File name: Pandora223s1_HoChiMinhCity-SCEM_20251106_L2Fit_fout2c1d20220615p1-8.txt File generation date: 20251106T164036.4Z Data description: Level 2 spectral fitting results file Data file version: fout2c1p1-8 Local principal investigator: Nhi Hoang Tuyet Nguyen Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 223 Spectrometer number: 1 Processing software version used: BlickP v1.8.75 Instrument operation file used: Pandora223_OF_v3d20220614.txt Instrument calibration file used: Pandora223s1_CF_v1d20240325.txt Level 1 file used: Pandora223s1_HoChiMinhCity-SCEM_20251106_L1_smca1c1d20220615p1-8.txt Full location name: South Ctr for Env. Monitoring, Ministry of Natural Resources and Environment Short location name: HoChiMinhCity-SCEM Country of location: Vietnam Location latitude [deg]: 10.7825 Location longitude [deg]: 106.6833 Location altitude [m]: 45 Local noon date: 20251106 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: OOB based on session 1 lab analysis First and last pixel inside fitting window: 197 338 Nominal wavelengths inside fitting window [nm]: 305.0402 305.1816 305.3231 305.4645 305.6059 305.7473 305.8887 306.0301 306.1715 306.3129 306.4542 306.5955 306.7369 306.8782 307.0195 307.1608 307.3021 307.4434 307.5846 307.7259 307.8671 308.0083 308.1496 308.2908 308.4320 308.5731 308.7143 308.8555 308.9966 309.1378 309.2789 309.4200 309.5611 309.7022 309.8433 309.9843 310.1254 310.2665 310.4075 310.5485 310.6895 310.8305 310.9715 311.1125 311.2535 311.3944 311.5354 311.6763 311.8172 311.9581 312.0990 312.2399 312.3808 312.5217 312.6625 312.8033 312.9442 313.0850 313.2258 313.3666 313.5074 313.6482 313.7889 313.9297 314.0704 314.2111 314.3519 314.4926 314.6332 314.7739 314.9146 315.0553 315.1959 315.3365 315.4772 315.6178 315.7584 315.8990 316.0395 316.1801 316.3207 316.4612 316.6017 316.7423 316.8828 317.0233 317.1638 317.3042 317.4447 317.5851 317.7256 317.8660 318.0064 318.1468 318.2872 318.4276 318.5680 318.7083 318.8487 318.9890 319.1293 319.2697 319.4100 319.5502 319.6905 319.8308 319.9710 320.1113 320.2515 320.3917 320.5320 320.6721 320.8123 320.9525 321.0927 321.2328 321.3730 321.5131 321.6532 321.7933 321.9334 322.0735 322.2136 322.3536 322.4937 322.6337 322.7737 322.9137 323.0537 323.1937 323.3337 323.4737 323.6136 323.7536 323.8935 324.0334 324.1733 324.3132 324.4531 324.5930 324.7328 324.8727 --------------------------------------------------------------------------------------- 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 100-241: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 242-383: 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 20251106T013606.2Z 9441.066738 330 1 49.96 2 52.14 120.24 120.66 303.88 0.00 1 0.00 1 0 17 1.198e-02 8.976e-03 2.236e-03 1.343e-03 1.836393e-01 7.096186e-04 1.952428e-03 -6.000000e+00 7.121452e-03 227.10 -2.00 3.06 -2.00 315.46 0.00e+00 3.658215e-04 6.973261e-05 1.160138e-04 -6.000000e+00 3.288481e-04 294.47 -2.00 20.00 -2.00 314.65 0.00e+00 1.625 0.000 302.00 328.00 3 4.9916e+00 1.8199e-03 1.7953e-02 -6.0000e+00 1.7581e-02 2.0356e-02 2.0237e-03 8.2007e-03 -6.0000e+00 1.8983e-02 -7.9808e-04 1.1618e-03 3.9909e-03 -6.0000e+00 1.1403e-02 -5.6235e-03 5.2668e-04 1.1174e-03 -6.0000e+00 4.9202e-03 6.0308e-04 4.3756e-05 4.0927e-05 1.5953e-05 -6.0000e+00 3.5349e-04 1.1210e-02 0.0000e+00 11 8 0 10 0 0 92.76 24.48 0.42 0.01121 0.01154 33 6 1 5 0 1513.850 26.94 20.00 24.48 34.33 0.4 1044.17 209 430 -978 -1000 -4269 -1649 2238 697 671 -765 -2510 -929 -1195 -1278 421 778 414 1650 166 2702 1087 -216 1532 1162 932 852 507 -1411 -637 -131 1221 495 2521 -608 -4853 -3547 -3049 -1474 -183 -112 -1055 -346 -203 -529 137 503 -619 -681 -1598 -226 768 448 1082 1181 362 1444 959 87 93 137 576 1801 2003 1898 21 -886 -849 -1166 1432 1352 719 922 424 752 27 -929 -1215 -1571 -1091 -1547 -1595 -1776 -2579 -1114 -702 -181 690 798 902 576 573 -305 -1072 -125 119 -62 752 1075 123 -130 -796 -1477 -640 200 -1256 -1572 -615 -741 343 975 915 844 533 19 -56 -203 -249 -9 457 2 136 621 733 487 799 -253 144 827 12 -206 -354 -926 -544 247 149 -84 419 533 141 74 -418 -1196 55 122 -283 -271 -1071 -381 517 181 192 -231 -763 -281 -394 -473 157 310 172 692 73 1185 491 -98 696 552 464 435 256 -683 -285 -57 538 233 1228 -307 -2427 -1732 -1611 -823 -119 -78 -799 -271 -163 -426 110 395 -479 -509 -1171 -164 574 356 896 1016 300 1204 811 74 77 115 500 1650 1959 1805 20 -825 -733 -994 1276 1341 725 960 441 748 27 -836 -1069 -1335 -972 -1436 -1539 -1866 -2891 -1222 -821 -213 842 995 1113 679 659 -341 -1115 -127 128 -69 913 1329 158 -162 -988 -1727 -732 239 -1543 -2040 -826 -985 474 1404 1355 1232 737 26 -70 -259 -303 -12 627 3 189 848 1023 649 1008 -324 179 1044 16 -276 -492 -1246 -748 353 225 -125 640 824 218 112 -614 -1815 SS 20251106T014132.8Z 9441.070519 333 1 51.07 2 50.99 121.04 121.70 304.56 0.00 1 0.00 1 0 17 1.314e-02 9.467e-03 3.018e-03 1.781e-03 1.821636e-01 9.413670e-04 1.956761e-03 -6.000000e+00 7.813259e-03 227.10 -2.00 3.06 -2.00 315.50 0.00e+00 3.464153e-04 9.353744e-05 1.446817e-04 -6.000000e+00 3.608042e-04 294.47 -2.00 20.00 -2.00 314.70 0.00e+00 1.585 0.000 302.00 328.00 3 5.5514e+00 2.4155e-03 1.7587e-02 -6.0000e+00 1.9289e-02 3.0835e-02 2.6847e-03 8.1593e-03 -6.0000e+00 2.0827e-02 -9.8194e-04 1.5436e-03 3.9765e-03 -6.0000e+00 1.2511e-02 -6.0795e-03 7.0402e-04 1.1156e-03 -6.0000e+00 5.3980e-03 3.5771e-04 1.2330e-04 5.4539e-05 1.6372e-05 -6.0000e+00 3.8785e-04 1.1496e-02 0.0000e+00 12 8 8 10 0 0 94.38 24.48 0.70 0.01150 0.01242 22 4 1 5 0 2321.150 26.83 20.00 24.48 34.47 0.5 1045.98 -863 426 -2018 32 -5045 -972 1472 1320 551 999 -3882 -1986 287 -1752 1061 1971 1055 621 356 3326 997 -165 1212 1346 35 1025 993 -1440 -530 502 1348 109 2326 -210 -4876 -3509 -3738 -2003 166 -202 -519 -943 -287 -552 437 801 -837 -838 -1709 -330 810 17 509 939 -757 1626 805 259 -224 283 359 2050 2106 2139 253 -471 -573 -1274 1252 1359 881 1022 689 812 293 -923 -1942 -2049 -1095 -1178 -1674 -1797 -2583 -1369 -364 -84 812 1041 965 496 622 -655 -1180 -181 96 -26 833 1123 228 -284 -786 -1443 -725 124 -1685 -1305 -599 -824 456 1136 951 1000 567 38 -285 -227 -301 212 416 221 127 527 530 330 675 -515 245 694 -274 -180 -599 -824 -528 287 -5 86 530 466 155 304 -493 -957 -214 112 -550 8 -1306 -229 351 349 147 276 -1112 -565 87 -605 396 786 438 266 157 1461 454 -76 556 643 16 526 502 -700 -238 217 596 52 1138 -106 -2441 -1715 -1991 -1119 108 -138 -386 -732 -227 -438 342 618 -638 -617 -1233 -235 594 13 416 794 -666 1421 716 230 -197 249 304 1825 2003 2105 246 -424 -516 -1136 1085 1308 919 1027 689 834 280 -804 -1674 -1703 -949 -1054 -1668 -1817 -2784 -1538 -434 -100 1003 1312 1204 592 728 -705 -1262 -189 106 -29 1028 1400 295 -357 -929 -1713 -842 151 -2095 -1703 -812 -1097 629 1634 1406 1455 782 52 -358 -273 -369 273 573 302 177 718 742 442 855 -627 307 885 -350 -241 -833 -1170 -721 407 -8 126 797 712 236 451 -756 -1437