IRAC/MIPS Saturation Recovery:
Performance

T. Jarrett
Jan 28, 2008

*Most of the testing & parameter tuning derives from BCDs that are part of SAGE and GLIMPSE. Thanks to Remy Indebetouw for providing much of the data.

IRAC BCDs

Aperture Radius = 12", with background annulus 14-22", the appropriate aperture correction is 1.0.

channel link to
result		 x y ra
(deg)		 dec
(deg)		 replacement radius
(arcsec)		 Pratio Fratio aperture radius
(arcsec)		 flux (raw)
(mJy)		 flux (model)
(mJy)		 flux (rectified)
(mJy)		 comment
1 gif 219.60 201.27 76.54868 -70.60155 5.35 0.147 0.186 12.00 102.74 552.69 552.07 --
1 gif 28.11 183.04 76.39025 -70.56302 4.46 0.183 0.192 12.00 66.43 344.28 345.31 --
1 gif 49.95 32.11 274.10849 -16.66563 9.94 0.002 0.053 12.00 12790.79 241918.00 241981.25 ---
1 gif 51.01 151.55 274.10864 -16.66538 9.24 0.003 0.056 12.00 13676.86 243867.00 243816.22 ---
1 gif 240.12 87.84 274.21017 -16.59661 5.82 0.016 0.126 12.00 3625.66 28803.15 28812.52 ---
1 gif 241.06 208.48 274.21039 -16.59640 5.35 0.020 0.131 12.00 3872.19 29642.30 29624.01 ---
1 gif 182.70 70.18 274.71323 -16.59349 5.35 0.041 0.181 12.00 2153.37 11887.56 11894.51 ---
1 gif 182.36 190.42 274.71335 -16.59326 5.35 0.042 0.196 12.00 2239.08 11399.64 11403.91 ---
2 gif 103.68 11.62 274.34637 -16.52377 5.32 0.150 0.394 12.00 2124.36 5295.30 5385.20 ---
2 gif 104.65 132.72 274.34656 -16.52362 5.32 0.132 0.407 12.00 2038.61 4927.09 5009.46 ---
2 gif 185.05 239.54 274.55215 -16.48712 5.32 0.265 0.535 12.00 1585.11 2964.69 2960.62 ---
2 gif 184.99 119.44 274.55222 -16.48726 5.32 0.223 0.481 12.00 1468.33 3060.36 3051.00 ---
2 gif 156.60 178.51 76.15271 -70.60529 5.32 0.073 0.199 12.00 47.48 238.91 238.29 ---
2 gif 89.73 27.57 82.69123 -70.91884 5.32 0.082 0.170 12.00 58.57 343.57 343.76 ---
2 gif 89.96 27.57 82.69143 -70.91874 5.32 0.192 0.591 12.00 198.64 335.52 336.02 ---
3 gif 43.80 31.77 274.10828 -16.66567 5.82 0.043 0.170 12.00 30119.89 174614.00 176833.72 ---
3 gif 44.20 152.61 274.10840 -16.66565 6.88 0.041 0.160 12.00 27028.96 166182.75 168580.16 ---
3 gif 233.45 90.07 274.21011 -16.59675 3.82 0.310 0.496 12.00 9919.23 19795.25 19990.97 ---
3 gif 233.05 210.06 274.21030 -16.59677 5.35 0.308 0.545 12.00 10713.25 19587.93 19674.04 ---
3 gif 169.80 91.50 274.25430 -16.61667 6.88 0.511 0.749 12.00 4741.49 6336.27 6332.06 ---
3 gif 175.95 71.55 274.71320 -16.59337 3.06 1.018 0.870 12.00 4060.82 4656.73 4665.43 ---
3 gif 175.49 191.54 274.71335 -16.59336 3.82 0.606 0.909 12.00 4117.46 4557.08 4528.32 ---
3 gif 159.60 173.53 73.70963 -71.75313 5.35 0.333 0.402 12.00 171.24 426.11 426.42 ---
3 gif 109.86 113.34 83.81373 -71.13748 6.88 0.315 0.188 12.00 563.27 3002.88 3001.32 ---
3 gif 153.11 136.24 83.90313 -72.90901 6.88 0.085 0.136 12.00 205.98 1514.36 1513.72 double star
4 gif 170.45 12.47 274.21854 -16.50663 2.68 1.087 0.824 12.00 1832.31 2300.20 2223.37 saturated?
4 gif 103.79 10.18 274.34622 -16.52375 5.33 0.686 0.624 12.00 2009.50 3101.33 3219.49 high background; saturated?
4 gif 103.28 131.34 274.34653 -16.52368 5.33 0.595 0.511 12.00 1777.96 3431.75 3477.72 high background; saturated?
4 gif 82.44 125.16 72.51611 -69.67350 5.39 0.427 0.624 12.00 315.68 500.58 505.51 ---
4 gif 66.70 208.68 72.83669 -68.06954 3.81 0.600 0.522 12.00 277.65 544.19 531.90 ---
4 gif 169.68 236.53 72.90418 -68.09513 5.33 0.464 0.436 12.00 326.24 749.95 748.95 ---
4 gif 138.91 100.86 86.95018 -72.70203 8.38 0.225 0.535 12.00 801.92 1499.88 1499.48 ---
4 gif 150.04 101.32 86.95087 -72.70222 5.33 0.221 0.340 12.00 513.09 1495.22 1510.57 ---

MIPS 24um BCDs

Aperture Radius = 13", with background annulus 20-32", the appropriate aperture correction is 1.17. The following fluxes do not have aperture corrections applied.

source link to
result		 x y ra
(deg)		 dec
(deg)		 replacement radius
(arcsec)		 Pratio Fratio aperture radius
(arcsec)		 flux (raw)
(mJy)		 flux (model)
(mJy)		 flux (rectified)
(mJy)		 comment
Mira gif 80.8952.3634.83713-2.9781630.320.002 0.00013.00 0.00 2576610.75 2576610.75 uber bright!
Mira gif 80.3669.9134.83697-2.9781830.330.002 0.00013.00 0.00 2478555.50 2478555.50 uber bright!
NGC6552 gif 84.04 69.91 270.02917 66.61504 7.80 0.826 0.89213.00 661.02 764.93 741.45 unresolved galaxy; not saturated
star gif 26.75 23.47 128.63736 -43.40961 9.10 0.978 0.877 13.00 1517.85 1749.34 1731.69 probably not saturated
star gif 32.99 90.17 128.67973 -43.44632 7.80 0.709 0.981 13.00 652.13 655.75 664.79 probably not saturated

MIPS 24um Mosaics

MIPSGAL provides a wealth of 24um data to test saturation recovery. The following results come from plate MG3010n005_024, using the BCD PSF that Sean Carey modified to work with coadds. Aperture Radius = 13", with background annulus 20-32", the appropriate aperture correction is unknown.

source link to
result		 x y ra
(deg)		 dec
(deg)		 replacement radius
(arcsec)		 Pratio Fratio aperture radius
(arcsec)		 flux (raw)
(mJy)		 flux (model)
(mJy)		 flux (rectified)
(mJy)		 comment
1 gif 54.93 653.29 187.31575 -63.58912 6.25 0.073 0.355 13.00 15880.78 47233.76 44692.54 ---
1 gif 443.93 2673.16 187.74368 -62.90130 6.87 0.203 0.473 13.00 8711.82 18864.16 18429.66 ---
1 gif 1188.15 2376.77 188.29333 -63.02355 12.50 0.013 0.018 13.00 4680.06 261393.67 261153.19 fuzzy star; HII region; the fit is rather poor
1 gif 1698.90 1002.04 188.61435 -63.51165 7.03 0.300 0.569 13.00 5727.60 10148.80 10066.61 ---
1 gif 1775.76 2941.54 188.76926 -62.84115 6.25 0.254 0.503 13.00 8259.58 16545.91 16432.62 ---
1 gif 3012.93 2518.67 189.69408 -63.01199 12.50 0.024 0.094 13.00 15123.09 162103.77 161564.66 fuzzy star; HII region; the fit is rather poor