File name: Pandora216s1_Ulaanbaatar_20240625_L2Fit_fwvt1c3d20230802p1-8.txt File generation date: 20241021T213102.2Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c3p1-8 Local principal investigator: Enkhbaatar Davaanyam Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 216 Spectrometer number: 1 Processing software version used: BlickP v1.8.60 Instrument operation file used: Pandora216_OF_v4d20211104.txt Instrument calibration file used: Pandora216s1_CF_v3d20230802.txt Level 1 file used: Pandora216s1_Ulaanbaatar_20240625_L1_smca1c3d20230802p1-8.txt Full location name: Center for Meteorology, Hydrology and Environmental Monitoring, Ulaanbaatar Short location name: Ulaanbaatar Country of location: Mongolia Location latitude [deg]: 47.9188 Location longitude [deg]: 106.8480 Location altitude [m]: 1305 Local noon date: 20240625 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: Clearance session after repairs based on lab analysis from session 2 First and last pixel inside fitting window: 1611 1760 Nominal wavelengths inside fitting window [nm]: 492.0421 492.1637 492.2853 492.4068 492.5284 492.6499 492.7714 492.8929 493.0144 493.1359 493.2573 493.3787 493.5001 493.6215 493.7429 493.8643 493.9856 494.1069 494.2283 494.3495 494.4708 494.5921 494.7133 494.8346 494.9558 495.0770 495.1981 495.3193 495.4404 495.5615 495.6827 495.8037 495.9248 496.0459 496.1669 496.2879 496.4089 496.5299 496.6509 496.7718 496.8928 497.0137 497.1346 497.2555 497.3764 497.4972 497.6180 497.7389 497.8597 497.9804 498.1012 498.2220 498.3427 498.4634 498.5841 498.7048 498.8255 498.9461 499.0667 499.1873 499.3079 499.4285 499.5491 499.6696 499.7902 499.9107 500.0312 500.1516 500.2721 500.3925 500.5130 500.6334 500.7538 500.8741 500.9945 501.1148 501.2352 501.3555 501.4757 501.5960 501.7163 501.8365 501.9567 502.0769 502.1971 502.3173 502.4374 502.5576 502.6777 502.7978 502.9179 503.0379 503.1580 503.2780 503.3980 503.5180 503.6380 503.7580 503.8779 503.9979 504.1178 504.2377 504.3575 504.4774 504.5972 504.7171 504.8369 504.9567 505.0764 505.1962 505.3159 505.4357 505.5554 505.6751 505.7947 505.9144 506.0340 506.1536 506.2732 506.3928 506.5124 506.6319 506.7515 506.8710 506.9905 507.1100 507.2294 507.3489 507.4683 507.5877 507.7071 507.8265 507.9459 508.0652 508.1846 508.3039 508.4232 508.5424 508.6617 508.7809 508.9002 509.0194 509.1386 509.2577 509.3769 509.4960 509.6151 509.7343 509.8533 509.9724 --------------------------------------------------------------------------------------- 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 --------------------------------------------------------------------------------------- SQ 20240624T212059.4Z 8941.889576 181 1 49.96 2 87.22 57.38 74.53 205.36 0.00 1 0.00 1 0 22 4.606e-03 4.543e-03 5.954e-04 5.944e-04 1.548856e+04 4.026112e+01 1.056459e+03 -6.000000e+00 2.402135e+02 277.07 -2.00 20.00 -2.00 505.36 0.00e+00 4.704930e-03 1.600683e-05 2.634314e-04 -6.000000e+00 1.254909e-04 277.07 -2.00 20.00 -2.00 500.71 0.00e+00 1.514831e+00 1.159257e-02 1.061874e-01 -6.000000e+00 9.027242e-02 232.59 -2.00 3.66 -2.00 502.26 0.00e+00 14.143 0.057 489.00 513.00 1 5.5825e+00 8.8381e-04 2.1653e-02 -6.0000e+00 6.8895e-03 -2.4689e-02 2.2553e-04 2.7620e-03 -6.0000e+00 1.8109e-03 1.0727e-03 -1.4457e-04 4.6816e-05 1.5133e-04 -6.0000e+00 3.9903e-04 2.1662e-03 -1.5932e-04 11 9 0 11 4 0 86.86 19.81 1.27 0.00217 0.00116 24 4 1 4 0 2081.570 22.09 15.00 19.81 22.29 2.5 927.38 -1161 -777 -409 -39 312 569 627 791 639 382 22 37 -384 -418 -568 -448 -281 35 106 395 200 130 195 103 382 529 454 196 -187 -458 -798 -642 -486 -30 326 1319 192 141 -138 -160 -231 -25 72 328 492 440 503 407 125 -184 -710 -949 -887 -783 -394 -114 305 401 387 303 142 309 363 607 368 180 -18 -68 -318 -499 -545 -514 -271 -277 54 -52 -390 -536 -513 -631 -467 -404 -335 -242 -96 39 -227 -43 -282 23 57 367 748 724 840 549 284 -154 -596 -1042 -1198 -974 -441 -317 139 72 -109 -387 -403 -263 -106 -19 299 554 556 653 866 695 506 161 -123 -132 0 225 385 518 349 299 207 92 128 -146 -222 -521 -234 -289 51 306 208 340 96 212 332 213 262 38 -209 -599 -786 -743 -1078 -725 -383 -38 306 570 626 800 648 383 22 36 -380 -406 -550 -435 -276 34 107 394 200 130 196 104 389 541 465 200 -187 -451 -773 -623 -479 -30 330 1337 195 141 -141 -162 -235 -25 73 339 504 454 517 424 129 -185 -713 -931 -880 -765 -396 -116 310 413 398 311 146 321 379 632 381 184 -19 -69 -320 -495 -536 -508 -271 -280 55 -53 -387 -523 -505 -617 -456 -399 -332 -236 -95 39 -226 -42 -275 22 56 366 753 723 814 526 269 -142 -551 -951 -1096 -891 -411 -306 136 71 -108 -376 -399 -258 -106 -18 298 554 558 659 891 713 518 162 -125 -131 0 223 384 520 353 303 210 94 128 -144 -222 -511 -229 -291 51 312 216 351 101 223 351 226 277 40 -214 -617 -802 -764 SQ 20240624T212358.8Z 8941.891653 184 1 12.42 2 86.80 57.92 74.73 206.02 0.00 1 0.00 1 0 22 4.257e-03 4.208e-03 2.586e-04 2.582e-04 1.502788e+04 1.739310e+01 1.034383e+03 -6.000000e+00 2.220505e+02 277.07 -2.00 20.00 -2.00 505.35 0.00e+00 4.485746e-03 6.946033e-06 2.511132e-04 -6.000000e+00 1.159991e-04 277.07 -2.00 20.00 -2.00 500.66 0.00e+00 1.419228e+00 5.039502e-03 1.016780e-01 -6.000000e+00 8.347800e-02 232.59 -2.00 3.66 -2.00 502.22 0.00e+00 13.147 0.046 489.00 513.00 1 2.6696e+00 3.8403e-04 2.0017e-02 -6.0000e+00 6.3704e-03 -2.0309e-02 9.8384e-05 2.6408e-03 -6.0000e+00 1.6754e-03 2.2533e-02 4.9104e-04 2.0383e-05 1.5115e-04 -6.0000e+00 3.6884e-04 9.6471e-03 -2.4026e-04 12 9 1 12 5 1 -6.37 19.80 1.00 0.00965 0.01305 111 85 1 4 0 110.840 22.09 14.99 19.80 22.41 2.5 927.33 -1052 -844 -348 34 372 603 681 721 562 430 160 11 -255 -403 -439 -337 -216 -69 117 286 215 115 147 206 290 412 456 215 -150 -476 -716 -626 -450 -64 301 1346 198 -77 -195 -208 -190 -67 134 328 416 446 370 312 94 -300 -650 -845 -920 -733 -386 -71 226 321 284 209 215 381 383 425 272 177 38 -151 -386 -476 -542 -395 -293 -162 -22 -35 -150 -451 -502 -566 -445 -333 -249 -260 -98 -19 -158 -249 -119 16 117 346 556 741 723 539 272 -238 -665 -866 -985 -901 -500 -272 64 78 -160 -347 -396 -325 -127 15 210 427 551 679 745 647 448 187 25 -33 147 152 347 359 314 309 220 18 73 -60 -260 -346 -287 -180 126 333 259 184 232 134 233 336 262 82 -191 -579 -723 -725 -983 -794 -331 33 365 604 683 734 573 433 160 11 -252 -392 -424 -327 -212 -68 118 288 217 116 149 210 298 419 463 217 -151 -470 -707 -609 -444 -64 308 1379 203 -78 -197 -211 -191 -68 137 336 432 466 386 322 96 -305 -654 -830 -910 -717 -388 -73 232 334 290 217 220 392 397 440 280 182 38 -152 -391 -474 -535 -392 -293 -161 -22 -35 -149 -442 -494 -552 -434 -328 -242 -255 -97 -19 -158 -247 -117 15 116 340 554 731 705 517 257 -222 -608 -795 -906 -834 -474 -263 63 78 -159 -340 -386 -321 -126 15 212 432 559 681 762 662 457 191 25 -33 145 152 349 358 315 310 220 18 72 -60 -256 -341 -283 -178 126 338 267 189 241 138 241 349 271 86 -195 -591 -731 -738