File name: Pandora66s1_HuntsvilleAL_20200123_L2Fit_fout2c3d20200122p1-8.txt
File generation date: 20251117T152454.8Z
Data description: Level 2 spectral fitting results file
Data file version: fout2c3p1-8
Local principal investigator: Nader Abuhassan
Network principal investigator: Alexander Cede
Instrument type: Pandora
Instrument number: 66
Spectrometer number: 1
Processing software version used: BlickP v1.8.75
Instrument operation file used: Pandora66_OF_v1d20200114.txt
Instrument calibration file used: Pandora66s1_CF_v3d20200122.txt
Level 1 file used: Pandora66s1_HuntsvilleAL_20200123_L1_smca1c3d20200122p1-8.txt
Full location name: The University of Alabama in Huntsville- SWIRLL
Short location name: HuntsvilleAL
Country of location: United States
Location latitude [deg]: 34.7252
Location longitude [deg]: -86.6464
Location altitude [m]: 221
Local noon date: 20200123
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 1, fieldcal refday 20200921
First and last pixel inside fitting window: 253 395
Nominal wavelengths inside fitting window [nm]: 305.1019 305.2425 305.3831 305.5238 305.6644 305.8050 305.9456 306.0862 306.2268 306.3673 306.5079 306.6484 306.7890 306.9295 307.0700 307.2105 307.3510 307.4914 307.6319 307.7723 307.9128 308.0532 308.1936 308.3340 308.4744 308.6148 308.7551 308.8955 309.0358 309.1762 309.3165 309.4568 309.5971 309.7374 309.8777 310.0179 310.1582 310.2984 310.4386 310.5789 310.7191 310.8593 310.9994 311.1396 311.2798 311.4199 311.5600 311.7002 311.8403 311.9804 312.1205 312.2605 312.4006 312.5407 312.6807 312.8207 312.9607 313.1007 313.2407 313.3807 313.5207 313.6606 313.8006 313.9405 314.0805 314.2204 314.3603 314.5002 314.6400 314.7799 314.9197 315.0596 315.1994 315.3392 315.4790 315.6188 315.7586 315.8984 316.0381 316.1779 316.3176 316.4573 316.5970 316.7367 316.8764 317.0161 317.1558 317.2954 317.4351 317.5747 317.7143 317.8539 317.9935 318.1331 318.2727 318.4122 318.5518 318.6913 318.8308 318.9703 319.1098 319.2493 319.3888 319.5282 319.6677 319.8071 319.9465 320.0860 320.2254 320.3647 320.5041 320.6435 320.7828 320.9222 321.0615 321.2008 321.3401 321.4794 321.6187 321.7580 321.8972 322.0365 322.1757 322.3149 322.4542 322.5934 322.7325 322.8717 323.0109 323.1500 323.2892 323.4283 323.5674 323.7065 323.8456 323.9847 324.1238 324.2628 324.4019 324.5409 324.6799 324.8189 324.9579
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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: Azimuth motor temperature [°C], 999=no temperature signal
Column 99: Humidity in head sensor [%], -9=no humidity signal
Column 100: Pressure in head sensor [hPa], -9=no pressure signal
Columns 101-243: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting
Columns 244-386: 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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SU 20200123T221320.6Z 7327.925933 8727 1 29.23 2 81.15 238.87 92.64 243.11 0.00 1 0.00 1 0 88 7.702e-01 3.861e-01 5.649e-01 1.950e-01 -2.303915e-01 1.115800e-01 3.275823e-02 -6.000000e+00 4.583578e-01 224.48 -2.00 3.38 -2.00 319.00 0.00e+00 6.152478e-02 1.928828e-02 3.672282e-02 -6.000000e+00 2.462343e-02 279.48 -2.00 20.00 -2.00 318.42 0.00e+00 6.151 0.003 302.00 328.00 3 7.2389e+00 2.9410e-01 2.0395e-01 -6.0000e+00 1.1395e+00 -4.9439e-01 3.2328e-01 2.5608e-01 -6.0000e+00 1.2512e+00 2.9990e-01 1.8254e-01 2.8557e-02 -6.0000e+00 7.3497e-01 -1.1950e-01 1.0408e-01 8.8669e-02 -6.0000e+00 3.1218e-01 1.3893e-06 -7.1280e-02 5.9322e-03 4.9292e-04 -6.0000e+00 2.4041e-02 -1.7715e-02 0.0000e+00 12 12 8 10 0 0 18.15 26.41 23.13 -0.01771 -0.55335 8 8 1 5 0 3550.220 26.41 20.00 23.18 14.65 36.30 12.5 995.31 -112005 900000 -42628 900000 -69689 211524 -33887 900000 96036 900000 -53004 900000 900000 900000 900000 -45660 900000 -50504 109562 19299 132163 -27127 900000 900000 900000 68164 900000 44712 57154 -63030 83169 -36601 900000 5415 900000 148948 900000 22233 900000 900000 47032 -48244 152788 17410 900000 71847 194111 69490 64395 323057 78856 900000 171108 53713 92936 900000 28138 248576 4181 20031 21945 74346 49978 42840 61751 82333 164676 138031 15180 69475 34875 66476 14479 63131 29896 49706 37515 103910 169177 139142 -8091 35729 26213 -22236 35466 67756 4592 19225 24569 55026 92892 49222 -89978 91379 43236 21511 73464 -5526 7595 -11760 28572 5455 70752 9403 36080 -6666 10408 21055 54505 37987 31875 6488 18376 16883 27661 50399 1706 -7729 11735 -18546 545 39158 17265 23420 19925 78963 40536 62230 3594 26852 7338 21543 -25455 3371 -35314 -17088 -13586 -16398 -7308 -7170 20095 19984 7427 -22457 900000 -8547 900000 -33379 40055 -13966 900000 18186 900000 -13801 900000 900000 900000 900000 -8646 900000 -16139 20747 4568 25027 -11180 900000 900000 900000 12908 900000 8467 10823 -18649 15749 -9530 900000 1282 900000 28205 900000 5789 900000 900000 8906 -24552 28932 4945 900000 13605 36757 16448 18291 61175 22399 900000 32401 17800 22291 900000 12322 47071 2128 8060 8311 17832 16404 16225 22656 30142 31183 33108 11139 28066 16510 22659 8054 25503 16984 24119 20868 31483 32036 26348 -5745 16689 14230 -20527 20148 31648 3913 14789 19482 35167 46907 38448 -275623 50758 33772 18585 35242 -5101 6382 -13222 24009 6392 48232 10906 30745 -8363 10963 21430 46789 38664 36593 10060 26097 24976 36993 51893 2645 -11891 13471 -27437 684 38558 22273 31875 30184 72770 51333 65205 6040 34322 10943 27791 -54228 5545 -87350 -35391 -27173 -34739 -15049 -15698 35198 36897 16174