File name: Pandora218s1_Vientiane_20250826_L2Fit_fout2c3d20230614p1-8.txt
File generation date: 20250826T171933.3Z
Data description: Level 2 spectral fitting results file
Data file version: fout2c3p1-8
Local principal investigator: Virasith Phomsouvanh
Network principal investigator: Alexander Cede
Instrument type: Pandora
Instrument number: 218
Spectrometer number: 1
Processing software version used: BlickP v1.8.75
Instrument operation file used: Pandora218_OF_v3d20220124.txt
Instrument calibration file used: Pandora218s1_CF_v3d20230614.txt
Level 1 file used: Pandora218s1_Vientiane_20250826_L1_smca1c3d20230614p1-8.txt
Full location name: Laos Ministry of Natural Resources and Environment
Short location name: Vientiane
Country of location: Lao People's Democratic Republic
Location latitude [deg]: 17.9979
Location longitude [deg]: 102.5821
Location altitude [m]: 169
Local noon date: 20250826
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: None
First and last pixel inside fitting window: 201 342
Nominal wavelengths inside fitting window [nm]: 305.0591 305.2004 305.3416 305.4829 305.6241 305.7654 305.9066 306.0478 306.1890 306.3302 306.4714 306.6125 306.7537 306.8949 307.0360 307.1771 307.3182 307.4593 307.6004 307.7415 307.8826 308.0236 308.1647 308.3057 308.4467 308.5877 308.7287 308.8697 309.0107 309.1517 309.2926 309.4336 309.5745 309.7154 309.8564 309.9973 310.1381 310.2790 310.4199 310.5607 310.7016 310.8424 310.9832 311.1241 311.2649 311.4056 311.5464 311.6872 311.8279 311.9687 312.1094 312.2501 312.3908 312.5315 312.6722 312.8129 312.9536 313.0942 313.2349 313.3755 313.5161 313.6567 313.7973 313.9379 314.0785 314.2190 314.3596 314.5001 314.6407 314.7812 314.9217 315.0622 315.2026 315.3431 315.4836 315.6240 315.7645 315.9049 316.0453 316.1857 316.3261 316.4665 316.6068 316.7472 316.8875 317.0279 317.1682 317.3085 317.4488 317.5891 317.7294 317.8696 318.0099 318.1501 318.2904 318.4306 318.5708 318.7110 318.8512 318.9913 319.1315 319.2716 319.4118 319.5519 319.6920 319.8321 319.9722 320.1123 320.2524 320.3924 320.5325 320.6725 320.8125 320.9525 321.0925 321.2325 321.3725 321.5125 321.6524 321.7924 321.9323 322.0722 322.2121 322.3520 322.4919 322.6318 322.7716 322.9115 323.0513 323.1911 323.3310 323.4708 323.6106 323.7503 323.8901 324.0299 324.1696 324.3093 324.4491 324.5888 324.7285 324.8682
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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
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SS 20250826T081305.3Z 9369.342422 405 1 49.72 2 44.59 266.42 27.09 209.77 0.00 1 0.00 1 0 17 7.630e-03 6.137e-03 1.177e-03 7.867e-04 1.701128e-01 4.226514e-04 1.857446e-03 -6.000000e+00 4.624104e-03 227.26 -2.00 3.11 -2.00 315.04 0.00e+00 2.977724e-04 3.874159e-05 5.198215e-05 -6.000000e+00 2.144324e-04 294.31 -2.00 20.00 -2.00 314.29 0.00e+00 1.402 0.000 302.00 328.00 3 4.1141e+00 1.0780e-03 1.5682e-02 -6.0000e+00 1.1417e-02 1.4653e-02 1.1941e-03 7.7770e-03 -6.0000e+00 1.2314e-02 -1.2896e-04 6.8604e-04 3.8030e-03 -6.0000e+00 7.3946e-03 -2.8569e-03 3.0620e-04 1.0681e-03 -6.0000e+00 3.1810e-03 1.8790e-03 -2.7422e-04 2.4758e-05 1.6102e-05 -6.0000e+00 2.3717e-04 4.1623e-03 0.0000e+00 10 0 0 10 0 0 94.06 23.67 0.38 0.00416 0.00210 56 12 1 5 0 887.850 26.00 19.99 23.67 32.57 15.5 970.82 -177 -166 -1907 -2040 -1829 -1131 -65 1039 749 -998 -1214 -622 125 -26 700 213 458 346 686 1066 599 410 1200 744 488 883 -505 -702 112 822 1241 648 853 -1234 -2378 -1118 -1092 -679 123 -578 -1097 -447 -771 -639 -466 -287 -858 -540 -428 230 1312 302 1093 774 587 812 995 371 594 754 1336 1493 1317 1086 -227 -123 -487 -198 931 634 109 229 76 172 -53 -456 -536 -722 -419 -701 -1411 -1374 -2067 -1391 -895 -456 -20 313 212 64 410 14 -13 444 512 423 528 426 12 -327 -459 -848 -855 -29 -679 -883 -595 -496 85 399 504 139 305 104 215 243 511 332 224 169 13 289 215 490 678 564 313 708 408 203 -29 -416 -101 -5 190 -179 -26 -86 -230 -172 -407 -626 -57 -52 -615 -673 -547 -320 -19 327 257 -361 -439 -227 45 -10 306 100 222 172 322 510 291 199 587 380 260 478 -272 -357 57 406 625 345 475 -648 -1312 -607 -594 -426 83 -419 -864 -364 -643 -535 -388 -235 -687 -416 -320 171 1001 245 923 681 496 695 857 319 505 644 1176 1398 1237 1054 -217 -116 -425 -181 839 634 111 241 79 173 -53 -411 -471 -611 -370 -641 -1434 -1426 -2290 -1527 -1045 -535 -24 391 263 76 471 16 -13 473 540 487 630 520 15 -402 -561 -976 -967 -34 -861 -1121 -788 -649 115 568 700 200 416 138 278 300 635 412 299 226 17 388 296 640 885 701 377 865 526 261 -38 -566 -140 -6 275 -270 -38 -129 -344 -251 -608 -914
SS 20250826T081800.5Z 9369.345839 408 1 14.35 2 45.76 266.86 27.70 212.03 0.00 1 0.00 1 0 17 8.131e-03 6.325e-03 2.815e-03 1.826e-03 1.753472e-01 9.808371e-04 1.911597e-03 -6.000000e+00 4.928270e-03 227.26 -2.00 3.11 -2.00 315.14 0.00e+00 4.687998e-04 9.106005e-05 4.847626e-05 -6.000000e+00 2.285249e-04 294.31 -2.00 20.00 -2.00 314.38 0.00e+00 1.431 0.000 302.00 328.00 3 4.4175e+00 2.5085e-03 1.6047e-02 -6.0000e+00 1.2168e-02 2.3497e-02 2.7802e-03 8.0223e-03 -6.0000e+00 1.3124e-02 -1.9867e-03 1.5931e-03 3.9164e-03 -6.0000e+00 7.8808e-03 -3.0006e-03 7.1318e-04 1.1126e-03 -6.0000e+00 3.3906e-03 1.3303e-03 -2.5622e-04 5.7606e-05 1.6793e-05 -6.0000e+00 2.5274e-04 3.4333e-03 0.0000e+00 12 1 1 12 1 1 99.70 23.67 0.35 0.00343 0.00151 11 9 1 5 0 1195.260 26.00 20.00 23.67 32.83 15.5 972.19 440 -559 -1425 -2942 -310 -2425 798 1094 163 -263 -994 54 -843 863 545 -684 612 213 1000 958 983 231 1123 221 586 1249 -464 -1094 -279 1066 1302 743 426 -1173 -2792 -1015 -1273 -714 442 -756 -1013 -797 -295 -1072 -318 -154 -773 -677 22 -418 1076 723 827 719 247 973 896 647 247 374 1243 1380 1394 1413 66 -10 -739 -419 917 499 323 449 -57 364 126 -301 -843 -1138 -424 -528 -1358 -1633 -1872 -1190 -702 -546 -96 194 231 135 451 73 95 335 248 445 379 789 94 -316 -709 -447 -1067 -9 -718 -1042 -434 -559 212 556 399 240 311 146 128 173 266 466 334 98 -387 403 268 280 714 238 447 937 363 107 -78 -647 55 -193 287 -152 -113 91 0 -162 -229 -798 131 -180 -462 -909 -85 -645 213 319 52 -87 -333 18 -310 347 223 -303 277 99 475 466 484 114 559 115 316 684 -254 -567 -135 494 618 374 225 -630 -1463 -521 -710 -423 304 -555 -807 -616 -232 -853 -250 -120 -628 -531 16 -318 838 596 666 602 212 844 784 564 213 325 1111 1313 1323 1383 64 -10 -659 -366 843 477 332 478 -61 370 120 -276 -760 -989 -383 -491 -1319 -1727 -1981 -1321 -829 -647 -119 245 290 162 526 78 99 342 267 491 460 972 120 -394 -833 -521 -1228 -11 -872 -1338 -580 -739 292 796 559 332 428 196 159 218 338 586 450 133 -535 546 352 370 893 301 546 1160 449 139 -106 -896 78 -269 420 -220 -168 137 1 -239 -346 -1179