File name: Pandora80s1_BeltsvilleMD_20230121_L2Fit_fout2c8d20220601p1-8.txt File generation date: 20241115T024807.4Z Data description: Level 2 spectral fitting results file Data file version: fout2c8p1-8 Local principal investigator: John Sullivan Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 80 Spectrometer number: 1 Processing software version used: BlickP v1.8.60 Instrument operation file used: Pandora80_OF_v4d20220517.txt Instrument calibration file used: Pandora80s1_CF_v8d20220601.txt Level 1 file used: Pandora80s1_BeltsvilleMD_20230121_L1_smca1c8d20220601p1-8.txt Full location name: Howard University-Beltsville Campus, Beltsville, MD Short location name: BeltsvilleMD Country of location: United States Location latitude [deg]: 39.0567 Location longitude [deg]: -76.8758 Location altitude [m]: 70 Local noon date: 20230121 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, radiometric temperature correction, matrix method stray light correction (replaced by simple method) Data caveats: None First and last pixel inside fitting window: 196 337 Nominal wavelengths inside fitting window [nm]: 305.1296 305.2706 305.4117 305.5527 305.6937 305.8347 305.9757 306.1167 306.2576 306.3986 306.5396 306.6805 306.8214 306.9623 307.1032 307.2441 307.3850 307.5259 307.6667 307.8076 307.9484 308.0893 308.2301 308.3709 308.5117 308.6524 308.7932 308.9340 309.0747 309.2155 309.3562 309.4969 309.6376 309.7783 309.9190 310.0596 310.2003 310.3409 310.4816 310.6222 310.7628 310.9034 311.0440 311.1846 311.3252 311.4657 311.6063 311.7468 311.8873 312.0278 312.1683 312.3088 312.4493 312.5898 312.7302 312.8707 313.0111 313.1515 313.2919 313.4323 313.5727 313.7131 313.8535 313.9938 314.1342 314.2745 314.4148 314.5551 314.6954 314.8357 314.9760 315.1162 315.2565 315.3967 315.5370 315.6772 315.8174 315.9576 316.0978 316.2380 316.3781 316.5183 316.6584 316.7985 316.9386 317.0788 317.2188 317.3589 317.4990 317.6391 317.7791 317.9191 318.0592 318.1992 318.3392 318.4792 318.6192 318.7591 318.8991 319.0390 319.1790 319.3189 319.4588 319.5987 319.7386 319.8785 320.0183 320.1582 320.2980 320.4378 320.5777 320.7175 320.8573 320.9971 321.1368 321.2766 321.4163 321.5561 321.6958 321.8355 321.9752 322.1149 322.2546 322.3943 322.5339 322.6736 322.8132 322.9528 323.0925 323.2321 323.3716 323.5112 323.6508 323.7903 323.9299 324.0694 324.2089 324.3485 324.4880 324.6274 324.7669 324.9064 --------------------------------------------------------------------------------------- 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 20230121T143103.8Z 8421.604905 107 1 11.20 2 70.78 138.28 75.11 143.75 0.00 1 0.00 1 0 17 5.851e-02 7.999e-03 2.728e-02 3.153e-03 4.292851e-01 1.558765e-03 5.039176e-03 -6.000000e+00 3.242655e-02 224.12 -2.00 3.47 -2.00 318.75 0.00e+00 1.683685e-03 3.418379e-04 5.346227e-04 -6.000000e+00 1.410333e-03 276.51 -2.00 20.00 -2.00 318.18 0.00e+00 3.003 0.000 302.00 328.00 3 3.4198e+00 4.2112e-03 3.6681e-02 -6.0000e+00 8.0148e-02 5.2651e-02 4.8397e-03 2.1551e-02 -6.0000e+00 8.7238e-02 -2.9401e-02 3.6052e-03 1.1048e-02 -6.0000e+00 5.1888e-02 6.5491e-03 1.9439e-03 3.6279e-03 -6.0000e+00 2.2539e-02 5.1547e-04 9.0706e-05 8.4195e-05 3.4282e-05 -6.0000e+00 1.4796e-03 -9.4659e-03 1.0476e-04 12 9 1 12 1 1 99.81 23.47 0.47 -0.00947 -0.00878 11 9 1 5 0 919.320 26.21 19.98 23.47 13.57 3.9 877.10 -10632 -18921 -23769 -15292 -24739 -15203 -16350 -14954 -23393 -21072 -18679 -12123 -2109 -957 -421 -1449 -2914 -7924 7455 -181 3730 -3307 -2091 -2135 607 886 -8649 -4817 -8290 1605 -1289 1946 3670 -3808 -2595 -5991 -3270 -2118 -23 31 -623 901 1006 588 1077 329 -714 605 281 660 2374 1274 2085 778 1958 633 852 464 452 1094 1779 2643 2598 1747 413 -633 -996 -341 887 738 1455 543 599 84 -364 -1509 -2922 -1992 -2130 -1452 -1577 -1771 -2107 -1522 -829 20 364 508 632 607 959 -255 -349 20 -69 -30 770 960 -14 -101 -796 -1492 -787 -478 -1173 -1021 -512 -580 392 836 747 217 244 167 32 -113 -168 293 396 107 754 529 955 321 608 -830 200 75 182 342 -66 -425 -695 29 -35 16 379 263 34 -292 -376 -530 -337 -715 -964 -517 -829 -472 -568 -584 -1107 -1010 -879 -604 -116 -63 -33 -128 -279 -855 726 -20 394 -373 -248 -273 80 121 -1279 -641 -1109 210 -198 327 678 -752 -466 -1157 -701 -538 -6 10 -216 322 371 219 403 125 -272 229 108 268 1043 613 978 394 1008 340 463 248 235 567 972 1586 1736 1167 294 -423 -652 -227 612 581 1213 465 497 66 -258 -1048 -1936 -1335 -1502 -1180 -1454 -1682 -2113 -1603 -873 22 418 593 724 651 1008 -251 -327 20 -76 -34 940 1301 -20 -135 -982 -1783 -904 -593 -1476 -1336 -704 -797 576 1265 1197 349 375 252 45 -164 -237 438 633 167 1212 827 1440 463 890 -1170 273 110 279 534 -110 -727 -1234 52 -66 30 712 504 65 -549 -675 -911 SS 20230121T144119.6Z 8421.612033 110 1 13.25 2 69.49 140.44 73.99 145.75 0.00 1 0.00 1 0 17 4.156e-02 7.200e-03 1.235e-02 1.760e-03 3.996528e-01 8.657451e-04 4.708306e-03 -6.000000e+00 2.302429e-02 224.12 -2.00 3.47 -2.00 318.47 0.00e+00 1.374779e-03 1.722084e-04 4.413757e-04 -6.000000e+00 1.001495e-03 276.51 -2.00 20.00 -2.00 317.87 0.00e+00 2.825 0.000 302.00 328.00 3 2.7383e+00 2.3292e-03 3.4356e-02 -6.0000e+00 5.6908e-02 2.6858e-02 2.6569e-03 2.0020e-02 -6.0000e+00 6.1950e-02 -1.7854e-02 1.8774e-03 1.0162e-02 -6.0000e+00 3.6848e-02 4.2068e-03 1.0083e-03 3.1938e-03 -6.0000e+00 1.6000e-02 1.2711e-03 -8.0286e-05 4.7155e-05 3.0385e-05 -6.0000e+00 1.0511e-03 -8.6301e-03 4.4350e-05 12 9 1 12 1 1 99.26 23.53 0.45 -0.00863 -0.00923 31 19 1 5 0 408.740 26.21 20.03 23.53 13.71 3.9 877.54 -14248 -8517 -15650 -13844 -19778 -13579 -10953 -6316 -8099 -13281 -13011 -11181 -10308 -5175 -1554 -1746 -1579 -1390 -917 1805 649 1404 129 -2440 -1473 263 -2789 -4566 -2261 -2227 385 1254 705 -2453 -4738 -5269 -3807 -591 415 588 -311 -158 747 813 1062 1125 392 -495 74 406 1434 1229 1998 1459 938 1319 332 508 60 1155 1283 1785 2429 1669 324 353 -902 -764 831 662 1031 305 539 237 -428 -725 -2160 -1901 -1644 -1338 -1147 -2027 -2031 -1498 -584 -145 349 741 738 510 685 -269 -1211 -575 -353 -174 820 663 68 -263 -774 -1319 -975 -617 -1029 -858 -657 -179 484 529 734 732 386 -169 -129 -184 83 367 408 425 401 735 422 334 460 -286 294 420 52 71 -244 -249 -195 77 63 -171 296 150 -20 -210 -523 -557 -616 -380 -763 -599 -818 -538 -468 -294 -427 -761 -744 -704 -778 -445 -153 -191 -183 -171 -118 236 86 184 18 -380 -240 44 -470 -730 -341 -360 69 248 156 -554 -1007 -1173 -953 -156 133 216 -124 -66 318 346 455 484 169 -215 32 186 654 606 1046 815 542 781 201 301 35 666 785 1108 1662 1229 233 236 -592 -512 622 524 868 263 451 187 -330 -502 -1421 -1268 -1241 -1081 -1044 -1921 -2023 -1569 -655 -161 402 864 846 585 719 -263 -1214 -557 -382 -198 1049 887 94 -344 -995 -1544 -1105 -756 -1361 -1111 -897 -257 704 838 1157 1150 612 -250 -187 -259 120 533 634 683 634 1126 628 499 658 -391 389 600 77 115 -392 -411 -333 132 115 -323 540 279 -36 -383 -915 -984 SS 20230121T145242.3Z 8421.619934 117 1 52.19 2 68.11 142.90 72.81 148.01 0.00 1 0.00 1 0 17 3.705e-02 6.192e-03 1.212e-02 1.290e-03 3.786195e-01 6.364392e-04 4.439307e-03 -6.000000e+00 2.052819e-02 224.12 -2.00 3.47 -2.00 319.07 0.00e+00 1.383625e-03 1.501729e-04 5.667978e-04 -6.000000e+00 8.929386e-04 276.51 -2.00 20.00 -2.00 318.49 0.00e+00 2.659 0.000 302.00 328.00 3 3.0725e+00 1.7404e-03 3.2447e-02 -6.0000e+00 5.0738e-02 2.5751e-02 2.0173e-03 1.9057e-02 -6.0000e+00 5.5235e-02 -4.3140e-03 1.5414e-03 9.8463e-03 -6.0000e+00 3.2853e-02 -5.3810e-03 8.2640e-04 3.1846e-03 -6.0000e+00 1.4265e-02 1.0936e-03 -5.2144e-05 3.5744e-05 3.0510e-05 -6.0000e+00 9.3718e-04 -8.4153e-03 4.0560e-05 10 0 0 10 0 0 99.92 23.57 0.56 -0.00842 -0.00881 200 30 1 5 0 260.900 26.21 20.05 23.57 14.05 3.9 882.04 -11083 -10844 -8658 -18586 -13041 -14013 -13901 -8215 -10022 -10805 -8556 -8110 -5308 -4151 -2520 -1554 -1252 -3384 1725 -1146 -507 -355 -419 -2456 -991 -1106 -2143 -1371 -2987 -1706 -161 -184 623 -2982 -3592 -3853 -2064 -1897 -193 -625 -452 5 -117 12 423 271 270 201 -432 662 904 777 1647 1283 1077 752 730 406 46 674 931 2116 2756 1936 -145 29 -896 -217 681 479 877 421 829 262 -564 -863 -1997 -1820 -1352 -1191 -1104 -1808 -1850 -1106 -618 -68 297 865 784 471 625 -301 -575 -330 -212 -60 517 925 58 -92 -1131 -1259 -1120 -612 -1155 -717 -564 -318 383 712 649 549 440 -102 -274 1 -115 220 352 141 319 681 445 352 289 -445 153 217 -16 235 -174 -255 -379 -116 -45 -113 298 307 -11 57 -304 -520 -335 -356 -282 -604 -361 -439 -481 -306 -422 -473 -365 -385 -295 -272 -191 -129 -110 -323 164 -117 -51 -36 -45 -288 -121 -140 -269 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