File name: Pandora61s1_AldineTX_20250130_L2Fit_fout2c8d20241003p1-8.txt File generation date: 20250131T064414.8Z Data description: Level 2 spectral fitting results file Data file version: fout2c8p1-8 Local principal investigator: James Flynn Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 61 Spectrometer number: 1 Processing software version used: BlickP v1.8.70 Instrument operation file used: Pandora61_OF_v5d20210204.txt Instrument calibration file used: Pandora61s1_CF_v8d20241003.txt Level 1 file used: Pandora61s1_AldineTX_20250130_L1_smca1c8d20241003p1-8.txt Full location name: University Of Houston Trailer Short location name: AldineTX Country of location: United States Location latitude [deg]: 29.9011 Location longitude [deg]: -95.3262 Location altitude [m]: 8 Local noon date: 20250130 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: None First and last pixel inside fitting window: 260 402 Nominal wavelengths inside fitting window [nm]: 305.0886 305.2296 305.3705 305.5115 305.6524 305.7933 305.9342 306.0751 306.2160 306.3569 306.4978 306.6386 306.7794 306.9203 307.0611 307.2019 307.3427 307.4834 307.6242 307.7649 307.9057 308.0464 308.1871 308.3278 308.4685 308.6091 308.7498 308.8904 309.0311 309.1717 309.3123 309.4529 309.5934 309.7340 309.8746 310.0151 310.1556 310.2961 310.4366 310.5771 310.7176 310.8581 310.9985 311.1390 311.2794 311.4198 311.5602 311.7006 311.8410 311.9813 312.1217 312.2620 312.4023 312.5426 312.6829 312.8232 312.9635 313.1038 313.2440 313.3842 313.5245 313.6647 313.8049 313.9450 314.0852 314.2254 314.3655 314.5057 314.6458 314.7859 314.9260 315.0661 315.2061 315.3462 315.4862 315.6263 315.7663 315.9063 316.0463 316.1863 316.3262 316.4662 316.6062 316.7461 316.8860 317.0259 317.1658 317.3057 317.4456 317.5854 317.7253 317.8651 318.0049 318.1447 318.2845 318.4243 318.5641 318.7038 318.8436 318.9833 319.1230 319.2627 319.4024 319.5421 319.6818 319.8214 319.9611 320.1007 320.2403 320.3799 320.5195 320.6591 320.7987 320.9382 321.0778 321.2173 321.3568 321.4964 321.6359 321.7753 321.9148 322.0543 322.1937 322.3331 322.4726 322.6120 322.7514 322.8908 323.0301 323.1695 323.3088 323.4482 323.5875 323.7268 323.8661 324.0054 324.1447 324.2839 324.4232 324.5624 324.7016 324.8409 324.9801 --------------------------------------------------------------------------------------- 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: Humidity in head sensor [%], -9=no humidity signal Column 99: Pressure in head sensor [hPa], -9=no pressure signal Columns 100-242: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 243-385: 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 --------------------------------------------------------------------------------------- SS 20250130T221317.2Z 9161.925894 389 1 42.88 2 70.75 235.53 56.58 223.38 0.00 1 0.00 1 0 17 5.071e-02 5.865e-03 1.914e-02 2.627e-03 3.520481e-01 1.356442e-03 3.825705e-03 -6.000000e+00 2.976191e-02 224.77 -2.00 3.24 -2.00 319.28 0.00e+00 1.044932e-03 3.398381e-04 3.084992e-04 -6.000000e+00 1.345462e-03 284.80 -2.00 20.00 -2.00 318.49 0.00e+00 2.998 0.000 302.00 328.00 3 2.3032e+00 3.7858e-03 3.4100e-02 -6.0000e+00 7.3297e-02 4.9310e-02 4.4030e-03 1.6634e-02 -6.0000e+00 7.9702e-02 -1.5037e-02 3.0541e-03 8.2672e-03 -6.0000e+00 4.7686e-02 1.2606e-03 1.5715e-03 2.4690e-03 -6.0000e+00 2.0081e-02 1.7344e-03 -6.3343e-04 8.5649e-05 3.1954e-05 -6.0000e+00 1.5351e-03 -9.9372e-03 1.0963e-04 10 0 0 10 0 0 99.88 19.03 1.34 -0.00994 -0.01470 621 246 1 5 0 69.030 22.90 14.98 19.03 24.48 31.0 997.22 -13980 -16466 -9201 -15167 -23946 -19122 -18358 -12694 -14341 -7920 -17107 -16978 -13056 -6708 -8340 -1791 -1623 657 682 -2411 1460 -642 -29 -800 -301 -1187 713 -1025 -2813 -2266 -1675 617 2777 168 -3009 -2093 -1459 -467 117 193 1226 646 -753 759 161 579 1161 97 31 366 1161 1269 5677 508 1788 880 634 961 -167 1115 1781 2076 2255 1606 95 -76 -656 353 954 425 326 119 -61 -658 -466 -1261 -999 -1318 -1129 -1098 -542 -1476 -1236 -761 -996 -463 -163 171 -56 303 -331 208 516 452 337 536 499 20 -351 -665 -542 -33 120 -406 -834 -865 -884 -430 -38 -57 10 199 127 270 105 388 223 343 -34 -41 245 471 212 392 242 166 1188 706 428 216 -110 -21 229 20 -156 -198 273 -94 -482 -333 -415 230 -182 -584 -781 -417 -696 -1104 -818 -828 -605 -768 -420 -1021 -985 -836 -475 -697 -157 -152 64 70 -263 156 -71 -3 -97 -38 -158 93 -130 -349 -284 -226 90 431 28 -493 -341 -259 -96 29 55 377 212 -258 260 56 200 397 33 11 129 434 511 2335 214 770 393 288 473 -82 540 889 1116 1210 923 55 -42 -382 204 590 270 225 86 -44 -455 -325 -802 -584 -758 -693 -760 -422 -1174 -1054 -685 -959 -473 -174 187 -61 317 -324 187 472 413 329 533 556 25 -458 -857 -658 -37 128 -446 -982 -1078 -1159 -592 -55 -90 17 334 207 414 150 529 304 489 -52 -66 394 745 327 579 341 244 1674 1022 665 333 -179 -35 401 36 -304 -403 567 -200 -1026 -689 -826 437 -344