File name: Pandora66s1_HuntsvilleAL_20200224_L2Fit_fout2c3d20200122p1-8.txt
File generation date: 20251117T153138.5Z
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_20200224_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: 20200224
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 20200224T143518.6Z 7359.607854 3752 1 29.16 2 65.51 122.45 75.11 114.38 0.00 1 0.00 1 0 17 3.553e-01 9.210e-02 3.247e-01 7.099e-02 3.393495e-01 3.760109e-02 5.303225e-03 -6.000000e+00 2.080976e-01 225.68 -2.00 3.38 -2.00 318.87 0.00e+00 -7.688622e-03 8.426872e-03 4.302511e-03 -6.000000e+00 1.158181e-02 279.74 -2.00 20.00 -2.00 318.15 0.00e+00 2.396 0.000 302.00 328.00 3 8.8062e+00 1.0322e-01 3.5757e-02 -6.0000e+00 5.1621e-01 1.0362e-01 1.2001e-01 3.7824e-02 -6.0000e+00 5.6376e-01 -7.4884e-02 8.0742e-02 8.8571e-03 -6.0000e+00 3.3211e-01 3.9736e-02 4.0850e-02 7.8600e-03 -6.0000e+00 1.4151e-01 4.8476e-06 -2.7800e-03 2.2808e-03 4.6181e-05 -6.0000e+00 1.0507e-02 -5.3228e-03 0.0000e+00 12 8 8 10 0 0 18.42 26.32 12.53 -0.00532 -0.02621 9 9 1 5 0 3239.730 26.32 20.00 23.01 15.42 38.60 17.5 978.01 151905 -60907 900000 900000 900000 -67723 900000 -93247 900000 76822 900000 900000 900000 21419 -8022 83881 22416 900000 121084 32446 -24899 900000 62404 900000 13628 900000 34781 29691 -86392 5918 11080 72319 95612 179187 63631 31178 21962 18290 14526 23582 19471 7286 -24915 26476 3208 -5623 26926 27312 41770 8278 55241 8910 23984 16509 19128 4797 13252 49 19228 -15530 17888 -17364 17445 -4732 19042 -16349 16946 -24830 31622 5538 -5844 1212 4226 -3719 -3191 1510 31742 -9083 -25035 8705 1603 9301 -15464 1460 -10198 14514 -881 3503 -13533 16937 1355 -167 -13284 9228 14348 8376 -6970 2026 -12174 -394 -10225 178 -4687 4794 -4596 1684 416 9130 -3035 4705 367 876 -3518 1568 10159 4517 5432 -4701 7606 -5377 9643 -3443 12332 1416 8486 -5989 11637 -14536 7029 -13956 12615 -569 3956 -5743 2634 -1268 190 1923 2341 -2998 100 -908 -1886 10491 -7098 900000 900000 900000 -7016 900000 -15153 900000 5306 900000 900000 900000 1849 -1039 5793 2419 900000 8362 3501 -4836 900000 5387 900000 2294 900000 4954 4101 -32640 920 1722 6555 7924 12375 6592 4441 3792 3868 3887 6820 6471 2694 -12956 8685 1225 -2307 8252 8134 10638 3002 13353 3692 9110 7197 8504 2397 6635 26 8798 -9275 8262 -11427 9337 -3172 10685 -11490 8558 -17753 14605 3532 -4582 926 3125 -2855 -2256 971 13701 -5645 -19127 5336 1190 7106 -15329 1287 -10813 12854 -955 3742 -17153 16157 1316 -161 -12736 7329 11458 7845 -7985 2354 -17309 -491 -13251 203 -5280 5007 -5694 2072 542 11467 -4279 6575 570 1384 -5659 2255 13154 5810 6846 -6798 10341 -8301 13861 -5559 16555 2035 10769 -8376 13009 -21145 8799 -23193 17043 -911 6199 -10288 4592 -2419 367 3719 4527 -5940 184 -1619 -3298