OBSERVER:                 Sykes, Chamberlain
INSTRUMENT:               MIRSI
LOCATION:                 IRTF
OBJECT NAME:              Vesta_28may
REDUCED IMAGE FILENAME:   b0256.fits
OBSERVATION DATE:         05/28/2007
OBSERVATION TIME:         12:41:10
FILTER WAVELENGTH:        11.6 microns
AIRMASS:                  1.44056
INNER SKY RADIUS:         20 pixels
OUTER SKY RADIUS:         30 pixels
PIXELS IN SKY ANNULUS:    1576
SKY MODE:                 321.63171
SKY STANDARD DEVIATION:   13808.6
SKY SKEW:                 0
TOTAL INTEGRATION TIME:  20.0692 sec
FWHM:                     4.0555 pixels
                  
Aperture   Aperture               c/s     Instrument  Magnitude
 radius     pixels     CTS/sec    Error   Magnitude     Error
---------|----------|----------|---------|----------|----------|
 1         3        356400     1228      -1.3798     0.00861
 2        13       1144839     2460      -2.6468     0.00537
 3        28       1849496     3704      -3.1676     0.00500
 4        50       2300066     4967      -3.4043     0.00539
 5        79       2610664     6258      -3.5418     0.00599
 6       113       2864308     7585      -3.6425     0.00661
 7       154       3043696     8952      -3.7085     0.00735
 8       201       3149478     10368      -3.7456     0.00822
 9       254       3213784     11836      -3.7675     0.00920
 10       314       3256740     13362      -3.7819     0.01025
 11       380       3286492     14951      -3.7918     0.01137
 12       452       3310290     16607      -3.7996     0.01254
 13       531       3328140     18335      -3.8055     0.01377
 14       616       3338529     20139      -3.8088     0.01508
 15       707       3343936     22020      -3.8106     0.01646