File name: Pandora71s1_GreenbeltMD_20250219_L2Fit_fout2c1d20220202p1-8.txt File generation date: 20250220T052839.4Z Data description: Level 2 spectral fitting results file Data file version: fout2c1p1-8 Local principal investigator: Tom Hanisco Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 71 Spectrometer number: 1 Processing software version used: BlickP v1.8.70 Instrument operation file used: Pandora71_OF_v7d20201007.txt Instrument calibration file used: Pandora71s1_CF_v1d20220202.txt Level 1 file used: Pandora71s1_GreenbeltMD_20250219_L1_smca1c1d20220202p1-8.txt Full location name: Goddard Space Flight Center Short location name: GreenbeltMD Country of location: USA Location latitude [deg]: 38.9926 Location longitude [deg]: -76.8396 Location altitude [m]: 90 Local noon date: 20250219 Notes on s-number (L1 configuration): Corrections NOT applied although requested by the s-number are blind pixel subtraction, 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: 232 374 Nominal wavelengths inside fitting window [nm]: 305.0745 305.2151 305.3557 305.4964 305.6370 305.7776 305.9182 306.0587 306.1993 306.3399 306.4804 306.6209 306.7615 306.9020 307.0425 307.1830 307.3234 307.4639 307.6043 307.7448 307.8852 308.0256 308.1660 308.3064 308.4468 308.5872 308.7276 308.8679 309.0083 309.1486 309.2889 309.4292 309.5695 309.7098 309.8501 309.9903 310.1306 310.2708 310.4110 310.5512 310.6914 310.8316 310.9718 311.1120 311.2521 311.3923 311.5324 311.6725 311.8126 311.9527 312.0928 312.2329 312.3730 312.5130 312.6531 312.7931 312.9331 313.0731 313.2131 313.3531 313.4931 313.6330 313.7730 313.9129 314.0529 314.1928 314.3327 314.4726 314.6124 314.7523 314.8922 315.0320 315.1718 315.3117 315.4515 315.5913 315.7311 315.8708 316.0106 316.1503 316.2901 316.4298 316.5695 316.7092 316.8489 316.9886 317.1283 317.2679 317.4076 317.5472 317.6868 317.8264 317.9660 318.1056 318.2452 318.3848 318.5243 318.6639 318.8034 318.9429 319.0824 319.2219 319.3614 319.5009 319.6403 319.7798 319.9192 320.0586 320.1980 320.3374 320.4768 320.6162 320.7555 320.8949 321.0342 321.1736 321.3129 321.4522 321.5915 321.7307 321.8700 322.0093 322.1485 322.2877 322.4269 322.5662 322.7054 322.8445 322.9837 323.1229 323.2620 323.4011 323.5403 323.6794 323.8185 323.9576 324.0966 324.2357 324.3747 324.5138 324.6528 324.7918 324.9308 --------------------------------------------------------------------------------------- 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: Spectrometer control temperature [°C], 999=no temperature signal Column 95: Auxiliary spectrometer temperature [°C], 999=no temperature signal Column 96: Temperature in head sensor [°C], 999=no temperature signal Column 97: Temperature at electronics board 1 [°C], 999=no temperature signal Column 98: Temperature at electronics board 2 [°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 --------------------------------------------------------------------------------------- SS 20250219T192053.4Z 9181.806174 503 1 54.23 2 57.22 215.65 139.42 280.95 0.00 1 0.00 1 0 57 3.527e-02 2.381e-02 4.528e-03 1.561e-03 2.695421e-01 7.199846e-04 1.652294e-03 -6.000000e+00 1.849769e-02 225.19 -2.00 3.47 -2.00 317.19 0.00e+00 1.162469e-03 1.008734e-04 8.752294e-05 -6.000000e+00 7.510253e-04 276.65 -2.00 20.00 -2.00 316.88 0.00e+00 1.841 0.000 302.00 328.00 3 3.0360e+00 1.8913e-03 2.0399e-02 -6.0000e+00 4.6183e-02 -6.4356e-05 2.1577e-03 8.9937e-03 -6.0000e+00 5.0472e-02 5.7263e-03 1.3277e-03 4.3217e-03 -6.0000e+00 2.9703e-02 -5.6713e-03 6.6127e-04 1.3134e-03 -6.0000e+00 1.3022e-02 3.0808e-03 4.4211e-02 3.4336e-05 8.6100e-07 -6.0000e+00 7.1306e-04 9.7652e-02 0.0000e+00 12 9 8 11 4 0 98.10 29.08 1.49 0.09765 0.42988 67 7 1 8 0 809.041 19.82 29.08 1.26 25.25 25.25 7.4 990.90 -6356 -13125 -9475 -7404 1908 -1103 -1686 -11356 -9242 -1647 -3271 2859 2607 -1449 3047 1350 2729 3342 -2465 1630 822 617 2406 1321 -2900 -3686 -5546 3335 -1218 5936 2002 -11326 -7592 -6858 -3596 1448 2957 1229 -234 1853 828 746 2682 860 569 -2137 -2459 1091 1040 720 3266 28 477 2477 586 -1334 -1319 -1638 879 1802 5149 3996 -3382 -1942 -7666 -3441 2417 1523 3215 1234 2888 1047 -1902 -2961 -8029 -5555 -1534 -2456 -356 -1995 -4310 -698 302 2232 1916 3809 3178 922 1576 -4241 -4889 -2316 -1969 -1013 3002 3884 1914 402 -3033 -4992 -3219 1790 -1983 -105 -608 -1234 1192 2199 2986 969 1178 -1884 -4085 -2744 -3277 -752 1068 868 949 1573 1675 864 2714 -4041 -2082 80 303 1417 -709 -700 -2642 863 1235 -734 2752 2943 1056 1097 -653 -2825 -807 -2009 900000 -760 -1395 -961 -785 216 -143 -234 -1596 -1299 -258 -598 574 590 -339 728 307 639 809 -651 391 213 169 674 377 -782 -928 -1391 862 -350 1787 665 -3610 -2292 -2310 -1369 649 1421 646 -128 1036 470 417 1508 477 308 -1170 -1328 617 643 463 2210 18 314 1664 394 -884 -867 -1107 636 1415 4267 3390 -2664 -1420 -5631 -2598 2083 1329 2876 1115 2468 848 -1498 -2119 -5622 -4015 -1261 -2115 -335 -2043 -4562 -728 337 2578 2293 4500 3643 978 1639 -4136 -4613 -2317 -2054 -1160 3729 4872 2522 497 -3511 -5396 -3556 2182 -2556 -140 -799 -1696 1735 3377 4658 1464 1653 -2630 -5349 -3596 -4493 -1025 1551 1295 1371 2209 2417 1168 3534 -5102 -2572 108 438 2018 -1048 -1048 -4113 1419 2142 -1228 4902 4998 1873 1864 -1086 -4571 -1335 -3560 900000 SS 20250219T192534.1Z 9181.809422 505 1 13.33 2 57.76 216.85 140.28 281.85 0.00 1 0.00 1 0 65 4.211e-02 2.609e-02 1.498e-02 6.104e-03 2.767364e-01 2.818497e-03 1.692327e-03 -6.000000e+00 2.208970e-02 225.19 -2.00 3.47 -2.00 316.77 0.00e+00 1.370945e-03 3.541307e-04 8.121498e-05 -6.000000e+00 8.968397e-04 276.65 -2.00 20.00 -2.00 316.47 0.00e+00 1.868 0.000 302.00 328.00 3 4.3461e+00 7.3553e-03 2.0739e-02 -6.0000e+00 5.5151e-02 1.7513e-02 8.3880e-03 9.1891e-03 -6.0000e+00 6.0272e-02 2.7512e-03 5.0474e-03 4.3754e-03 -6.0000e+00 3.5471e-02 -4.6430e-03 2.4583e-03 1.3103e-03 -6.0000e+00 1.5552e-02 7.9246e-04 4.4164e-02 1.3206e-04 1.0060e-06 -6.0000e+00 8.5160e-04 9.7308e-02 0.0000e+00 12 9 9 12 5 1 99.95 28.98 1.59 0.09731 0.42918 5 3 2 8 0 2221.286 20.37 28.98 1.40 25.25 25.25 7.4 991.00 -10400 -14923 -11404 -11987 -7272 678 -4130 -12638 -16167 1846 -3164 5243 2354 -1002 1805 1275 4677 4868 -2218 2591 4384 -143 5952 1347 -2393 -3205 -1351 -1213 -2129 10897 4365 -9818 -6378 -7198 -3345 596 4537 -586 -804 2997 1054 2089 3384 867 -653 -1324 -3740 3071 1975 1681 1735 -746 -77 2261 1182 -1688 -912 -1172 1466 2443 4778 3269 -3250 -565 -7788 -5081 2275 1776 3232 1166 2089 371 -3022 -2988 -7940 -6326 -1510 -1928 3 -3236 -4286 -535 938 3103 2380 3860 3344 -15 1340 -4278 -5375 -2440 -2243 -1913 3476 5054 1876 373 -3652 -4250 -3355 2055 -1653 -632 -22 -648 803 2445 3722 1581 1321 -1400 -3785 -3389 -3338 212 1282 1120 1379 2130 1206 617 2653 -3797 -2883 -514 6 1822 -1216 -1069 -2782 592 1575 -1140 2495 2993 1188 1620 -34 -3297 -896 -1780 900000 -1560 -1945 -1419 -1598 -1082 104 -706 -2159 -2925 336 -635 1132 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