File name: Pandora100s1_PhoenixAZ_20251231_L2Fit_fout2c4d20240611p1-8.txt
File generation date: 20260101T073711.5Z
Data description: Level 2 spectral fitting results file
Data file version: fout2c4p1-8
Local principal investigator: Lukas Valin
Network principal investigator: Alexander Cede
Instrument type: Pandora
Instrument number: 100
Spectrometer number: 1
Processing software version used: BlickP v1.8.75
Instrument operation file used: Pandora100_OF_v3d20220425.txt
Instrument calibration file used: Pandora100s1_CF_v4d20240611.txt
Level 1 file used: Pandora100s1_PhoenixAZ_20251231_L1_smca1c4d20240611p1-8.txt
Full location name: Phoenix, Arizona - Central Phoenix
Short location name: PhoenixAZ
Country of location: United States
Location latitude [deg]: 33.4580
Location longitude [deg]: -112.0466
Location altitude [m]: 339
Local noon date: 20251231
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 CF based on lab calibration session 2
First and last pixel inside fitting window: 195 337
Nominal wavelengths inside fitting window [nm]: 305.0336 305.1748 305.3160 305.4571 305.5983 305.7394 305.8805 306.0216 306.1628 306.3038 306.4449 306.5860 306.7271 306.8681 307.0092 307.1502 307.2912 307.4322 307.5732 307.7142 307.8552 307.9961 308.1371 308.2780 308.4189 308.5598 308.7008 308.8416 308.9825 309.1234 309.2643 309.4051 309.5460 309.6868 309.8276 309.9684 310.1092 310.2500 310.3908 310.5315 310.6723 310.8130 310.9537 311.0944 311.2351 311.3758 311.5165 311.6572 311.7979 311.9385 312.0791 312.2198 312.3604 312.5010 312.6416 312.7822 312.9227 313.0633 313.2038 313.3444 313.4849 313.6254 313.7659 313.9064 314.0469 314.1874 314.3278 314.4683 314.6087 314.7491 314.8895 315.0299 315.1703 315.3107 315.4511 315.5914 315.7318 315.8721 316.0124 316.1527 316.2930 316.4333 316.5736 316.7139 316.8541 316.9944 317.1346 317.2748 317.4150 317.5552 317.6954 317.8356 317.9758 318.1159 318.2561 318.3962 318.5363 318.6764 318.8165 318.9566 319.0967 319.2367 319.3768 319.5168 319.6568 319.7969 319.9369 320.0769 320.2168 320.3568 320.4968 320.6367 320.7766 320.9166 321.0565 321.1964 321.3363 321.4762 321.6160 321.7559 321.8957 322.0356 322.1754 322.3152 322.4550 322.5948 322.7345 322.8743 323.0141 323.1538 323.2935 323.4332 323.5730 323.7126 323.8523 323.9920 324.1317 324.2713 324.4109 324.5506 324.6902 324.8298 324.9694
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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: Latitude at beginning of measurement [deg], negative=South of equator, positive=North of equator, -999=no latitude retrieved
Column 8: Longitude at beginning of measurement [deg], negative=West of Greenwich, positive=East of Greenwich, -999=no longitude retrieved
Column 9: Altitude a.s.l. at beginning of measurement [m], -999=no altitude retrieved
Column 10: Data processing type index
Column 11: Solar zenith angle for center-time of measurement in degree
Column 12: Solar azimuth for center-time of measurement in degree, 0=north, increases clockwise
Column 13: Lunar zenith angle for center-time of measurement in degree
Column 14: Lunar azimuth for center-time of measurement in degree, 0=north, increases clockwise
Column 15: Pointing zenith angle in degree, absolute or relative (see next column), 999=tracker not used
Column 16: Zenith pointing mode: zenith angle is... 0=absolute, 1=relative to sun, 2=relative to moon
Column 17: Pointing azimuth in degree, increases clockwise, absolute (0=north) or relative (see next column), 999=tracker not used
Column 18: Azimuth pointing mode: like zenith angle mode but also fixed scattering angles relative to sun (3) or moon (4)
Column 19: Fitting result index: 0=no error or warning, 1, 2=warning, >2=error
Column 20: Number of function evaluations used, 0=linear fitting or fitting not successful or no fitting done
Column 21: rms of unweighted fitting residuals, -9=fitting not successful
Column 22: Normalized rms of fitting residuals weighted with independent uncertainty, -9=fitting not successful or no uncertainty used
Column 23: Expected rms based on independent uncertainty, -9=fitting not successful or no uncertainty given
Column 24: Expected normalized weighted rms based on independent uncertainty, -9=fitting not successful or no uncertainty given
Column 25: Ozone slant column amount [moles per square meter], -9e99=fitting not successful
Column 26: 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 27: 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 28: 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 29: 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 30: Ozone effective temperature [K]
Column 31: 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 32: 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 33: 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 34: Effective ozone fitting wavelength [nm], -9=fitting not successful
Column 35: 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 36: Sulfur dioxide slant column amount [moles per square meter], -9e99=fitting not successful
Column 37: 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 38: 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 39: 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 40: 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 41: Sulfur dioxide effective temperature [K]
Column 42: 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 43: 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 44: 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 45: Effective sulfur dioxide fitting wavelength [nm], -9=fitting not successful
Column 46: 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 47: Molecular scattering air mass factor used for molecular scattering subtraction before the fitting
Column 48: Estimated uncertainty of molecular scattering air mass factor, -9=molecular scattering was not subtracted before the fitting
Column 49: Lower limit used for wavelength scaling [nm]
Column 50: Upper limit used for wavelength scaling [nm]
Column 51: Order of smoothing polynomial
Column 52: Smoothing polynomial coefficient, order 0
Column 53: Independent uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 54: Structured uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 55: Common uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 56: rms-based uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 57: Smoothing polynomial coefficient, order 1
Column 58: Independent uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 59: Structured uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 60: Common uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 61: rms-based uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 62: Smoothing polynomial coefficient, order 2
Column 63: Independent uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful
Column 64: Structured uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful
Column 65: Common uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful
Column 66: rms-based uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful
Column 67: Smoothing polynomial coefficient, order 3
Column 68: Independent uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful
Column 69: Structured uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful
Column 70: Common uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful
Column 71: rms-based uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful
Column 72: Mean value of measured data inside fitting window [same units as measurements]
Column 73: Wavelength change polynomial coefficient, order 0
Column 74: Independent uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 75: Structured uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 76: Common uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 77: rms-based uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 78: L1 based wavelength change coefficient, order 0, -9=no L1 wavelength change determination
Column 79: L1 based wavelength change coefficient, order 1, -9=no L1 wavelength change determination
Column 80: 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 81: 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 82: 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 83: 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 84: 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 85: 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 86: Atmospheric variability [%], 999=no atmospheric variability was determined
Column 87: Wavelength effective temperature [°C], 999=no effective temperature given
Column 88: Estimated average residual stray light level [%] (only valid for stray light correction methods 2 and higher)
Column 89: Retrieved wavelength shift from L1 data [nm], -9=no wavelength change determination
Column 90: Retrieved total wavelength shift [nm], -9=no wavelength change fitting
Column 91: Number of bright count cycles
Column 92: Number of dark count cycles
Column 93: Effective position of filterwheel #1, 0=filterwheel not used, 1-9 are valid positions
Column 94: Effective position of filterwheel #2, 0=filterwheel not used, 1-9 are valid positions
Column 95: Sum over 2^i, 0=spectra were interpolated in time, 1=spectra are corrected for off-target signal
Column 96: Integration time [ms]
Column 97: Mean over camera offsets [deg], -9=camera not in automatic mode
Column 98: Maximum of camera offsets [deg], -9=camera not in automatic mode
Column 99: Temperature at electronics board [°C], 999=no temperature signal
Column 100: Spectrometer control temperature [°C], 999=no temperature signal
Column 101: Auxiliary spectrometer temperature [°C], 999=no temperature signal
Column 102: Temperature in head sensor [°C], 999=no temperature signal
Column 103: Humidity in head sensor [%], -9=no humidity signal
Column 104: Pressure in head sensor [hPa], -9=no pressure signal
Columns 105-247: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting
Columns 248-390: 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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