File name: Pandora231s1_Suwon-USW_20250312_L2Fit_fwvt1c3d20231101p1-8.txt File generation date: 20250312T155210.2Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c3p1-8 Local principal investigator: Hyeong-Ahn Kwon Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 231 Spectrometer number: 1 Processing software version used: BlickP v1.8.74 Instrument operation file used: Pandora231_OF_v2d20220713.txt Instrument calibration file used: Pandora231s1_CF_v3d20231101.txt Level 1 file used: Pandora231s1_Suwon-USW_20250312_L1_smca1c3d20231101p1-8.txt Full location name: University of Suwon Short location name: Suwon-USW Country of location: Korea, Republic of Location latitude [deg]: 37.2110 Location longitude [deg]: 126.9800 Location altitude [m]: 60 Local noon date: 20250312 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: OoB session after repairs and clearance, based on session 2 First and last pixel inside fitting window: 1612 1760 Nominal wavelengths inside fitting window [nm]: 492.0504 492.1723 492.2941 492.4160 492.5378 492.6596 492.7814 492.9031 493.0249 493.1466 493.2684 493.3901 493.5118 493.6334 493.7551 493.8767 493.9983 494.1199 494.2415 494.3631 494.4846 494.6062 494.7277 494.8492 494.9707 495.0922 495.2136 495.3350 495.4565 495.5779 495.6993 495.8206 495.9420 496.0633 496.1846 496.3059 496.4272 496.5485 496.6697 496.7910 496.9122 497.0334 497.1546 497.2757 497.3969 497.5180 497.6391 497.7602 497.8813 498.0024 498.1234 498.2444 498.3655 498.4865 498.6074 498.7284 498.8493 498.9703 499.0912 499.2121 499.3330 499.4538 499.5747 499.6955 499.8163 499.9371 500.0579 500.1786 500.2994 500.4201 500.5408 500.6615 500.7822 500.9028 501.0235 501.1441 501.2647 501.3853 501.5059 501.6264 501.7470 501.8675 501.9880 502.1085 502.2289 502.3494 502.4698 502.5903 502.7107 502.8310 502.9514 503.0718 503.1921 503.3124 503.4327 503.5530 503.6733 503.7935 503.9137 504.0340 504.1542 504.2743 504.3945 504.5146 504.6348 504.7549 504.8750 504.9951 505.1151 505.2352 505.3552 505.4752 505.5952 505.7152 505.8351 505.9551 506.0750 506.1949 506.3148 506.4347 506.5545 506.6743 506.7942 506.9140 507.0338 507.1535 507.2733 507.3930 507.5127 507.6324 507.7521 507.8718 507.9914 508.1111 508.2307 508.3503 508.4698 508.5894 508.7089 508.8285 508.9480 509.0675 509.1870 509.3064 509.4259 509.5453 509.6647 509.7841 509.9034 --------------------------------------------------------------------------------------- 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 102-250: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 251-399: 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 20250312T015134.1Z 9202.077478 303 1 27.75 2 47.91 141.48 128.20 353.68 0.00 1 0.00 1 0 15 1.520e-02 1.512e-02 1.222e-03 1.219e-03 2.774537e+02 6.333701e+01 2.746186e+01 -6.000000e+00 7.929076e+02 279.43 -2.00 20.00 -2.00 505.24 0.00e+00 9.183922e-04 3.254048e-05 3.765799e-05 -6.000000e+00 4.161102e-04 279.43 -2.00 20.00 -2.00 500.39 0.00e+00 3.727294e-03 2.350267e-02 5.741640e-03 -6.000000e+00 2.948252e-01 226.39 -2.00 3.43 -2.00 501.98 0.00e+00 1.489 0.000 489.00 513.00 1 6.9388e+00 1.7958e-03 2.3621e-03 -6.0000e+00 2.2510e-02 8.9727e-03 4.7534e-04 1.3476e-04 -6.0000e+00 5.9449e-03 1.5205e-03 -2.4696e-04 9.8626e-05 1.1236e-05 -6.0000e+00 1.2591e-03 4.8017e-02 -4.1925e-05 12 9 9 12 1 1 99.94 22.63 0.48 0.04802 0.04630 11 4 1 2 0 2312.480 20.01 22.63 20.40 25.47 25.79 0.0 942.91 -4315 -3188 -1634 -281 435 1624 2134 2080 1645 1118 457 -392 -1296 -1907 -2107 -1758 -1170 185 669 661 785 1040 1444 1770 1901 1706 1459 193 -1898 -2567 -2398 -1857 -594 1172 1505 803 323 -469 -868 -573 -158 334 1239 1865 2606 2217 1826 961 -144 -1504 -2852 -3863 -3479 -2313 -1006 103 583 670 404 672 1383 1750 2096 1525 1112 569 149 -148 -886 -1190 -831 -164 388 729 634 -210 -1161 -1512 -2002 -1625 -1212 -900 -897 -438 -461 -659 -802 -478 -59 257 1453 2424 2699 2167 1815 787 -435 -1769 -2468 -2703 -1838 -174 950 918 122 -388 -1810 -2150 -1431 -786 -35 759 1411 1380 1839 1903 2555 1858 824 122 -454 258 691 764 1030 839 740 1052 601 -313 -1353 -1885 -2900 -2865 -1583 -1090 -433 177 518 514 1073 1142 1388 1520 796 -596 -1542 -2263 -1600 -4309 -3216 -1692 -284 445 1674 2230 2189 1725 1157 470 -401 -1309 -1911 -2115 -1772 -1193 192 709 703 833 1101 1521 1869 2016 1806 1541 203 -1956 -2572 -2392 -1861 -605 1230 1610 857 342 -494 -905 -593 -164 348 1295 1962 2741 2333 1907 996 -148 -1511 -2811 -3774 -3381 -2278 -1016 106 606 696 418 692 1423 1808 2160 1571 1134 572 148 -146 -867 -1152 -805 -160 381 724 630 -206 -1125 -1454 -1923 -1562 -1177 -878 -878 -433 -462 -662 -805 -479 -59 246 1394 2355 2637 2105 1745 752 -430 -1717 -2359 -2579 -1763 -170 911 904 120 -378 -1751 -2060 -1373 -765 -34 753 1407 1383 1842 1917 2556 1845 812 120 -439 247 666 739 993 810 712 1007 580 -302 -1286 -1773 -2721 -2671 -1487 -1050 -422 173 510 507 1056 1131 1379 1509 787 -582 -1469 -2131 -1501 SQ 20250312T024100.3Z 9202.111809 330 1 42.83 2 42.87 157.35 128.22 8.29 0.00 1 0.00 1 0 22 1.513e-02 1.507e-02 6.031e-04 6.013e-04 4.128015e+02 3.179286e+01 3.919777e+01 -6.000000e+00 7.890312e+02 279.43 -2.00 20.00 -2.00 505.28 0.00e+00 8.781005e-04 1.609421e-05 3.650170e-05 -6.000000e+00 4.140705e-04 279.43 -2.00 20.00 -2.00 500.38 0.00e+00 -2.436994e-02 1.161779e-02 5.636091e-03 -6.000000e+00 2.934002e-01 226.40 -2.00 3.43 -2.00 502.00 0.00e+00 1.363 0.000 489.00 513.00 1 5.8595e+00 8.8677e-04 2.1866e-03 -6.0000e+00 2.2401e-02 6.8423e-03 2.3460e-04 1.3304e-04 -6.0000e+00 5.9166e-03 4.5661e-03 -5.6261e-04 4.8667e-05 1.1257e-05 -6.0000e+00 1.2529e-03 4.8320e-02 -4.9380e-05 12 9 9 12 1 1 99.99 22.75 0.48 0.04832 0.04442 136 32 1 2 0 312.340 20.00 22.75 22.32 25.58 25.90 0.0 953.94 -4257 -3256 -1601 -297 511 1433 2140 2272 1626 1133 404 -352 -1358 -1892 -2107 -1689 -1189 68 567 776 890 1099 1424 1728 1871 1688 1406 264 -1515 -2594 -2502 -2055 -471 1007 1547 821 186 -415 -841 -690 -250 376 1353 1944 2478 2272 1856 1250 35 -1484 -2674 -3535 -3354 -2279 -928 196 500 595 373 776 1349 1892 1924 1822 1125 578 86 -157 -915 -1198 -757 -146 524 906 569 -379 -1198 -1498 -1908 -1656 -1238 -1236 -1131 -637 -452 -684 -639 -593 17 451 1550 2337 2743 2021 1712 633 -495 -1917 -2600 -2683 -2007 -614 840 966 323 -543 -1755 -2062 -1587 -912 -144 659 1099 1627 1756 2107 2656 1844 641 235 -373 84 602 733 904 953 722 776 678 -132 -1173 -1802 -2562 -2687 -1651 -937 -234 248 665 626 1021 1295 1658 1397 833 -682 -1586 -2131 -1704 -4117 -3183 -1605 -305 532 1509 2281 2436 1740 1197 423 -368 -1402 -1935 -2158 -1735 -1237 72 614 841 963 1187 1531 1863 2026 1825 1518 284 -1590 -2657 -2551 -2106 -488 1079 1595 846 191 -421 -895 -730 -265 377 1362 1970 2517 2305 1869 1247 36 -1524 -2689 -3517 -3324 -2290 -956 194 501 597 373 770 1340 1883 1916 1806 1106 561 82 -150 -916 -1186 -749 -145 496 867 547 -360 -1122 -1472 -1872 -1628 -1161 -1167 -1071 -609 -438 -664 -618 -574 16 436 1505 2304 2717 1993 1670 614 -472 -1799 -2402 -2470 -1861 -580 817 964 323 -538 -1724 -2004 -1547 -901 -144 663 1115 1650 1786 2149 2693 1859 643 233 -366 81 589 720 885 933 705 756 664 -129 -1130 -1719 -2432 -2538 -1574 -914 -231 246 664 627 1020 1299 1580 1336 793 -677 -1535 -2036 -1626