File name: Pandora71s1_GreenbeltMD_20241114_L2Fit_fwvt1c1d20220202p1-8.txt File generation date: 20241127T135304.7Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c1p1-8 Local principal investigator: Tom Hanisco Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 71 Spectrometer number: 1 Processing software version used: BlickP v1.8.60 Instrument operation file used: Pandora71_OF_v7d20201007.txt Instrument calibration file used: Pandora71s1_CF_v1d20220202.txt Level 1 file used: Pandora71s1_GreenbeltMD_20241114_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: 20241114 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: 1657 1807 Nominal wavelengths inside fitting window [nm]: 492.0762 492.1966 492.3171 492.4375 492.5580 492.6784 492.7988 492.9191 493.0395 493.1598 493.2802 493.4005 493.5208 493.6410 493.7613 493.8815 494.0017 494.1219 494.2421 494.3623 494.4825 494.6026 494.7227 494.8428 494.9629 495.0830 495.2030 495.3231 495.4431 495.5631 495.6831 495.8030 495.9230 496.0429 496.1628 496.2827 496.4026 496.5225 496.6423 496.7621 496.8820 497.0018 497.1215 497.2413 497.3610 497.4808 497.6005 497.7202 497.8399 497.9595 498.0792 498.1988 498.3184 498.4380 498.5576 498.6771 498.7967 498.9162 499.0357 499.1552 499.2746 499.3941 499.5135 499.6330 499.7524 499.8717 499.9911 500.1105 500.2298 500.3491 500.4684 500.5877 500.7070 500.8262 500.9455 501.0647 501.1839 501.3030 501.4222 501.5414 501.6605 501.7796 501.8987 502.0178 502.1368 502.2559 502.3749 502.4939 502.6129 502.7319 502.8508 502.9698 503.0887 503.2076 503.3265 503.4453 503.5642 503.6830 503.8018 503.9206 504.0394 504.1582 504.2769 504.3957 504.5144 504.6331 504.7517 504.8704 504.9890 505.1077 505.2263 505.3449 505.4635 505.5820 505.7005 505.8191 505.9376 506.0561 506.1745 506.2930 506.4114 506.5298 506.6482 506.7666 506.8850 507.0033 507.1217 507.2400 507.3583 507.4765 507.5948 507.7130 507.8313 507.9495 508.0677 508.1858 508.3040 508.4221 508.5402 508.6584 508.7764 508.8945 509.0126 509.1306 509.2486 509.3666 509.4846 509.6025 509.7205 509.8384 509.9563 --------------------------------------------------------------------------------------- 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: Water vapor slant column amount [moles per square meter], -9e99=fitting not successful Column 23: Independent uncertainty of water vapor 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 water vapor 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 water vapor 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 water vapor 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: Water vapor effective temperature [K] Column 28: Independent uncertainty of water vapor 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 water vapor 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 water vapor 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 water vapor fitting wavelength [nm], -9=fitting not successful Column 32: Diffuse correction applied before fitting at effective fitting wavelength for water vapor [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction Column 33: Nitrogen dioxide slant column amount [moles per square meter], -9e99=fitting not successful Column 34: Independent uncertainty of nitrogen 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 nitrogen 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 nitrogen 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 nitrogen 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: Nitrogen dioxide effective temperature [K] Column 39: Independent uncertainty of nitrogen 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 nitrogen 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 nitrogen 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 nitrogen dioxide fitting wavelength [nm], -9=fitting not successful Column 43: Diffuse correction applied before fitting at effective fitting wavelength for nitrogen dioxide [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction Column 44: Ozone slant column amount [moles per square meter], -9e99=fitting not successful Column 45: 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 46: 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 47: 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 48: 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 49: Ozone effective temperature [K] Column 50: 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 51: 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 52: 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 53: Effective ozone fitting wavelength [nm], -9=fitting not successful Column 54: 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 55: Molecular scattering air mass factor used for molecular scattering subtraction before the fitting Column 56: Estimated uncertainty of molecular scattering air mass factor, -9=molecular scattering was not subtracted before the fitting Column 57: Lower limit used for wavelength scaling [nm] Column 58: Upper limit used for wavelength scaling [nm] Column 59: Order of smoothing polynomial Column 60: Smoothing polynomial coefficient, order 0 Column 61: Independent uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 62: Structured uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 63: Common uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 64: rms-based uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 65: Smoothing polynomial coefficient, order 1 Column 66: Independent uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 67: Structured uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 68: Common uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 69: rms-based uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 70: Mean value of measured data inside fitting window [same units as measurements] Column 71: Wavelength change polynomial coefficient, order 0 Column 72: Independent uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 73: Structured uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 74: Common uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 75: rms-based uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 76: L1 based wavelength change coefficient, order 0, -9=no L1 wavelength change determination Column 77: L1 based wavelength change coefficient, order 1, -9=no L1 wavelength change determination Column 78: 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 79: 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 80: 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 81: 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 82: 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 83: 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 84: Atmospheric variability [%], 999=no atmospheric variability was determined Column 85: Wavelength effective temperature [°C], 999=no effective temperature given Column 86: Estimated average residual stray light level [%] (only valid for stray light correction methods 2 and higher) Column 87: Retrieved wavelength shift from L1 data [nm], -9=no wavelength change determination Column 88: Retrieved total wavelength shift [nm], -9=no wavelength change fitting Column 89: Number of bright count cycles Column 90: Number of dark count cycles Column 91: Effective position of filterwheel #1, 0=filterwheel not used, 1-9 are valid positions Column 92: Effective position of filterwheel #2, 0=filterwheel not used, 1-9 are valid positions Column 93: Sum over 2^i, 0=spectra were interpolated in time, 1=spectra are corrected for off-target signal Column 94: Integration time [ms] 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: Temperature at electronics board 1 [°C], 999=no temperature signal Column 99: Temperature at electronics board 2 [°C], 999=no temperature signal Column 100: Humidity in head sensor [%], -9=no humidity signal Column 101: Pressure in head sensor [hPa], -9=no pressure signal Columns 102-252: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 253-403: 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 --------------------------------------------------------------------------------------- SQ 20241114T150532.2Z 9084.628845 327 1 17.55 2 62.61 151.43 125.71 350.37 0.00 1 0.00 1 0 85 1.257e-02 1.252e-02 1.531e-03 1.527e-03 1.375398e+03 8.111796e+01 1.396683e+02 -6.000000e+00 6.371725e+02 281.51 -2.00 20.00 -2.00 505.26 0.00e+00 3.519390e-04 4.049963e-05 8.687923e-05 -6.000000e+00 3.407025e-04 281.51 -2.00 20.00 -2.00 500.40 0.00e+00 4.841149e-02 2.742721e-02 3.095788e-02 -6.000000e+00 2.384841e-01 223.60 -2.00 3.47 -2.00 502.01 0.00e+00 2.162 0.000 489.00 513.00 1 6.2487e+00 2.1050e-03 4.1990e-03 -6.0000e+00 1.8192e-02 1.8800e-02 5.3151e-04 3.9565e-04 -6.0000e+00 4.8633e-03 2.7582e-03 8.5912e-02 1.0513e-04 1.9229e-05 -6.0000e+00 8.6420e-04 7.7250e-02 8.6369e-05 12 13 9 12 5 1 99.83 26.79 1.31 0.07725 0.67317 12 4 1 2 0 1344.059 19.90 26.79 13.56 27.25 27.50 7.0 990.50 1130 1550 1534 740 352 849 -387 -1572 -1641 -1768 -1668 -972 1204 566 -451 499 -225 152 1422 1186 1286 1917 1373 -2672 -1961 -1497 -2605 -620 2279 1333 278 585 -322 -782 -1221 -72 -356 509 1228 1421 1329 1551 1357 1409 -950 -1769 -2668 -3420 -1708 -512 683 -68 453 -852 -381 210 925 680 1084 735 263 164 294 -630 -1754 -1155 -643 -169 1168 1158 -13 -830 -698 -798 -1713 -416 -300 -1438 -295 259 218 -659 -790 -422 -926 -817 1163 2249 1519 1355 1763 714 -264 -2035 -2476 -2628 -2333 -300 2246 1112 495 144 -1721 -1492 -501 -324 1 346 584 434 981 2079 1851 699 905 155 -1112 -190 900 -257 535 733 331 783 2193 105 -434 -565 -1806 -2744 -1110 -108 -342 -330 351 -136 118 845 1079 2045 2058 551 -1308 -1919 -1719 -1194 -63 1216 1017 -188 900000 1183 1640 1623 776 363 898 -408 -1632 -1695 -1836 -1745 -995 1258 606 -484 531 -241 161 1515 1267 1364 2014 1431 -2716 -2006 -1535 -2623 -632 2413 1386 297 616 -337 -810 -1263 -74 -372 535 1297 1458 1406 1617 1394 1421 -942 -1775 -2648 -3399 -1654 -512 698 -71 471 -853 -393 217 958 680 1116 749 263 162 288 -613 -1686 -1108 -622 -164 1147 1146 -13 -794 -660 -750 -1621 -396 -289 -1393 -286 255 216 -655 -785 -420 -929 -794 1137 2224 1496 1310 1741 694 -252 -1911 -2304 -2458 -2229 -293 2185 1103 485 139 -1713 -1470 -481 -317 1 347 588 438 990 2094 1870 698 889 151 -1073 -182 871 -251 516 708 319 747 2092 100 -420 -541 -1731 -2626 -1078 -103 -333 -325 348 -135 118 841 1078 2027 2022 535 -1242 -1865 -1672 -1134 -61 1183 994 -182 900000 SQ 20241114T180842.6Z 9084.756048 439 1 13.98 2 60.23 201.05 116.17 38.48 0.00 1 0.00 1 0 99 1.225e-02 1.221e-02 1.090e-03 1.089e-03 1.662392e+03 5.799978e+01 1.329091e+02 -6.000000e+00 6.215303e+02 281.50 -2.00 20.00 -2.00 505.25 0.00e+00 3.960541e-04 2.893005e-05 1.045046e-04 -6.000000e+00 3.324099e-04 281.50 -2.00 20.00 -2.00 500.45 0.00e+00 3.622528e-03 1.948412e-02 3.234612e-02 -6.000000e+00 2.334021e-01 223.60 -2.00 3.47 -2.00 502.05 0.00e+00 2.005 0.000 489.00 513.00 1 5.4374e+00 1.4956e-03 4.2688e-03 -6.0000e+00 1.7789e-02 7.8586e-03 3.7677e-04 4.1195e-04 -6.0000e+00 4.7795e-03 6.3645e-03 9.2396e-02 7.4849e-05 2.1029e-05 -6.0000e+00 8.3873e-04 1.0877e-01 -3.8833e-04 12 13 9 12 5 1 59.00 27.32 1.24 0.10877 0.74966 17 8 1 2 0 776.253 20.01 27.32 16.06 28.00 28.25 7.0 1000.42 1428 1423 1470 339 383 794 -437 -1679 -1342 -1558 -1544 -804 1404 752 -488 505 104 80 1420 873 1127 1922 1229 -3020 -1833 -1694 -2406 -212 2674 1115 54 326 -275 -607 -992 -350 -417 550 1043 1389 1221 1313 1370 1063 -942 -1534 -2855 -3284 -1753 -595 462 426 372 -617 -338 223 1035 1099 1022 555 170 18 443 -889 -1938 -996 -388 -205 1570 1303 33 -712 -591 -1067 -1518 -321 -403 -1522 -248 95 273 -739 -519 -663 -618 -879 1127 1904 1313 1389 1879 945 -369 -2106 -2436 -2716 -2158 -33 2043 1098 704 191 -1804 -1483 -688 -158 -382 270 688 161 1171 1699 1768 767 751 275 -1016 -132 866 -258 359 720 71 757 2143 507 -410 -734 -1813 -2515 -800 26 -506 -26 380 -224 -80 721 1320 1888 1863 416 -1140 -1738 -1595 -1175 -28 1038 817 -88 900000 1491 1506 1555 356 394 832 -456 -1727 -1369 -1600 -1600 -824 1470 783 -510 525 108 83 1475 912 1166 2025 1282 -3078 -1860 -1683 -2428 -217 2760 1177 57 335 -282 -613 -1029 -356 -427 566 1081 1447 1265 1342 1377 1081 -937 -1530 -2830 -3254 -1715 -601 465 433 379 -627 -342 226 1052 1116 1035 557 167 18 437 -876 -1886 -965 -379 -202 1555 1302 33 -689 -566 -1018 -1452 -308 -393 -1494 -244 92 267 -726 -507 -653 -610 -876 1129 1884 1325 1372 1826 928 -356 -2005 -2296 -2581 -2090 -31 2043 1087 706 189 -1779 -1447 -680 -154 -380 271 693 163 1179 1720 1790 767 740 267 -1007 -130 840 -252 348 717 70 744 2107 497 -394 -701 -1728 -2389 -771 26 -495 -25 378 -224 -80 723 1324 1886 1845 407 -1117 -1681 -1546 -1155 -28 1019 806 -85 900000