File name: Pandora174s1_FairbanksAK_20211022_L2Fit_fout2c2d20210103p1-8.txt
File generation date: 20251118T234006.7Z
Data description: Level 2 spectral fitting results file
Data file version: fout2c2p1-8
Local principal investigator: Jingqiu Mao
Network principal investigator: Alexander Cede
Instrument type: Pandora
Instrument number: 174
Spectrometer number: 1
Processing software version used: BlickP v1.8.75
Instrument operation file used: Pandora174_OF_v4d20200215.txt
Instrument calibration file used: Pandora174s1_CF_v2d20210103.txt
Level 1 file used: Pandora174s1_FairbanksAK_20211022_L1_smca1c2d20210103p1-8.txt
Full location name: University of Alaska Fairbanks campus
Short location name: FairbanksAK
Country of location: USA
Location latitude [deg]: 64.8594
Location longitude [deg]: -147.8499
Location altitude [m]: 227
Local noon date: 20211022
Notes on s-number (L1 configuration): Corrections NOT applied although requested by the s-number are latency correction, matrix method stray light correction (replaced by simple method)
Data caveats: None
First and last pixel inside fitting window: 230 372
Nominal wavelengths inside fitting window [nm]: 305.0396 305.1804 305.3212 305.4621 305.6029 305.7437 305.8845 306.0252 306.1660 306.3068 306.4475 306.5882 306.7290 306.8697 307.0104 307.1511 307.2918 307.4324 307.5731 307.7138 307.8544 307.9950 308.1357 308.2763 308.4169 308.5574 308.6980 308.8386 308.9791 309.1197 309.2602 309.4007 309.5413 309.6818 309.8223 309.9627 310.1032 310.2437 310.3841 310.5246 310.6650 310.8054 310.9458 311.0862 311.2266 311.3670 311.5073 311.6477 311.7880 311.9283 312.0687 312.2090 312.3493 312.4896 312.6298 312.7701 312.9104 313.0506 313.1908 313.3311 313.4713 313.6115 313.7517 313.8919 314.0320 314.1722 314.3123 314.4525 314.5926 314.7327 314.8728 315.0129 315.1530 315.2931 315.4331 315.5732 315.7132 315.8533 315.9933 316.1333 316.2733 316.4133 316.5533 316.6932 316.8332 316.9731 317.1131 317.2530 317.3929 317.5328 317.6727 317.8126 317.9524 318.0923 318.2321 318.3720 318.5118 318.6516 318.7914 318.9312 319.0710 319.2108 319.3505 319.4903 319.6300 319.7697 319.9094 320.0491 320.1888 320.3285 320.4682 320.6079 320.7475 320.8871 321.0268 321.1664 321.3060 321.4456 321.5852 321.7248 321.8643 322.0039 322.1434 322.2829 322.4225 322.5620 322.7015 322.8409 322.9804 323.1199 323.2593 323.3988 323.5382 323.6776 323.8170 323.9564 324.0958 324.2352 324.3745 324.5139 324.6532 324.7926 324.9319
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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
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SS 20211022T220430.2Z 7965.919794 449 1 48.56 2 76.43 187.24 96.44 342.79 0.00 1 0.00 1 0 17 4.422e-01 1.313e-02 1.665e-01 3.897e-03 5.998537e-01 2.166599e-03 8.786278e-03 -6.000000e+00 2.696798e-01 220.85 -2.00 4.56 -2.00 320.50 0.00e+00 3.411912e-03 7.494929e-04 6.105421e-04 -6.000000e+00 1.614065e-02 265.73 -2.00 20.00 -2.00 320.20 0.00e+00 4.163 0.002 302.00 328.00 3 8.4989e+00 6.1696e-03 5.6395e-02 -6.0000e+00 6.7707e-01 -1.6389e-01 8.2119e-03 3.9865e-02 -6.0000e+00 7.5159e-01 2.3020e-01 9.6223e-03 2.2009e-02 -6.0000e+00 4.1431e-01 -1.0496e-01 4.9482e-03 7.2047e-03 -6.0000e+00 1.9079e-01 1.0140e-06 -8.0598e-04 1.2287e-04 8.6080e-05 -6.0000e+00 1.4099e-02 5.2194e-03 0.0000e+00 12 9 8 11 32 0 60.68 22.35 0.06 0.00522 -0.00084 18 4 1 5 0 2697.760 25.58 20.01 22.35 23.67 24.1 959.51 900000 900000 900000 900000 900000 900000 900000 900000 900000 900000 900000 900000 900000 900000 900000 348 225833 28256 900000 318018 900000 157669 107851 900000 -49998 900000 67698 94855 900000 96060 55975 56068 54247 23084 3185 -6285 11520 16450 -6520 11887 -9083 5830 -10199 17136 16706 4781 -1274 -3418 -142 -15951 -3788 1711 -4848 -8284 3901 -2377 -3422 6935 -2646 5766 -4308 4485 2194 3911 121 7098 3261 5520 -1495 5215 -1549 2966 -884 -2515 -7138 -407 -1871 -1525 -5202 -799 724 -2164 -1390 -1822 -823 -4080 1107 3138 1709 2424 1955 589 -2681 -504 -763 1763 1444 1552 1443 -1015 262 -2006 -310 -831 -1016 -2024 -1131 115 717 594 1251 613 542 32 41 -572 -158 -487 -154 699 661 237 639 867 -560 469 -2307 -511 336 -421 -87 -573 -565 -996 -260 -260 487 1150 466 -36 -157 -3 22 900000 900000 900000 900000 900000 900000 900000 900000 900000 900000 900000 900000 900000 900000 900000 4 855 356 900000 1204 900000 865 935 900000 -1839 900000 1045 1182 900000 1282 1183 1386 1555 927 152 -327 557 887 -514 943 -980 600 -1285 1765 1777 582 -169 -481 -20 -2809 -657 314 -1035 -1975 887 -598 -897 1673 -687 1382 -1169 1221 682 1326 45 2473 1160 1972 -614 2266 -780 1503 -464 -1287 -3561 -177 -776 -632 -2413 -408 416 -1423 -982 -1365 -643 -3446 937 2681 1479 2039 1574 455 -2052 -384 -629 1585 1451 1716 1697 -1229 301 -2194 -315 -843 -1077 -2262 -1309 138 912 816 1824 932 830 48 60 -804 -220 -700 -230 1062 1007 354 931 1230 -782 633 -3110 -696 487 -663 -146 -1003 -1021 -1873 -507 -523 994 2362 960 -72 -308 -6 41