File name: Pandora140s1_WashingtonDC_20220109_L2Fit_fout2c14d20220101p1-8.txt File generation date: 20241218T133420.5Z Data description: Level 2 spectral fitting results file Data file version: fout2c14p1-8 Local principal investigator: Luke Valin Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 140 Spectrometer number: 1 Processing software version used: BlickP v1.8.60 Instrument operation file used: Pandora140_OF_v3d20200721.txt Instrument calibration file used: Pandora140s1_CF_v14d20220101.txt Level 1 file used: Pandora140s1_WashingtonDC_20220109_L1_smca1c14d20220101p1-8.txt Full location name: McMillan Reservoir Short location name: WashingtonDC Country of location: United States Location latitude [deg]: 38.9218 Location longitude [deg]: -77.0124 Location altitude [m]: 58 Local noon date: 20220109 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: Modification of session 10 "Based on session 8 "Modif only on SO2 (WashingtonDC)""" First and last pixel inside fitting window: 215 357 Nominal wavelengths inside fitting window [nm]: 305.0439 305.1847 305.3255 305.4663 305.6071 305.7478 305.8885 306.0293 306.1700 306.3107 306.4514 306.5921 306.7328 306.8734 307.0141 307.1547 307.2954 307.4360 307.5766 307.7172 307.8578 307.9983 308.1389 308.2794 308.4200 308.5605 308.7010 308.8415 308.9820 309.1225 309.2630 309.4034 309.5439 309.6843 309.8247 309.9652 310.1056 310.2459 310.3863 310.5267 310.6670 310.8074 310.9477 311.0881 311.2284 311.3687 311.5089 311.6492 311.7895 311.9297 312.0700 312.2102 312.3504 312.4906 312.6308 312.7710 312.9112 313.0514 313.1915 313.3316 313.4718 313.6119 313.7520 313.8921 314.0322 314.1722 314.3123 314.4523 314.5924 314.7324 314.8724 315.0124 315.1524 315.2924 315.4324 315.5723 315.7123 315.8522 315.9921 316.1320 316.2719 316.4118 316.5517 316.6915 316.8314 316.9712 317.1111 317.2509 317.3907 317.5305 317.6703 317.8100 317.9498 318.0895 318.2293 318.3690 318.5087 318.6484 318.7881 318.9278 319.0675 319.2071 319.3468 319.4864 319.6260 319.7656 319.9052 320.0448 320.1844 320.3239 320.4635 320.6030 320.7426 320.8821 321.0216 321.1611 321.3006 321.4400 321.5795 321.7189 321.8584 321.9978 322.1372 322.2766 322.4160 322.5554 322.6947 322.8341 322.9734 323.1128 323.2521 323.3914 323.5307 323.6700 323.8093 323.9485 324.0878 324.2270 324.3662 324.5054 324.6446 324.7838 324.9230 --------------------------------------------------------------------------------------- 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 20220109T132941.6Z 8044.562287 69 1 50.20 2 80.60 128.53 126.16 48.05 0.00 1 0.00 1 0 17 6.686e-01 3.377e-02 4.118e-01 2.419e-02 6.369998e-01 1.317584e-02 7.205327e-03 -6.000000e+00 3.778918e-01 223.78 -2.00 3.47 -2.00 321.41 0.00e+00 -1.839769e-03 6.153476e-03 3.817867e-03 -6.000000e+00 1.743108e-02 277.10 -2.00 20.00 -2.00 320.90 0.00e+00 5.829 0.003 302.00 328.00 3 3.7740e+00 4.4363e-02 6.9246e-02 -6.0000e+00 9.3238e-01 3.3429e-01 5.6521e-02 4.2731e-02 -6.0000e+00 1.0182e+00 -4.9110e-01 4.9809e-02 1.9071e-02 -6.0000e+00 6.0666e-01 2.1741e-01 2.4211e-02 5.4522e-03 -6.0000e+00 2.6324e-01 2.0111e-05 -6.9492e-04 7.2257e-04 7.8427e-05 -6.0000e+00 1.8433e-02 8.6993e-03 0.0000e+00 12 8 8 10 0 0 99.76 18.39 0.14 0.00870 0.00348 25 5 1 5 0 2007.660 26.51 20.00 18.39 8.14 20.7 1043.16 900000 900000 61796 -159385 900000 -64516 -196175 -90687 -181117 -29712 181088 -95943 -73746 -18496 15139 305638 55782 900000 -23247 314416 167311 244344 -30950 -40938 900000 61339 -177 218102 11987 -101811 -33653 -40605 104250 24812 -27121 55328 7506 900000 125457 59348 104139 58702 -1338 -9733 34092 20550 32656 26565 12255 913 50755 29504 16863 29380 8789 16439 11294 13246 900000 28657 50426 20065 12372 951 5872 8703 22113 12730 11788 6190 7578 11056 -6019 -3435 11938 8578 -5621 -9124 -21561 -1739 7091 -3270 -2450 -5943 -1330 -7533 7400 1873 -647 -540 -4596 -750 -2528 3022 -3446 -2169 -4073 -693 -2545 -242 -4 -1834 1396 -1702 2949 -2796 -4647 1543 1251 -479 -1304 -1055 -1320 650 -3081 1987 -968 1410 1036 3203 825 -493 2416 2687 568 3427 -523 2186 -1066 1900 -517 -1111 332 2732 -2064 1042 -83 -178 1071 169 -1881 -1943 40 900000 900000 1456 -6744 900000 -1520 -10412 -2179 -10398 -700 4267 -3105 -2317 -436 357 7201 1314 900000 -918 7408 3942 5757 -1368 -2138 900000 1500 -7 5139 406 -9436 -1954 -2854 2456 1186 -1934 1893 415 900000 3464 3373 4474 3935 -157 -1241 2928 2000 2868 2501 1350 117 4554 3528 2441 4091 1562 2831 2100 2416 900000 4267 6251 3521 2601 248 1540 2168 4782 3072 3109 1968 2634 3890 -2474 -1309 3625 2419 -1680 -2817 -8191 -643 2807 -1627 -1330 -3533 -808 -5186 4632 1276 -453 -366 -3029 -447 -1473 1701 -2284 -1633 -3589 -677 -2772 -260 -4 -1730 1161 -1455 2603 -2764 -4926 1647 1458 -633 -1932 -1660 -2105 988 -4602 2700 -1356 2014 1573 5001 1316 -772 3556 3831 794 4519 -691 2885 -1628 3163 -966 -2228 689 5841 -4937 2554 -211 -458 2740 421 -4500 -4400 85 SS 20220109T151252.0Z 8044.633936 134 1 50.27 2 67.36 149.26 109.36 68.87 0.00 1 0.00 1 0 17 2.037e-02 5.083e-03 1.557e-02 2.220e-03 3.182997e-01 1.101195e-03 3.762117e-03 -6.000000e+00 1.140635e-02 223.78 -2.00 3.47 -2.00 319.00 0.00e+00 -1.752926e-04 2.474496e-04 1.493649e-04 -6.000000e+00 4.991711e-04 277.10 -2.00 20.00 -2.00 318.37 0.00e+00 2.577 0.000 302.00 328.00 3 3.5016e+00 3.0148e-03 3.0063e-02 -6.0000e+00 2.8144e-02 3.0378e-04 3.4678e-03 1.6084e-02 -6.0000e+00 3.0662e-02 2.0680e-02 2.4555e-03 8.0473e-03 -6.0000e+00 1.8260e-02 -1.4779e-02 1.2922e-03 2.3531e-03 -6.0000e+00 7.8156e-03 8.5299e-04 -2.9614e-04 6.5667e-05 2.6264e-05 -6.0000e+00 5.4018e-04 6.8064e-03 0.0000e+00 10 0 0 10 0 0 99.99 18.38 0.18 0.00681 0.00458 413 78 1 5 0 121.610 26.51 20.00 18.38 10.89 21.3 1059.35 6328 -3886 -4723 2488 -6261 -1858 -5035 2512 -8052 12239 -324 -723 401 -957 2125 -1911 5057 -968 419 -1702 3211 865 -743 3542 -1837 2434 -1962 3460 -1299 1258 -366 735 2105 -2196 -420 -4310 -55 -3568 397 -1633 -1134 -184 -787 1098 -1860 172 -1527 -419 -1733 -784 -219 157 1359 2 1291 207 1608 422 -2341 425 754 1155 1275 2354 195 219 -959 193 -445 1173 549 547 548 -403 820 -346 -25 -1569 -852 -533 -709 -564 -1351 -387 -1083 -21 -471 467 502 283 965 48 534 -396 595 245 607 407 366 154 -400 -471 -1277 -496 -970 -197 -675 -529 -188 114 655 355 365 -79 -162 -432 -460 4 -233 305 -252 224 -63 180 337 342 149 213 382 98 346 22 -232 -272 22 -53 173 252 -55 306 -259 -59 -526 256 -190 -242 115 -283 -78 -230 120 -472 640 -19 -44 27 -75 187 -195 513 -108 49 -210 389 107 -95 468 -270 361 -307 491 -181 170 -54 117 362 -413 -73 -760 -10 -785 101 -498 -381 -65 -287 399 -696 63 -567 -152 -632 -286 -84 65 594 1 624 103 813 216 -1207 211 384 627 755 1489 128 135 -561 110 -267 786 408 426 429 -307 581 -224 -15 -895 -502 -353 -530 -467 -1211 -359 -1079 -22 -524 533 578 317 1003 47 477 -346 543 247 678 505 485 204 -504 -551 -1406 -550 -1172 -249 -897 -735 -273 177 1073 597 602 -124 -236 -593 -627 6 -349 485 -411 359 -99 274 488 478 199 283 542 150 559 37 -398 -482 42 -104 348 518 -115 621 -510 -112 -983