File name: Pandora169s1_Egbert_20211226_L2Fit_fwvt1c16d20210920p1-8.txt File generation date: 20241103T115346.6Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c16p1-8 Local principal investigator: Vitali Fioletov Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 169 Spectrometer number: 1 Processing software version used: BlickP v1.8.60 Instrument operation file used: Pandora169_OF_v3d20200220.txt Instrument calibration file used: Pandora169s1_CF_v16d20210920.txt Level 1 file used: Pandora169s1_Egbert_20211226_L1_smca1c16d20210920p1-8.txt Full location name: Center for Atmospheric Research Experiments (CARE) - Egbert Short location name: Egbert Country of location: Canada Location latitude [deg]: 44.2300 Location longitude [deg]: -79.7800 Location altitude [m]: 251 Local noon date: 20211226 Notes on s-number (L1 configuration): Corrections NOT applied although requested by the s-number are latency correction, matrix method stray light correction (replaced by simple method) Data caveats: None First and last pixel inside fitting window: 1649 1798 Nominal wavelengths inside fitting window [nm]: 492.0971 492.2180 492.3388 492.4597 492.5805 492.7013 492.8221 492.9428 493.0636 493.1843 493.3050 493.4257 493.5464 493.6671 493.7878 493.9084 494.0290 494.1496 494.2702 494.3908 494.5113 494.6319 494.7524 494.8729 494.9934 495.1139 495.2343 495.3548 495.4752 495.5956 495.7160 495.8364 495.9568 496.0771 496.1974 496.3177 496.4380 496.5583 496.6786 496.7988 496.9191 497.0393 497.1595 497.2797 497.3998 497.5200 497.6401 497.7602 497.8803 498.0004 498.1205 498.2405 498.3606 498.4806 498.6006 498.7206 498.8405 498.9605 499.0804 499.2004 499.3203 499.4401 499.5600 499.6799 499.7997 499.9195 500.0393 500.1591 500.2789 500.3987 500.5184 500.6381 500.7578 500.8775 500.9972 501.1169 501.2365 501.3561 501.4757 501.5953 501.7149 501.8345 501.9540 502.0735 502.1930 502.3125 502.4320 502.5515 502.6709 502.7904 502.9098 503.0292 503.1485 503.2679 503.3872 503.5066 503.6259 503.7452 503.8645 503.9837 504.1030 504.2222 504.3414 504.4606 504.5798 504.6990 504.8181 504.9373 505.0564 505.1755 505.2946 505.4136 505.5327 505.6517 505.7707 505.8897 506.0087 506.1277 506.2466 506.3656 506.4845 506.6034 506.7223 506.8412 506.9600 507.0788 507.1977 507.3165 507.4353 507.5540 507.6728 507.7915 507.9102 508.0289 508.1476 508.2663 508.3850 508.5036 508.6222 508.7408 508.8594 508.9780 509.0965 509.2151 509.3336 509.4521 509.5706 509.6891 509.8075 509.9260 --------------------------------------------------------------------------------------- Column 1: Two letter code of measurement routine Column 2: UT date and time for center-time of measurement, yyyymmddThhmmssZ (ISO 8601) Column 3: Fractional days since 1-Jan-2000 midnight for center-time of measurement Column 4: Routine count (1 for the first routine of the day, 2 for the second, etc.) Column 5: Repetition count (1 for the first set in the routine, 2 for the second, etc.) Column 6: Total duration of measurement set in seconds Column 7: Data processing type index Column 8: Solar zenith angle for center-time of measurement in degree Column 9: Solar azimuth for center-time of measurement in degree, 0=north, increases clockwise Column 10: Lunar zenith angle for center-time of measurement in degree Column 11: Lunar azimuth for center-time of measurement in degree, 0=north, increases clockwise Column 12: Pointing zenith angle in degree, absolute or relative (see next column), 999=tracker not used Column 13: Zenith pointing mode: zenith angle is... 0=absolute, 1=relative to sun, 2=relative to moon Column 14: Pointing azimuth in degree, increases clockwise, absolute (0=north) or relative (see next column), 999=tracker not used Column 15: Azimuth pointing mode: like zenith angle mode but also fixed scattering angles relative to sun (3) or moon (4) Column 16: Fitting result index: 0=no error or warning, 1, 2=warning, >2=error Column 17: Number of function evaluations used, 0=linear fitting or fitting not successful or no fitting done Column 18: rms of unweighted fitting residuals, -9=fitting not successful Column 19: Normalized rms of fitting residuals weighted with independent uncertainty, -9=fitting not successful or no uncertainty used Column 20: Expected rms based on independent uncertainty, -9=fitting not successful or no uncertainty given Column 21: Expected normalized weighted rms based on independent uncertainty, -9=fitting not successful or no uncertainty given Column 22: Water vapor slant column amount [moles per square meter], -9e99=fitting not successful Column 23: Independent uncertainty of water vapor slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -5=no independent uncertainty input was given, -9=spectral fitting not successful Column 24: Structured uncertainty of water vapor slant column amount [moles per square meter], -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 25: Common uncertainty of water vapor slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -6=no common uncertainty input was given, -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 26: rms-based uncertainty of water vapor slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no rms-based uncertainty could be retrieved, -9=spectral fitting not successful Column 27: Water vapor effective temperature [K] Column 28: Independent uncertainty of water vapor effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -5=no independent uncertainty input was given, -9=spectral fitting not successful Column 29: Structured uncertainty of water vapor effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -9=spectral fitting not successful Column 30: Common uncertainty of water vapor effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no common uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -6=no common uncertainty input was given, -9=spectral fitting not successful Column 31: Effective water vapor fitting wavelength [nm], -9=fitting not successful Column 32: Diffuse correction applied before fitting at effective fitting wavelength for water vapor [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction Column 33: Nitrogen dioxide slant column amount [moles per square meter], -9e99=fitting not successful Column 34: Independent uncertainty of nitrogen dioxide slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -5=no independent uncertainty input was given, -9=spectral fitting not successful Column 35: Structured uncertainty of nitrogen dioxide slant column amount [moles per square meter], -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 36: Common uncertainty of nitrogen dioxide slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -6=no common uncertainty input was given, -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 37: rms-based uncertainty of nitrogen dioxide slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no rms-based uncertainty could be retrieved, -9=spectral fitting not successful Column 38: Nitrogen dioxide effective temperature [K] Column 39: Independent uncertainty of nitrogen dioxide effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -5=no independent uncertainty input was given, -9=spectral fitting not successful Column 40: Structured uncertainty of nitrogen dioxide effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -9=spectral fitting not successful Column 41: Common uncertainty of nitrogen dioxide effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no common uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -6=no common uncertainty input was given, -9=spectral fitting not successful Column 42: Effective nitrogen dioxide fitting wavelength [nm], -9=fitting not successful Column 43: Diffuse correction applied before fitting at effective fitting wavelength for nitrogen dioxide [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction Column 44: Ozone slant column amount [moles per square meter], -9e99=fitting not successful Column 45: Independent uncertainty of ozone slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -5=no independent uncertainty input was given, -9=spectral fitting not successful Column 46: Structured uncertainty of ozone slant column amount [moles per square meter], -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 47: Common uncertainty of ozone slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -6=no common uncertainty input was given, -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 48: rms-based uncertainty of ozone slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no rms-based uncertainty could be retrieved, -9=spectral fitting not successful Column 49: Ozone effective temperature [K] Column 50: Independent uncertainty of ozone effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -5=no independent uncertainty input was given, -9=spectral fitting not successful Column 51: Structured uncertainty of ozone effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -9=spectral fitting not successful Column 52: Common uncertainty of ozone effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no common uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -6=no common uncertainty input was given, -9=spectral fitting not successful Column 53: Effective ozone fitting wavelength [nm], -9=fitting not successful Column 54: Diffuse correction applied before fitting at effective fitting wavelength for ozone [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction Column 55: Molecular scattering air mass factor used for molecular scattering subtraction before the fitting Column 56: Estimated uncertainty of molecular scattering air mass factor, -9=molecular scattering was not subtracted before the fitting Column 57: Lower limit used for wavelength scaling [nm] Column 58: Upper limit used for wavelength scaling [nm] Column 59: Order of smoothing polynomial Column 60: Smoothing polynomial coefficient, order 0 Column 61: Independent uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 62: Structured uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 63: Common uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 64: rms-based uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 65: Smoothing polynomial coefficient, order 1 Column 66: Independent uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 67: Structured uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 68: Common uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 69: rms-based uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 70: Mean value of measured data inside fitting window [same units as measurements] Column 71: Wavelength change polynomial coefficient, order 0 Column 72: Independent uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 73: Structured uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 74: Common uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 75: rms-based uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 76: L1 based wavelength change coefficient, order 0, -9=no L1 wavelength change determination Column 77: L1 based wavelength change coefficient, order 1, -9=no L1 wavelength change determination Column 78: L2Fit data quality flag: 0=assured high quality, 1=assured medium quality, 2=assured low quality, 10=not-assured high quality, 11=not-assured medium quality, 12=not-assured low quality Column 79: Sum over 2^i using those i, for which the corresponding L2Fit data quality parameter exceeds the DQ1 limit, 0=L1 data quality above 0, 1=Spectral fitting was not successful, 2=Wavelength shift too large, 3=Normalized rms of fitting residuals weighted with independent uncertainty too large Column 80: Sum over 2^i using those i, for which the corresponding L2Fit data quality parameter exceeds the DQ2 limit (same parameters as for DQ1) Column 81: L1 data quality flag: 0=assured high quality, 1=assured medium quality, 2=assured low quality, 10=not-assured high quality, 11=not-assured medium quality, 12=not-assured low quality Column 82: Sum over 2^i using those i, for which the corresponding L1 data quality parameter exceeds the DQ1 limit, 0=Saturated data, 1=Too few dark counts measurements, 2=No temperature given or effective temperature too different from the reference temperature, 3=Dark count too high, 4=Unsuccessful dark background fitting, 5=The dark count differs significantly from the dark map for too many pixels, 6=Absolute value of estimated average residual stray light level too high, 7=Although attempted, no wavelength change could be retrieved, 8=Absolute value of retrieved wavelength shift too large, 9=Retrieved wavelength shift differs too much from the shift predicted by the effective temperature Column 83: Sum over 2^i using those i, for which the corresponding L1 data quality parameter exceeds the DQ2 limit (same parameters as for DQ1) Column 84: Atmospheric variability [%], 999=no atmospheric variability was determined Column 85: Wavelength effective temperature [°C], 999=no effective temperature given Column 86: Estimated average residual stray light level [%] (only valid for stray light correction methods 2 and higher) Column 87: Retrieved wavelength shift from L1 data [nm], -9=no wavelength change determination Column 88: Retrieved total wavelength shift [nm], -9=no wavelength change fitting Column 89: Number of bright count cycles Column 90: Number of dark count cycles Column 91: Effective position of filterwheel #1, 0=filterwheel not used, 1-9 are valid positions Column 92: Effective position of filterwheel #2, 0=filterwheel not used, 1-9 are valid positions Column 93: Sum over 2^i, 0=spectra were interpolated in time, 1=spectra are corrected for off-target signal Column 94: Integration time [ms] Column 95: Temperature at electronics board [°C], 999=no temperature signal Column 96: Spectrometer control temperature [°C], 999=no temperature signal Column 97: Auxiliary spectrometer temperature [°C], 999=no temperature signal Column 98: Temperature in head sensor [°C], 999=no temperature signal Column 99: Humidity in head sensor [%], -9=no humidity signal Column 100: Pressure in head sensor [hPa], -9=no pressure signal Columns 101-250: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 251-400: Normalized slant column residuals weighted with independent instrumental uncertainty for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting, 0=no independent instrumental uncertainty was given --------------------------------------------------------------------------------------- SQ 20211226T170553.9Z 8030.712429 418 1 17.80 2 67.64 176.52 88.12 272.86 0.00 1 0.00 1 0 15 2.608e-03 2.608e-03 8.504e-04 8.491e-04 1.048228e+03 4.769403e+01 8.450256e+01 -6.000000e+00 1.424921e+02 272.27 -2.00 20.00 -2.00 505.26 0.00e+00 3.058091e-04 2.297521e-05 1.765201e-05 -6.000000e+00 7.205535e-05 272.27 -2.00 20.00 -2.00 500.48 0.00e+00 9.098155e-02 1.689583e-02 8.023867e-03 -6.000000e+00 5.227655e-02 222.51 -2.00 3.58 -2.00 502.07 0.00e+00 2.608 0.000 489.00 513.00 1 6.3464e+00 1.2929e-03 3.7020e-03 -6.0000e+00 4.0014e-03 1.5407e-02 3.3307e-04 2.7879e-04 -6.0000e+00 1.0316e-03 2.3724e-03 1.2111e-03 9.1709e-05 1.3752e-05 -6.0000e+00 2.8831e-04 7.4867e-03 1.0979e-04 12 1 1 12 1 1 99.96 22.70 1.40 0.00749 0.01589 14 9 1 4 0 1174.600 26.41 19.98 22.70 6.47 33.3 941.05 -335 -260 62 106 95 472 613 380 433 188 121 -33 -239 -195 -365 -388 -89 155 219 -20 29 188 235 281 417 250 178 185 -313 -463 -249 -238 53 156 144 -2 -183 -23 -160 -148 -85 -31 137 278 162 134 126 79 -29 -343 -504 -667 -695 -497 -224 -160 -243 -55 -65 154 59 364 214 470 422 248 -72 -60 -40 -280 -221 7 -5 56 12 -144 -253 -296 -215 -341 -371 -278 -215 -222 -189 -109 -13 -49 39 -50 330 257 256 258 207 15 -15 -20 -288 -597 -289 -208 -197 -55 -318 -333 -327 -289 -59 -52 -41 2 160 93 325 244 718 421 433 158 183 96 138 238 82 -52 106 192 138 242 -26 -85 -322 -300 -146 41 176 -97 30 210 -24 326 378 330 170 21 -65 -340 -390 -227 -331 -258 63 108 98 492 645 402 455 196 124 -34 -245 -197 -370 -397 -91 162 227 -21 30 197 247 295 438 262 185 192 -319 -462 -252 -238 54 161 151 -2 -190 -23 -163 -150 -87 -32 141 289 170 140 130 81 -29 -341 -499 -651 -678 -492 -223 -163 -245 -56 -66 155 60 369 218 475 422 250 -72 -59 -38 -270 -217 7 -4 55 11 -141 -244 -288 -208 -330 -362 -267 -208 -216 -186 -108 -13 -48 38 -49 326 258 258 261 206 15 -15 -19 -278 -571 -277 -199 -190 -54 -319 -334 -323 -283 -58 -52 -41 2 160 94 329 249 728 426 433 156 182 94 135 235 81 -50 104 189 136 236 -26 -81 -305 -288 -138 39 171 -94 29 207 -24 325 370 325 167 21 -63 -331 -375 -218 SQ 20211226T171510.2Z 8030.718868 422 1 48.43 2 67.58 178.82 89.75 274.40 0.00 1 0.00 1 0 15 2.832e-03 2.834e-03 9.303e-04 9.289e-04 1.013483e+03 5.221549e+01 7.608210e+01 -6.000000e+00 1.547307e+02 272.27 -2.00 20.00 -2.00 505.26 0.00e+00 2.724378e-04 2.512540e-05 1.640956e-05 -6.000000e+00 7.824197e-05 272.27 -2.00 20.00 -2.00 500.47 0.00e+00 8.849166e-02 1.848957e-02 8.935498e-03 -6.000000e+00 5.677655e-02 222.51 -2.00 3.58 -2.00 502.06 0.00e+00 2.600 0.000 489.00 513.00 1 7.5675e+00 1.4152e-03 3.7007e-03 -6.0000e+00 4.3457e-03 1.3878e-02 3.6438e-04 2.8483e-04 -6.0000e+00 1.1207e-03 7.0089e-04 1.5408e-03 1.0025e-04 1.2078e-05 -6.0000e+00 3.1314e-04 7.8933e-03 9.2694e-05 11 1 0 11 32 0 99.90 22.67 1.33 0.00789 0.01858 13 3 1 4 0 3724.640 26.41 19.98 22.67 6.41 33.6 941.34 -350 -56 -149 215 325 423 555 583 342 226 106 -184 -276 -199 -194 -379 208 133 241 -241 30 347 209 538 415 321 273 27 -242 -582 -477 -480 -334 240 20 159 -146 -128 -234 -16 -202 -131 101 54 267 264 -40 57 29 -453 -244 -798 -717 -362 -303 -133 -93 79 273 14 288 498 428 296 300 200 230 -77 -69 -344 -125 -287 203 -293 -42 -296 -368 -386 -299 -528 -474 -435 155 -263 -260 82 -92 78 -87 -53 70 158 256 143 49 205 -174 -64 -199 -307 -503 -343 83 -64 -266 -270 -203 -291 -130 123 49 59 142 321 254 513 379 395 407 136 469 -45 45 -9 105 351 30 180 324 -37 16 -264 -286 -367 -63 -62 29 -160 69 231 95 126 378 295 360 -81 -82 -150 -122 -274 -343 -56 -150 220 335 441 582 611 357 235 109 -189 -281 -201 -196 -385 213 138 252 -253 32 364 219 566 436 336 285 28 -247 -588 -479 -486 -342 248 21 166 -152 -132 -241 -16 -207 -135 105 57 278 274 -41 58 29 -453 -240 -780 -700 -356 -302 -134 -95 80 277 14 292 507 436 300 302 200 228 -75 -68 -336 -121 -281 199 -289 -42 -291 -358 -372 -288 -508 -457 -421 151 -257 -255 81 -90 77 -86 -52 70 158 257 144 49 202 -170 -61 -190 -291 -478 -329 81 -63 -265 -269 -201 -286 -127 121 49 59 142 322 256 518 383 398 407 135 462 -44 44 -9 103 344 30 176 316 -36 15 -254 -273 -349 -60 -59 28 -156 68 228 94 125 375 293 357 -80 -79 -144 -117 -262