File name: Pandora243s1_Toronto-CNTower_20260117_L2Fit_fout2c7d20250508p1-8.txt
File generation date: 20260118T054550.2Z
Data description: Level 2 spectral fitting results file
Data file version: fout2c7p1-8
Local principal investigator: Vitali Fioletov
Network principal investigator: Alexander Cede
Instrument type: Pandora
Instrument number: 243
Spectrometer number: 1
Processing software version used: BlickP v1.8.75
Instrument operation file used: Pandora243_OF_v3d20230125.txt
Instrument calibration file used: Pandora243s1_CF_v7d20250508.txt
Level 1 file used: Pandora243s1_Toronto-CNTower_20260117_L1_smca1c7d20250508p1-8.txt
Full location name: CN Tower Observation Pod Roof, 290 Bremner Blvd, Toronto, ON M5V 3L9
Short location name: Toronto-CNTower
Country of location: Canada
Location latitude [deg]: 43.6426
Location longitude [deg]: -79.3871
Location altitude [m]: 330
Local noon date: 20260117
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: 197 339
Nominal wavelengths inside fitting window [nm]: 305.1143 305.2548 305.3953 305.5359 305.6764 305.8169 305.9573 306.0978 306.2383 306.3787 306.5192 306.6596 306.8000 306.9404 307.0808 307.2212 307.3615 307.5019 307.6422 307.7826 307.9229 308.0632 308.2035 308.3438 308.4841 308.6243 308.7646 308.9048 309.0451 309.1853 309.3255 309.4657 309.6059 309.7461 309.8863 310.0264 310.1666 310.3067 310.4468 310.5869 310.7270 310.8671 311.0072 311.1472 311.2873 311.4273 311.5674 311.7074 311.8474 311.9874 312.1274 312.2674 312.4073 312.5473 312.6872 312.8271 312.9671 313.1070 313.2469 313.3868 313.5266 313.6665 313.8063 313.9462 314.0860 314.2258 314.3656 314.5054 314.6452 314.7850 314.9247 315.0645 315.2042 315.3439 315.4837 315.6234 315.7630 315.9027 316.0424 316.1820 316.3217 316.4613 316.6010 316.7406 316.8802 317.0197 317.1593 317.2989 317.4384 317.5780 317.7175 317.8570 317.9965 318.1360 318.2755 318.4150 318.5545 318.6939 318.8334 318.9728 319.1122 319.2516 319.3910 319.5304 319.6698 319.8091 319.9485 320.0878 320.2271 320.3664 320.5057 320.6450 320.7843 320.9236 321.0628 321.2021 321.3413 321.4805 321.6197 321.7589 321.8981 322.0373 322.1765 322.3156 322.4547 322.5939 322.7330 322.8721 323.0112 323.1503 323.2893 323.4284 323.5675 323.7065 323.8455 323.9845 324.1235 324.2625 324.4015 324.5405 324.6794 324.8184 324.9573
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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 20260117T204750.4Z 9513.866556 317 1 7.84 2 78.91 226.96 90.57 231.58 0.00 1 0.00 1 0 25 6.180e-01 1.784e-02 2.950e-01 8.252e-03 8.613965e-01 4.373357e-03 9.708708e-03 -6.000000e+00 3.468922e-01 223.45 -2.00 3.56 -2.00 321.29 0.00e+00 8.852695e-03 1.955284e-03 9.595224e-04 -6.000000e+00 1.532718e-02 271.02 -2.00 20.00 -2.00 320.87 0.00e+00 5.020 0.002 302.00 328.00 3 2.6144e+00 1.3720e-02 6.6793e-02 -6.0000e+00 8.5642e-01 4.3253e-01 1.9418e-02 4.8295e-02 -6.0000e+00 9.3591e-01 -5.6085e-01 2.1414e-02 2.5776e-02 -6.0000e+00 5.5360e-01 2.2606e-01 1.0325e-02 1.2558e-02 -6.0000e+00 2.3476e-01 1.1612e-04 -1.4968e-03 2.0187e-04 1.2342e-04 -6.0000e+00 1.6571e-02 -5.8081e-04 0.0000e+00 12 9 9 12 1 1 99.23 26.11 0.87 -0.00058 -0.01183 8 34 1 5 0 870.810 34.75 20.00 26.11 5.72 3.7 809.75 -192761 -242153 -208898 -128921 -149044 900000 -289685 -182655 -175364 -127534 -231224 900000 -84604 -53931 -84408 -28534 5646 -76702 -46465 -89180 -68974 -5099 11267 218339 -84753 -35241 -72104 -21745 24645 64193 7848 -29028 12654 -600 -2301 18627 -26356 4639 53191 -5082 7579 18025 15343 18759 8838 24086 12246 3897 7637 25486 15993 8784 24127 13013 13032 19157 15609 -2474 16483 -683 -1459 5499 4518 10663 13462 5831 7014 6173 4312 3217 3262 3866 4806 5796 -338 -435 -3743 -2674 953 -1797 919 -235 630 -591 -2406 -1421 1070 -837 -590 -662 -1241 1424 -2086 -554 -1750 -981 -1105 -1398 -640 -314 -860 -885 -1612 -1002 -1313 -2361 -1266 -2175 233 -648 694 387 302 -275 222 -609 -731 -461 -31 355 1019 879 872 2492 464 1450 1314 623 1158 855 93 145 498 149 66 3 -561 -17 66 269 -309 -872 -1458 -2397 -5667 -3667 -1037 -1199 900000 -9746 -2271 -2180 -1026 -5581 900000 -885 -564 -1562 -367 59 -2036 -972 -2942 -1831 -70 136 1757 -2932 -765 -2262 -402 297 620 170 -1121 377 -21 -78 509 -1251 190 1626 -327 476 1088 1000 1207 640 1550 926 342 694 2132 1673 1109 2873 1884 1981 2820 2411 -446 2347 -113 -255 1009 978 2496 3249 1511 1834 1723 1377 1087 1198 1445 1715 2070 -115 -132 -1123 -846 342 -735 434 -130 377 -378 -1664 -1028 785 -638 -444 -475 -832 879 -1321 -371 -1377 -834 -1111 -1641 -751 -366 -1012 -921 -1508 -928 -1305 -2491 -1400 -2641 286 -922 1026 617 489 -438 337 -898 -1093 -719 -51 591 1630 1329 1361 3687 674 2022 1789 912 1821 1555 177 300 1090 327 154 8 -1327 -40 164 633 -674 -1891 -3040
SS 20260117T205204.8Z 9513.869500 320 1 6.05 2 79.48 227.79 91.15 232.29 0.00 1 0.00 1 0 25 7.115e-01 1.496e-02 2.936e-01 7.361e-03 8.991408e-01 3.903877e-03 9.982607e-03 -6.000000e+00 3.993884e-01 223.45 -2.00 3.56 -2.00 321.32 0.00e+00 1.144408e-03 1.786378e-03 1.488459e-03 -6.000000e+00 1.720015e-02 271.02 -2.00 20.00 -2.00 320.91 0.00e+00 5.266 0.003 302.00 328.00 3 2.0618e+00 1.2455e-02 6.9430e-02 -6.0000e+00 9.8591e-01 3.0238e-01 1.8582e-02 4.9088e-02 -6.0000e+00 1.0773e+00 -4.0672e-01 2.1402e-02 2.7603e-02 -6.0000e+00 6.3731e-01 1.5913e-01 1.0197e-02 9.2150e-03 -6.0000e+00 2.6993e-01 1.6554e-04 -8.7594e-04 1.7792e-04 1.1329e-04 -6.0000e+00 1.9069e-02 -1.7199e-03 0.0000e+00 12 9 9 12 1 1 96.50 26.12 0.61 -0.00172 -0.00830 10 55 1 5 0 549.220 34.75 20.00 26.12 5.85 3.7 810.62 -120209 -238207 -256769 -163338 -240514 900000 -262426 -220046 -193221 -291948 -287990 -186195 -106880 -132600 -95582 97510 -49523 -61628 -96677 -39263 -77719 -68968 -60382 -72397 -45270 -43877 -16033 -65285 -44790 -28264 -11527 -29921 -10986 10533 -23319 1162 -48468 -5042 -8892 5057 8401 19650 27058 6568 9945 21461 25637 10694 1092 7716 4412 17881 8914 6880 14557 8161 11719 6453 2012 6691 -1893 7334 5091 11989 5281 8007 -165 8650 1678 9480 5340 5912 -173 3687 517 1410 -1949 -1860 -232 -1885 -411 731 -4229 11 -1654 433 -2431 1955 -1025 -145 -1156 -331 -526 -1362 14 -1561 -202 164 -1148 -511 -1205 -541 -977 -705 -1063 -1058 -1251 -883 -470 -466 220 -308 -124 280 473 -612 653 -291 339 608 974 402 802 967 891 831 434 795 562 209 108 89 263 -182 -6 -211 122 95 -60 -223 -523 -257 -629 -863 -2331 -3183 -1172 -2197 900000 -3425 -2154 -1639 -7239 -7517 -2406 -844 -1808 -1166 700 -533 -840 -2012 -479 -1395 -1139 -997 -1507 -780 -787 -219 -1406 -804 -507 -223 -859 -308 249 -736 29 -2261 -185 -421 250 452 1015 1359 410 607 1202 1435 745 91 670 456 1835 1113 968 2027 1271 1809 1028 319 984 -315 1253 1041 2642 1323 1954 -45 2322 498 3013 1930 2184 -65 1237 160 424 -585 -597 -79 -792 -202 413 -2534 7 -1091 296 -1774 1388 -741 -99 -741 -219 -348 -901 10 -1435 -200 187 -1347 -591 -1403 -552 -971 -698 -1044 -1091 -1372 -1052 -583 -668 331 -504 -207 456 735 -929 992 -467 566 1033 1589 622 1182 1471 1308 1183 606 1187 918 372 214 180 569 -401 -14 -521 287 227 -149 -524 -1137 -545 -1284