File name: Pandora162s1_Brussels-Uccle_20200903_L2Fit_fout2c2d20200831p1-8.txt File generation date: 20250630T091851.2Z Data description: Level 2 spectral fitting results file Data file version: fout2c2p1-8 Local principal investigator: C. Hermans Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 162 Spectrometer number: 1 Processing software version used: BlickP v1.8.75 Instrument operation file used: Pandora162_OF_v5d20191031.txt Instrument calibration file used: Pandora162s1_CF_v2d20200831.txt Level 1 file used: Pandora162s1_Brussels-Uccle_20200903_L1_smca1c2d20200831p1-8.txt Full location name: Uccle (BIRA-IASB, KMI-IRM) Short location name: Brussels-Uccle Country of location: Belgium Location latitude [deg]: 50.7980 Location longitude [deg]: 4.3580 Location altitude [m]: 107 Local noon date: 20200903 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: 225 367 Nominal wavelengths inside fitting window [nm]: 305.1175 305.2584 305.3992 305.5400 305.6808 305.8216 305.9624 306.1032 306.2440 306.3847 306.5254 306.6662 306.8069 306.9476 307.0883 307.2289 307.3696 307.5102 307.6509 307.7915 307.9321 308.0727 308.2133 308.3539 308.4944 308.6350 308.7755 308.9161 309.0566 309.1971 309.3376 309.4780 309.6185 309.7590 309.8994 310.0398 310.1803 310.3207 310.4610 310.6014 310.7418 310.8821 311.0225 311.1628 311.3031 311.4434 311.5837 311.7240 311.8643 312.0045 312.1448 312.2850 312.4252 312.5655 312.7056 312.8458 312.9860 313.1262 313.2663 313.4064 313.5466 313.6867 313.8268 313.9669 314.1069 314.2470 314.3870 314.5271 314.6671 314.8071 314.9471 315.0871 315.2271 315.3670 315.5070 315.6469 315.7869 315.9268 316.0667 316.2066 316.3464 316.4863 316.6262 316.7660 316.9058 317.0456 317.1854 317.3252 317.4650 317.6048 317.7445 317.8843 318.0240 318.1637 318.3034 318.4431 318.5828 318.7225 318.8621 319.0018 319.1414 319.2810 319.4206 319.5602 319.6998 319.8394 319.9790 320.1185 320.2580 320.3976 320.5371 320.6766 320.8161 320.9555 321.0950 321.2345 321.3739 321.5133 321.6527 321.7921 321.9315 322.0709 322.2103 322.3496 322.4890 322.6283 322.7676 322.9069 323.0462 323.1855 323.3247 323.4640 323.6032 323.7425 323.8817 324.0209 324.1601 324.2993 324.4384 324.5776 324.7168 324.8559 324.9950 --------------------------------------------------------------------------------------- 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: Spectrometer control temperature [°C], 999=no temperature signal Column 95: Auxiliary spectrometer temperature [°C], 999=no temperature signal Column 96: Temperature in head sensor [°C], 999=no temperature signal Column 97: Temperature at electronics board 1 [°C], 999=no temperature signal Column 98: Temperature at electronics board 2 [°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 101-243: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 244-386: 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 20200903T115102.0Z 7551.493773 334 1 5.90 2 43.57 183.32 134.85 342.00 0.00 1 0.00 1 0 17 9.942e-03 7.063e-03 5.976e-03 3.532e-03 1.809591e-01 1.794880e-03 2.357026e-03 -6.000000e+00 5.666366e-03 230.07 -2.00 3.79 -2.00 315.63 0.00e+00 3.908220e-04 1.727590e-04 3.955464e-05 -6.000000e+00 2.477614e-04 281.59 -2.00 20.00 -2.00 314.98 0.00e+00 1.378 0.000 302.00 328.00 3 4.5519e+00 4.6567e-03 1.6996e-02 -6.0000e+00 1.4161e-02 1.3787e-02 5.1940e-03 1.0103e-02 -6.0000e+00 1.5390e-02 1.3437e-03 2.9699e-03 4.9227e-03 -6.0000e+00 9.1438e-03 -5.8417e-03 1.3258e-03 1.3679e-03 -6.0000e+00 3.8369e-03 1.2028e-03 8.2065e-05 9.9674e-05 1.6733e-05 -6.0000e+00 2.6535e-04 -2.3424e-03 7.6060e-05 12 9 1 12 9 1 98.63 18.86 0.11 -0.00234 -0.00173 3 7 2 8 0 1431.200 15.01 18.86 26.99 21.17 21.48 45.8 1016.29 -2049 1346 -2266 -2934 -729 -1012 -1045 3471 1435 -1926 -1921 -942 -497 -1165 1658 -1088 -1249 480 1188 1344 -2082 472 1089 785 704 1239 863 1221 539 1218 1081 1233 1983 -1033 -1357 -824 -347 -868 -842 -1030 -1110 -1467 -1409 -182 -201 -1363 -568 -145 -247 688 342 1507 1063 189 1223 632 770 -9 640 1097 1436 1330 1721 972 -701 327 -352 -124 898 630 -70 132 249 256 330 -109 512 -549 49 -1270 -1489 -1604 -2223 -1159 -489 -1234 -651 156 393 -261 202 -69 -34 255 146 517 509 643 428 -794 -25 -974 199 150 -1032 -927 -300 -534 -85 247 123 619 302 192 -387 272 404 762 188 -229 -176 30 1072 197 884 214 214 1046 670 296 -582 -7 10 666 148 -544 -31 11 -217 -215 -518 -493 -293 -553 369 -633 -751 -167 -229 -253 895 409 -569 -552 -278 -160 -418 632 -443 -518 201 509 587 -935 207 485 366 339 606 414 550 231 516 478 573 958 -503 -626 -380 -176 -496 -548 -735 -829 -1119 -1096 -140 -154 -1047 -424 -106 -177 492 255 1161 849 156 1018 534 656 -8 534 915 1240 1205 1635 945 -670 291 -300 -104 798 609 -71 137 255 256 313 -96 423 -445 42 -1165 -1469 -1668 -2411 -1283 -566 -1499 -811 196 492 -317 232 -75 -34 259 154 579 608 808 552 -1003 -31 -1128 226 177 -1291 -1192 -396 -724 -118 353 180 895 422 256 -493 333 501 976 253 -320 -248 42 1470 263 1140 269 261 1290 860 393 -795 -10 14 945 218 -825 -48 17 -338 -331 -784 -730 -432 SS 20200903T132219.1Z 7551.557166 379 1 50.26 2 48.29 214.37 135.15 13.03 0.00 1 0.00 1 0 25 1.290e-02 6.818e-03 8.082e-03 3.053e-03 1.956893e-01 1.531476e-03 2.531092e-03 -6.000000e+00 7.346901e-03 230.06 -2.00 3.79 -2.00 317.19 0.00e+00 1.681166e-04 2.074650e-04 8.299047e-05 -6.000000e+00 3.213244e-04 281.59 -2.00 20.00 -2.00 316.44 0.00e+00 1.500 0.000 302.00 328.00 3 5.4616e+00 4.0584e-03 1.8474e-02 -6.0000e+00 1.8360e-02 5.1753e-03 4.5626e-03 1.0964e-02 -6.0000e+00 1.9957e-02 7.3895e-03 2.6815e-03 5.3443e-03 -6.0000e+00 1.1857e-02 -7.5229e-03 1.2780e-03 1.4715e-03 -6.0000e+00 4.9740e-03 4.1930e-04 -1.1930e-04 8.9039e-05 1.6650e-05 -6.0000e+00 3.4422e-04 -1.5996e-03 1.7172e-05 11 8 0 10 0 0 99.96 18.90 0.44 -0.00160 -0.00250 24 5 2 8 0 2080.180 15.01 18.90 28.74 21.17 21.48 45.9 1015.63 -5070 198 -5095 763 -855 -763 -1152 823 -2825 1215 1730 -1619 2404 -2546 2585 -2838 -291 -413 -722 1888 -134 2697 -1369 1781 -157 3227 -1363 -399 1084 722 2210 1445 3329 -2113 7 -3198 132 -1578 -691 -1709 -1145 -452 -1696 -856 -807 -308 -1469 168 -999 1193 275 860 1393 339 1543 1153 1492 -248 1639 985 1380 1490 1046 1674 -236 186 91 156 393 536 357 174 -413 311 -120 -455 299 -1707 509 -962 -658 -1415 -1622 -1335 -1124 -678 -726 305 261 374 118 755 -24 506 301 105 397 422 134 -755 -306 -1151 182 205 -602 -1055 -575 -401 -85 414 2 489 -58 235 -483 476 -52 330 842 -553 150 -267 592 -26 1098 169 801 1119 67 811 -292 60 -512 489 -124 -72 -18 364 150 -446 -353 -435 -522 -778 31 -820 105 -107 -95 -156 123 -480 201 276 -278 445 -558 601 -739 -75 -110 -199 524 -38 744 -407 540 -51 1031 -442 -119 300 200 638 448 1081 -709 2 -1030 45 -656 -337 -946 -670 -271 -1052 -525 -493 -187 -874 96 -561 663 164 539 911 231 1059 809 1064 -178 1132 689 1006 1171 879 1451 -199 143 66 111 307 467 331 166 -392 283 -102 -349 209 -1175 367 -784 -587 -1387 -1656 -1430 -1282 -814 -914 389 330 452 133 777 -23 478 302 115 475 546 179 -980 -376 -1319 203 240 -764 -1409 -792 -574 -126 646 4 773 -89 332 -637 598 -67 440 1196 -836 229 -406 869 -37 1476 219 999 1422 90 1141 -428 89 -776 767 -206 -124 -32 644 266 -781 -603 -721 -856