File name: Pandora31s1_CharlesCityVA_20230202_L2Fit_fout2c2d20200727p1-8.txt File generation date: 20251126T122356.1Z Data description: Level 2 spectral fitting results file Data file version: fout2c2p1-8 Local principal investigator: Vickie Connors Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 31 Spectrometer number: 1 Processing software version used: BlickP v1.8.75 Instrument operation file used: Pandora31_OF_v4d20190916.txt Instrument calibration file used: Pandora31s1_CF_v2d20200727.txt Level 1 file used: Pandora31s1_CharlesCityVA_20230202_L1_smca1c2d20200727p1-8.txt Full location name: Richmond VCU Short location name: CharlesCityVA Country of location: USA Location latitude [deg]: 37.3260 Location longitude [deg]: -77.2057 Location altitude [m]: 6 Local noon date: 20230202 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: None First and last pixel inside fitting window: 253 395 Nominal wavelengths inside fitting window [nm]: 305.1347 305.2753 305.4159 305.5564 305.6970 305.8375 305.9780 306.1185 306.2590 306.3995 306.5400 306.6804 306.8209 306.9613 307.1018 307.2422 307.3826 307.5230 307.6633 307.8037 307.9441 308.0844 308.2248 308.3651 308.5054 308.6457 308.7860 308.9262 309.0665 309.2068 309.3470 309.4872 309.6274 309.7677 309.9078 310.0480 310.1882 310.3284 310.4685 310.6086 310.7488 310.8889 311.0290 311.1691 311.3092 311.4492 311.5893 311.7293 311.8694 312.0094 312.1494 312.2894 312.4294 312.5693 312.7093 312.8492 312.9892 313.1291 313.2690 313.4089 313.5488 313.6887 313.8286 313.9684 314.1083 314.2481 314.3879 314.5277 314.6675 314.8073 314.9471 315.0868 315.2266 315.3663 315.5061 315.6458 315.7855 315.9252 316.0649 316.2045 316.3442 316.4838 316.6235 316.7631 316.9027 317.0423 317.1819 317.3214 317.4610 317.6006 317.7401 317.8796 318.0191 318.1586 318.2981 318.4376 318.5771 318.7165 318.8560 318.9954 319.1348 319.2742 319.4136 319.5530 319.6924 319.8318 319.9711 320.1104 320.2498 320.3891 320.5284 320.6677 320.8070 320.9462 321.0855 321.2247 321.3639 321.5032 321.6424 321.7816 321.9207 322.0599 322.1991 322.3382 322.4774 322.6165 322.7556 322.8947 323.0338 323.1729 323.3119 323.4510 323.5900 323.7290 323.8681 324.0071 324.1460 324.2850 324.4240 324.5630 324.7019 324.8408 324.9797 --------------------------------------------------------------------------------------- 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 20230202T180809.2Z 8433.755662 426 1 7.58 2 55.11 193.35 103.43 40.28 0.00 1 0.00 1 0 17 1.276e-02 7.576e-03 7.358e-03 4.272e-03 1.996036e-01 2.144189e-03 2.383273e-03 -6.000000e+00 7.187215e-03 224.70 -2.00 3.44 -2.00 315.66 0.00e+00 6.026581e-04 1.949948e-04 2.405978e-05 -6.000000e+00 2.931442e-04 278.36 -2.00 20.00 -2.00 315.36 0.00e+00 1.743 0.000 302.00 328.00 3 5.4475e+00 5.5148e-03 1.9936e-02 -6.0000e+00 1.7863e-02 1.5751e-02 6.1726e-03 9.8850e-03 -6.0000e+00 1.9552e-02 1.2034e-02 3.5450e-03 4.8973e-03 -6.0000e+00 1.1521e-02 -5.8765e-03 1.5991e-03 1.3962e-03 -6.0000e+00 4.8006e-03 3.2668e-04 -1.7591e-05 1.2262e-04 1.7772e-05 -6.0000e+00 3.4996e-04 6.7545e-03 8.0548e-05 12 9 1 12 33 1 999.00 22.65 0.36 0.00675 0.00662 2 4 1 5 0 2453.810 25.68 20.00 22.65 12.44 32.8 943.28 1868 716 -865 -4674 -2961 873 3060 4639 2496 53 -3605 2268 -4095 -1498 616 929 -780 -296 2 -121 -767 338 1283 835 -160 805 -966 -796 685 239 -1202 4500 -536 -988 -3863 1464 -1406 -674 821 -1936 -963 104 -1460 -1162 210 -291 288 -728 257 2253 -676 260 701 1136 1632 446 19 1689 -238 1207 -99 1008 2624 -12 363 302 -319 96 -701 797 231 893 21 1272 -354 330 -362 -1042 -675 -1894 190 -450 -1399 -888 -1102 -251 -727 -325 -349 -1100 388 -967 12 802 175 243 159 642 -103 308 -321 -318 92 -190 -395 -1046 -618 -166 212 190 93 227 -271 302 -365 866 42 340 372 519 -345 199 495 -273 1094 1069 679 652 996 394 -545 -3 -709 -105 -64 -72 281 -73 -869 -96 154 -93 -619 470 189 -226 -1150 -664 191 708 1164 679 15 -1021 644 -1346 -532 234 367 -318 -123 1 -53 -336 147 568 385 -77 387 -460 -357 292 103 -547 2062 -266 -482 -1834 684 -731 -392 532 -1385 -712 78 -1121 -891 159 -220 213 -531 183 1609 -511 203 563 935 1356 378 17 1415 -200 1012 -87 916 2468 -12 344 269 -275 82 -640 774 234 920 21 1261 -337 292 -304 -863 -584 -1774 187 -469 -1512 -987 -1283 -302 -902 -407 -435 -1336 444 -1054 13 820 187 275 191 809 -133 388 -389 -370 105 -225 -491 -1341 -812 -223 292 271 134 328 -381 404 -466 1069 53 437 500 719 -485 277 677 -365 1409 1338 831 808 1277 524 -745 -5 -991 -150 -95 -109 431 -113 -1355 -147 231 -137 -914 SS 20230202T181304.0Z 8433.759075 430 1 51.49 2 55.35 194.75 102.82 41.15 0.00 1 0.00 1 0 17 1.360e-02 7.400e-03 3.408e-03 1.855e-03 2.087045e-01 9.293950e-04 2.422727e-03 -6.000000e+00 7.665551e-03 224.70 -2.00 3.44 -2.00 315.87 0.00e+00 5.351052e-05 8.845716e-05 2.896567e-05 -6.000000e+00 3.125735e-04 278.36 -2.00 20.00 -2.00 315.56 0.00e+00 1.754 0.000 302.00 328.00 3 6.0116e+00 2.3950e-03 2.0181e-02 -6.0000e+00 1.9052e-02 4.7547e-02 2.6829e-03 1.0156e-02 -6.0000e+00 2.0851e-02 7.7715e-03 1.5471e-03 5.0295e-03 -6.0000e+00 1.2286e-02 -8.2002e-03 7.0504e-04 1.4386e-03 -6.0000e+00 5.1208e-03 1.7919e-04 5.7611e-04 5.3335e-05 1.7360e-05 -6.0000e+00 3.7308e-04 6.8138e-03 1.9494e-04 11 9 0 11 32 0 99.94 22.66 0.58 0.00681 0.01114 14 3 1 5 0 3677.570 25.68 20.01 22.66 12.60 33.1 944.35 -243 -1074 -2044 -1920 -2770 -1248 3818 -3311 7045 2549 -981 -1923 735 -2647 1044 312 -3869 1574 890 1579 -2251 2961 518 206 -798 1773 -2703 -640 -694 -424 228 3629 -256 -772 -4255 921 -1096 735 1666 -1036 -1016 -73 -483 -1953 334 584 -261 -871 805 2481 -114 666 319 137 372 774 477 261 440 1673 79 1237 2070 361 -185 625 -1517 -196 -572 428 107 -110 -32 1572 -7 100 -1204 -1861 -289 -1745 -14 -1269 -1033 -899 -640 -78 49 162 536 -200 205 -4 -304 -89 -58 -3 35 429 394 -278 -572 453 405 -298 -609 -1156 -387 -595 387 -446 220 313 -119 -239 -77 326 212 -640 913 478 582 500 -3 -224 341 716 380 744 598 -43 -166 228 -225 -155 374 145 335 196 -333 -164 -216 129 -1473 -56 -259 -487 -415 -556 -249 793 -808 1686 638 -250 -520 215 -881 368 116 -1513 606 353 638 -938 1182 218 91 -365 808 -1241 -272 -282 -173 97 1587 -121 -358 -1927 410 -544 408 1044 -722 -738 -54 -362 -1479 248 430 -189 -621 559 1728 -84 509 253 112 308 647 402 218 364 1380 68 1112 1940 349 -174 552 -1301 -166 -518 415 109 -114 -33 1548 -7 87 -1001 -1525 -246 -1621 -14 -1328 -1115 -1002 -746 -95 61 204 668 -243 235 -5 -313 -91 -62 -3 42 546 510 -354 -698 524 462 -354 -760 -1491 -511 -807 538 -644 323 456 -169 -323 -99 405 265 -833 1232 668 821 700 -4 -301 442 900 466 922 771 -57 -228 316 -317 -224 556 222 519 307 -524 -254 -328 192 -2203