instrument  Magnitude
 radius     pixels     CTS/sec    Error   Magnitude     Error
---------|----------|----------|---------|----------|----------|
 1         3        376739     1645      -1.4401     0.01091
 2        13       1207276     3298      -2.7045     0.00682
 3        28       1947383     4967      -3.2236     0.00637
 4        50       2413910     6664      -3.4568     0.00690
 5        79       2720059     8399      -3.5864     0.00771
 6       113       2963257     10181      -3.6794     0.00858
 7       154       3134676     12018      -3.7404     0.00958
 8       201       3230329     13919      -3.7731     0.01077
 9       254       3282412     15891      -3.7904     0.01210
 10       314       3321016     17941      -3.8031     0.01350
 11       380       3357349     20076      -3.8149     0.01494
 12       452       3391853     22301      -3.8260     0.01643
 13       531       3418280     24622      -3.8345     0.01800
 14       616       3433321     27043      -3.8392     0.01969
 15       707       3442273     29571      -3.8421     0.02147