File name: Pandora170s1_StGeorge_20241215_L2Fit_fwvt1c11d20231109p1-8.txt File generation date: 20250822T121025.6Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c11p1-8 Local principal investigator: Vitali Fioletov Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 170 Spectrometer number: 1 Processing software version used: BlickP v1.8.75 Instrument operation file used: Pandora170_OF_v11d20200302.txt Instrument calibration file used: Pandora170s1_CF_v11d20231109.txt Level 1 file used: Pandora170s1_StGeorge_20241215_L1_smca1c11d20231109p1-8.txt Full location name: University of Toronto - Downtown (St. George) campus Short location name: StGeorge Country of location: Canada Location latitude [deg]: 43.6605 Location longitude [deg]: -79.3986 Location altitude [m]: 176 Local noon date: 20241215 Notes on s-number (L1 configuration): Corrections NOT applied although requested by the s-number are latency correction, radiometric temperature correction, matrix method stray light correction (replaced by simple method) Data caveats: None First and last pixel inside fitting window: 1633 1782 Nominal wavelengths inside fitting window [nm]: 492.0067 492.1280 492.2493 492.3705 492.4918 492.6130 492.7342 492.8554 492.9766 493.0978 493.2189 493.3400 493.4612 493.5823 493.7033 493.8244 493.9454 494.0665 494.1875 494.3085 494.4295 494.5504 494.6714 494.7923 494.9132 495.0341 495.1550 495.2759 495.3967 495.5175 495.6383 495.7591 495.8799 496.0007 496.1214 496.2422 496.3629 496.4836 496.6042 496.7249 496.8455 496.9662 497.0868 497.2074 497.3280 497.4485 497.5691 497.6896 497.8101 497.9306 498.0511 498.1715 498.2920 498.4124 498.5328 498.6532 498.7736 498.8939 499.0143 499.1346 499.2549 499.3752 499.4955 499.6157 499.7360 499.8562 499.9764 500.0966 500.2168 500.3369 500.4570 500.5772 500.6973 500.8174 500.9374 501.0575 501.1775 501.2975 501.4175 501.5375 501.6575 501.7774 501.8974 502.0173 502.1372 502.2571 502.3769 502.4968 502.6166 502.7364 502.8562 502.9760 503.0958 503.2155 503.3353 503.4550 503.5747 503.6943 503.8140 503.9337 504.0533 504.1729 504.2925 504.4121 504.5316 504.6512 504.7707 504.8902 505.0097 505.1292 505.2486 505.3680 505.4875 505.6069 505.7263 505.8456 505.9650 506.0843 506.2036 506.3229 506.4422 506.5615 506.6807 506.8000 506.9192 507.0384 507.1576 507.2767 507.3959 507.5150 507.6341 507.7532 507.8723 507.9913 508.1104 508.2294 508.3484 508.4674 508.5864 508.7053 508.8243 508.9432 509.0621 509.1810 509.2999 509.4187 509.5375 509.6564 509.7752 509.8939 --------------------------------------------------------------------------------------- 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: Water vapor slant column amount [moles per square meter], -9e99=fitting not successful Column 23: 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 24: 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 25: 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 26: 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 27: Water vapor effective temperature [K] Column 28: 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 29: 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 30: 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 31: Effective water vapor fitting wavelength [nm], -9=fitting not successful Column 32: 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 33: Nitrogen dioxide slant column amount [moles per square meter], -9e99=fitting not successful Column 34: 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 35: 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 36: 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 37: 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 38: Nitrogen dioxide effective temperature [K] Column 39: 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 40: 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 41: 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 42: Effective nitrogen dioxide fitting wavelength [nm], -9=fitting not successful Column 43: 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 44: Ozone slant column amount [moles per square meter], -9e99=fitting not successful Column 45: 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 46: 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 47: 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 48: 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 49: Ozone effective temperature [K] Column 50: 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 51: 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 52: 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 53: Effective ozone fitting wavelength [nm], -9=fitting not successful Column 54: 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 55: Molecular scattering air mass factor used for molecular scattering subtraction before the fitting Column 56: Estimated uncertainty of molecular scattering air mass factor, -9=molecular scattering was not subtracted before the fitting Column 57: Lower limit used for wavelength scaling [nm] Column 58: Upper limit used for wavelength scaling [nm] Column 59: Order of smoothing polynomial Column 60: Smoothing polynomial coefficient, order 0 Column 61: Independent uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 62: Structured uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 63: Common uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 64: rms-based uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 65: Smoothing polynomial coefficient, order 1 Column 66: Independent uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 67: Structured uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 68: Common uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 69: rms-based uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 70: Mean value of measured data inside fitting window [same units as measurements] Column 71: Wavelength change polynomial coefficient, order 0 Column 72: Independent uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 73: Structured uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 74: Common uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 75: rms-based uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 76: L1 based wavelength change coefficient, order 0, -9=no L1 wavelength change determination Column 77: L1 based wavelength change coefficient, order 1, -9=no L1 wavelength change determination Column 78: 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 79: 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 80: 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 81: 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 82: 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 83: 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 84: Atmospheric variability [%], 999=no atmospheric variability was determined Column 85: Wavelength effective temperature [°C], 999=no effective temperature given Column 86: Estimated average residual stray light level [%] (only valid for stray light correction methods 2 and higher) Column 87: Retrieved wavelength shift from L1 data [nm], -9=no wavelength change determination Column 88: Retrieved total wavelength shift [nm], -9=no wavelength change fitting Column 89: Number of bright count cycles Column 90: Number of dark count cycles Column 91: Effective position of filterwheel #1, 0=filterwheel not used, 1-9 are valid positions Column 92: Effective position of filterwheel #2, 0=filterwheel not used, 1-9 are valid positions Column 93: Sum over 2^i, 0=spectra were interpolated in time, 1=spectra are corrected for off-target signal Column 94: Integration time [ms] Column 95: Temperature at electronics board [°C], 999=no temperature signal Column 96: Spectrometer control temperature [°C], 999=no temperature signal Column 97: Auxiliary spectrometer temperature [°C], 999=no temperature signal Column 98: Temperature in head sensor [°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 101-250: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 251-400: 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 --------------------------------------------------------------------------------------- SQ 20241215T133637.8Z 9115.567104 305 1 49.10 2 83.31 131.49 92.20 312.64 0.00 1 0.00 1 0 15 4.492e-03 4.451e-03 8.349e-04 8.338e-04 5.103448e+03 4.863587e+01 3.742499e+02 -6.000000e+00 2.290580e+02 273.83 -2.00 20.00 -2.00 505.30 0.00e+00 1.309068e-03 2.211736e-05 7.290408e-05 -6.000000e+00 1.212978e-04 273.83 -2.00 20.00 -2.00 500.62 0.00e+00 7.421940e-01 1.607509e-02 3.870704e-02 -6.000000e+00 8.741753e-02 222.23 -2.00 3.57 -2.00 502.18 0.00e+00 7.831 0.009 489.00 513.00 1 6.9771e+00 1.2230e-03 1.1649e-02 -6.0000e+00 6.6561e-03 -4.0314e-03 3.2177e-04 1.1101e-03 -6.0000e+00 1.7750e-03 5.6642e-04 2.3006e-04 6.7599e-05 5.8876e-05 -6.0000e+00 3.7883e-04 -6.1445e-03 -6.9856e-06 11 9 0 11 32 0 90.50 22.53 1.08 -0.00614 -0.00455 13 3 1 4 0 3776.540 26.41 20.00 22.53 6.52 12.7 1013.99 900000 -939 -697 -284 -303 262 699 689 491 213 234 -29 -49 -431 -289 -743 -524 104 321 89 361 119 32 454 334 180 455 486 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-246 -212 -121 -139 309 368 429 854 736 865 623 827 194 -107 236 168 -103 161 133 266 391 340 60 114 67 -524 -852 -222 -11 -124 284 81 262 313 99 15 496 321 -214 -441 -804 -960 SQ 20241215T183407.2Z 9115.773695 474 1 51.49 2 69.51 199.84 107.61 13.32 0.00 1 0.00 1 0 15 3.633e-03 3.592e-03 7.886e-04 7.872e-04 2.486508e+03 4.351585e+01 1.930404e+02 -6.000000e+00 1.852613e+02 273.81 -2.00 20.00 -2.00 505.26 0.00e+00 7.528309e-04 2.089535e-05 4.055976e-05 -6.000000e+00 9.810937e-05 273.81 -2.00 20.00 -2.00 500.48 0.00e+00 2.088198e-01 1.523548e-02 1.833281e-02 -6.000000e+00 7.071966e-02 222.24 -2.00 3.57 -2.00 502.06 0.00e+00 2.828 0.000 489.00 513.00 1 7.6561e+00 1.1607e-03 4.3707e-03 -6.0000e+00 5.3844e-03 9.6567e-03 3.0772e-04 4.9641e-04 -6.0000e+00 1.4362e-03 6.0757e-04 3.7050e-04 6.4452e-05 3.0693e-05 -6.0000e+00 3.0643e-04 -3.1923e-03 -3.8742e-05 11 1 0 11 32 0 99.49 22.54 1.04 -0.00319 -0.00062 16 3 1 4 0 3217.350 26.41 20.00 22.54 8.79 12.8 1010.42 900000 -844 -575 -318 -194 291 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