File name: Pandora37s1_HamptonVA_20240419_L2Fit_fout2c5d20210730p1-8.txt File generation date: 20250725T193658.7Z Data description: Level 2 spectral fitting results file Data file version: fout2c5p1-8 Local principal investigator: Timothy Berkoff Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 37 Spectrometer number: 1 Processing software version used: BlickP v1.8.75 Instrument operation file used: Pandora37_OF_v6d20200313.txt Instrument calibration file used: Pandora37s1_CF_v5d20210730.txt Level 1 file used: Pandora37s1_HamptonVA_20240419_L1_smca1c5d20210730p1-8.txt Full location name: Langley Research Center Short location name: HamptonVA Country of location: USA Location latitude [deg]: 37.1036 Location longitude [deg]: -76.3868 Location altitude [m]: 4 Local noon date: 20240419 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: 252 394 Nominal wavelengths inside fitting window [nm]: 305.1189 305.2594 305.3998 305.5402 305.6806 305.8210 305.9613 306.1017 306.2421 306.3824 306.5227 306.6630 306.8034 306.9436 307.0839 307.2242 307.3645 307.5047 307.6449 307.7852 307.9254 308.0656 308.2058 308.3459 308.4861 308.6263 308.7664 308.9065 309.0467 309.1868 309.3269 309.4670 309.6070 309.7471 309.8871 310.0272 310.1672 310.3072 310.4472 310.5872 310.7272 310.8672 311.0071 311.1471 311.2870 311.4269 311.5668 311.7067 311.8466 311.9865 312.1263 312.2662 312.4060 312.5459 312.6857 312.8255 312.9653 313.1050 313.2448 313.3846 313.5243 313.6640 313.8038 313.9435 314.0832 314.2229 314.3625 314.5022 314.6419 314.7815 314.9211 315.0607 315.2003 315.3399 315.4795 315.6191 315.7586 315.8982 316.0377 316.1772 316.3167 316.4562 316.5957 316.7352 316.8747 317.0141 317.1536 317.2930 317.4324 317.5718 317.7112 317.8506 317.9899 318.1293 318.2686 318.4080 318.5473 318.6866 318.8259 318.9652 319.1045 319.2437 319.3830 319.5222 319.6614 319.8006 319.9398 320.0790 320.2182 320.3574 320.4965 320.6357 320.7748 320.9139 321.0530 321.1921 321.3312 321.4703 321.6093 321.7484 321.8874 322.0264 322.1654 322.3044 322.4434 322.5824 322.7214 322.8603 322.9993 323.1382 323.2771 323.4160 323.5549 323.6938 323.8326 323.9715 324.1103 324.2492 324.3880 324.5268 324.6656 324.8044 324.9432 --------------------------------------------------------------------------------------- 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 20240419T191251.2Z 8875.800592 443 1 49.94 2 38.48 236.75 98.46 73.03 0.00 1 0.00 1 0 17 7.414e-03 5.748e-03 7.477e-04 4.665e-04 1.970435e-01 2.385676e-04 2.350439e-03 -6.000000e+00 4.234955e-03 229.43 -2.00 3.43 -2.00 315.36 0.00e+00 2.028280e-04 2.194169e-05 2.932867e-05 -6.000000e+00 1.866628e-04 283.47 -2.00 20.00 -2.00 314.72 0.00e+00 1.276 0.000 302.00 328.00 3 3.3232e+00 6.1610e-04 1.6300e-02 -6.0000e+00 1.0563e-02 1.8547e-02 6.8529e-04 9.9588e-03 -6.0000e+00 1.1456e-02 -4.0324e-03 3.9194e-04 4.8787e-03 -6.0000e+00 6.8154e-03 -1.3635e-03 1.7599e-04 1.3647e-03 -6.0000e+00 2.9010e-03 4.2633e-03 -9.7687e-05 1.3061e-05 1.7061e-05 -6.0000e+00 1.9793e-04 -5.3979e-03 0.0000e+00 10 0 0 10 0 0 99.99 21.25 0.24 -0.00540 -0.00613 355 71 1 5 0 140.670 25.28 19.98 21.25 22.36 31.0 1019.87 -1296 -1501 -2170 -2333 -1243 -351 776 1050 -294 -746 -1080 795 -185 650 292 -372 336 506 727 924 585 1105 997 563 304 -127 -686 -321 249 1144 1288 1742 -66 -1699 -1215 -825 -432 209 -348 -844 -830 -483 -791 -661 -277 -736 -505 -511 -250 701 816 567 898 478 818 926 303 603 635 1011 1224 1188 1067 464 -604 -24 -339 499 1205 -239 -177 -210 -162 -102 -338 -175 -220 163 242 -824 -861 -1610 -1868 -905 -937 -585 -522 -267 42 91 324 142 816 1308 552 209 482 277 -249 -418 -318 -110 664 330 -894 -542 -524 -346 263 231 -17 -47 178 253 429 781 494 367 112 -415 -581 -184 -57 102 513 -80 740 1289 457 260 -57 -142 164 249 -174 -243 -17 -26 -304 -122 -241 -412 -70 -368 -450 -644 -662 -311 -86 203 307 -90 -232 -327 245 -64 252 119 -163 149 230 340 421 269 499 463 276 156 -67 -355 -153 115 520 615 835 -34 -891 -586 -396 -230 123 -235 -624 -628 -376 -632 -527 -219 -579 -384 -392 -186 517 633 448 742 397 690 793 265 520 536 850 1066 1067 1034 456 -583 -22 -296 420 1083 -237 -183 -216 -172 -104 -334 -161 -190 133 206 -763 -855 -1694 -2007 -1008 -1079 -696 -653 -332 52 112 378 156 840 1343 578 232 569 348 -320 -526 -387 -127 755 377 -1090 -695 -678 -466 355 320 -24 -68 248 336 555 974 614 461 146 -566 -818 -256 -77 137 669 -100 897 1544 564 342 -76 -194 226 343 -247 -363 -25 -40 -469 -184 -363 -600 -102 SS 20240419T191822.6Z 8875.804428 446 1 6.39 2 39.41 238.32 97.45 73.89 0.00 1 0.00 1 0 17 1.142e-02 7.568e-03 6.577e-03 4.100e-03 2.013828e-01 2.095403e-03 2.410627e-03 -6.000000e+00 6.525775e-03 229.43 -2.00 3.43 -2.00 315.35 0.00e+00 2.784123e-04 1.928526e-04 4.630518e-05 -6.000000e+00 2.876508e-04 283.47 -2.00 20.00 -2.00 314.71 0.00e+00 1.293 0.000 302.00 328.00 3 5.1776e+00 5.4090e-03 1.6583e-02 -6.0000e+00 1.6277e-02 3.0455e-02 6.0168e-03 1.0200e-02 -6.0000e+00 1.7653e-02 -3.3633e-03 3.4441e-03 4.9966e-03 -6.0000e+00 1.0502e-02 -1.8493e-03 1.5484e-03 1.4105e-03 -6.0000e+00 4.4700e-03 6.4713e-04 -8.0604e-05 1.1442e-04 1.7844e-05 -6.0000e+00 3.0502e-04 -5.0200e-03 0.0000e+00 12 9 1 12 1 1 999.00 21.24 0.54 -0.00502 -0.00563 2 5 1 5 0 2129.690 25.28 19.99 21.24 22.53 30.9 1020.06 1038 -7003 -315 -1367 249 2284 -3423 1435 -777 1081 -800 3051 -885 284 -2340 1120 1702 2028 158 1621 889 1111 1408 -1780 1673 -147 -698 -1140 -145 -508 1289 849 -678 -1484 -2081 31 -413 1504 -9 -477 -176 -1068 -1090 -393 -577 -1092 -549 38 -250 695 726 231 1133 272 1556 688 602 766 -13 450 701 924 710 759 -787 467 -827 1483 1431 -179 -1274 -331 -59 501 81 -690 -15 688 709 -1457 -169 -1500 -1664 -1221 -601 -675 219 -520 196 495 13 -288 403 1579 66 556 831 246 -776 -292 -718 -442 1268 60 -615 -77 -781 -1170 -129 585 -65 -102 241 471 510 785 626 -469 455 -501 -1225 290 -205 548 189 224 1354 1399 1027 -46 104 -20 278 131 -332 -875 197 260 -329 294 -639 -590 -81 293 -2201 -93 -373 61 545 -916 407 -240 334 -245 938 -306 107 -979 479 736 895 72 751 416 515 664 -892 845 -76 -359 -555 -67 -233 605 419 -355 -776 -1034 15 -219 881 -6 -350 -135 -840 -869 -312 -457 -865 -425 29 -186 515 556 185 928 230 1325 596 526 665 -11 387 616 848 684 752 -774 430 -730 1272 1285 -175 -1317 -348 -62 511 80 -633 -13 568 603 -1349 -166 -1569 -1802 -1354 -692 -810 270 -654 246 605 15 -318 420 1599 70 618 977 307 -1003 -372 -884 -517 1430 69 -754 -97 -1014 -1561 -175 817 -93 -147 339 633 650 963 767 -593 595 -686 -1713 401 -280 728 244 280 1634 1684 1281 -60 138 -28 378 182 -477 -1297 294 394 -504 444 -951 -861 -116