# IQ Catalog (Community Program from March 2013 until August 2013)¶

# Image Quality Catalog # Includes all CP exposures starting March 1, 2013 # (exptype = object, exposure time >= 20 seconds) # # Convention: -99999 indicated missing or unavailable information # # Catalog Fields: # [0] expid int Exposure ID # [1] date-obs str Start of exposure (UTC) # [2] propid str Proposal ID (CP images are included) # [3] program str Program name # [4] guider int Guider status (0: not used,1: used, 2: lost a star, 3: lost all stars) # [5] filter str u, g, r, i, z, or Y # [6] exptime float actual exposure time in seconds # [7] airmass float Airmass # [8] telra float Mount RA position in float degrees # [9] teldec float Mount DEC position in float degrees # [10] ha float Hour Angle (float degrees) # [11] az float Azimuth (float degrees) # [12] zd float Zenith Distance (float degrees) # [13] focus float Hexapod z # [14] aos bool True if AOS data (donuts) available # [15] fadz float Focus&Alignment delta Z # [16] am float Airmass again (same as [6] # [17] domelow float Dome temperature near floor [degrees C] # [18] msurtemp float Average mirror surface temperature [degrees C] # [19] windspd float Wind Speed [km/h] # [20] winddir float Wind Direction (not working) [degrees C] # [21] mairtemp float Air temperature near mirror [degrees C] # [22] gx float guider centroid mean in x (dec) # [23] gy float guider centroid mean in y (RA) # [24] gmaxx float guider max. correction in x (dec) # [25] gmaxy float guider max. correction in y (RA) # [26] gxx float Variance of guider corrections (x) 1/N Sum(x_i -x_mean)^2 # [27] gyy float Variance of guider corrections (y) 1/N Sum(y_i -y_mean)^2 # [28] gxy float cross correlation 1/N Sum((x_i - x_mean)*(y_i -y_mean) # [29] jumpx float Guider jump in x (dec) for which (x_i -x_i-2)^2 + (y_i - y_i-2)^2 is max. # [30] jumpy float Guider jump in y (RA) for which (x_i - x_i-2)^2 + (y_i - y_i-2)^2 is max. # [31] autocorx float Amplitude of first peak in guider auto correlation (x) after zero lag # [32] autocory float Amplitude of first peak in guider auto correlation (y) after zero lag # [33] r50 float r50 from Image Health [arcsec] # [34] fwhm float fwhm from Image Health [arcsec] # [35] whisker float whisker [arsec] # [36] whisker_rms float whisker variation (rms) [arsec] # [37] covxx float flux 2nd moment [arsec2] # [38] covyy float flux 2nd moment [arsec2] # [39] covxy float flux 2nd moment [arsec2] # [40] nstars float Number of stars used by image health # [41] ellipticity float ellipticity from Image Health # [42] angle float whisker angle [rad] # [43] median_data float median background in science array # [44] w1 float w1 whisker component [arsec] # [45] w2 float w2 whisker component [arsec] # [46] dec_mean float Mean declination over entire exposure # [47] dec_mean_f0 float Mean declination when shutter opens # [48] dec_mean_f1 float Mean declination over first second # [49] dec_mean_f2 float Mean declination over first 2 seconds # [50] dec_mean_f20 float Mean declination over first 20 seconds # [51] dec_mean_p1 float Mean declination over 1 second before shutter opens # [52] dec_mean_p2 float Mean declination over 2 seconds before shutter opens # [53] dec_mean_p3 float Mean declination over 3 seconds before shutter opens # [54] dec_mean_p4 float Mean declination over 4 seconds before shutter opens # [55] dec_mean_s20 float Mean declination over seconds 20 seconds # [56] dec_mean_t20 float Mean declination over third 20 seconds # [57] dec_std float RMS/STD declination over entire exposure # [58] dec_std_f0 float RMS/STD declination when shutter opens # [50] dec_std_f1 float RMS/STD declination over first 1 seconds # [60] dec_std_f2 float RMS/STD declination over first 2 seconds # [61] dec_std_f20 float RMS/STD declination over first 20 seconds # [62] dec_std_p1 float RMS/STD declination over 1 second before shutter opens # [63] dec_std_p2 float RMS/STD declination over 2 seconds before shutter opens # [64] dec_std_p3 float RMS/STD declination over 3 seconds before shutter opens # [65] dec_std_p4 float RMS/STD declination over 4 seconds before shutter opens # [66] dec_std_s20 float RMS/STD declination over seconds 20 seconds # [67] dec_std_t20 float RMS/STD declination over third 20 seconds # [68] ha_mean float Mean HA over entire exposure # [69] ha_mean_f0 float Mean HA when shutter opens # [70] ha_mean_f1 float Mean HA over first second # [71] ha_mean_f2 float Mean HA over first 2 seconds # [72] ha_mean_f20 float Mean HA over first 20 seconds # [73] ha_mean_p1 float Mean HA over 1 second before shutter opens # [74] ha_mean_p2 float Mean HA over 2 seconds before shutter opens # [75] ha_mean_p3 float Mean HA over 3 seconds before shutter opens # [76] ha_mean_p4 float Mean HA over 4 seconds before shutter opens # [78] ha_mean_s20 float Mean HA over second 20 seconds # [79] ha_mean_t20 float Mean HA over third 20 seconds # [80] ha_std float RMS/STD HA over entire exposure # [81] ha_std_f0 float RMS/STD HA when shutter opens # [82] ha_std_f1 float RMS/STD HA over first second # [83] ha_std_f2 float RMS/STD HA over first two seconds # [84] ha_std_f20 float RMS/STD HA over first 20 seconds # [85] ha_std_p1 float RMS/STD HA over 1 second before shutter opens # [86] ha_std_p2 float RMS/STD HA over 2 seconds before shutter opens # [87] ha_std_p3 float RMS/STD HA over 3 seconds before shutter opens # [88] ha_std_p4 float RMS/STD HA over 4 seconds before shutter opens # [89] ha_std_s20 float RMS/STD HA over second 20 seconds # [90] ha_std_t20 float RMS/STD HA over third 20 seconds # [91] e1 float e1=xx-yy # [92] e2 float e2=2xy # [93] ellip float sqrt(ellip2) # [94] ellip2 float sqrt(e1^2 + e2^2) # [95] tcs_exptime float exposure time, duplicate from other table entries # [96] ge1 float same as e1 except from raw guider data # [97] ge2 float same as e2 except from raw guider data # [98] gellip float same as ellip except from raw guider data # [99] gellip2 float same as eliip2 except from raw guider data # [100] tcs_gxx float same as xx except from raw guider data # [101] tcs_gxy float same as xy except from raw guider data # [102] tcs_gyy float same as yy except from raw guider data # [103] mjd float modified julian day start time of exposure. # [103] xx float xx moment of TCS HA # [104] xy float xy moment of TCS HA/dec # [105] yy float yy moment of TCS dec # [106] dodx float Donut corrextion (dx) # [107] dody float Donut corrextion (dy) # [108] dodz float Donut corrextion (dz) # [109] doxt float Donut corrextion (xt) # [110] doyt float Donut corrextion (yt) # [111] z5delta float Donut Zernike (Z5 delta) # [112] z5thetax float Donut Zernike (Z5 theta x) # [113] z5thetay float Donut Zernike (Z5 theta x) # [114] z6delta float Donut Zernike (Z6 delta) # [115] z6thetax float Donut Zernike (Z6 theta x) # [116] z6thetay float Donut Zernike (Z6 theta y) # [117] ndonuts int Number of donuts found # [118] dodzerr float Error in dodz #