File name: Pandora77s1_Singapore-NUS_20250811_L2Fit_fout2c3d20230113p1-8.txt
File generation date: 20250811T172112.2Z
Data description: Level 2 spectral fitting results file
Data file version: fout2c3p1-8
Local principal investigator: Santo V. Salinas
Network principal investigator: Alexander Cede
Instrument type: Pandora
Instrument number: 77
Spectrometer number: 1
Processing software version used: BlickP v1.8.75
Instrument operation file used: Pandora77_OF_v2d20220405.txt
Instrument calibration file used: Pandora77s1_CF_v3d20230113.txt
Level 1 file used: Pandora77s1_Singapore-NUS_20250811_L1_smca1c3d20230113p1-8.txt
Full location name: Centre for Remote Imaging Sensing and Processing (CRISP), National University of
Short location name: Singapore-NUS
Country of location: Singapore
Location latitude [deg]: 1.2990
Location longitude [deg]: 103.7710
Location altitude [m]: 77
Local noon date: 20250811
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: 196 338
Nominal wavelengths inside fitting window [nm]: 305.0008 305.1420 305.2832 305.4244 305.5656 305.7068 305.8480 305.9891 306.1303 306.2714 306.4126 306.5537 306.6948 306.8359 306.9770 307.1181 307.2591 307.4002 307.5412 307.6822 307.8233 307.9643 308.1053 308.2463 308.3872 308.5282 308.6691 308.8101 308.9510 309.0919 309.2328 309.3737 309.5146 309.6555 309.7964 309.9372 310.0780 310.2189 310.3597 310.5005 310.6413 310.7821 310.9228 311.0636 311.2043 311.3451 311.4858 311.6265 311.7672 311.9079 312.0486 312.1893 312.3299 312.4706 312.6112 312.7518 312.8924 313.0331 313.1736 313.3142 313.4548 313.5953 313.7359 313.8764 314.0169 314.1574 314.2979 314.4384 314.5789 314.7194 314.8598 315.0003 315.1407 315.2811 315.4215 315.5619 315.7023 315.8427 315.9830 316.1234 316.2637 316.4040 316.5444 316.6847 316.8250 316.9652 317.1055 317.2458 317.3860 317.5262 317.6665 317.8067 317.9469 318.0871 318.2272 318.3674 318.5076 318.6477 318.7878 318.9279 319.0680 319.2081 319.3482 319.4883 319.6284 319.7684 319.9084 320.0485 320.1885 320.3285 320.4685 320.6085 320.7484 320.8884 321.0283 321.1683 321.3082 321.4481 321.5880 321.7279 321.8678 322.0076 322.1475 322.2873 322.4271 322.5670 322.7068 322.8466 322.9863 323.1261 323.2659 323.4056 323.5454 323.6851 323.8248 323.9645 324.1042 324.2439 324.3835 324.5232 324.6628 324.8025 324.9421
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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 100-242: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting
Columns 243-385: 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 20250811T002603.6Z 9354.018097 254 1 13.01 2 71.37 74.34 89.31 261.49 0.00 1 0.00 1 0 17 2.891e-02 6.591e-03 9.577e-03 1.632e-03 3.456501e-01 8.344614e-04 3.588493e-03 -6.000000e+00 1.670133e-02 227.77 -2.00 3.05 -2.00 318.40 0.00e+00 8.502449e-04 1.695698e-04 4.258377e-04 -6.000000e+00 7.707406e-04 293.27 -2.00 20.00 -2.00 317.48 0.00e+00 3.091 0.000 302.00 328.00 3 2.2584e+00 2.2689e-03 3.4070e-02 -6.0000e+00 4.1333e-02 2.1606e-02 2.6005e-03 1.5733e-02 -6.0000e+00 4.4776e-02 -2.2443e-02 1.6971e-03 7.6461e-03 -6.0000e+00 2.6844e-02 3.3147e-03 8.8517e-04 2.1353e-03 -6.0000e+00 1.1545e-02 1.7858e-03 -3.1711e-04 4.8188e-05 2.4058e-05 -6.0000e+00 8.0499e-04 -6.0129e-03 -1.3778e-05 12 9 1 12 17 1 71.66 24.95 0.32 -0.00601 -0.00840 36 27 1 5 0 351.370 27.26 20.00 24.95 27.56 14.5 959.32 900000 -4237 -7506 -3779 -14167 -10306 -14500 -4805 -7483 -5054 -12778 -6380 -1338 -7661 1303 -1257 822 859 2578 1203 2329 347 1116 696 207 1382 -1257 -1463 -3642 -256 -1366 817 400 -824 -3982 -3799 -3150 -2726 191 -523 567 -505 535 -77 147 163 -12 198 -770 139 -5 1286 685 957 780 1436 1071 64 378 -103 1080 1069 2167 2192 1167 268 -251 -388 263 1007 469 911 281 748 -282 -528 -1203 -2132 -1724 -1916 -1325 -1853 -1892 -1788 -945 -104 267 475 821 1029 341 237 -239 143 -100 93 512 508 281 -179 -389 -1023 -741 -653 -1216 -1152 -716 -515 336 698 721 558 414 78 -200 60 -253 289 254 162 98 195 570 274 232 -151 251 557 363 94 -287 -136 -247 27 -134 9 224 270 216 -22 -224 -590 -354 900000 -200 -431 -208 -785 -507 -759 -253 -459 -330 -923 -440 -98 -700 128 -146 102 112 350 173 343 52 168 111 36 247 -236 -267 -637 -42 -241 156 85 -191 -926 -841 -729 -722 59 -177 214 -206 225 -33 64 71 -5 85 -333 60 -2 627 361 535 459 864 608 37 233 -63 664 643 1415 1557 867 192 -169 -254 179 766 369 757 237 610 -236 -401 -831 -1408 -1172 -1468 -1152 -1673 -1857 -1851 -960 -113 305 562 978 1192 372 256 -240 138 -102 98 599 619 372 -239 -494 -1287 -866 -768 -1548 -1459 -947 -716 492 1025 1133 907 661 118 -281 84 -353 415 366 249 154 304 859 400 344 -215 339 752 526 140 -455 -224 -418 44 -236 17 403 497 401 -39 -415 -1054 -615
SS 20250811T003201.0Z 9354.022234 258 1 50.56 2 69.94 74.24 90.73 261.55 0.00 1 0.00 1 0 17 2.434e-02 6.462e-03 7.377e-03 1.320e-03 3.229265e-01 6.730924e-04 3.337540e-03 -6.000000e+00 1.405869e-02 227.77 -2.00 3.05 -2.00 318.30 0.00e+00 8.144305e-04 1.336513e-04 3.530404e-04 -6.000000e+00 6.487944e-04 293.27 -2.00 20.00 -2.00 317.38 0.00e+00 2.884 0.000 302.00 328.00 3 3.3614e+00 1.8258e-03 3.1778e-02 -6.0000e+00 3.4793e-02 1.3174e-02 2.0915e-03 1.4649e-02 -6.0000e+00 3.7691e-02 -4.4336e-04 1.3499e-03 7.1186e-03 -6.0000e+00 2.2597e-02 -7.7911e-03 7.0117e-04 1.9937e-03 -6.0000e+00 9.7181e-03 7.4286e-04 -3.8543e-04 3.9070e-05 2.2288e-05 -6.0000e+00 6.7763e-04 -5.4079e-03 2.2200e-06 11 8 0 10 0 0 99.98 24.93 0.42 -0.00541 -0.00830 182 34 1 5 0 277.760 27.26 20.01 24.93 27.67 14.5 960.48 900000 -6431 2327 -10613 3289 -15352 -3895 -2261 -2898 -9275 -6776 -542 -7029 -6326 -174 1996 704 -730 1626 1215 2483 2794 1251 -449 879 -1149 1065 -834 1553 -1614 1072 -386 593 634 -4503 -1748 -3846 -1395 -1341 -1461 599 -872 -115 -847 174 -383 383 -916 -970 -802 -190 415 891 1517 1223 1529 570 536 431 161 474 865 1967 1987 1850 260 -325 -959 549 755 804 863 675 298 199 -677 -1257 -1795 -1590 -1664 -1305 -1806 -2055 -1843 -628 -251 195 435 906 965 614 156 -343 -234 -145 145 555 625 344 -278 -453 -866 -591 -643 -920 -885 -680 -552 273 816 670 524 109 43 -347 106 -250 478 102 189 -6 391 312 416 239 -79 175 368 213 -267 -90 -177 -124 -26 -117 143 209 398 96 69 -303 -437 -467 900000 -342 121 -686 168 -872 -201 -127 -186 -691 -504 -38 -587 -614 -19 239 93 -103 236 185 386 434 199 -77 158 -222 206 -159 271 -283 192 -77 130 148 -1081 -389 -919 -373 -430 -509 231 -365 -50 -377 77 -171 169 -404 -424 -351 -87 204 467 840 712 912 351 332 263 97 291 564 1389 1396 1343 182 -233 -671 394 558 662 752 596 257 161 -501 -920 -1247 -1134 -1220 -1085 -1686 -2087 -1819 -652 -279 229 529 1107 1148 686 161 -354 -232 -150 153 653 762 454 -371 -574 -1092 -694 -761 -1176 -1120 -900 -769 398 1185 1040 839 171 63 -512 146 -341 674 153 284 -9 595 463 637 348 -110 233 488 302 -412 -138 -281 -203 -44 -198 254 383 743 181 127 -541 -751 -835