OBSERVER:                 Sykes, Chamberlain
INSTRUMENT:               MIRSI
LOCATION:                 IRTF
OBJECT NAME:              Vesta_26may
REDUCED IMAGE FILENAME:   b0143.fits
OBSERVATION DATE:         05/26/2007
OBSERVATION TIME:         10:27:47
FILTER WAVELENGTH:        11.6 microns
AIRMASS:                  1.20684
INNER SKY RADIUS:         20 pixels
OUTER SKY RADIUS:         30 pixels
PIXELS IN SKY ANNULUS:    1576
SKY MODE:                 -552.85176
SKY STANDARD DEVIATION:   16837.7
SKY SKEW:                 0.0912632
TOTAL INTEGRATION TIME:  20.0692 sec
FWHM:                     3.77904 pixels
                  
Aperture   Aperture               c/s     Instrument  Magnitude
 radius     pixels     CTS/sec    Error   Magnitude     Error
---------|----------|----------|---------|----------|----------|
 1         3        420265     1496      -1.5588     0.00889
 2        13       1312197     2997      -2.795     0.00570
 3        28       2037856     4512      -3.2729     0.00553
 4        50       2444313     6052      -3.4703     0.00619
 5        79       2720749     7627      -3.5867     0.00700
 6       113       2955730     9245      -3.6766     0.00781
 7       154       3110932     10913      -3.7322     0.00876
 8       201       3189416     12639      -3.7592     0.00990
 9       254       3233727     14429      -3.7742     0.01115
 10       314       3265125     16290      -3.7847     0.01247
 11       380       3292485     18228      -3.7938     0.01384
 12       452       3321977     20249      -3.8034     0.01523
 13       531       3349652     22356      -3.8125     0.01668
 14       616       3372419     24555      -3.8198     0.01820
 15       707       3391229     26849      -3.8258     0.01979