OBSERVER:                 Sykes, Chamberlain
INSTRUMENT:               MIRSI
LOCATION:                 IRTF
OBJECT NAME:              Vesta_26may
REDUCED IMAGE FILENAME:   b0176.fits
OBSERVATION DATE:         05/26/2007
OBSERVATION TIME:         11:04:11
FILTER WAVELENGTH:        11.6 microns
AIRMASS:                  1.20766
INNER SKY RADIUS:         20 pixels
OUTER SKY RADIUS:         30 pixels
PIXELS IN SKY ANNULUS:    1576
SKY MODE:                 -5072.0073
SKY STANDARD DEVIATION:   13046.1
SKY SKEW:                 0.617472
TOTAL INTEGRATION TIME:  20.0692 sec
FWHM:                     3.96622 pixels
                  
Aperture   Aperture               c/s     Instrument  Magnitude
 radius     pixels     CTS/sec    Error   Magnitude     Error
---------|----------|----------|---------|----------|----------|
 1         3        325786     1160      -1.2823     0.00890
 2        13       1040012     2325      -2.5426     0.00558
 3        28       1675449     3499      -3.0603     0.00522
 4        50       2106572     4693      -3.3089     0.00556
 5        79       2459334     5913      -3.4770     0.00601
 6       113       2766710     7167      -3.6049     0.00647
 7       154       2996346     8459      -3.6914     0.00705
 8       201       3160596     9796      -3.7494     0.00774
 9       254       3288074     11183      -3.7923     0.00850
 10       314       3382873     12625      -3.8232     0.00932
 11       380       3451934     14126      -3.8451     0.01023
 12       452       3510446     15691      -3.8634     0.01117
 13       531       3565888     17324      -3.8804     0.01214
 14       616       3619944     19027      -3.8967     0.01314
 15       707       3674351     20805      -3.9129     0.01415