File name: Pandora75s1_EssexMD_20250818_L2Fit_fout2c3d20230525p1-8.txt
File generation date: 20250819T051507.1Z
Data description: Level 2 spectral fitting results file
Data file version: fout2c3p1-8
Local principal investigator: Lukas Valin
Network principal investigator: Alexander Cede
Instrument type: Pandora
Instrument number: 75
Spectrometer number: 1
Processing software version used: BlickP v1.8.75
Instrument operation file used: Pandora75_OF_v3d20220127.txt
Instrument calibration file used: Pandora75s1_CF_v3d20230525.txt
Level 1 file used: Pandora75s1_EssexMD_20250818_L1_smca1c3d20230525p1-8.txt
Full location name: MDE Essex Monitoring Site
Short location name: EssexMD
Country of location: United States
Location latitude [deg]: 39.3109
Location longitude [deg]: -76.4745
Location altitude [m]: 12
Local noon date: 20250818
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: OoB session based on session 2
First and last pixel inside fitting window: 196 338
Nominal wavelengths inside fitting window [nm]: 305.0305 305.1717 305.3128 305.4540 305.5951 305.7363 305.8774 306.0185 306.1596 306.3007 306.4418 306.5828 306.7239 306.8649 307.0060 307.1470 307.2880 307.4290 307.5700 307.7110 307.8519 307.9929 308.1338 308.2747 308.4157 308.5566 308.6975 308.8384 308.9792 309.1201 309.2610 309.4018 309.5426 309.6834 309.8243 309.9651 310.1058 310.2466 310.3874 310.5281 310.6689 310.8096 310.9503 311.0910 311.2317 311.3724 311.5131 311.6537 311.7944 311.9350 312.0757 312.2163 312.3569 312.4975 312.6381 312.7786 312.9192 313.0598 313.2003 313.3408 313.4813 313.6218 313.7623 313.9028 314.0433 314.1838 314.3242 314.4646 314.6051 314.7455 314.8859 315.0263 315.1667 315.3070 315.4474 315.5877 315.7281 315.8684 316.0087 316.1490 316.2893 316.4296 316.5699 316.7101 316.8504 316.9906 317.1308 317.2710 317.4112 317.5514 317.6916 317.8318 317.9719 318.1121 318.2522 318.3923 318.5324 318.6725 318.8126 318.9527 319.0927 319.2328 319.3728 319.5129 319.6529 319.7929 319.9329 320.0729 320.2128 320.3528 320.4927 320.6327 320.7726 320.9125 321.0524 321.1923 321.3322 321.4721 321.6119 321.7518 321.8916 322.0314 322.1712 322.3110 322.4508 322.5906 322.7304 322.8701 323.0099 323.1496 323.2893 323.4290 323.5687 323.7084 323.8481 323.9877 324.1274 324.2670 324.4067 324.5463 324.6859 324.8255 324.9650
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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 20250818T111153.6Z 9361.466593 232 1 51.48 2 81.44 80.26 24.52 108.51 0.00 1 0.00 1 0 25 5.765e-01 3.809e-02 2.211e-01 8.860e-03 6.861796e-01 5.009263e-03 8.477775e-03 -6.000000e+00 3.499217e-01 231.50 -2.00 3.48 -2.00 321.41 0.00e+00 -6.154750e-03 2.437113e-03 1.178496e-02 -6.000000e+00 1.743879e-02 291.00 -2.00 20.00 -2.00 320.74 0.00e+00 6.326 0.004 302.00 328.00 3 2.8749e+00 1.8226e-02 1.0406e-01 -6.0000e+00 8.7515e-01 7.0449e-01 2.2705e-02 1.0945e-01 -6.0000e+00 9.4665e-01 -1.1826e+00 1.4485e-02 2.4776e-02 -6.0000e+00 5.6432e-01 5.3362e-01 6.8039e-03 1.6996e-02 -6.0000e+00 2.3660e-01 2.8274e-05 -1.8866e-04 2.7749e-04 7.0009e-05 -6.0000e+00 1.8174e-02 1.0297e-02 -1.2068e-04 12 9 8 11 40 0 99.41 23.48 0.75 0.01030 0.00888 18 3 1 5 0 2859.430 26.21 20.00 23.48 30.03 7.0 1029.36 -103306 61754 17709 900000 -10252 -10122 83011 139325 -15080 900000 42710 900000 -111236 900000 290807 23832 106038 60159 116239 94682 210856 900000 190189 52857 93396 67443 82715 -17585 14217 900000 95282 56166 86093 80911 104779 78188 55854 53507 120650 52009 79015 41237 200276 45989 45624 56125 38717 13125 39906 72867 42875 27295 30590 59790 5145 63083 22079 26117 9542 9155 39092 41693 15387 12282 24273 8129 11287 7483 28097 16816 4093 19194 -1591 4135 -674 7921 321 3169 -821 -6796 -14696 -5764 -5184 -1314 -5781 -5787 -2980 -1571 2401 -248 -890 -3979 -3589 -5656 -6327 242 -2068 -3524 895 -2981 -6357 -7307 -3824 -3771 -3469 -4750 -1380 979 578 525 4500 -1364 -101 -670 71 5018 -1534 -85 244 2714 2384 1856 4241 1476 2508 -768 1849 -2132 3979 2192 69 -730 703 -1344 524 -700 14 1273 -464 1049 -1632 -1069 -2789 -12969 1551 667 900000 -394 -357 1172 1203 -651 900000 1072 900000 -15187 900000 2510 1178 2413 2219 2463 2452 1820 900000 1791 2074 2565 2434 2466 -1311 714 900000 2549 2472 3047 3073 2984 2834 2700 3048 4165 4130 5251 4164 4149 4366 4213 4553 3676 1609 3823 5283 4552 3699 4330 6760 1057 7514 4021 4486 1853 1723 5500 6117 3240 2905 5258 2035 2718 1944 6523 4920 1480 6179 -619 1428 -222 2160 89 870 -261 -2675 -7268 -2960 -2904 -759 -3737 -3976 -2084 -1108 1616 -165 -559 -2442 -2156 -3642 -4598 190 -1747 -3418 891 -3078 -6415 -6840 -3581 -3580 -3177 -4684 -1404 1054 690 702 6370 -2161 -160 -1033 105 6839 -2267 -129 392 4374 3825 2905 6276 2168 3515 -1078 2514 -3207 6298 3947 128 -1451 1459 -3031 1232 -1743 35 3201 -1167 2478 -3723 -2297 -5985