File name: Pandora281s1_CambridgeBay_20240827_L2Fit_fout2c2d20240201p1-8.txt File generation date: 20240828T070840.9Z Data description: Level 2 spectral fitting results file Data file version: fout2c2p1-8 Local principal investigator: Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 281 Spectrometer number: 1 Processing software version used: BlickP v1.8.59 Instrument operation file used: Pandora281_OF_v1d20230823.txt Instrument calibration file used: Pandora281s1_CF_v2d20240201.txt Level 1 file used: Pandora281s1_CambridgeBay_20240827_L1_smca1c2d20240201p1-8.txt Full location name: Cambridge Bay, Nunavut: Canadian High Arctic Reseach Station Short location name: CambridgeBay Country of location: Canada Location latitude [deg]: 69.1212 Location longitude [deg]: -105.0398 Location altitude [m]: 10 Local noon date: 20240827 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: OoB based on session 1 First and last pixel inside fitting window: 197 339 Nominal wavelengths inside fitting window [nm]: 305.1335 305.2741 305.4146 305.5551 305.6956 305.8361 305.9766 306.1171 306.2575 306.3980 306.5384 306.6788 306.8193 306.9597 307.1001 307.2405 307.3808 307.5212 307.6615 307.8019 307.9422 308.0825 308.2228 308.3631 308.5034 308.6437 308.7840 308.9242 309.0645 309.2047 309.3449 309.4851 309.6253 309.7655 309.9057 310.0458 310.1860 310.3261 310.4663 310.6064 310.7465 310.8866 311.0267 311.1668 311.3068 311.4469 311.5869 311.7269 311.8670 312.0070 312.1470 312.2870 312.4269 312.5669 312.7068 312.8468 312.9867 313.1266 313.2665 313.4064 313.5463 313.6862 313.8261 313.9659 314.1058 314.2456 314.3854 314.5252 314.6650 314.8048 314.9446 315.0843 315.2241 315.3638 315.5035 315.6433 315.7830 315.9227 316.0623 316.2020 316.3417 316.4813 316.6210 316.7606 316.9002 317.0398 317.1794 317.3190 317.4585 317.5981 317.7377 317.8772 318.0167 318.1562 318.2957 318.4352 318.5747 318.7142 318.8536 318.9931 319.1325 319.2719 319.4113 319.5507 319.6901 319.8295 319.9689 320.1082 320.2476 320.3869 320.5262 320.6655 320.8048 320.9441 321.0834 321.2227 321.3619 321.5011 321.6404 321.7796 321.9188 322.0580 322.1972 322.3363 322.4755 322.6147 322.7538 322.8929 323.0320 323.1711 323.3102 323.4493 323.5884 323.7274 323.8665 324.0055 324.1445 324.2835 324.4225 324.5615 324.7005 324.8395 324.9784 --------------------------------------------------------------------------------------- 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 --------------------------------------------------------------------------------------- SS 20240827T231455.1Z 9005.968693 682 1 29.53 2 71.73 248.15 78.31 321.47 0.00 1 0.00 1 0 25 9.991e-02 9.072e-03 8.799e-02 5.689e-03 4.273517e-01 2.984928e-03 6.853678e-03 -6.000000e+00 5.950122e-02 230.84 -2.00 4.87 -2.00 319.68 0.00e+00 1.575045e-03 8.323702e-04 6.214490e-04 -6.000000e+00 2.525329e-03 274.63 -2.00 20.00 -2.00 319.12 0.00e+00 3.148 0.001 302.00 328.00 3 5.0221e+00 8.4556e-03 4.4793e-02 -6.0000e+00 1.4918e-01 3.9223e-02 9.8940e-03 3.1354e-02 -6.0000e+00 1.6178e-01 -6.7457e-03 8.0206e-03 1.5598e-02 -6.0000e+00 9.5696e-02 -6.1415e-04 4.1637e-03 4.5457e-03 -6.0000e+00 3.9653e-02 8.9339e-05 -1.1432e-03 1.7842e-04 5.7755e-05 -6.0000e+00 2.9847e-03 -2.2576e-02 -7.6149e-05 11 8 0 10 0 0 99.99 26.21 0.34 -0.02258 -0.03117 10 10 1 5 0 2952.720 34.50 20.00 26.21 16.48 4.1 901.19 5559 11966 -25044 -26153 -48739 -29446 26010 -51758 -23952 -10216 -41551 -19489 -18809 -8600 1567 7 1918 -24679 -13874 -25698 -4159 7935 -3149 10314 -3495 9211 4033 -9944 -2873 -2676 -6286 -2283 1607 -8049 1439 2458 104 -4800 1664 2316 3347 -96 -1959 -306 1628 3112 3814 -74 604 3834 5274 -678 2382 4794 -1504 4541 448 -2857 972 -610 794 216 2816 3335 870 -1886 -768 -2404 162 1395 1103 643 158 1657 -666 -2422 -1228 -2104 -605 -1805 1420 -1323 -1114 -981 -1301 -1036 -797 395 1083 562 1320 -109 -1293 218 -599 -773 393 863 1739 -419 -1258 -1676 -1840 -194 -632 -610 -602 -1073 989 608 308 712 764 248 176 66 -737 -493 86 184 163 585 -94 489 776 143 -568 146 830 331 -338 -12 -812 -226 -111 226 23 126 155 183 412 -305 -957 78 175 -543 -541 -1180 -594 361 -1752 -678 -266 -1544 -649 -741 -367 71 0 106 -1917 -1024 -2224 -295 506 -236 721 -297 715 329 -894 -236 -232 -631 -247 184 -1036 163 282 14 -783 306 491 771 -24 -522 -82 429 815 992 -20 166 1068 1568 -233 851 1782 -621 1816 190 -1244 401 -256 343 103 1431 1808 485 -1033 -403 -1303 93 891 768 467 114 1120 -424 -1421 -661 -1137 -350 -1206 1044 -1113 -916 -854 -1216 -1028 -827 416 1128 564 1220 -95 -1183 198 -538 -782 443 1078 2274 -552 -1571 -1937 -2013 -214 -747 -761 -792 -1503 1452 969 482 1138 1192 402 266 95 -1077 -750 138 309 275 968 -152 753 1136 202 -781 204 1247 542 -597 -19 -1430 -415 -215 458 48 267 330 375 808 -579 -1787 SS 20240828T000143.2Z 9006.001195 708 1 29.84 2 75.74 259.43 80.51 331.31 0.00 1 0.00 1 0 17 2.149e-01 8.123e-03 9.851e-02 3.766e-03 5.295223e-01 2.003373e-03 8.358147e-03 -6.000000e+00 1.279987e-01 230.84 -2.00 4.87 -2.00 320.31 0.00e+00 1.494941e-03 6.960213e-04 9.271077e-04 -6.000000e+00 5.431802e-03 274.62 -2.00 20.00 -2.00 319.78 0.00e+00 3.971 0.002 302.00 328.00 3 3.5798e+00 5.9454e-03 5.6216e-02 -6.0000e+00 3.2091e-01 4.5605e-02 7.2778e-03 3.9390e-02 -6.0000e+00 3.4801e-01 -3.9956e-02 6.7061e-03 1.9919e-02 -6.0000e+00 2.0585e-01 9.2351e-03 3.4025e-03 5.9132e-03 -6.0000e+00 8.5306e-02 1.5531e-04 -8.1326e-04 1.1466e-04 7.6556e-05 -6.0000e+00 6.4199e-03 -2.2057e-02 -2.4558e-05 11 9 0 11 8 0 99.91 26.20 0.54 -0.02206 -0.02817 40 40 1 5 0 745.850 34.50 19.99 26.20 16.60 4.1 902.10 -33485 -80312 -121091 -31310 -51346 -49089 -88621 -78310 -102508 -45437 -39153 14190 -23746 -60930 -10851 -5122 -1646 -8295 -7973 -14851 -18007 7250 -2695 -2083 -6154 2345 2682 -16999 -13746 -9788 -337 -3291 -6159 -2476 -9809 -3884 -8094 919 5682 2121 4677 -1662 1480 -2682 -1734 1650 1474 791 -474 1553 1069 171 2899 3193 2605 1794 2134 -1454 1315 765 2793 773 4941 2384 3179 -629 630 -932 1248 255 541 1663 2122 1516 -832 -1395 -2183 -4407 -2215 16 -1532 -909 -1646 -1434 -1191 -381 455 403 1519 387 404 37 -365 -815 -288 -100 440 782 207 206 -757 -1244 -1347 -776 -601 -942 -908 -739 -193 492 609 796 -31 134 -347 -796 -487 339 180 565 400 149 588 615 539 -124 219 -24 225 702 -341 116 -174 -95 -141 30 163 90 127 -176 17 -99 -706 -268 -1153 -2709 -272 -514 -492 -1450 -1438 -2673 -718 -618 151 -453 -2081 -271 -139 -48 -280 -287 -600 -767 245 -107 -89 -292 107 122 -911 -712 -528 -19 -220 -473 -189 -785 -302 -740 91 653 296 704 -284 255 -493 -320 299 271 149 -94 321 244 43 776 917 791 569 689 -484 418 245 917 284 1942 1045 1407 -280 273 -424 611 142 298 941 1178 882 -455 -695 -1029 -2151 -1170 10 -972 -644 -1271 -1176 -1043 -352 437 397 1474 364 354 30 -289 -662 -256 -101 503 917 259 255 -889 -1468 -1495 -871 -719 -1096 -1117 -968 -272 756 1009 1259 -50 219 -534 -1181 -725 523 294 958 679 247 942 946 793 -177 303 -35 354 1207 -591 212 -332 -192 -301 63 347 196 275 -369 36 -203 -1421