File name: Pandora217s1_Dalanzadgad_20250820_L2Fit_fwvt1c7d20220418p1-8.txt
File generation date: 20250828T013437.3Z
Data description: Level 2 spectral fitting results file
Data file version: fwvt1c7p1-8
Local principal investigator: Enkhbaatar Davaanyam
Network principal investigator: Alexander Cede
Instrument type: Pandora
Instrument number: 217
Spectrometer number: 1
Processing software version used: BlickP v1.8.75
Instrument operation file used: Pandora217_OF_v4d20211203.txt
Instrument calibration file used: Pandora217s1_CF_v7d20220418.txt
Level 1 file used: Pandora217s1_Dalanzadgad_20250820_L1_smca1c7d20220418p1-8.txt
Full location name: Center for Meteorology, Hydrology and Environmental Monitoring, Dalanzadgad
Short location name: Dalanzadgad
Country of location: Mongolia
Location latitude [deg]: 43.5773
Location longitude [deg]: 104.4191
Location altitude [m]: 1466
Local noon date: 20250820
Notes on s-number (L1 configuration): Corrections NOT applied although requested by the s-number are dark map for dark correction (replaced by immediate dark method), latency correction, matrix method stray light correction (replaced by simple method)
Data caveats: None
First and last pixel inside fitting window: 1623 1772
Nominal wavelengths inside fitting window [nm]: 492.0453 492.1666 492.2879 492.4092 492.5304 492.6517 492.7729 492.8941 493.0153 493.1365 493.2576 493.3788 493.4999 493.6210 493.7421 493.8632 493.9842 494.1053 494.2263 494.3473 494.4683 494.5893 494.7102 494.8312 494.9521 495.0730 495.1939 495.3148 495.4356 495.5565 495.6773 495.7981 495.9189 496.0397 496.1605 496.2812 496.4019 496.5226 496.6433 496.7640 496.8847 497.0053 497.1260 497.2466 497.3672 497.4878 497.6083 497.7289 497.8494 497.9699 498.0904 498.2109 498.3314 498.4518 498.5722 498.6927 498.8131 498.9334 499.0538 499.1742 499.2945 499.4148 499.5351 499.6554 499.7757 499.8959 500.0162 500.1364 500.2566 500.3768 500.4969 500.6171 500.7372 500.8574 500.9775 501.0976 501.2176 501.3377 501.4577 501.5777 501.6978 501.8177 501.9377 502.0577 502.1776 502.2975 502.4175 502.5374 502.6572 502.7771 502.8969 503.0168 503.1366 503.2564 503.3762 503.4959 503.6157 503.7354 503.8551 503.9748 504.0945 504.2142 504.3338 504.4534 504.5731 504.6927 504.8123 504.9318 505.0514 505.1709 505.2904 505.4099 505.5294 505.6489 505.7684 505.8878 506.0072 506.1266 506.2460 506.3654 506.4848 506.6041 506.7235 506.8428 506.9621 507.0814 507.2006 507.3199 507.4391 507.5583 507.6775 507.7967 507.9159 508.0351 508.1542 508.2733 508.3925 508.5116 508.6306 508.7497 508.8688 508.9878 509.1068 509.2258 509.3448 509.4638 509.5827 509.7017 509.8206 509.9395
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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: Water vapor slant column amount [moles per square meter], -9e99=fitting not successful
Column 23: Independent uncertainty of water vapor 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 water vapor 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 water vapor 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 water vapor 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: Water vapor effective temperature [K]
Column 28: Independent uncertainty of water vapor 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 water vapor 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 water vapor 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 water vapor fitting wavelength [nm], -9=fitting not successful
Column 32: Diffuse correction applied before fitting at effective fitting wavelength for water vapor [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction
Column 33: Nitrogen dioxide slant column amount [moles per square meter], -9e99=fitting not successful
Column 34: Independent uncertainty of nitrogen 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 nitrogen 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 nitrogen 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 nitrogen 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: Nitrogen dioxide effective temperature [K]
Column 39: Independent uncertainty of nitrogen 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 nitrogen 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 nitrogen 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 nitrogen dioxide fitting wavelength [nm], -9=fitting not successful
Column 43: Diffuse correction applied before fitting at effective fitting wavelength for nitrogen dioxide [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction
Column 44: Ozone slant column amount [moles per square meter], -9e99=fitting not successful
Column 45: 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 46: 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 47: 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 48: 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 49: Ozone effective temperature [K]
Column 50: 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 51: 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 52: 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 53: Effective ozone fitting wavelength [nm], -9=fitting not successful
Column 54: 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 55: Molecular scattering air mass factor used for molecular scattering subtraction before the fitting
Column 56: Estimated uncertainty of molecular scattering air mass factor, -9=molecular scattering was not subtracted before the fitting
Column 57: Lower limit used for wavelength scaling [nm]
Column 58: Upper limit used for wavelength scaling [nm]
Column 59: Order of smoothing polynomial
Column 60: Smoothing polynomial coefficient, order 0
Column 61: Independent uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 62: Structured uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 63: Common uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 64: rms-based uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 65: Smoothing polynomial coefficient, order 1
Column 66: Independent uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 67: Structured uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 68: Common uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 69: rms-based uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 70: Mean value of measured data inside fitting window [same units as measurements]
Column 71: Wavelength change polynomial coefficient, order 0
Column 72: Independent uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 73: Structured uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 74: Common uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 75: rms-based uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 76: L1 based wavelength change coefficient, order 0, -9=no L1 wavelength change determination
Column 77: L1 based wavelength change coefficient, order 1, -9=no L1 wavelength change determination
Column 78: 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 79: 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 80: 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 81: 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 82: 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 83: 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 84: Atmospheric variability [%], 999=no atmospheric variability was determined
Column 85: Wavelength effective temperature [°C], 999=no effective temperature given
Column 86: Estimated average residual stray light level [%] (only valid for stray light correction methods 2 and higher)
Column 87: Retrieved wavelength shift from L1 data [nm], -9=no wavelength change determination
Column 88: Retrieved total wavelength shift [nm], -9=no wavelength change fitting
Column 89: Number of bright count cycles
Column 90: Number of dark count cycles
Column 91: Effective position of filterwheel #1, 0=filterwheel not used, 1-9 are valid positions
Column 92: Effective position of filterwheel #2, 0=filterwheel not used, 1-9 are valid positions
Column 93: Sum over 2^i, 0=spectra were interpolated in time, 1=spectra are corrected for off-target signal
Column 94: Integration time [ms]
Column 95: Temperature at electronics board [°C], 999=no temperature signal
Column 96: Spectrometer control temperature [°C], 999=no temperature signal
Column 97: Auxiliary spectrometer temperature [°C], 999=no temperature signal
Column 98: Temperature in head sensor [°C], 999=no temperature signal
Column 99: Humidity in head sensor [%], -9=no humidity signal
Column 100: Pressure in head sensor [hPa], -9=no pressure signal
Columns 101-250: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting
Columns 251-400: 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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SQ 20250819T222516.8Z 9362.934222 161 1 48.72 2 88.62 74.06 50.09 89.25 0.00 1 0.00 1 0 29 7.746e-03 7.583e-03 9.729e-04 9.684e-04 2.179945e+04 7.418761e+01 1.471764e+03 -6.000000e+00 4.328975e+02 280.66 -2.00 20.00 -2.00 505.44 0.00e+00 2.295527e-03 2.686990e-05 1.408041e-04 -6.000000e+00 2.173618e-04 280.66 -2.00 20.00 -2.00 500.90 0.00e+00 1.144209e+00 1.903981e-02 1.276168e-01 -6.000000e+00 1.554674e-01 230.66 -2.00 3.53 -2.00 502.43 0.00e+00 17.835 0.107 489.00 513.00 1 5.1433e+00 1.4561e-03 2.7578e-02 -6.0000e+00 1.1913e-02 -4.9668e-02 3.6107e-04 3.6427e-03 -6.0000e+00 3.0841e-03 1.1580e-03 5.7903e-03 8.6681e-05 1.5848e-04 -6.0000e+00 8.1876e-04 2.1294e-02 -2.1902e-04 12 8 8 10 0 0 91.65 20.21 3.87 0.02129 0.06146 16 3 1 4 0 3044.460 21.98 15.00 20.21 26.30 7.0 955.09 -1465 -1033 -360 449 673 1195 1438 1349 1178 857 363 -122 -455 -976 -843 -797 -154 -15 551 390 424 415 646 629 716 567 410 -115 -676 -1122 -1268 -1075 -592 135 210 161 98 -131 -427 -282 -102 204 723 809 690 847 690 256 137 -753 -1175 -1486 -1507 -943 -424 -129 400 575 685 762 854 1083 566 604 257 295 -134 -507 -812 -868 -902 -864 -610 -303 -141 -712 -1014 -985 -823 -973 -473 -758 -610 -550 -379 -803 -636 -296 -317 324 672 874 951 1056 1076 723 297 -464 -1527 -1885 -1900 -1319 -980 -255 -206 -375 -253 -531 -261 -313 -71 46 512 970 1288 1648 1760 1319 739 341 37 -5 318 793 577 692 441 248 286 117 -617 -500 -827 -657 -890 -87 231 261 601 317 581 380 765 667 481 14 -357 -912 -1145 -743 -1272 -910 -326 418 644 1164 1362 1291 1128 815 343 -114 -422 -902 -777 -740 -145 -15 540 388 425 417 650 637 730 580 418 -117 -672 -1092 -1223 -1045 -587 137 210 162 98 -131 -424 -279 -101 204 729 826 713 877 713 262 138 -748 -1141 -1422 -1437 -908 -418 -131 412 596 712 792 890 1134 574 611 270 306 -138 -516 -819 -868 -899 -867 -618 -309 -144 -726 -1021 -975 -805 -948 -460 -745 -605 -552 -385 -790 -624 -288 -319 325 649 851 924 1049 1031 667 265 -405 -1325 -1632 -1668 -1194 -932 -244 -205 -380 -257 -538 -264 -320 -73 48 531 1003 1336 1725 1802 1374 774 353 38 -5 328 817 578 697 447 252 291 118 -625 -500 -824 -658 -905 -89 243 279 652 337 626 414 834 728 523 15 -383 -971 -1217 -793
SQ 20250819T222847.2Z 9362.936658 165 1 49.90 2 88.01 74.66 49.48 89.83 0.00 1 0.00 1 0 22 5.848e-03 5.731e-03 1.128e-03 1.124e-03 2.076815e+04 8.584889e+01 1.399895e+03 -6.000000e+00 3.268537e+02 280.66 -2.00 20.00 -2.00 505.44 0.00e+00 1.913715e-03 3.117923e-05 1.254530e-04 -6.000000e+00 1.640686e-04 280.66 -2.00 20.00 -2.00 500.84 0.00e+00 1.080534e+00 2.220896e-02 1.238640e-01 -6.000000e+00 1.172540e-01 230.66 -2.00 3.53 -2.00 502.38 0.00e+00 16.187 0.080 489.00 513.00 1 5.6216e+00 1.6989e-03 2.4398e-02 -6.0000e+00 8.9865e-03 -4.1728e-02 4.2077e-04 3.4570e-03 -6.0000e+00 2.3231e-03 8.8427e-04 3.9458e-03 1.0145e-04 1.5021e-04 -6.0000e+00 6.1802e-04 1.2664e-02 -8.0379e-05 12 8 8 10 0 0 97.16 20.20 3.02 0.01266 0.04003 15 3 1 4 0 3326.560 21.98 15.00 20.20 26.33 7.0 955.00 -1117 -691 -133 197 673 743 1250 932 847 789 155 -144 -175 -474 -581 -756 -193 -35 489 269 300 238 506 638 560 478 247 -69 -686 -939 -980 -672 -524 -49 -3 343 94 -68 -195 -139 161 -67 400 552 434 301 456 428 2 -510 -836 -1067 -1006 -489 -105 -120 -55 194 654 568 555 627 304 553 448 -77 20 -270 -447 -718 -661 -516 -588 -194 -384 -707 -616 -965 -905 -521 -502 -281 -222 -58 -147 -496 -699 -120 -183 541 395 871 617 919 869 698 215 -457 -1211 -1446 -1422 -986 -765 -317 -325 -405 -427 -208 -63 -223 -74 -71 306 511 1108 1535 1251 866 497 396 -283 -107 71 487 457 537 480 230 -8 103 -395 -422 -411 -635 -489 -189 269 129 685 200 457 336 511 382 445 113 -102 -618 -827 -652 -994 -623 -123 189 631 712 1214 917 833 769 150 -138 -166 -446 -546 -718 -186 -34 490 273 307 244 497 631 558 477 246 -68 -695 -929 -960 -661 -528 -49 -3 350 96 -69 -195 -139 161 -68 409 571 454 316 475 441 2 -509 -814 -1023 -960 -471 -103 -122 -57 203 682 594 582 661 310 560 451 -80 21 -275 -449 -717 -657 -515 -594 -198 -394 -720 -617 -954 -884 -505 -488 -274 -219 -58 -143 -486 -685 -116 -176 540 382 845 601 876 836 646 193 -400 -1050 -1248 -1244 -890 -726 -302 -323 -408 -431 -209 -63 -225 -75 -74 315 527 1141 1593 1272 895 515 405 -285 -110 73 497 470 555 479 230 -8 102 -392 -431 -417 -623 -486 -191 276 136 728 217 501 358 546 408 474 120 -111 -666 -889 -704