File name: Pandora222s1_DaNang_20251124_L2Fit_fout2c3d20240301p1-8.txt File generation date: 20251124T164318.2Z Data description: Level 2 spectral fitting results file Data file version: fout2c3p1-8 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 v1.8.75 Instrument operation file used: Pandora222_OF_v2d20220422.txt Instrument calibration file used: Pandora222s1_CF_v3d20240301.txt Level 1 file used: Pandora222s1_DaNang_20251124_L1_smca1c3d20240301p1-8.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: 20251124 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: OoB based on session 2 First and last pixel inside fitting window: 198 339 Nominal wavelengths inside fitting window [nm]: 305.1164 305.2580 305.3995 305.5410 305.6825 305.8240 305.9655 306.1070 306.2485 306.3899 306.5313 306.6728 306.8142 306.9556 307.0970 307.2384 307.3798 307.5211 307.6625 307.8038 307.9452 308.0865 308.2278 308.3691 308.5104 308.6517 308.7930 308.9342 309.0755 309.2167 309.3579 309.4991 309.6403 309.7815 309.9227 310.0639 310.2050 310.3462 310.4873 310.6284 310.7695 310.9106 311.0517 311.1928 311.3339 311.4749 311.6160 311.7570 311.8980 312.0391 312.1801 312.3211 312.4620 312.6030 312.7440 312.8849 313.0258 313.1668 313.3077 313.4486 313.5895 313.7304 313.8712 314.0121 314.1529 314.2938 314.4346 314.5754 314.7162 314.8570 314.9978 315.1385 315.2793 315.4200 315.5608 315.7015 315.8422 315.9829 316.1236 316.2643 316.4050 316.5456 316.6863 316.8269 316.9675 317.1081 317.2487 317.3893 317.5299 317.6705 317.8110 317.9516 318.0921 318.2326 318.3731 318.5136 318.6541 318.7946 318.9351 319.0755 319.2160 319.3564 319.4968 319.6372 319.7776 319.9180 320.0584 320.1988 320.3391 320.4795 320.6198 320.7601 320.9004 321.0407 321.1810 321.3213 321.4616 321.6018 321.7420 321.8823 322.0225 322.1627 322.3029 322.4431 322.5833 322.7234 322.8636 323.0037 323.1438 323.2840 323.4241 323.5642 323.7042 323.8443 323.9844 324.1244 324.2645 324.4045 324.5445 324.6845 324.8245 324.9645 --------------------------------------------------------------------------------------- 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 20251124T043907.6Z 9459.193838 226 1 51.37 2 36.61 182.07 62.31 133.74 0.00 1 0.00 1 0 17 8.404e-03 6.971e-03 5.271e-04 4.000e-04 1.354118e-01 2.083537e-04 1.461017e-03 -6.000000e+00 4.883296e-03 226.07 -2.00 3.10 -2.00 314.40 0.00e+00 3.183549e-04 1.694975e-05 2.736123e-05 -6.000000e+00 2.288882e-04 293.84 -2.00 20.00 -2.00 313.71 0.00e+00 1.245 0.000 302.00 328.00 3 3.2116e+00 5.2828e-04 1.3700e-02 -6.0000e+00 1.2026e-02 3.0436e-02 5.8700e-04 6.1265e-03 -6.0000e+00 1.3052e-02 -6.0839e-04 3.3739e-04 2.9795e-03 -6.0000e+00 7.8431e-03 -7.0060e-03 1.4671e-04 8.4054e-04 -6.0000e+00 3.3493e-03 5.7197e-03 2.1757e-04 1.1930e-05 1.2390e-05 -6.0000e+00 2.4553e-04 6.8413e-03 1.1953e-04 11 8 0 10 0 0 99.98 22.86 0.44 0.00684 0.00848 389 65 1 5 0 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259 220 499 27 -351 -439 -768 -338 -1039 -1727 -1751 -2429 -1618 -871 -720 -147 296 686 493 325 214 27 566 459 -93 427 778 -253 -710 -609 -857 -155 90 -1322 -1428 -915 -664 193 848 719 406 452 309 170 579 400 436 535 52 -250 301 556 510 765 250 483 1286 480 67 -222 -364 -175 348 -8 -208 216 449 -249 -307 -459 -903 -860 SS 20251124T044423.8Z 9459.197498 229 1 51.38 2 36.68 184.14 61.42 134.55 0.00 1 0.00 1 0 17 8.361e-03 6.918e-03 5.066e-04 3.790e-04 1.357643e-01 1.980491e-04 1.464802e-03 -6.000000e+00 4.858105e-03 226.07 -2.00 3.10 -2.00 314.48 0.00e+00 2.846574e-04 1.634128e-05 2.755362e-05 -6.000000e+00 2.277032e-04 293.84 -2.00 20.00 -2.00 313.79 0.00e+00 1.246 0.000 302.00 328.00 3 3.0797e+00 5.0306e-04 1.3719e-02 -6.0000e+00 1.1964e-02 2.9700e-02 5.5883e-04 6.1426e-03 -6.0000e+00 1.2985e-02 -1.1488e-03 3.2103e-04 2.9871e-03 -6.0000e+00 7.8026e-03 -6.8103e-03 1.4006e-04 8.3946e-04 -6.0000e+00 3.3320e-03 6.5184e-03 2.3293e-04 1.1351e-05 1.2306e-05 -6.0000e+00 2.4426e-04 6.8806e-03 1.2626e-04 11 8 0 10 0 0 100.00 22.87 0.41 0.00688 0.00863 567 95 1 5 0 90.610 24.75 20.00 22.87 34.37 21.8 977.85 -898 -917 -2081 -2496 -463 592 1136 604 -530 -1623 -350 892 293 627 28 -400 632 709 1110 717 226 1582 1452 616 352 -190 -832 -231 1020 1666 1207 1332 -883 -2696 -1147 -653 -694 -182 -583 -1217 -1018 -668 -735 -367 -431 -935 -705 -691 -21 975 619 621 961 740 868 938 400 425 601 1140 1408 1507 1197 -163 -709 0 68 1100 738 -36 265 241 456 -40 -290 -571 -790 -340 -1048 -1651 -1709 -2287 -1487 -649 -591 -123 215 580 392 334 159 116 672 481 -100 419 632 -254 -609 -513 -676 -205 180 -1094 -1163 -760 -568 94 621 478 265 296 199 167 506 386 400 442 6 -215 157 429 380 671 148 415 1212 318 99 -269 -311 -103 328 -4 -190 142 293 -176 -219 -360 -627 -599 -364 -385 -858 -928 -167 209 426 230 -218 -681 -142 370 133 314 14 -212 335 383 611 404 128 879 831 369 218 -119 -502 -127 565 913 688 731 -512 -1530 -659 -389 -430 -122 -458 -998 -874 -587 -654 -324 -377 -802 -579 -545 -17 801 500 524 843 670 795 867 372 389 547 1052 1282 1467 1229 -169 -684 0 60 977 726 -37 285 247 484 -40 -283 -501 -688 -295 -930 -1634 -1737 -2494 -1586 -732 -715 -148 267 724 475 397 172 121 701 482 -109 470 774 -312 -740 -623 -768 -236 199 -1327 -1414 -962 -749 122 833 666 369 393 258 210 591 448 484 543 9 -295 214 569 483 848 179 475 1461 381 124 -334 -393 -132 431 -5 -265 203 428 -260 -316 -507 -860 -811 SS 20251124T064015.3Z 9459.277955 306 1 51.19 2 47.98 221.31 46.19 159.61 0.00 1 0.00 1 0 17 9.670e-03 6.722e-03 5.402e-03 2.620e-03 1.628031e-01 1.333311e-03 1.752770e-03 -6.000000e+00 5.618251e-03 226.07 -2.00 3.10 -2.00 316.45 0.00e+00 3.778008e-04 1.637499e-04 1.594361e-04 -6.000000e+00 2.633441e-04 293.84 -2.00 20.00 -2.00 315.56 0.00e+00 1.491 0.000 302.00 328.00 3 5.6131e+00 3.4575e-03 1.6429e-02 -6.0000e+00 1.3836e-02 4.9169e-02 3.8899e-03 7.3703e-03 -6.0000e+00 1.5017e-02 3.1797e-03 2.2391e-03 3.5823e-03 -6.0000e+00 9.0235e-03 -1.0025e-02 1.0486e-03 9.9471e-04 -6.0000e+00 3.8535e-03 3.8139e-04 3.8940e-04 7.9653e-05 1.2582e-05 -6.0000e+00 2.8249e-04 6.0732e-03 8.6498e-05 11 9 0 11 16 0 100.00 22.89 0.57 0.00607 0.00900 46 8 1 5 0 1112.680 24.75 20.00 22.89 33.18 21.8 971.82 -2369 25 -2449 -2345 -1873 -598 1066 1884 -2174 -1736 -1214 -505 -624 1243 648 -240 1089 741 1235 195 314 2052 1629 68 926 -444 -1536 -1129 -302 1186 1207 1232 -741 -2227 -1126 -1703 -2320 -84 -791 -997 -374 -192 -302 218 -200 -1282 -10 -906 211 133 681 251 997 744 1022 841 -32 711 342 1233 1854 2011 1402 266 -391 -367 -838 585 1119 472 586 100 749 353 -362 -948 -1096 -1022 -1386 -1789 -1695 -2094 -1635 -251 -29 188 460 765 531 178 -74 -186 106 -46 -459 371 605 230 -514 -609 -941 -707 -260 -1151 -1058 -636 -191 237 929 599 570 483 290 -71 -75 22 49 316 319 -10 146 494 343 422 156 -358 862 75 228 -347 -225 -70 305 69 -20 269 242 -40 -44 -184 -648 -715 -473 6 -542 -467 -337 -106 200 385 -497 -399 -274 -118 -161 350 201 -79 360 252 428 70 112 719 592 26 363 -179 -599 -404 -101 394 418 448 -285 -838 -399 -635 -982 -41 -454 -636 -249 -131 -210 150 -137 -869 -7 -568 128 82 443 172 708 547 759 633 -25 528 278 1017 1461 1696 1254 241 -330 -312 -681 480 1010 472 560 97 775 345 -323 -764 -821 -771 -1147 -1652 -1716 -2273 -1852 -271 -33 229 580 970 653 204 -85 -194 105 -47 -508 448 728 293 -648 -800 -1155 -824 -311 -1499 -1458 -830 -259 333 1362 917 873 708 394 -98 -96 28 65 449 441 -14 207 751 500 580 204 -449 1068 98 315 -502 -331 -105 469 102 -32 430 395 -65 -71 -287 -991 -1078