OBSERVER:                 Sykes, Chamberlain
INSTRUMENT:               MIRSI
LOCATION:                 IRTF
OBJECT NAME:              Vesta_27may
REDUCED IMAGE FILENAME:   b0226.fits
OBSERVATION DATE:         05/27/2007
OBSERVATION TIME:         12:12:30
FILTER WAVELENGTH:        11.6 microns
AIRMASS:                  1.3224
INNER SKY RADIUS:         20 pixels
OUTER SKY RADIUS:         30 pixels
PIXELS IN SKY ANNULUS:    1576
SKY MODE:                 -258.11927
SKY STANDARD DEVIATION:   18666.5
SKY SKEW:                 0
TOTAL INTEGRATION TIME:  20.0692 sec
FWHM:                     3.78122 pixels
                  
Aperture   Aperture               c/s     Instrument  Magnitude
 radius     pixels     CTS/sec    Error   Magnitude     Error
---------|----------|----------|---------|----------|----------|
 1         3        451209     1657      -1.6359     0.00918
 2        13       1405431     3321      -2.8695     0.00590
 3        28       2185265     5001      -3.3487     0.00572
 4        50       2615776     6708      -3.544     0.00641
 5        79       2886601     8454      -3.6509     0.00732
 6       113       3097344     10248      -3.7274     0.00827
 7       154       3223644     12097      -3.7708     0.00938
 8       201       3276383     14010      -3.7884     0.01069
 9       254       3298532     15995      -3.7958     0.01212
 10       314       3315035     18059      -3.8012     0.01361
 11       380       3337227     20207      -3.8084     0.01513
 12       452       3362420     22447      -3.8166     0.01668
 13       531       3377862     24783      -3.8216     0.01834
 14       616       3379898     27221      -3.8222     0.02013
 15       707       3376110     29765      -3.8210     0.02204