File name: Pandora61s1_AldineTX_20250405_L2Fit_fout2c8d20241003p1-8.txt File generation date: 20250406T063023.4Z Data description: Level 2 spectral fitting results file Data file version: fout2c8p1-8 Local principal investigator: James Flynn Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 61 Spectrometer number: 1 Processing software version used: BlickP v1.8.75 Instrument operation file used: Pandora61_OF_v5d20210204.txt Instrument calibration file used: Pandora61s1_CF_v8d20241003.txt Level 1 file used: Pandora61s1_AldineTX_20250405_L1_smca1c8d20241003p1-8.txt Full location name: University Of Houston Trailer Short location name: AldineTX Country of location: United States Location latitude [deg]: 29.9011 Location longitude [deg]: -95.3262 Location altitude [m]: 8 Local noon date: 20250405 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: 260 402 Nominal wavelengths inside fitting window [nm]: 305.0886 305.2296 305.3705 305.5115 305.6524 305.7933 305.9342 306.0751 306.2160 306.3569 306.4978 306.6386 306.7794 306.9203 307.0611 307.2019 307.3427 307.4834 307.6242 307.7649 307.9057 308.0464 308.1871 308.3278 308.4685 308.6091 308.7498 308.8904 309.0311 309.1717 309.3123 309.4529 309.5934 309.7340 309.8746 310.0151 310.1556 310.2961 310.4366 310.5771 310.7176 310.8581 310.9985 311.1390 311.2794 311.4198 311.5602 311.7006 311.8410 311.9813 312.1217 312.2620 312.4023 312.5426 312.6829 312.8232 312.9635 313.1038 313.2440 313.3842 313.5245 313.6647 313.8049 313.9450 314.0852 314.2254 314.3655 314.5057 314.6458 314.7859 314.9260 315.0661 315.2061 315.3462 315.4862 315.6263 315.7663 315.9063 316.0463 316.1863 316.3262 316.4662 316.6062 316.7461 316.8860 317.0259 317.1658 317.3057 317.4456 317.5854 317.7253 317.8651 318.0049 318.1447 318.2845 318.4243 318.5641 318.7038 318.8436 318.9833 319.1230 319.2627 319.4024 319.5421 319.6818 319.8214 319.9611 320.1007 320.2403 320.3799 320.5195 320.6591 320.7987 320.9382 321.0778 321.2173 321.3568 321.4964 321.6359 321.7753 321.9148 322.0543 322.1937 322.3331 322.4726 322.6120 322.7514 322.8908 323.0301 323.1695 323.3088 323.4482 323.5875 323.7268 323.8661 324.0054 324.1447 324.2839 324.4232 324.5624 324.7016 324.8409 324.9801 --------------------------------------------------------------------------------------- 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 20250405T172954.8Z 9226.729106 299 1 43.13 2 26.74 148.98 97.60 54.87 0.00 1 0.00 1 0 17 1.551e-02 1.066e-02 1.212e-02 6.870e-03 1.420185e-01 3.599980e-03 1.551863e-03 -6.000000e+00 9.241019e-03 228.68 -2.00 3.24 -2.00 315.81 0.00e+00 8.360369e-04 3.714160e-04 2.123754e-05 -6.000000e+00 4.159033e-04 287.25 -2.00 20.00 -2.00 315.06 0.00e+00 1.119 0.000 302.00 328.00 3 6.3569e+00 9.3275e-03 1.3044e-02 -6.0000e+00 2.2948e-02 5.8928e-02 1.0405e-02 6.7540e-03 -6.0000e+00 2.4870e-02 1.7424e-02 5.9405e-03 3.2527e-03 -6.0000e+00 1.4856e-02 -9.4104e-03 2.6337e-03 1.0363e-03 -6.0000e+00 6.2237e-03 2.6375e-04 -2.2145e-04 2.1701e-04 1.2652e-05 -6.0000e+00 4.7012e-04 -1.3137e-02 7.1749e-05 12 8 8 10 0 0 99.72 19.71 0.66 -0.01314 -0.01480 47 19 1 5 0 917.400 23.32 15.03 19.71 31.25 32.0 1050.85 -6687 3549 -3587 482 4357 1796 3315 -900 -385 -2533 3066 -2431 1221 -3157 1904 -1620 1399 1198 1934 1025 -220 2182 -1258 -399 1551 1923 -1554 1587 -1927 1267 450 3266 1130 -883 -2016 -3501 -435 425 1679 -2687 815 -1396 5 -165 559 -906 -1608 -1603 -2269 670 -2056 2265 -273 1808 87 650 1120 -647 491 -782 1143 1675 1883 1031 876 -1209 219 -2149 187 755 735 -234 428 709 -981 340 -1372 -1046 -1722 658 -2281 -1184 -281 -515 819 -937 1222 -32 670 662 1099 -1651 1456 539 -147 353 160 506 81 -167 -218 -71 -412 385 -3667 431 -1215 857 -367 560 -774 283 -67 460 -354 -1688 -27 -418 922 182 -118 687 1399 609 532 -759 568 -45 -505 1015 -1941 1576 -737 1263 -119 446 1208 -1274 450 -572 -172 59 -784 -1839 937 -1012 122 966 389 736 -227 -105 -723 820 -693 361 -1073 677 -631 543 476 782 427 -94 906 -546 -177 700 882 -723 677 -797 492 180 1332 490 -390 -859 -1502 -196 217 988 -1861 586 -1064 4 -127 428 -694 -1208 -1161 -1600 457 -1484 1646 -212 1425 71 534 924 -539 401 -650 964 1489 1770 1008 836 -1089 181 -1762 158 695 729 -243 441 706 -930 290 -1085 -786 -1336 545 -2127 -1180 -294 -565 944 -1165 1560 -42 881 838 1291 -1824 1439 520 -147 379 187 637 106 -215 -266 -82 -462 443 -4675 557 -1658 1191 -536 844 -1211 435 -99 629 -451 -2067 -33 -525 1216 256 -170 983 1946 822 684 -941 669 -53 -624 1293 -2626 2098 -1017 1768 -177 686 1895 -2086 727 -917 -269 90 -1190 SS 20250405T175252.1Z 9226.745048 309 1 11.66 2 24.64 161.24 93.65 57.89 0.00 1 0.00 1 0 17 8.239e-03 6.376e-03 5.737e-03 3.708e-03 1.372119e-01 1.957754e-03 1.537064e-03 -6.000000e+00 4.908118e-03 228.69 -2.00 3.24 -2.00 315.24 0.00e+00 4.175499e-04 1.798328e-04 1.516177e-05 -6.000000e+00 2.208916e-04 287.26 -2.00 20.00 -2.00 314.54 0.00e+00 1.100 0.000 302.00 328.00 3 4.8147e+00 5.0404e-03 1.2789e-02 -6.0000e+00 1.2188e-02 5.2778e-02 5.6079e-03 6.5590e-03 -6.0000e+00 1.3209e-02 1.5925e-03 3.2019e-03 3.1884e-03 -6.0000e+00 7.8902e-03 -4.5330e-03 1.3932e-03 9.2223e-04 -6.0000e+00 3.3057e-03 1.2863e-03 -1.4203e-04 1.1638e-04 1.3026e-05 -6.0000e+00 2.4968e-04 -1.3573e-02 6.4803e-05 12 1 1 12 1 1 99.96 19.72 1.62 -0.01357 -0.01464 41 61 1 5 0 277.400 23.32 14.98 19.72 32.34 32.0 1059.74 -1767 -90 -2423 -44 -1839 -83 -1565 2087 -707 153 -1192 -145 -351 448 1202 -841 1767 -329 1140 205 1824 -483 1951 -61 375 920 -1052 -239 -782 1675 172 1700 -466 -791 -586 -644 -979 156 24 -852 25 -1128 -228 -1140 74 -810 -377 -844 -500 154 671 929 -575 524 108 1609 23 812 158 1277 1316 2055 1204 162 133 155 54 -100 1165 248 -102 -438 291 -126 611 -855 -652 -379 -438 -20 -1663 -1541 -1490 -1075 -1253 -259 -540 443 -665 369 -102 133 1181 783 497 203 1020 -3 -85 -826 -458 185 583 -206 -505 -385 -806 -497 -258 483 -138 359 -233 -112 181 446 681 303 669 -468 -180 221 408 107 454 -250 986 588 675 423 -214 303 -120 194 9 208 7 -366 -362 -72 -512 -22 -462 -548 -29 -792 -13 -534 -23 -448 632 -239 53 -409 -50 -129 167 488 -369 772 -149 520 97 851 -229 914 -30 191 474 -541 -114 -376 758 80 816 -238 -404 -283 -309 -510 86 16 -632 20 -939 -191 -969 61 -671 -301 -650 -370 112 501 726 -476 444 94 1393 21 709 137 1100 1170 1926 1209 158 135 145 46 -83 1010 240 -107 -447 294 -132 594 -761 -524 -287 -341 -17 -1583 -1590 -1628 -1148 -1431 -312 -688 574 -869 458 -117 148 1191 762 503 223 1217 -4 -107 -1031 -537 216 658 -243 -599 -482 -1058 -677 -365 707 -209 537 -334 -148 233 542 821 383 842 -634 -250 305 548 138 592 -310 1159 692 827 544 -287 412 -167 259 13 306 11 -569 -564 -109 -764 -31 -661 SS 20250405T192331.1Z 9226.807999 367 1 43.61 2 27.38 213.79 76.84 68.17 0.00 1 0.00 1 0 17 1.361e-02 8.769e-03 1.309e-02 7.477e-03 1.500702e-01 3.922525e-03 1.645445e-03 -6.000000e+00 8.111140e-03 228.69 -2.00 3.24 -2.00 315.79 0.00e+00 4.485563e-04 4.024820e-04 2.449363e-05 -6.000000e+00 3.650223e-04 287.26 -2.00 20.00 -2.00 315.04 0.00e+00 1.126 0.000 302.00 328.00 3 6.5793e+00 1.0162e-02 1.3311e-02 -6.0000e+00 2.0142e-02 8.1997e-02 1.1340e-02 7.0975e-03 -6.0000e+00 2.1827e-02 4.4535e-03 6.4722e-03 3.4441e-03 -6.0000e+00 1.3038e-02 -5.7262e-03 2.8664e-03 1.0023e-03 -6.0000e+00 5.4636e-03 2.0599e-04 6.7096e-05 2.3576e-04 1.3430e-05 -6.0000e+00 4.1249e-04 -1.2967e-02 1.5774e-04 11 9 0 11 8 0 99.79 19.80 2.44 -0.01297 -0.01246 28 11 1 5 0 1555.790 23.43 15.02 19.80 32.11 32.0 1057.84 -283 -4267 2319 -1604 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