WPHot Outfile Files and & Description (June 08, 2011) [pht06 WSDC D-I196] Interface Name: WPHot Interface for V4 Processing Type of Interface: program i/o Written By: WISE Photometry System (WPHot) __________ T. Jarrett & K. Marsh Read By: SLW, TE Description: Version 4 of WPHOT, including single-frameset processing by WPRO and WAPPco. ______________________________________________________________________________________________ Specification of output variables: Table Header information: -- # sources tabulated -- frames engaged (either single band or 4-band mode) -- zero point mag used -- standard aperture radius in arcsec and pixel units -- circular aperture radii in arcsec and pixel units -- header keywords Tabular data: cols Name Description Units Type Format ---- ---- ----------------------------------------------- ------- ---- -------- 0 source_id source name -- char a24 1 src source ID counter -- int i7 2 ra right ascension (J2000) deg R*8 f12.7 3 dec declination (J2000) deg R*8 f12.7 4 sigra uncertainty in RA (arcsec) asec R*4 f9.6 5 sigdec uncertainty in DEC (arcsec) asec R*4 f9.6 6 sigraddec uncertainty cross-term (arcsec) asec R*4 f9.6 # the following pixel positions depend on the mode of processing: # single frame processing: positions reflect the source xy position in the WISE frames # multi-frame processing: positions reflect the source xy position in the WISE "coadd" mosaic 7 w1x x-pixel coordinate, band-1, frame-1 pix R*4 f9.3 8 w1y y-pixel coordinate, band-1, frame-1 pix R*4 f9.3 9 w2x x-pixel coordinate, band-2, frame-1 pix R*4 f9.3 10 w2y y-pixel coordinate, band-2, frame-1 pix R*4 f9.3 11 w3x x-pixel coordinate, band-3, frame-1 pix R*4 f9.3 12 w3y y-pixel coordinate, band-3, frame-1 pix R*4 f9.3 13 w4x x-pixel coordinate, band-4, frame-1 pix R*4 f9.3 14 w4y y-pixel coordinate, band-4, frame-1 pix R*4 f9.3 # The next set of columns are aperture/annulus measurements from the frames: 15 w1sky frame sky background value, band-1 dn R*4 f9.3 16 w1sigsk frame sky background value uncertainty, band-1 dn R*4 f8.3 17 w1conf frame sky confusion based on the UNC images dn R*4 f8.3 18 w2sky frame sky background value, band-1 dn R*4 f9.3 19 w2sigsk frame sky background value uncertainty, band-2 dn R*4 f8.3 20 w2conf frame sky confusion based on the UNC images dn R*4 f8.3 21 w3sky frame sky background value, band-1 dn R*4 f9.3 22 w3sigsk frame sky background value uncertainty, band-3 dn R*4 f8.3 23 w3conf frame sky confusion based on the UNC images dn R*4 f8.3 24 w4sky frame sky background value, band-1 dn R*4 f9.3 25 w4sigsk frame sky background value uncertainty, band-4 dn R*4 f8.3 26 w4conf frame sky confusion based on the UNC images dn R*4 f8.3 # WPRO frame measurements: 27 w1snr S/N ratio, band-1 dn R*4 f7.1 28 w2snr S/N ratio, band-2 dn R*4 f7.1 29 w3snr S/N ratio, band-3 dn R*4 f7.1 30 w4snr S/N ratio, band-4 dn R*4 f7.1 31 w1flux WPRO raw flux, band-1 dn R*4 1pe12.4 32 w1sigflux WPRO raw flux uncertainty, band-1 dn R*4 1pe12.4 33 w2flux WPRO raw flux, band-2 dn R*4 1pe12.4 34 w2sigflux WPRO raw flux uncertainty, band-2 dn R*4 1pe12.4 35 w3flux WPRO raw flux, band-3 dn R*4 1pe12.4 36 w3sigflux WPRO raw flux uncertainty, band-3 dn R*4 1pe12.4 37 w4flux WPRO raw flux, band-4 dn R*4 1pe12.4 38 w4sigflux WPRO raw flux uncertainty, band-4 dn R*4 1pe12.4 39 w1mpro WPRO flux in mag units, band-1 mag R*4 f7.3 40 w1sigmpro WPRO flux uncertainty in mag units, band-1 mag R*4 f7.3 41 w1rchi2 WPRO reduced chi^2, band-1 -- R*4 1pe11.3 42 w2mpro WPRO flux in mag units, band-2 mag R*4 f7.3 43 w2sigmpro WPRO flux uncertainty in mag units, band-2 mag R*4 f7.3 44 w2rchi2 WPRO reduced chi^2, band-2 -- R*4 1pe11.3 45 w3mpro WPRO flux in mag units, band-3 mag R*4 f7.3 46 w3sigmpro WPRO flux uncertainty in mag units, band-3 mag R*4 f7.3 47 w3rchi2 WPRO reduced chi^2, band-3 -- R*4 1pe11.3 48 w4mpro WPRO flux in mag units, band-4 mag R*4 f7.3 49 w4sigmpro WPRO flux uncertainty in mag units, band-4 mag R*4 f7.3 50 w4rchi2 WPRO reduced chi^2, band-4 -- R*4 1pe11.3 51 rchi2 reduced chi squared, total -- R*4 1pe11.3 52 nb number of blend components used in each fit -- int i4 53 na active deblend flag (=1 if actively deblended) -- int i4 54 w1frTr fraction of pixels classified as transient, band-1 -- R*4 f8.5 55 w2frTr fraction of pixels classified as transient, band-2 -- R*4 f8.5 56 w3frTr fraction of pixels classified as transient, band-3 -- R*4 f8.5 57 w4frTr fraction of pixels classified as transient, band-4 -- R*4 f8.5 58 w1Sat fraction of pixels saturated, band-1 -- R*4 f8.5 59 w2Sat fraction of pixels saturated, band-2 -- R*4 f8.5 60 w3Sat fraction of pixels saturated, band-3 -- R*4 f8.5 61 w4Sat fraction of pixels saturated, band-4 -- R*4 f8.5 # Note about the SatNum flag: four-character string, where # each character represents the band and the value represents the # minimum sample (up the ramp) at which saturation occurs # e.g., "2400" == W1 saturates at the 2nd sample, W2 at the 4th # sample, and W3/W4 do not saturate 62 SatNum minimum sample at which saturation occurs -- char a4 # coadd measurements: WAPPco, standard aperture w/ aperture correction; # the standard (aperture corrected) aperture radius is 8.25 arcsec for W1, W2 and W3, # and 16.5 arcsec for W4. 63 w1mag standard aperture mag w/ correction applied mag R*4 f7.3 64 w1sigm standard aperture mag uncertainty, band-1 mag R*4 f7.3 65 w1flg standard aperture flag, band-1 -- int i3 66 w1Cov mean coverage depth, band-1 -- R*4 f7.3 67 w1mcor aperture correction, band-1 mag R*4 f7.3 68 w2mag standard aperture mag w/ correction applied mag R*4 f7.3 69 w2sigm standard aperture mag uncertainty, band-2 mag R*4 f7.3 70 w2flg standard aperture flag, band-2 -- int i3 71 w2Cov mean coverage depth, band-2 -- R*4 f7.3 72 w2mcor aperture correction, band-2 mag R*4 f7.3 73 w3mag standard aperture mag w/ correction applied mag R*4 f7.3 74 w3sigm standard aperture mag uncertainty, band-3 mag R*4 f7.3 75 w3flg standard aperture flag, band-3 -- int i3 76 w3Cov mean coverage depth, band-3 -- R*4 f7.3 77 w3mcor aperture correction, band-3 mag R*4 f7.3 78 w4mag standard aperture mag w/ correction applied mag R*4 f7.3 79 w4sigm standard aperture mag uncertainty, band-4 mag R*4 f7.3 80 w4flg standard aperture flag, band-4 -- int i3 81 w4Cov mean coverage depth, band-4 -- R*4 f7.3 82 w4mcor aperture correction, band-4 mag R*4 f7.3 # coadd measurements: WAPPco, circular apertures, no aperture correction is applied; # radii: 5.50 8.25 11.00 13.75 16.50 19.25 22.00 24.75 arcsec for W1, W2, W3 # radii: 11.00 16.50 22.00 27.50 33.00 38.50 44.00 49.50 arcsec for W4 83 w1mag_1 Aper 1, aperture mag, band-1 mag R*4 f7.3 84 w1sigm_1 Aper 1, aperture mag uncertainty, band-1 mag R*4 f7.3 85 w1flg_1 Aper 1, aperture flag, band-1 -- int i3 86 w2mag_1 Aper 1, aperture mag, band-2 mag R*4 f7.3 87 w2sigm_1 Aper 1, aperture mag uncertainty, band-2 mag R*4 f7.3 88 w2flg_1 Aper 1, aperture flag, band-2 -- int i3 89 w3mag_1 Aper 1, aperture mag, band-3 mag R*4 f7.3 90 w3sigm_1 Aper 1, aperture mag uncertainty, band-3 mag R*4 f7.3 91 w3flg_1 Aper 1, aperture flag, band-3 -- int i3 92 w4mag_1 Aper 1, aperture mag, band-4 mag R*4 f7.3 93 w4sigm_1 Aper 1, aperture mag uncertainty, band-4 mag R*4 f7.3 94 w4flg_1 Aper 1, aperture flag, band-4 -- int i3 95 w1mag_2 Aper 2, aperture mag, band-1 mag R*4 f7.3 96 w1sigm_2 Aper 2, aperture mag uncertainty, band-1 mag R*4 f7.3 97 w1flg_2 Aper 2, aperture flag, band-1 -- int i3 98 w2mag_2 Aper 2, aperture mag, band-2 mag R*4 f7.3 99 w2sigm_2 Aper 2, aperture mag uncertainty, band-2 mag R*4 f7.3 100 w2flg_2 Aper 2, aperture flag, band-2 -- int i3 101 w3mag_2 Aper 2, aperture mag, band-3 mag R*4 f7.3 102 w3sigm_2 Aper 2, aperture mag uncertainty, band-3 mag R*4 f7.3 103 w3flg_2 Aper 2, aperture flag, band-3 -- int i3 104 w4mag_2 Aper 2, aperture mag, band-4 mag R*4 f7.3 105 w4sigm_2 Aper 2, aperture mag uncertainty, band-4 mag R*4 f7.3 106 w4flg_2 Aper 2, aperture flag, band-4 -- int i3 107 w1mag_3 Aper 3, aperture mag, band-1 mag R*4 f7.3 108 w1sigm_3 Aper 3, aperture mag uncertainty, band-1 mag R*4 f7.3 109 w1flg_3 Aper 3, aperture flag, band-1 -- int i3 110 w2mag_3 Aper 3, aperture mag, band-2 mag R*4 f7.3 111 w2sigm_3 Aper 3, aperture mag uncertainty, band-2 mag R*4 f7.3 112 w2flg_3 Aper 3, aperture flag, band-2 -- int i3 113 w3mag_3 Aper 3, aperture mag, band-3 mag R*4 f7.3 114 w3sigm_3 Aper 3, aperture mag uncertainty, band-3 mag R*4 f7.3 115 w3flg_3 Aper 3, aperture flag, band-3 -- int i3 116 w4mag_3 Aper 3, aperture mag, band-4 mag R*4 f7.3 117 w4sigm_3 Aper 3, aperture mag uncertainty, band-4 mag R*4 f7.3 118 w4flg_3 Aper 3, aperture flag, band-4 -- int i3 119 w1mag_4 Aper 4, aperture mag, band-1 mag R*4 f7.3 120 w1sigm_4 Aper 4, aperture mag uncertainty, band-1 mag R*4 f7.3 121 w1flg_4 Aper 4, aperture flag, band-1 -- int i3 122 w2mag_4 Aper 4, aperture mag, band-2 mag R*4 f7.3 123 w2sigm_4 Aper 4, aperture mag uncertainty, band-2 mag R*4 f7.3 124 w2flg_4 Aper 4, aperture flag, band-2 -- int i3 125 w3mag_4 Aper 4, aperture mag, band-3 mag R*4 f7.3 126 w3sigm_4 Aper 4, aperture mag uncertainty, band-3 mag R*4 f7.3 127 w3flg_4 Aper 4, aperture flag, band-3 -- int i3 128 w4mag_4 Aper 4, aperture mag, band-4 mag R*4 f7.3 129 w4sigm_4 Aper 4, aperture mag uncertainty, band-4 mag R*4 f7.3 130 w4flg_4 Aper 4, aperture flag, band-4 -- int i3 131 w1mag_5 Aper 5, aperture mag, band-1 mag R*4 f7.3 132 w1sigm_5 Aper 5, aperture mag uncertainty, band-1 mag R*4 f7.3 133 w1flg_5 Aper 5, aperture flag, band-1 -- int i3 134 w2mag_5 Aper 5, aperture mag, band-2 mag R*4 f7.3 135 w2sigm_5 Aper 5, aperture mag uncertainty, band-2 mag R*4 f7.3 136 w2flg_5 Aper 5, aperture flag, band-2 -- int i3 137 w3mag_5 Aper 5, aperture mag, band-3 mag R*4 f7.3 138 w3sigm_5 Aper 5, aperture mag uncertainty, band-3 mag R*4 f7.3 139 w3flg_5 Aper 5, aperture flag, band-3 -- int i3 140 w4mag_5 Aper 5, aperture mag, band-4 mag R*4 f7.3 141 w4sigm_5 Aper 5, aperture mag uncertainty, band-4 mag R*4 f7.3 142 w4flg_5 Aper 5, aperture flag, band-4 -- int i3 143 w1mag_6 Aper 6, aperture mag, band-1 mag R*4 f7.3 144 w1sigm_6 Aper 6, aperture mag uncertainty, band-1 mag R*4 f7.3 145 w1flg_6 Aper 6, aperture flag, band-1 -- int i3 146 w2mag_6 Aper 6, aperture mag, band-2 mag R*4 f7.3 147 w2sigm_6 Aper 6, aperture mag uncertainty, band-2 mag R*4 f7.3 148 w2flg_6 Aper 6, aperture flag, band-2 -- int i3 149 w3mag_6 Aper 6, aperture mag, band-3 mag R*4 f7.3 150 w3sigm_6 Aper 6, aperture mag uncertainty, band-3 mag R*4 f7.3 151 w3flg_6 Aper 6, aperture flag, band-3 -- int i3 152 w4mag_6 Aper 6, aperture mag, band-4 mag R*4 f7.3 153 w4sigm_6 Aper 6, aperture mag uncertainty, band-4 mag R*4 f7.3 154 w4flg_6 Aper 6, aperture flag, band-4 -- int i3 155 w1mag_7 Aper 7, aperture mag, band-1 mag R*4 f7.3 156 w1sigm_7 Aper 7, aperture mag uncertainty, band-1 mag R*4 f7.3 157 w1flg_7 Aper 7, aperture flag, band-1 -- int i3 158 w2mag_7 Aper 7, aperture mag, band-2 mag R*4 f7.3 159 w2sigm_7 Aper 7, aperture mag uncertainty, band-2 mag R*4 f7.3 160 w2flg_7 Aper 7, aperture flag, band-2 -- int i3 161 w3mag_7 Aper 7, aperture mag, band-3 mag R*4 f7.3 162 w3sigm_7 Aper 7, aperture mag uncertainty, band-3 mag R*4 f7.3 163 w3flg_7 Aper 7, aperture flag, band-3 -- int i3 164 w4mag_7 Aper 7, aperture mag, band-4 mag R*4 f7.3 165 w4sigm_7 Aper 7, aperture mag uncertainty, band-4 mag R*4 f7.3 166 w4flg_7 Aper 7, aperture flag, band-4 -- int i3 167 w1mag_8 Aper 8, aperture mag, band-1 mag R*4 f7.3 168 w1sigm_8 Aper 8, aperture mag uncertainty, band-1 mag R*4 f7.3 169 w1flg_8 Aper 8, aperture flag, band-1 -- int i3 170 w2mag_8 Aper 8, aperture mag, band-2 mag R*4 f7.3 171 w2sigm_8 Aper 8, aperture mag uncertainty, band-2 mag R*4 f7.3 172 w2flg_8 Aper 8, aperture flag, band-2 -- int i3 173 w3mag_8 Aper 8, aperture mag, band-3 mag R*4 f7.3 174 w3sigm_8 Aper 8, aperture mag uncertainty, band-3 mag R*4 f7.3 175 w3flg_8 Aper 8, aperture flag, band-3 -- int i3 176 w4mag_8 Aper 8, aperture mag, band-4 mag R*4 f7.3 177 w4sigm_8 Aper 8, aperture mag uncertainty, band-4 mag R*4 f7.3 178 w4flg_8 Aper 8, aperture flag, band-4 -- int i3 # the following are "N of M" counters for WPRO measurements (multiframe only) # w?M - The number of individual frames for band ? that are available to make a profile-fit measurement. # w?NM - The number of individual frames for band ? on which WPRO extracted a flux measurement that has snr>3. # w?mLQ -- variability indicator mLogQ for the flux array 179 w1NM WPRO, N (of M), band-1 -- int i6 180 w1M WPRO, M , band-1 -- int i6 181 w1magP WPRO repeatability mag; band-1 mag R*4 f7.3 182 w1sigP1 WPRO RMS mag sample sigma; band-1 mag R*4 f7.3 183 w1sigP2 WPRO RMS mag uncertainty of the mean; band-1 mag R*4 f7.3 184 w1Dmag Difference between max and min mag; band-1 mag R*4 f7.3 185 w1Ndf No. degrees of freedom in var chi-square; band-1 -- int i6 186 w1mLQ -log10(Q), Q = 1-P(chi-square); band-1 -- int i4 187 w1mJDmin minimum mJD; band-1 -- R*8 f17.8 188 w1mJDmax maximum mJD; band-1 -- R*8 f17.8 189 w1mJDmean mean mJD; band-1 -- R*8 f17.8 190 w2NM WPRO, N (of M), band-2 -- int i6 191 w2M WPRO, M , band-2 -- int i6 192 w2magP WPRO repeatability mag; band-2 mag R*4 f7.3 193 w2sigP1 WPRO RMS mag sample sigma; band-2 mag R*4 f7.3 194 w2sigP2 WPRO RMS mag uncertainty of the mean; band-2 mag R*4 f7.3 195 w2Dmag Difference between max and min mag; band-2 mag R*4 f7.3 196 w2Ndf No. degrees of freedom in var chi-square; band-2 -- int i6 197 w2mLQ -log10(Q), Q = 1-P(chi-square); band-2 -- int i4 198 w2mJDmin minimum mJD; band-2 -- R*8 f17.8 199 w2mJDmax maximum mJD; band-2 -- R*8 f17.8 200 w2mJDmean mean mJD; band-2 -- R*8 f17.8 201 w3NM WPRO, N (of M), band-3 -- int i6 202 w3M WPRO, M , band-3 -- int i6 203 w3magP WPRO repeatability mag; band-3 mag R*4 f7.3 204 w3sigP1 WPRO RMS mag sample sigma; band-3 mag R*4 f7.3 205 w3sigP2 WPRO RMS mag uncertainty of the mean; band-3 mag R*4 f7.3 206 w3Dmag Difference between max and min mag; band-3 mag R*4 f7.3 207 w3Ndf No. degrees of freedom in var chi-square; band-3 -- int i6 208 w3mLQ -log10(Q), Q = 1-P(chi-square); band-3 -- int i4 209 w3mJDmin minimum mJD; band-3 -- R*8 f17.8 210 w3mJDmax maximum mJD; band-3 -- R*8 f17.8 211 w3mJDmean mean mJD; band-3 -- R*8 f17.8 212 w4NM WPRO, N (of M), band-4 -- int i6 213 w4M WPRO, M , band-4 -- int i6 214 w4magP WPRO repeatability mag; band-4 mag R*4 f7.3 215 w4sigP1 WPRO RMS mag sample sigma; band-4 mag R*4 f7.3 216 w4sigP2 WPRO RMS mag uncertainty of the mean; band-4 mag R*4 f7.3 217 w4Dmag Difference between max and min mag; band-4 mag R*4 f7.3 218 w4Ndf No. degrees of freedom in var chi-square; band-4 -- int i6 219 w4mLQ -log10(Q), Q = 1-P(chi-square); band-4 -- int i4 220 w4mJDmin minimum mJD; band-4 -- R*8 f17.8 221 w4mJDmax maximum mJD; band-4 -- R*8 f17.8 222 w4mJDmean mean mJD; band-4 -- R*8 f17.8 ##### band-to-band sample correlation coefficients and their probabilities for adjacent bands 223 rho12 W1W2 correlation coefficient % int i4 224 rho23 W2W3 correlation coefficient % int i4 225 rho34 W3W4 correlation coefficient % int i4 226 q12 -log10(1-P(rho12)) given no real correlation % int i4 227 q23 -log10(1-P(rho23)) given no real correlation % int i4 228 q34 -log10(1-P(rho34)) given no real correlation % int i4 # Galaxy photometry (if any) # The aperture is based on # the 2MASS XSC characterization of the source, with a small correction # that accounts for the resolution difference between WISE and 2MASS. # The elliptical aperture size and shape are specified in the mdex # output (see below). # You can read more about the resolved galaxy measurements here: http://wise2.ipac.caltech.edu/proj/jarrett/WXSC.html 229 XSCprox distance between source center and XSC galaxy asec R*4 f8.2 230 w1Rsemi semi-major axis, band-1 asec R*4 f8.2 231 w1ba axis ratio, band-1 -- R*4 f7.2 232 w1pa position angle (E of N), band-1 deg R*4 f8.2 233 w1Gmag elliptical aperture mag, band-1 mag R*4 f7.3 234 w1Gerr aperture mag uncertainty, band-1 mag R*4 f7.3 235 w1Gflg aperture flag, band-1 -- int i3 236 w2Rsemi semi-major axis, band-2 asec R*4 f8.2 237 w2ba axis ratio, band-2 -- R*4 f7.2 238 w2pa position angle (E of N), band-2 deg R*4 f8.2 239 w2Gmag elliptical aperture mag, band-2 mag R*4 f7.3 240 w2Gerr aperture mag uncertainty, band-2 mag R*4 f7.3 241 w2Gflg aperture flag, band-2 -- int i3 242 w3Rsemi semi-major axis, band-3 asec R*4 f8.2 243 w3ba axis ratio, band-3 -- R*4 f7.2 244 w3pa position angle (E of N), band-3 deg R*4 f8.2 245 w3Gmag elliptical aperture mag, band-3 mag R*4 f7.3 246 w3Gerr aperture mag uncertainty, band-3 mag R*4 f7.3 247 w3Gflg aperture flag, band-3 -- int i3 248 w4Rsemi semi-major axis, band-4 asec R*4 f8.2 249 w4ba axis ratio, band-4 -- R*4 f7.2 250 w4pa position angle (E of N), band-4 deg R*4 f8.2 251 w4Gmag elliptical aperture mag, band-4 mag R*4 f7.3 252 w4Gerr aperture mag uncertainty, band-4 mag R*4 f7.3 253 w4Gflg aperture flag, band-4 -- int i3 ______________________________________________________________________________________________ N of M Statistics M == number of flux measurements for a given source N == number of M sources that have SNR >= 3 ______________________________________________________________________________________________ Photometry Flags: Standard aperture measurement quality flag. This flag indicates if one or more image pixels in the measurement aperture for this band is confused with nearby objects, is contaminated by saturated or otherwise ususable pixels, or is an upper limit. The flag value is the integer sum of any of following values which correspond to different conditions. value Condition ----- ------------------------------------------------------ 0 nominal -- no contamination 1 source confusion -- another source falls within the measurement aperture 2 bad or fatal pixels: presence of bad pixels in the measurement aperture (bit 2 or 18 set) 4 non-zero bit flag tripped (other than 2 or 18) 8 corruption -- all pixels are flagged as unusable, or the aperture flux is negative; in the former case, the aperture magnitude is NULL; in the latter case, the aperture magnitude is a 95% confidence upper limit 16 saturation -- here are one or more saturated pixels in the measurement aperture 32 upper limit -- the magnitude is a 95% confidence upper limit combinations: 3 source confusion + bad pixels 5 source confusion + non-zero bit flag 6 bad pixels + non-zero bit flag 7 source confusion + bad pixels + non-zero bit flag 9 source confusion + corruption 10 bad pixels + corruption 11 source confusion + bad pixels + corruption 12 non-zero bit flag + corruption 13 source confusion + non-zero bit flag + corruption 14 bad pixels + non-zero bit flag + corruption 15 source confusion + bad pixels + non-zero bit flag + corruption 17 source confusion + saturation 18 bad pixels + saturation 19 source confusion + bad pixels + saturation 20 non-zero bit flag + saturation 21 source confusion + non-zero bit flag + saturation 22 bad pixels + non-zero bit flag + saturation 23 source confusion + bad pixels + non-zero bit flag + saturation 24 corruption + saturation 25 source confusion + corruption + saturation 26 bad pixels + corruption + saturation 27 source confusion + bad pixels + corruption + saturation 28 non-zero bit flag + corruption + saturation 29 source confusion + non-zero bit flag + corruption + saturation 30 bad pixels + non-zero bit flag + corruption + saturation 31 source confusion + bad pixels + non-zero bit flag + corruption + saturation ______________________________________________________________________________________________ Note about upper limits: threshold = 2 * RMS if ( f < threshold) then if (f < 0) then upper_limit = threshold else upper_limit = f + threshold where f is the flux of the source, RMS is the source flux uncertainty The upper limit is reported in the WPRO and standard aperture MAG columns; the reported uncertainty is set to 9.99 mag. ______________________________________________________________________________________________ Note: Null values are now indicated by the character string "null"