OBSERVER:                 Sykes, Chamberlain
INSTRUMENT:               MIRSI
LOCATION:                 IRTF
OBJECT NAME:              Vesta_26may
REDUCED IMAGE FILENAME:   b0169.fits
OBSERVATION DATE:         05/26/2007
OBSERVATION TIME:         10:55:21
FILTER WAVELENGTH:        11.6 microns
AIRMASS:                  1.20438
INNER SKY RADIUS:         20 pixels
OUTER SKY RADIUS:         30 pixels
PIXELS IN SKY ANNULUS:    1576
SKY MODE:                 67.917838
SKY STANDARD DEVIATION:   1699.25
SKY SKEW:                 0
TOTAL INTEGRATION TIME:  4.1104 sec
FWHM:                     4.33922 pixels
                  
Aperture   Aperture               c/s     Instrument  Magnitude
 radius     pixels     CTS/sec    Error   Magnitude     Error
---------|----------|----------|---------|----------|----------|
 1         3        274777      778      -1.0974     0.00707
 2        13        899610     1544      -2.3851     0.00429
 3        28       1503088     2299      -2.9424     0.00382
 4        50       1941760     3056      -3.2204     0.00393
 5        79       2266343     3827      -3.3883     0.00422
 6       113       2533317     4619      -3.5092     0.00455
 7       154       2745554     5436      -3.5965     0.00494
 8       201       2900067     6281      -3.6560     0.00541
 9       254       3005257     7158      -3.6947     0.00595
 10       314       3074568     8071      -3.7194     0.00656
 11       380       3123228     9022      -3.7365     0.00722
 12       452       3161515     10014      -3.7497     0.00791
 13       531       3190915     11049      -3.7597     0.00865
 14       616       3210754     12130      -3.7665     0.00944
 15       707       3221885     13258      -3.7702     0.01028