File name: Pandora222s1_DaNang_20250610_L2Fit_fout2c4d20240301p1-8.txt File generation date: 20260416T100113.9Z Data description: Level 2 spectral fitting results file Data file version: fout2c4p1-8 Local principal investigator: Nhat Minh Nguyen Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 222 Spectrometer number: 1 Processing software version used: BlickP v1.8.88 Instrument operation file used: Pandora222_OF_v2d20220422.txt Instrument calibration file used: Pandora222s1_CF_v4d20240301.txt Level 1 file used: Pandora222s1_DaNang_20250610_L1_smca1c4d20240301p1-8.txt Full location name: Middle and Highland Ctr for Env. Monitoring (MHCEM) Short location name: DaNang Country of location: Vietnam Location latitude [deg]: 16.0005 Location longitude [deg]: 108.2104 Location altitude [m]: 30 Local noon date: 20250610 Notes on s-number (L1 configuration): Corrections NOT applied although requested by the s-number are latency correction, radiometric temperature correction, matrix method stray light correction (replaced by simple method) Data caveats: None First and last pixel inside fitting window: 198 339 Nominal wavelengths inside fitting window [nm]: 305.1156 305.2571 305.3986 305.5401 305.6816 305.8231 305.9646 306.1060 306.2475 306.3889 306.5303 306.6718 306.8132 306.9546 307.0960 307.2373 307.3787 307.5200 307.6614 307.8027 307.9440 308.0853 308.2266 308.3679 308.5092 308.6505 308.7917 308.9330 309.0742 309.2154 309.3566 309.4978 309.6390 309.7802 309.9214 310.0625 310.2037 310.3448 310.4859 310.6271 310.7682 310.9092 311.0503 311.1914 311.3325 311.4735 311.6145 311.7556 311.8966 312.0376 312.1786 312.3196 312.4605 312.6015 312.7424 312.8834 313.0243 313.1652 313.3061 313.4470 313.5879 313.7288 313.8697 314.0105 314.1513 314.2922 314.4330 314.5738 314.7146 314.8554 314.9962 315.1369 315.2777 315.4184 315.5591 315.6999 315.8406 315.9813 316.1219 316.2626 316.4033 316.5439 316.6846 316.8252 316.9658 317.1064 317.2470 317.3876 317.5282 317.6688 317.8093 317.9499 318.0904 318.2309 318.3714 318.5119 318.6524 318.7929 318.9333 319.0738 319.2142 319.3547 319.4951 319.6355 319.7759 319.9163 320.0567 320.1970 320.3374 320.4777 320.6180 320.7584 320.8987 321.0390 321.1793 321.3195 321.4598 321.6000 321.7403 321.8805 322.0207 322.1609 322.3011 322.4413 322.5815 322.7217 322.8618 323.0020 323.1421 323.2822 323.4223 323.5624 323.7025 323.8426 323.9826 324.1227 324.2627 324.4028 324.5428 324.6828 324.8228 324.9628 --------------------------------------------------------------------------------------- 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 20250610T010800.4Z 9292.047227 263 1 51.40 2 51.71 73.03 143.52 248.17 0.00 1 0.00 1 0 17 8.699e-03 6.778e-03 2.369e-04 1.539e-04 1.965024e-01 8.038187e-05 2.091313e-03 -6.000000e+00 5.109181e-03 228.80 -2.00 3.10 -2.00 315.27 0.00e+00 3.778454e-04 7.655418e-06 6.047470e-05 -6.000000e+00 2.382950e-04 295.18 -2.00 20.00 -2.00 314.46 0.00e+00 1.610 0.000 302.00 328.00 3 1.0557e+00 2.0654e-04 1.8241e-02 -6.0000e+00 1.2658e-02 1.2816e-02 2.3007e-04 8.9246e-03 -6.0000e+00 1.3704e-02 -2.9957e-03 1.3144e-04 4.3223e-03 -6.0000e+00 8.2230e-03 -5.2561e-03 5.8396e-05 1.1935e-03 -6.0000e+00 3.5001e-03 3.0599e-02 -1.1094e-04 4.5902e-06 1.6447e-05 -6.0000e+00 2.5433e-04 9.6657e-05 0.0000e+00 11 8 0 10 0 0 99.42 24.14 0.40 0.00010 -0.00074 1376 230 1 5 0 37.350 26.21 20.00 24.14 37.64 21.0 1038.11 -1031 -1208 -2102 -3171 -1291 27 614 611 -622 -1878 -1001 469 77 400 94 -300 562 852 1024 937 302 1430 1621 746 524 -15 -675 -417 756 1683 1409 1428 -426 -2695 -1534 -803 -682 -79 -450 -1078 -1000 -634 -689 -321 -223 -805 -619 -646 -127 912 722 635 1010 736 867 877 343 366 556 1093 1460 1647 1368 77 -712 38 -12 968 868 181 320 249 444 41 -313 -561 -895 -593 -1021 -1714 -1670 -2237 -1681 -764 -586 -132 222 557 443 364 267 59 482 408 -94 364 647 -110 -605 -582 -827 -360 49 -989 -1204 -775 -565 5 539 463 319 263 232 125 447 426 425 469 157 -135 301 483 443 608 249 302 1093 399 79 -165 -329 -197 270 0 -102 107 290 -146 -224 -332 -623 -658 -314 -388 -668 -925 -364 8 168 185 -206 -641 -335 163 28 161 39 -133 253 395 488 458 148 697 766 371 271 -8 -346 -211 358 797 704 709 -225 -1416 -809 -411 -393 -50 -302 -773 -758 -494 -546 -253 -175 -623 -463 -493 -95 692 551 512 810 613 734 753 298 312 470 937 1319 1526 1291 74 -677 34 -11 851 807 179 320 253 458 39 -291 -493 -770 -513 -925 -1667 -1712 -2371 -1861 -858 -679 -160 270 680 546 417 303 64 493 430 -104 424 796 -139 -763 -721 -994 -409 57 -1198 -1495 -1003 -736 7 740 664 448 367 311 160 553 523 543 619 214 -184 421 659 600 778 316 365 1365 509 103 -225 -444 -271 382 0 -150 163 434 -221 -343 -492 -901 -969 SS 20250610T011351.5Z 9292.051291 266 1 51.41 2 50.37 73.10 144.76 247.85 0.00 1 0.00 1 0 17 8.601e-03 6.783e-03 2.360e-04 1.564e-04 1.911650e-01 8.160916e-05 2.034529e-03 -6.000000e+00 5.051747e-03 228.80 -2.00 3.10 -2.00 315.19 0.00e+00 3.543809e-04 7.672756e-06 6.094729e-05 -6.000000e+00 2.356140e-04 295.18 -2.00 20.00 -2.00 314.39 0.00e+00 1.564 0.000 302.00 328.00 3 1.1372e+00 2.0953e-04 1.7727e-02 -6.0000e+00 1.2516e-02 1.4045e-02 2.3329e-04 8.6786e-03 -6.0000e+00 1.3550e-02 -3.0697e-03 1.3330e-04 4.2026e-03 -6.0000e+00 8.1305e-03 -5.1840e-03 5.9029e-05 1.1583e-03 -6.0000e+00 3.4608e-03 2.9772e-02 -1.0085e-04 4.6624e-06 1.6389e-05 -6.0000e+00 2.5146e-04 1.2172e-05 0.0000e+00 11 8 0 10 0 0 99.77 24.14 0.39 0.00001 -0.00075 1399 233 1 5 0 36.740 26.21 20.00 24.14 38.68 21.1 1045.14 -953 -1256 -2086 -3056 -1221 -76 672 521 -519 -1739 -883 456 174 403 117 -396 485 840 1005 951 283 1442 1589 748 519 -61 -715 -400 689 1645 1304 1397 -468 -2779 -1476 -766 -680 -70 -395 -1033 -992 -636 -683 -325 -196 -820 -637 -638 -152 910 736 651 1018 721 861 886 357 323 529 1082 1496 1628 1338 56 -727 21 -5 976 865 154 334 253 471 51 -318 -556 -933 -548 -953 -1721 -1668 -2274 -1703 -765 -593 -115 220 577 442 343 222 39 467 360 -135 357 668 -94 -598 -577 -818 -372 46 -992 -1188 -746 -531 20 538 484 318 280 219 110 466 398 400 474 178 -118 282 510 471 642 268 309 1101 392 49 -148 -331 -225 265 -1 -77 93 304 -135 -203 -314 -625 -694 -300 -416 -683 -917 -354 -22 204 162 -176 -608 -303 162 64 165 50 -178 222 395 486 471 141 712 810 377 271 -33 -370 -204 328 784 655 742 -248 -1464 -779 -418 -392 -44 -279 -779 -751 -494 -540 -256 -153 -633 -499 -484 -113 685 587 520 848 594 721 753 305 273 465 918 1335 1490 1303 56 -682 19 -4 843 827 150 342 263 477 52 -304 -503 -788 -464 -845 -1639 -1673 -2462 -1845 -876 -698 -137 271 716 533 401 246 41 488 369 -151 405 800 -120 -762 -696 -957 -428 54 -1217 -1491 -976 -699 27 743 675 447 393 295 142 582 492 495 629 245 -161 383 700 619 828 342 377 1332 502 65 -196 -449 -310 362 -1 -113 141 454 -204 -311 -466 -903 -1023 SS 20250610T011902.2Z 9292.054887 269 1 51.44 2 49.18 73.15 145.86 247.54 0.00 1 0.00 1 0 17 8.582e-03 6.776e-03 1.978e-04 1.333e-04 1.865059e-01 6.969404e-05 1.988370e-03 -6.000000e+00 5.040234e-03 228.80 -2.00 3.10 -2.00 315.10 0.00e+00 3.382520e-04 6.419785e-06 5.539165e-05 -6.000000e+00 2.350899e-04 295.18 -2.00 20.00 -2.00 314.31 0.00e+00 1.527 0.000 302.00 328.00 3 8.6413e-01 1.7879e-04 1.7302e-02 -6.0000e+00 1.2487e-02 1.2106e-02 1.9888e-04 8.4716e-03 -6.0000e+00 1.3519e-02 -2.4426e-03 1.1369e-04 4.1043e-03 -6.0000e+00 8.1122e-03 -5.3362e-03 5.0243e-05 1.1325e-03 -6.0000e+00 3.4528e-03 4.0973e-02 -1.5734e-04 3.9700e-06 1.5938e-05 -6.0000e+00 2.5091e-04 4.7181e-04 0.0000e+00 11 8 0 10 0 0 76.58 24.15 0.38 0.00047 -0.00071 1922 321 1 5 0 26.730 26.21 20.00 24.15 39.92 21.1 1052.55 -933 -1217 -2108 -3023 -1189 127 792 668 -554 -1714 -850 531 163 431 122 -362 545 824 1027 933 255 1406 1584 750 494 26 -667 -402 781 1720 1328 1417 -425 -2721 -1460 -769 -664 -122 -442 -1057 -978 -656 -746 -347 -225 -850 -652 -663 -117 891 681 640 1018 735 865 881 376 369 549 1043 1470 1635 1332 70 -734 3 9 993 856 158 333 222 436 50 -308 -554 -874 -530 -992 -1672 -1673 -2248 -1682 -754 -571 -144 181 575 441 351 250 68 471 404 -100 358 629 -102 -611 -560 -804 -348 78 -1013 -1195 -741 -542 15 520 455 312 253 234 124 427 428 404 480 145 -109 289 480 479 646 284 312 1113 438 60 -154 -308 -233 263 2 -101 103 292 -165 -216 -316 -634 -667 -305 -418 -717 -941 -358 38 231 215 -195 -620 -301 195 61 182 53 -167 256 397 508 473 130 711 776 386 264 14 -353 -210 380 835 679 765 -229 -1455 -782 -400 -388 -79 -317 -809 -751 -517 -597 -277 -178 -664 -518 -509 -88 677 548 515 855 610 730 754 325 314 462 891 1321 1507 1305 70 -692 3 8 860 821 161 342 231 443 50 -295 -502 -739 -450 -925 -1591 -1677 -2431 -1820 -862 -672 -171 223 712 531 409 278 71 490 432 -112 421 750 -129 -774 -672 -936 -398 91 -1239 -1494 -965 -710 20 715 630 437 352 313 158 529 525 496 632 197 -147 389 655 626 828 360 378 1336 557 78 -202 -414 -318 369 3 -147 154 432 -247 -327 -464 -908 -974