File name: Pandora236s1_NewLondonCT_20230930_L2Fit_fout2c4d20220606p1-8.txt File generation date: 20240318T201922.4Z Data description: Level 2 spectral fitting results file Data file version: fout2c4p1-8 Local principal investigator: Brooke S.Stutzman Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 236 Spectrometer number: 1 Processing software version used: BlickP v1.8.59 Instrument operation file used: Pandora236_OF_v3d20220107.txt Instrument calibration file used: Pandora236s1_CF_v4d20220606.txt Level 1 file used: Pandora236s1_NewLondonCT_20230930_L1_smca1c4d20220606p1-8.txt Full location name: United States Coast Guard Academy Short location name: NewLondonCT Country of location: United States Location latitude [deg]: 41.3758 Location longitude [deg]: -72.1004 Location altitude [m]: 30 Local noon date: 20230930 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: Modification of session 3 "1.8 field calibration all gases" change in SO2 First and last pixel inside fitting window: 197 338 Nominal wavelengths inside fitting window [nm]: 305.1267 305.2679 305.4091 305.5502 305.6914 305.8325 305.9737 306.1148 306.2559 306.3970 306.5381 306.6792 306.8203 306.9613 307.1024 307.2434 307.3845 307.5255 307.6665 307.8075 307.9485 308.0894 308.2304 308.3714 308.5123 308.6532 308.7942 308.9351 309.0760 309.2169 309.3577 309.4986 309.6395 309.7803 309.9211 310.0620 310.2028 310.3436 310.4844 310.6251 310.7659 310.9067 311.0474 311.1881 311.3289 311.4696 311.6103 311.7510 311.8916 312.0323 312.1730 312.3136 312.4543 312.5949 312.7355 312.8761 313.0167 313.1573 313.2978 313.4384 313.5790 313.7195 313.8600 314.0005 314.1410 314.2815 314.4220 314.5625 314.7029 314.8434 314.9838 315.1243 315.2647 315.4051 315.5455 315.6859 315.8262 315.9666 316.1070 316.2473 316.3876 316.5279 316.6682 316.8085 316.9488 317.0891 317.2294 317.3696 317.5099 317.6501 317.7903 317.9305 318.0707 318.2109 318.3511 318.4912 318.6314 318.7715 318.9117 319.0518 319.1919 319.3320 319.4721 319.6121 319.7522 319.8923 320.0323 320.1723 320.3124 320.4524 320.5924 320.7323 320.8723 321.0123 321.1522 321.2922 321.4321 321.5720 321.7119 321.8518 321.9917 322.1316 322.2715 322.4113 322.5512 322.6910 322.8308 322.9706 323.1104 323.2502 323.3900 323.5297 323.6695 323.8092 323.9490 324.0887 324.2284 324.3681 324.5078 324.6474 324.7871 324.9268 --------------------------------------------------------------------------------------- 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 100-241: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 242-383: 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 20230930T160313.4Z 8673.668905 429 1 50.74 2 44.97 167.51 125.19 329.91 0.00 1 0.00 1 0 17 9.841e-03 6.672e-03 2.637e-03 1.322e-03 1.776683e-01 6.598113e-04 2.183623e-03 -6.000000e+00 5.555261e-03 227.54 -2.00 3.52 -2.00 316.29 0.00e+00 5.146770e-04 7.424248e-05 7.561272e-05 -6.000000e+00 2.479574e-04 285.64 -2.00 20.00 -2.00 315.55 0.00e+00 1.412 0.000 302.00 328.00 3 4.4699e+00 1.7135e-03 1.6799e-02 -6.0000e+00 1.3789e-02 2.6375e-02 1.9161e-03 9.2056e-03 -6.0000e+00 1.4967e-02 2.2956e-03 1.1085e-03 4.5094e-03 -6.0000e+00 8.9277e-03 -4.9453e-03 5.2310e-04 1.2785e-03 -6.0000e+00 3.8461e-03 1.2456e-03 -1.7421e-04 3.6935e-05 1.4665e-05 -6.0000e+00 2.5542e-04 -6.6455e-04 0.0000e+00 11 8 0 10 0 0 99.91 23.98 0.49 -0.00066 -0.00197 48 8 1 5 0 1056.900 26.32 20.00 23.98 23.92 12.1 1005.10 107 1093 -1735 -2828 -3657 -1036 -367 -415 14 -1992 -2746 192 116 817 974 -417 992 -282 619 857 -697 708 1653 811 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-1659 -1171 -1347 -392 636 863 627 326 75 220 76 301 -29 339 89 -351 366 853 678 1339 991 231 1316 482 140 172 -324 -398 -111 -182 -342 -220 720 -206 -55 -6 -918 -987 SS 20230930T160833.5Z 8673.672609 432 1 51.92 2 44.77 169.38 125.64 331.35 0.00 1 0.00 1 0 17 1.035e-02 6.880e-03 4.481e-03 2.083e-03 1.783783e-01 1.041543e-03 2.190271e-03 -6.000000e+00 5.841955e-03 227.54 -2.00 3.52 -2.00 316.52 0.00e+00 4.917368e-04 1.237960e-04 1.357343e-04 -6.000000e+00 2.607430e-04 285.64 -2.00 20.00 -2.00 315.76 0.00e+00 1.407 0.000 302.00 328.00 3 5.1583e+00 2.7178e-03 1.6772e-02 -6.0000e+00 1.4501e-02 3.4879e-02 3.0429e-03 9.2136e-03 -6.0000e+00 1.5739e-02 1.5421e-03 1.7657e-03 4.5206e-03 -6.0000e+00 9.3883e-03 -4.1913e-03 8.3987e-04 1.2774e-03 -6.0000e+00 4.0447e-03 6.2579e-04 -1.9819e-05 5.8562e-05 1.4731e-05 -6.0000e+00 2.6858e-04 -1.0428e-03 0.0000e+00 11 8 0 10 0 0 99.98 23.98 0.32 -0.00104 -0.00119 33 6 1 5 0 1573.070 26.32 20.00 23.98 24.29 12.1 1007.56 -648 0 -2591 -2681 -2782 489 420 2109 642 -1059 -3556 -1063 1399 -517 1143 -504 975 285 370 1547 -1258 1255 591 970 -195 454 -481 -844 -1130 372 1356 2726 238 -2747 -2596 -1399 -1648 -1322 191 -157 -666 -190 -1097 -102 -80 -560 -740 -1028 -998 970 767 677 1155 780 1317 1221 303 348 391 326 1075 1506 2326 1291 -518 -305 -1094 730 820 812 604 87 711 -100 -308 -420 -1983 -1357 -1094 -1120 -460 -1930 -1744 -1157 -667 -56 -68 1015 390 305 65 -501 81 -92 -186 335 700 241 -18 -531 -931 -916 -408 -904 -880 -873 -779 -154 393 617 609 334 296 248 16 353 162 317 33 -134 132 483 421 584 824 405 1199 287 88 -113 -21 -698 165 -279 -264 42 498 -87 11 -121 -449 -654 -130 0 -541 -493 -455 77 73 403 135 -227 -749 -230 331 -140 338 -159 307 93 124 527 -438 420 207 355 -75 177 -181 -311 -391 128 487 1025 98 -1110 -961 -533 -713 -676 107 -99 -442 -129 -765 -70 -55 -378 -481 -646 -608 592 500 464 825 580 984 929 234 264 292 246 853 1285 2106 1206 -457 -242 -821 542 682 756 597 87 697 -93 -261 -340 -1494 -1005 -890 -954 -430 -1972 -1848 -1294 -802 -71 -90 1347 509 370 72 -503 80 -93 -192 378 872 326 -24 -680 -1108 -1014 -454 -1105 -1148 -1186 -1107 -225 565 933 936 497 437 332 19 427 204 425 49 -204 200 712 599 782 1047 487 1498 356 116 -157 -29 -1005 241 -435 -435 71 805 -144 19 -203 -731 -1037 SS 20230930T174834.0Z 8673.742060 497 1 16.32 2 47.07 204.27 129.55 0.81 0.00 1 0.00 1 0 17 1.166e-02 7.666e-03 5.309e-03 2.884e-03 1.833808e-01 1.451367e-03 2.236189e-03 -6.000000e+00 6.582459e-03 227.53 -2.00 3.52 -2.00 315.93 0.00e+00 3.516058e-04 1.508626e-04 6.216491e-05 -6.000000e+00 2.937930e-04 285.63 -2.00 20.00 -2.00 315.20 0.00e+00 1.466 0.000 302.00 328.00 3 5.0323e+00 3.7562e-03 1.7385e-02 -6.0000e+00 1.6339e-02 2.6236e-02 4.1935e-03 9.4383e-03 -6.0000e+00 1.7734e-02 -4.4887e-04 2.4180e-03 4.6262e-03 -6.0000e+00 1.0578e-02 -2.2585e-03 1.1218e-03 1.3031e-03 -6.0000e+00 4.5574e-03 6.6656e-04 -1.0999e-04 7.9830e-05 1.5190e-05 -6.0000e+00 3.0264e-04 -1.0047e-03 0.0000e+00 12 9 1 12 1 1 99.64 24.00 0.58 -0.00100 -0.00183 6 4 1 5 0 2330.300 26.32 20.00 24.00 24.72 12.0 1008.57 1051 361 -2969 -4988 -4490 -1 1151 -1159 -1386 -2214 -2914 -955 -5 1499 1173 -1040 385 -966 1836 1034 369 1972 1101 1135 1375 1549 -1647 -1179 -707 1085 1415 1700 623 -1850 -2950 -734 -1415 215 -679 -657 -597 -550 -743 -594 1005 -547 -342 -1154 -579 825 1228 72 1582 311 831 1532 465 890 117 851 1153 1014 2035 1135 -683 39 -997 -171 225 872 168 -15 931 -39 -295 -735 -1247 -802 -1009 -1487 -969 -2793 -1579 -1513 -835 -340 -38 841 829 610 -34 -399 -189 471 127 452 1092 442 -17 -480 -537 -867 -173 -788 -968 -1071 -977 -330 477 681 821 140 429 -164 248 -9 -97 516 351 -198 81 681 577 890 402 135 1348 36 240 311 -47 -435 37 -466 37 -129 269 136 13 -298 -560 -791 242 88 -728 -1160 -924 0 245 -284 -351 -597 -759 -257 -2 470 411 -390 144 -378 719 420 150 780 457 494 620 712 -749 -486 -271 413 568 723 285 -830 -1229 -312 -685 115 -439 -453 -432 -409 -563 -446 741 -403 -242 -794 -404 580 873 54 1236 255 688 1280 377 738 97 705 961 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