File name: Pandora104s1_Downsview_20220307_L2Fit_fout2c22d20211217p1-8.txt File generation date: 20241127T130525.7Z Data description: Level 2 spectral fitting results file Data file version: fout2c22p1-8 Local principal investigator: Vitali Fioletov Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 104 Spectrometer number: 1 Processing software version used: BlickP v1.8.60 Instrument operation file used: Pandora104_OF_v10d20171009.txt Instrument calibration file used: Pandora104s1_CF_v22d20211217.txt Level 1 file used: Pandora104s1_Downsview_20220307_L1_smca1c22d20211217p1-8.txt Full location name: Environment Canada HQ - Downsview Short location name: Downsview Country of location: Canada Location latitude [deg]: 43.7810 Location longitude [deg]: -79.4680 Location altitude [m]: 187 Local noon date: 20220307 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: Modification of session 16 for SO2 "based on session 14 for vp 20211217" First and last pixel inside fitting window: 208 350 Nominal wavelengths inside fitting window [nm]: 305.0351 305.1757 305.3162 305.4567 305.5973 305.7378 305.8783 306.0188 306.1593 306.2997 306.4402 306.5806 306.7211 306.8615 307.0019 307.1423 307.2827 307.4231 307.5634 307.7038 307.8441 307.9845 308.1248 308.2651 308.4054 308.5457 308.6860 308.8262 308.9665 309.1067 309.2470 309.3872 309.5274 309.6676 309.8078 309.9480 310.0881 310.2283 310.3684 310.5086 310.6487 310.7888 310.9289 311.0690 311.2091 311.3491 311.4892 311.6292 311.7693 311.9093 312.0493 312.1893 312.3293 312.4693 312.6092 312.7492 312.8891 313.0290 313.1690 313.3089 313.4488 313.5886 313.7285 313.8684 314.0082 314.1481 314.2879 314.4277 314.5675 314.7073 314.8471 314.9869 315.1266 315.2664 315.4061 315.5458 315.6855 315.8252 315.9649 316.1046 316.2443 316.3839 316.5236 316.6632 316.8028 316.9424 317.0820 317.2216 317.3612 317.5008 317.6403 317.7799 317.9194 318.0589 318.1984 318.3379 318.4774 318.6169 318.7563 318.8958 319.0352 319.1747 319.3141 319.4535 319.5929 319.7322 319.8716 320.0110 320.1503 320.2897 320.4290 320.5683 320.7076 320.8469 320.9862 321.1254 321.2647 321.4039 321.5431 321.6824 321.8216 321.9608 322.1000 322.2391 322.3783 322.5174 322.6566 322.7957 322.9348 323.0739 323.2130 323.3521 323.4912 323.6302 323.7693 323.9083 324.0473 324.1863 324.3253 324.4643 324.6033 324.7422 324.8812 --------------------------------------------------------------------------------------- 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 Columns 97-239: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 240-382: 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 20220307T135453.2Z 8101.579782 98 1 50.17 2 68.55 120.66 92.98 65.80 0.00 1 0.00 1 0 17 3.579e-02 1.098e-02 3.819e-02 4.094e-03 3.728579e-01 2.133316e-03 4.602672e-03 -6.000000e+00 2.092080e-02 225.44 -2.00 3.57 -2.00 319.27 0.00e+00 1.660840e-03 5.147163e-04 1.191275e-03 -6.000000e+00 8.942632e-04 273.30 -2.00 20.00 -2.00 318.74 0.00e+00 2.710 0.000 302.00 328.00 3 4.8545e+00 5.8673e-03 3.2984e-02 -6.0000e+00 5.1883e-02 1.0184e-01 6.7520e-03 1.9902e-02 -6.0000e+00 5.6320e-02 -4.1572e-02 5.0613e-03 1.0484e-02 -6.0000e+00 3.3434e-02 1.0487e-02 2.6638e-03 3.4606e-03 -6.0000e+00 1.4182e-02 1.7739e-04 2.0680e-04 1.2624e-04 4.0483e-05 -6.0000e+00 9.8939e-04 6.4916e-03 0.0000e+00 12 8 8 10 0 0 99.99 21.98 0.28 0.00649 0.00805 65 13 1 5 0 771.700 21.98 14.85 18.96 -2479 16935 -9141 -3438 -1749 8613 17575 2245 4171 -11757 -2182 -16709 4080 -6434 8354 636 -274 2196 7534 5811 3283 -502 6242 1787 3869 -2559 -3107 -3753 -1763 -1528 360 79 2069 -1092 -7832 -1554 -1994 -189 -1559 1549 -2204 249 -1699 934 -1528 73 19 -324 544 -769 1209 1035 2765 153 1657 622 128 519 1273 -426 347 512 2108 1049 1895 -1377 253 -457 292 2146 -518 1283 -793 -781 -410 -605 -2051 -1849 -1792 -863 -1268 -1785 -1805 -1075 -643 -526 248 339 -67 132 236 252 -566 -335 1071 141 389 339 1020 -455 213 -368 112 237 -312 -1214 -1564 -221 -49 1044 398 1259 -3 493 146 1038 1064 1376 356 566 -153 -8 109 220 -798 337 -664 -644 -314 -628 -978 -939 -907 130 88 229 -385 -225 -299 -875 -814 -1001 5055 -81 513 -368 -128 -58 250 488 80 163 -564 -97 -880 204 -416 550 51 -24 196 677 552 331 -52 614 194 439 -322 -397 -465 -206 -177 44 11 305 -178 -1301 -236 -324 -35 -349 394 -645 75 -545 298 -502 24 6 -106 176 -256 417 389 1093 66 731 285 60 245 586 -197 162 255 1130 615 1150 -826 140 -250 165 1357 -367 939 -595 -568 -281 -380 -1193 -1023 -1022 -549 -916 -1435 -1578 -976 -616 -537 265 376 -75 144 244 242 -509 -289 962 140 428 410 1331 -613 273 -438 124 261 -368 -1536 -2058 -302 -69 1584 644 2107 -6 791 220 1467 1469 1954 533 900 -251 -13 172 339 -1188 482 -914 -866 -447 -970 -1618 -1618 -1589 234 166 456 -792 -470 -631 -1841 -1654 -1968 9083 SS 20220307T144547.9Z 8101.615138 130 1 49.98 2 61.14 132.04 84.49 74.12 0.00 1 0.00 1 0 17 1.617e-02 6.694e-03 1.155e-02 2.640e-03 2.818597e-01 1.361166e-03 3.442876e-03 -6.000000e+00 9.450710e-03 225.44 -2.00 3.57 -2.00 318.05 0.00e+00 1.492671e-03 2.306505e-04 2.526771e-04 -6.000000e+00 4.040190e-04 273.30 -2.00 20.00 -2.00 317.49 0.00e+00 2.062 0.000 302.00 328.00 3 5.2178e+00 3.6126e-03 2.4844e-02 -6.0000e+00 2.3437e-02 9.3678e-02 4.0695e-03 1.4584e-02 -6.0000e+00 2.5444e-02 -1.9395e-02 2.5985e-03 7.3587e-03 -6.0000e+00 1.5104e-02 -3.9176e-03 1.3236e-03 2.4347e-03 -6.0000e+00 6.4060e-03 2.6210e-04 -3.5428e-05 8.0233e-05 2.5598e-05 -6.0000e+00 4.4706e-04 7.4644e-03 0.0000e+00 11 8 0 10 0 0 99.96 21.88 0.29 0.00746 0.00720 35 7 1 5 0 1427.350 21.88 14.83 18.84 3452 1888 2278 453 3005 -4129 5055 -1590 2432 422 -5602 -5440 -4359 -3298 -1925 1612 -243 -312 1869 2334 665 2601 454 1534 -781 992 -1187 -4486 398 -2077 2293 -1303 -781 -2762 -4728 -4869 -1364 -2107 -552 -966 -163 -2025 317 -291 -382 836 -161 781 -105 701 -214 1332 840 710 846 600 1270 1041 85 108 648 2021 1403 1697 1229 39 -334 17 273 1853 346 354 40 -271 319 -948 -204 -2065 -1740 -1508 -1088 -1353 -1728 -2045 -489 -284 229 321 407 541 536 710 -621 22 541 214 -3 159 19 -178 -886 -508 -727 256 -540 -730 -1517 26 -299 1027 452 551 -117 485 315 221 526 507 331 134 -203 -228 66 449 159 549 86 -2 385 -287 -540 -421 -757 238 72 852 -515 511 -223 66 -336 49 -300 249 151 189 37 214 -298 344 -129 212 40 -555 -546 -488 -421 -279 252 -41 -54 334 429 129 490 88 307 -169 219 -269 -1005 81 -421 467 -301 -193 -740 -1224 -1219 -351 -626 -192 -391 -72 -956 151 -142 -187 407 -78 371 -50 329 -105 694 465 412 507 367 789 651 53 67 404 1319 992 1276 955 29 -232 12 189 1416 291 312 35 -236 263 -727 -142 -1376 -1172 -1121 -899 -1224 -1688 -2079 -517 -320 270 391 497 648 610 752 -616 20 524 225 -4 197 26 -242 -1160 -619 -835 293 -662 -949 -2048 36 -432 1553 719 902 -189 749 456 302 701 695 474 204 -319 -358 100 671 228 762 114 -2 521 -417 -827 -665 -1211 389 123 1522 -951 954 -422 125 -618 87 -520