File name: Pandora100s1_PhoenixAZ_20260107_L2Fit_fwvt1c4d20240611p1-8.txt
File generation date: 20260108T074155.9Z
Data description: Level 2 spectral fitting results file
Data file version: fwvt1c4p1-8
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_20260107_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: 20260107
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: 1612 1761
Nominal wavelengths inside fitting window [nm]: 492.0525 492.1739 492.2953 492.4167 492.5380 492.6593 492.7807 492.9020 493.0233 493.1445 493.2658 493.3870 493.5083 493.6295 493.7507 493.8718 493.9930 494.1141 494.2352 494.3563 494.4774 494.5985 494.7196 494.8406 494.9616 495.0826 495.2036 495.3246 495.4455 495.5665 495.6874 495.8083 495.9292 496.0500 496.1709 496.2917 496.4126 496.5334 496.6541 496.7749 496.8957 497.0164 497.1371 497.2578 497.3785 497.4992 497.6198 497.7405 497.8611 497.9817 498.1023 498.2228 498.3434 498.4639 498.5844 498.7049 498.8254 498.9459 499.0663 499.1867 499.3072 499.4276 499.5479 499.6683 499.7886 499.9090 500.0293 500.1496 500.2699 500.3901 500.5104 500.6306 500.7508 500.8710 500.9912 501.1113 501.2315 501.3516 501.4717 501.5918 501.7119 501.8319 501.9520 502.0720 502.1920 502.3120 502.4320 502.5519 502.6719 502.7918 502.9117 503.0316 503.1514 503.2713 503.3911 503.5110 503.6308 503.7505 503.8703 503.9901 504.1098 504.2295 504.3492 504.4689 504.5886 504.7082 504.8278 504.9475 505.0670 505.1866 505.3062 505.4257 505.5453 505.6648 505.7843 505.9037 506.0232 506.1427 506.2621 506.3815 506.5009 506.6203 506.7396 506.8589 506.9783 507.0976 507.2169 507.3361 507.4554 507.5746 507.6938 507.8131 507.9322 508.0514 508.1706 508.2897 508.4088 508.5279 508.6470 508.7661 508.8851 509.0041 509.1231 509.2421 509.3611 509.4801 509.5990 509.7180 509.8369 509.9558
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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: Water vapor slant column amount [moles per square meter], -9e99=fitting not successful
Column 26: Independent uncertainty of water vapor 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 water vapor 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 water vapor 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 water vapor 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: Water vapor effective temperature [K]
Column 31: Independent uncertainty of water vapor 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 water vapor 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 water vapor 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 water vapor fitting wavelength [nm], -9=fitting not successful
Column 35: Diffuse correction applied before fitting at effective fitting wavelength for water vapor [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction
Column 36: Nitrogen dioxide slant column amount [moles per square meter], -9e99=fitting not successful
Column 37: Independent uncertainty of nitrogen 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 nitrogen 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 nitrogen 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 nitrogen 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: Nitrogen dioxide effective temperature [K]
Column 42: Independent uncertainty of nitrogen 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 nitrogen 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 nitrogen 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 nitrogen dioxide fitting wavelength [nm], -9=fitting not successful
Column 46: Diffuse correction applied before fitting at effective fitting wavelength for nitrogen dioxide [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction
Column 47: Ozone slant column amount [moles per square meter], -9e99=fitting not successful
Column 48: 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 49: 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 50: 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 51: 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 52: Ozone effective temperature [K]
Column 53: 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 54: 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 55: 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 56: Effective ozone fitting wavelength [nm], -9=fitting not successful
Column 57: 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 58: Molecular scattering air mass factor used for molecular scattering subtraction before the fitting
Column 59: Estimated uncertainty of molecular scattering air mass factor, -9=molecular scattering was not subtracted before the fitting
Column 60: Lower limit used for wavelength scaling [nm]
Column 61: Upper limit used for wavelength scaling [nm]
Column 62: Order of smoothing polynomial
Column 63: Smoothing polynomial coefficient, order 0
Column 64: Independent uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 65: Structured uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 66: Common uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 67: rms-based uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 68: Smoothing polynomial coefficient, order 1
Column 69: Independent uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 70: Structured uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 71: Common uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 72: rms-based uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 73: Mean value of measured data inside fitting window [same units as measurements]
Column 74: Wavelength change polynomial coefficient, order 0
Column 75: Independent uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 76: Structured uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 77: Common uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 78: rms-based uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 79: L1 based wavelength change coefficient, order 0, -9=no L1 wavelength change determination
Column 80: L1 based wavelength change coefficient, order 1, -9=no L1 wavelength change determination
Column 81: 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 82: 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 83: 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 84: 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 85: 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 86: 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 87: Atmospheric variability [%], 999=no atmospheric variability was determined
Column 88: Wavelength effective temperature [°C], 999=no effective temperature given
Column 89: Estimated average residual stray light level [%] (only valid for stray light correction methods 2 and higher)
Column 90: Retrieved wavelength shift from L1 data [nm], -9=no wavelength change determination
Column 91: Retrieved total wavelength shift [nm], -9=no wavelength change fitting
Column 92: Number of bright count cycles
Column 93: Number of dark count cycles
Column 94: Effective position of filterwheel #1, 0=filterwheel not used, 1-9 are valid positions
Column 95: Effective position of filterwheel #2, 0=filterwheel not used, 1-9 are valid positions
Column 96: Sum over 2^i, 0=spectra were interpolated in time, 1=spectra are corrected for off-target signal
Column 97: Integration time [ms]
Column 98: Mean over camera offsets [deg], -9=camera not in automatic mode
Column 99: Maximum of camera offsets [deg], -9=camera not in automatic mode
Column 100: Temperature at electronics board [°C], 999=no temperature signal
Column 101: Spectrometer control temperature [°C], 999=no temperature signal
Column 102: Auxiliary spectrometer temperature [°C], 999=no temperature signal
Column 103: Temperature in head sensor [°C], 999=no temperature signal
Column 104: Humidity in head sensor [%], -9=no humidity signal
Column 105: Pressure in head sensor [hPa], -9=no pressure signal
Columns 106-255: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting
Columns 256-405: 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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