File name: Pandora21s1_Bremen_20210103_L2Fit_fout2c12d20201116p1-8.txt File generation date: 20250430T191932.2Z Data description: Level 2 spectral fitting results file Data file version: fout2c12p1-8 Local principal investigator: Tom Hanisco Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 21 Spectrometer number: 1 Processing software version used: BlickP v1.8.75 Instrument operation file used: Pandora21_OF_v4d20190904.txt Instrument calibration file used: Pandora21s1_CF_v12d20201116.txt Level 1 file used: Pandora21s1_Bremen_20210103_L1_smca1c12d20201116p1-8.txt Full location name: Bremen University Short location name: Bremen Country of location: Germany Location latitude [deg]: 53.0813 Location longitude [deg]: 8.8126 Location altitude [m]: 50 Local noon date: 20210103 Notes on s-number (L1 configuration): Corrections NOT applied although requested by the s-number are dark map for dark correction (replaced by immediate dark method), latency correction, matrix method stray light correction (replaced by simple method) Data caveats: None First and last pixel inside fitting window: 286 428 Nominal wavelengths inside fitting window [nm]: 305.0633 305.2039 305.3445 305.4851 305.6257 305.7662 305.9068 306.0473 306.1878 306.3283 306.4688 306.6093 306.7497 306.8902 307.0306 307.1711 307.3115 307.4519 307.5923 307.7326 307.8730 308.0134 308.1537 308.2940 308.4343 308.5747 308.7149 308.8552 308.9955 309.1357 309.2760 309.4162 309.5564 309.6966 309.8368 309.9770 310.1172 310.2573 310.3975 310.5376 310.6777 310.8178 310.9579 311.0980 311.2380 311.3781 311.5181 311.6582 311.7982 311.9382 312.0782 312.2182 312.3581 312.4981 312.6380 312.7779 312.9179 313.0578 313.1976 313.3375 313.4774 313.6172 313.7571 313.8969 314.0367 314.1765 314.3163 314.4561 314.5959 314.7356 314.8754 315.0151 315.1548 315.2945 315.4342 315.5739 315.7135 315.8532 315.9928 316.1325 316.2721 316.4117 316.5513 316.6908 316.8304 316.9700 317.1095 317.2490 317.3885 317.5280 317.6675 317.8070 317.9465 318.0859 318.2254 318.3648 318.5042 318.6436 318.7830 318.9224 319.0617 319.2011 319.3404 319.4798 319.6191 319.7584 319.8977 320.0369 320.1762 320.3155 320.4547 320.5939 320.7331 320.8723 321.0115 321.1507 321.2899 321.4290 321.5682 321.7073 321.8464 321.9855 322.1246 322.2637 322.4028 322.5418 322.6808 322.8199 322.9589 323.0979 323.2369 323.3759 323.5148 323.6538 323.7927 323.9317 324.0706 324.2095 324.3484 324.4872 324.6261 324.7650 324.9038 --------------------------------------------------------------------------------------- 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: Ozone slant column amount [moles per square meter], -9e99=fitting not successful Column 23: 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 24: 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 25: 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 26: 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 27: Ozone effective temperature [K] Column 28: 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 29: 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 30: 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 31: Effective ozone fitting wavelength [nm], -9=fitting not successful Column 32: 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 33: Sulfur dioxide slant column amount [moles per square meter], -9e99=fitting not successful Column 34: Independent uncertainty of sulfur 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 sulfur 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 sulfur 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 sulfur 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: Sulfur dioxide effective temperature [K] Column 39: Independent uncertainty of sulfur 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 sulfur 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 sulfur 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 sulfur dioxide fitting wavelength [nm], -9=fitting not successful Column 43: Diffuse correction applied before fitting at effective fitting wavelength for sulfur dioxide [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction Column 44: Molecular scattering air mass factor used for molecular scattering subtraction before the fitting Column 45: Estimated uncertainty of molecular scattering air mass factor, -9=molecular scattering was not subtracted before the fitting Column 46: Lower limit used for wavelength scaling [nm] Column 47: Upper limit used for wavelength scaling [nm] Column 48: Order of smoothing polynomial Column 49: Smoothing polynomial coefficient, order 0 Column 50: Independent uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 51: Structured uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 52: Common uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 53: rms-based uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 54: Smoothing polynomial coefficient, order 1 Column 55: Independent uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 56: Structured uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 57: Common uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 58: rms-based uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 59: Smoothing polynomial coefficient, order 2 Column 60: Independent uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 61: Structured uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 62: Common uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 63: rms-based uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 64: Smoothing polynomial coefficient, order 3 Column 65: Independent uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 66: Structured uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 67: Common uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 68: rms-based uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 69: Mean value of measured data inside fitting window [same units as measurements] Column 70: Wavelength change polynomial coefficient, order 0 Column 71: Independent uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 72: Structured uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 73: Common uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 74: rms-based uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 75: L1 based wavelength change coefficient, order 0, -9=no L1 wavelength change determination Column 76: L1 based wavelength change coefficient, order 1, -9=no L1 wavelength change determination Column 77: 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 78: 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 79: 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 80: 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 81: 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 82: 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 83: Atmospheric variability [%], 999=no atmospheric variability was determined Column 84: Wavelength effective temperature [°C], 999=no effective temperature given Column 85: Estimated average residual stray light level [%] (only valid for stray light correction methods 2 and higher) Column 86: Retrieved wavelength shift from L1 data [nm], -9=no wavelength change determination Column 87: Retrieved total wavelength shift [nm], -9=no wavelength change fitting Column 88: Number of bright count cycles Column 89: Number of dark count cycles Column 90: Effective position of filterwheel #1, 0=filterwheel not used, 1-9 are valid positions Column 91: Effective position of filterwheel #2, 0=filterwheel not used, 1-9 are valid positions Column 92: Sum over 2^i, 0=spectra were interpolated in time, 1=spectra are corrected for off-target signal Column 93: Integration time [ms] Column 94: Temperature at electronics board [°C], 999=no temperature signal Column 95: Spectrometer control temperature [°C], 999=no temperature signal Column 96: Auxiliary spectrometer temperature [°C], 999=no temperature signal Column 97: Temperature in head sensor [°C], 999=no temperature signal Column 98: Humidity in head sensor [%], -9=no humidity signal Column 99: Pressure in head sensor [hPa], -9=no pressure signal Columns 100-242: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 243-385: 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 --------------------------------------------------------------------------------------- SS 20210103T110956.9Z 7673.465242 399 1 49.80 2 75.97 175.39 96.56 302.65 0.00 1 0.00 1 0 25 1.514e-01 5.801e-03 7.971e-02 2.137e-03 5.453714e-01 1.116815e-03 6.943479e-03 -6.000000e+00 8.783509e-02 220.83 -2.00 3.88 -2.00 320.44 0.00e+00 7.274840e-04 3.630806e-04 4.262084e-04 -6.000000e+00 3.626525e-03 266.44 -2.00 20.00 -2.00 320.13 0.00e+00 4.036 0.001 302.00 328.00 3 2.5389e+00 3.1798e-03 5.0036e-02 -6.0000e+00 2.1636e-01 6.7182e-02 3.9489e-03 3.0754e-02 -6.0000e+00 2.3629e-01 -3.5028e-02 4.1036e-03 1.6707e-02 -6.0000e+00 1.3961e-01 3.7120e-03 2.1560e-03 5.4363e-03 -6.0000e+00 5.8723e-02 4.1666e-04 -7.4619e-04 6.6875e-05 6.9480e-05 -6.0000e+00 4.5375e-03 1.1335e-04 4.5833e-05 10 0 0 10 0 0 87.28 22.01 0.25 0.00011 -0.00549 117 23 1 5 0 425.543 25.17 19.99 22.01 11.05 21.8 1000.40 31644 -81449 40642 -72082 19844 -44764 10315 -366 -49024 -5206 -75304 44572 -40397 11786 -25103 6051 -6569 -3011 3803 -21747 2330 -11658 19081 -4537 8547 -5335 -3607 -3512 -6552 -2755 -4459 6929 -6737 3693 -5822 7016 -6237 -1334 -378 -3909 2125 -3664 947 -3153 3233 -2913 1959 -1944 204 3074 -671 3001 737 2203 -1206 2705 -576 694 233 1634 1774 43 2968 -78 1265 440 2028 -183 1313 651 -66 457 -372 659 -721 1541 -1252 931 -199 -1042 -847 -1627 -920 -1438 -385 -1365 -100 -298 174 92 705 1179 558 1506 245 1504 560 946 -695 -120 -152 -531 469 -406 -608 -1196 -383 -442 148 -394 -301 -70 -159 94 -26 837 150 314 -317 -240 -644 100 -96 -238 433 182 1077 654 656 47 253 85 30 320 -60 -115 -89 140 -388 -39 -243 -99 44 155 -1252 224 -1051 124 -491 75 -3 -728 -58 -1687 385 -863 198 -659 145 -188 -91 116 -898 78 -456 609 -187 335 -254 -172 -163 -309 -131 -244 394 -470 262 -424 476 -495 -119 -41 -515 297 -587 152 -540 526 -511 332 -349 37 573 -141 674 185 588 -353 794 -179 214 71 483 537 14 1070 -30 509 176 777 -73 555 312 -35 255 -209 351 -360 720 -556 398 -93 -534 -502 -1100 -678 -1136 -320 -1221 -94 -287 167 86 614 951 429 1151 205 1403 572 1086 -881 -154 -186 -596 506 -436 -654 -1375 -460 -564 203 -595 -473 -116 -264 151 -39 1258 224 482 -490 -388 -1060 160 -149 -374 649 262 1485 915 993 75 444 160 58 657 -124 -254 -203 322 -901 -87 -526 -213 91 SS 20210103T112026.1Z 7673.472524 402 1 50.21 2 75.88 177.88 97.85 304.75 0.00 1 0.00 1 0 25 9.670e-02 4.409e-03 5.238e-02 1.700e-03 5.432947e-01 8.877953e-04 6.958883e-03 -6.000000e+00 5.610106e-02 220.83 -2.00 3.88 -2.00 320.42 0.00e+00 6.793426e-04 2.891181e-04 4.322323e-04 -6.000000e+00 2.316591e-03 266.44 -2.00 20.00 -2.00 320.12 0.00e+00 4.011 0.001 302.00 328.00 3 2.1629e+00 2.5335e-03 4.9880e-02 -6.0000e+00 1.3819e-01 5.2150e-02 3.1425e-03 3.0817e-02 -6.0000e+00 1.5093e-01 -1.7718e-02 3.2808e-03 1.6646e-02 -6.0000e+00 8.9171e-02 -5.0030e-03 1.7232e-03 5.3717e-03 -6.0000e+00 3.7503e-02 6.2548e-04 -7.6243e-04 5.2976e-05 7.1695e-05 -6.0000e+00 2.8986e-03 6.0878e-04 2.5350e-05 10 0 0 10 0 0 96.41 22.01 0.18 0.00061 -0.00512 174 34 1 5 0 285.244 25.17 19.99 22.01 11.22 21.8 1000.92 -3620 -33691 -6144 -29379 -48566 -37838 -52834 -17217 -38835 1197 -26389 2128 -18631 -18684 -16926 -3600 11108 -8605 -593 -561 7034 -10708 -5044 1900 -1536 -1569 -5020 -1986 -5537 5043 -2124 2573 -2660 1365 -1480 -2435 3379 -1870 2383 -498 -423 -2367 -440 -1218 -1273 967 -297 363 -1343 2645 275 1630 -11 1086 771 46 217 -679 938 245 805 1274 1712 691 77 -41 585 414 99 840 -542 493 -5 -427 -2 323 504 74 -195 -486 -269 -1422 -1124 -1179 -924 -583 -323 186 41 494 596 1460 908 1216 775 530 757 276 -306 -340 -178 -430 838 84 -580 -821 -531 -280 -211 -123 -226 -145 -125 -63 225 692 569 219 -79 -588 -492 -264 -55 -307 178 30 878 833 575 355 -100 106 29 264 -128 -120 121 110 -319 -215 -94 2 33 -25 -335 -53 -292 -551 -381 -667 -173 -550 12 -384 26 -315 -394 -429 -94 280 -270 -18 -18 221 -408 -190 72 -66 -71 -240 -90 -256 220 -113 152 -188 98 -109 -181 257 -166 246 -63 -60 -371 -71 -203 -215 162 -51 63 -246 493 57 370 -3 292 220 14 67 -212 282 73 246 419 626 281 33 -17 240 173 45 400 -289 273 -3 -229 -1 153 220 32 -91 -262 -157 -955 -825 -925 -770 -515 -300 178 39 456 517 1169 693 927 641 497 809 316 -382 -431 -214 -475 896 89 -653 -985 -633 -353 -286 -183 -369 -236 -205 -106 354 1029 836 332 -127 -991 -840 -439 -88 -477 264 43 1201 1151 863 592 -174 195 56 532 -275 -258 269 248 -726 -479 -210 4 68 SS 20210103T112653.1Z 7673.477003 406 1 50.11 2 75.86 179.41 98.63 306.05 0.00 1 0.00 1 0 25 7.625e-02 4.347e-03 4.674e-02 1.474e-03 5.435144e-01 7.731248e-04 6.952444e-03 -6.000000e+00 4.423761e-02 220.83 -2.00 3.88 -2.00 320.42 0.00e+00 1.488395e-03 2.510741e-04 4.300875e-04 -6.000000e+00 1.826658e-03 266.44 -2.00 20.00 -2.00 320.12 0.00e+00 4.005 0.001 302.00 328.00 3 1.8874e+00 2.1953e-03 4.9807e-02 -6.0000e+00 1.0897e-01 5.3578e-02 2.7301e-03 3.0778e-02 -6.0000e+00 1.1901e-01 -2.1652e-02 2.8664e-03 1.6723e-02 -6.0000e+00 7.0314e-02 -1.9088e-03 1.5051e-03 5.4434e-03 -6.0000e+00 2.9573e-02 8.2574e-04 -8.7671e-04 4.5842e-05 7.1535e-05 -6.0000e+00 2.2856e-03 4.4341e-04 2.8637e-05 10 0 0 10 0 0 94.98 22.01 0.20 0.00044 -0.00614 236 46 1 5 0 209.633 25.17 19.99 22.01 11.42 21.9 1001.95 -38580 -5173 -38823 -587 -26724 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-754 -781 -545 -483 55 110 185 684 631 881 920 960 452 926 454 -235 -284 -286 -282 288 102 -1022 -656 -1091 -403 -239 -4 -369 -261 -204 -38 312 878 925 435 23 -1021 -1083 -193 -289 -258 205 282 1220 1509 827 211 114 97 145 382 -323 -333 -22 18 -441 -357 13 -98 34