File name: Pandora187s1_PittsburghPA_20241229_L2Fit_fout2c5d20230706p1-8.txt File generation date: 20241230T052618.4Z Data description: Level 2 spectral fitting results file Data file version: fout2c5p1-8 Local principal investigator: Lukas Valin Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 187 Spectrometer number: 1 Processing software version used: BlickP v1.8.60 Instrument operation file used: Pandora187_OF_v4d20210517.txt Instrument calibration file used: Pandora187s1_CF_v5d20230706.txt Level 1 file used: Pandora187s1_PittsburghPA_20241229_L1_smca1c5d20230706p1-8.txt Full location name: Pittsburgh, PA - Lawrenceville ACHD (USEPA AQS ID 42-003-0008) Short location name: PittsburghPA Country of location: United States Location latitude [deg]: 40.4655 Location longitude [deg]: -79.9608 Location altitude [m]: 265 Local noon date: 20241229 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: None First and last pixel inside fitting window: 194 335 Nominal wavelengths inside fitting window [nm]: 305.0595 305.2010 305.3424 305.4838 305.6252 305.7666 305.9080 306.0494 306.1908 306.3321 306.4735 306.6148 306.7561 306.8974 307.0387 307.1800 307.3213 307.4626 307.6038 307.7451 307.8863 308.0275 308.1687 308.3099 308.4511 308.5923 308.7335 308.8746 309.0158 309.1569 309.2980 309.4391 309.5802 309.7213 309.8624 310.0035 310.1445 310.2856 310.4266 310.5676 310.7086 310.8496 310.9906 311.1316 311.2726 311.4135 311.5545 311.6954 311.8363 311.9772 312.1181 312.2590 312.3999 312.5408 312.6816 312.8225 312.9633 313.1041 313.2449 313.3857 313.5265 313.6673 313.8080 313.9488 314.0895 314.2303 314.3710 314.5117 314.6524 314.7931 314.9338 315.0744 315.2151 315.3557 315.4963 315.6370 315.7776 315.9182 316.0587 316.1993 316.3399 316.4804 316.6210 316.7615 316.9020 317.0425 317.1830 317.3235 317.4640 317.6044 317.7449 317.8853 318.0257 318.1662 318.3066 318.4470 318.5873 318.7277 318.8681 319.0084 319.1488 319.2891 319.4294 319.5697 319.7100 319.8503 319.9905 320.1308 320.2710 320.4113 320.5515 320.6917 320.8319 320.9721 321.1123 321.2524 321.3926 321.5327 321.6728 321.8130 321.9531 322.0932 322.2333 322.3733 322.5134 322.6534 322.7935 322.9335 323.0735 323.2135 323.3535 323.4935 323.6335 323.7734 323.9134 324.0533 324.1932 324.3332 324.4731 324.6129 324.7528 324.8927 --------------------------------------------------------------------------------------- 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 100-241: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 242-383: 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 20241229T180827.2Z 9129.755870 225 1 42.00 2 64.53 191.77 74.15 204.89 0.00 1 0.00 1 0 17 1.710e-02 6.902e-03 1.008e-02 2.251e-03 3.030784e-01 1.129650e-03 3.690806e-03 -6.000000e+00 9.788919e-03 223.21 -2.00 3.49 -2.00 317.91 0.00e+00 6.630780e-04 1.908322e-04 1.240488e-04 -6.000000e+00 4.238383e-04 275.09 -2.00 20.00 -2.00 317.34 0.00e+00 2.311 0.000 302.00 328.00 3 4.1889e+00 2.9828e-03 2.7055e-02 -6.0000e+00 2.4135e-02 2.0550e-02 3.3710e-03 1.5415e-02 -6.0000e+00 2.6233e-02 1.4843e-03 2.1721e-03 7.7062e-03 -6.0000e+00 1.5608e-02 -6.7628e-03 1.1255e-03 2.3306e-03 -6.0000e+00 6.7162e-03 5.8956e-04 -8.7542e-05 6.6255e-05 2.6506e-05 -6.0000e+00 4.7541e-04 -1.7309e-02 -6.0400e-06 12 9 1 12 1 1 99.28 19.46 0.31 -0.01731 -0.01797 34 12 1 5 0 1199.800 22.90 15.00 19.46 24.46 31.8 1029.85 568 -1955 -16 -5338 -8522 -5229 -3282 -2821 -978 -4153 -7883 -3369 -4106 435 -2537 -380 -1284 2057 -980 1541 898 -201 -729 824 394 -178 -653 -598 -1205 -844 1041 567 4524 -264 -3740 -2328 -1827 -2506 -1246 -1016 -1193 -782 -513 243 788 -259 181 -118 -1334 110 998 165 693 1263 1232 1300 1599 867 778 598 1030 1526 2287 1645 493 -885 -405 -633 202 441 324 478 485 611 279 197 -365 -966 -606 -905 -998 -1503 -2258 -1991 -964 -516 -774 424 616 812 440 176 -291 161 -192 -198 639 673 160 -223 -452 -1097 204 79 -1014 -888 -660 -305 426 354 67 459 575 40 17 88 3 -130 -128 -306 -619 199 189 238 155 -317 652 1448 1106 728 558 276 360 372 117 -678 -108 -238 -389 -170 -242 -662 38 -150 -1 -419 -619 -350 -227 -217 -82 -385 -761 -322 -447 53 -366 -60 -217 353 -181 289 173 -39 -145 171 87 -41 -152 -132 -251 -175 227 136 1135 -72 -994 -600 -512 -827 -488 -422 -545 -373 -252 120 386 -129 88 -57 -641 53 507 91 404 773 780 841 1049 569 501 384 684 1089 1768 1248 375 -692 -296 -461 157 356 284 434 436 524 221 153 -261 -676 -454 -771 -878 -1465 -2361 -2186 -1037 -591 -932 517 744 931 506 186 -286 157 -204 -234 771 895 223 -302 -570 -1280 246 92 -1295 -1191 -926 -448 613 546 109 740 885 57 24 121 5 -191 -186 -469 -958 299 275 356 221 -432 851 1948 1613 1059 852 433 581 630 197 -1196 -194 -434 -705 -296 -436 -1152 SS 20241229T201255.6Z 9129.842310 287 1 45.74 2 74.98 220.17 87.79 227.80 0.00 1 0.00 1 0 17 2.116e-01 1.611e-02 2.856e-01 1.370e-02 4.807812e-01 7.084875e-03 5.745891e-03 -6.000000e+00 1.214047e-01 223.21 -2.00 3.49 -2.00 320.35 0.00e+00 1.264634e-03 2.518739e-03 1.354527e-03 -6.000000e+00 5.306822e-03 275.09 -2.00 20.00 -2.00 319.85 0.00e+00 3.785 0.001 302.00 328.00 3 4.7265e+00 2.1100e-02 4.4598e-02 -6.0000e+00 3.0002e-01 6.6300e-02 2.6226e-02 2.6838e-02 -6.0000e+00 3.2646e-01 3.9310e-04 2.4389e-02 1.3079e-02 -6.0000e+00 1.9348e-01 -1.1242e-02 1.2427e-02 4.0021e-03 -6.0000e+00 8.2951e-02 6.7167e-05 -1.1433e-03 4.1083e-04 5.0261e-05 -6.0000e+00 5.9182e-03 -1.3909e-02 -1.8641e-04 12 8 8 10 0 0 99.99 19.47 0.18 -0.01391 -0.02250 65 20 1 5 0 703.590 22.90 15.00 19.47 20.37 32.0 1003.69 61524 6811 -55715 -64410 -46532 -97024 20107 -72324 900000 -77858 -31708 -76423 39057 -26105 -44548 12793 -5043 30847 -27476 15017 6281 -1134 -46889 16331 -9704 -13367 -27780 3193 -15718 8434 -24985 -5574 71634 34492 -13295 -5098 15734 -3069 -8774 4504 -3614 -7295 7584 5873 4959 2275 10544 -843 1908 6276 5458 -2035 -187 2427 6059 4449 1919 5296 3500 4238 -844 5791 5800 3339 2127 -2865 1147 -485 664 2413 2931 -1599 1487 -2672 786 -1862 -454 -3341 -18261 -1434 -2705 479 -1781 -1257 2095 447 -5213 1609 1836 2942 609 1963 917 2793 20 -298 -1013 86 170 740 -15 -536 -197 700 -2048 -1317 -435 -566 2025 3 1069 747 197 -414 -122 -653 4 -556 -135 -502 -1364 211 -870 1338 -871 70 720 2896 252 575 -286 193 -230 631 331 -292 395 -163 -165 -579 264 -676 822 91 -851 -1045 -622 -1944 269 -1380 900000 -2080 -554 -2278 522 -698 -1740 329 -171 793 -1355 509 239 -47 -3180 638 -529 -797 -1941 158 -905 399 -1874 -395 2650 1950 -1161 -409 1132 -315 -1163 620 -602 -1342 1255 1008 866 414 1777 -161 363 1200 1150 -508 -50 673 1700 1312 593 1573 1032 1233 -269 1892 2116 1362 892 -1204 486 -213 294 1292 1569 -927 822 -1455 409 -896 -201 -1529 -10755 -828 -1813 348 -1313 -974 1682 388 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