File name: Pandora83s1_BondvilleIL_20260106_L2Fit_fout2c8d20241002p1-8.txt File generation date: 20260107T061113.6Z Data description: Level 2 spectral fitting results file Data file version: fout2c8p1-8 Local principal investigator: Kevin Mishoe Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 83 Spectrometer number: 1 Processing software version used: BlickP v1.8.75 Instrument operation file used: Pandora83_OF_v4d20231115.txt Instrument calibration file used: Pandora83s1_CF_v8d20241002.txt Level 1 file used: Pandora83s1_BondvilleIL_20260106_L1_smca1c8d20241002p1-8.txt Full location name: Bondville, Illinois EPA Castnet Site Short location name: BondvilleIL Country of location: United States Location latitude [deg]: 40.0520 Location longitude [deg]: -88.3725 Location altitude [m]: 213 Local noon date: 20260106 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: 199 341 Nominal wavelengths inside fitting window [nm]: 305.0376 305.1782 305.3189 305.4595 305.6001 305.7407 305.8813 306.0219 306.1625 306.3031 306.4436 306.5841 306.7247 306.8652 307.0057 307.1462 307.2867 307.4271 307.5676 307.7081 307.8485 307.9889 308.1293 308.2697 308.4101 308.5505 308.6909 308.8312 308.9716 309.1119 309.2522 309.3925 309.5328 309.6731 309.8134 309.9537 310.0939 310.2342 310.3744 310.5146 310.6548 310.7950 310.9352 311.0754 311.2155 311.3557 311.4958 311.6359 311.7761 311.9162 312.0563 312.1963 312.3364 312.4765 312.6165 312.7565 312.8966 313.0366 313.1766 313.3166 313.4565 313.5965 313.7365 313.8764 314.0163 314.1563 314.2962 314.4361 314.5760 314.7158 314.8557 314.9955 315.1354 315.2752 315.4150 315.5548 315.6946 315.8344 315.9742 316.1139 316.2537 316.3934 316.5331 316.6728 316.8125 316.9522 317.0919 317.2316 317.3712 317.5109 317.6505 317.7901 317.9297 318.0693 318.2089 318.3485 318.4880 318.6276 318.7671 318.9066 319.0462 319.1857 319.3251 319.4646 319.6041 319.7435 319.8830 320.0224 320.1618 320.3013 320.4407 320.5800 320.7194 320.8588 320.9981 321.1375 321.2768 321.4161 321.5554 321.6947 321.8340 321.9733 322.1125 322.2518 322.3910 322.5302 322.6694 322.8086 322.9478 323.0870 323.2262 323.3653 323.5045 323.6436 323.7827 323.9218 324.0609 324.2000 324.3391 324.4781 324.6172 324.7562 324.8952 --------------------------------------------------------------------------------------- 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 20260106T144131.3Z 9502.612168 315 1 31.67 2 77.64 134.01 80.39 278.04 0.00 1 0.00 1 0 33 7.398e-01 6.086e-02 2.488e-01 8.349e-03 6.239406e-01 4.431947e-03 7.823001e-03 -6.000000e+00 4.237377e-01 223.49 -2.00 3.49 -2.00 320.54 0.00e+00 -3.073655e-02 1.598988e-03 7.950263e-03 -6.000000e+00 2.022830e-02 275.34 -2.00 20.00 -2.00 320.01 0.00e+00 4.540 0.002 302.00 328.00 3 3.8876e+00 1.3286e-02 8.0289e-02 -6.0000e+00 1.0488e+00 3.6276e-01 1.6499e-02 9.5613e-02 -6.0000e+00 1.1418e+00 -6.4711e-01 1.4786e-02 1.8612e-02 -6.0000e+00 6.7462e-01 2.8997e-01 7.5474e-03 3.5436e-02 -6.0000e+00 2.9214e-01 7.0720e-05 -1.3221e-03 2.4285e-04 2.2990e-04 -6.0000e+00 2.0729e-02 -1.4047e-02 0.0000e+00 12 9 9 12 9 1 99.93 24.71 -0.63 -0.01405 -0.02398 7 2 1 5 0 3957.590 33.50 20.03 24.71 13.17 2.2 1083.94 -54265 -47150 900000 279918 900000 -40808 -13829 900000 156214 900000 260834 900000 355073 10572 900000 118983 40599 21480 46662 17527 4664 263677 97065 46614 46218 248074 148441 140511 178551 270195 900000 89676 92130 44780 60635 15439 40425 21540 76024 64734 113357 74156 52614 -89915 35389 50837 88415 29496 28468 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-2785 -815 -8143 -5867 -8319 -4914 -1180 -5207 -3434 -1842 -4602 -2877 -1536 -1971 -621 1867 2029 500 522 4375 4611 2862 2056 -268 745 1555 3887 478 4029 -1176 1198 9325 -3392 1216 -496 1984 1337 -622 1498 639 2264 -330 -2983 0 1322 -3478 -2648 -2456 SS 20260106T200612.6Z 9502.837646 519 1 12.04 2 69.10 211.31 127.43 342.21 0.00 1 0.00 1 0 25 5.377e-02 7.670e-03 2.780e-02 3.496e-03 4.074842e-01 1.753780e-03 4.881943e-03 -6.000000e+00 3.048772e-02 223.50 -2.00 3.49 -2.00 318.57 0.00e+00 2.240745e-03 3.616657e-04 2.722048e-04 -6.000000e+00 1.321645e-03 275.33 -2.00 20.00 -2.00 318.01 0.00e+00 2.776 0.000 302.00 328.00 3 3.6398e+00 4.7089e-03 3.3940e-02 -6.0000e+00 7.5227e-02 5.0209e-02 5.3739e-03 2.0645e-02 -6.0000e+00 8.1790e-02 -1.6577e-02 3.8411e-03 1.0515e-02 -6.0000e+00 4.8663e-02 1.9653e-04 2.0559e-03 3.6268e-03 -6.0000e+00 2.0926e-02 5.4601e-04 -5.6904e-04 9.8310e-05 3.6684e-05 -6.0000e+00 1.4555e-03 -1.2195e-02 0.0000e+00 12 9 1 12 1 1 99.99 24.76 0.32 -0.01219 -0.01647 19 10 1 5 0 601.710 33.75 19.99 24.76 14.72 2.1 1099.38 -28366 -13429 -5957 889 -25490 -13292 -26375 5972 -17788 8456 -16004 -1822 7616 -6316 11723 5208 -6459 -6484 -220 -7630 -5695 563 -993 -2428 -1785 2690 821 -1181 245 8339 2886 4426 1043 2507 -2070 -2189 -2077 -2683 -3345 -1337 386 -1365 -1117 -1498 -1260 -320 4000 1969 -571 243 677 -43 822 1528 1875 1336 -1112 919 -498 -1457 3322 2116 2950 1016 1848 -163 -522 1196 1023 772 860 -2 -479 518 39 -414 794 -1669 -2168 -242 -929 -1677 -660 -2733 -1133 -202 153 -98 502 -139 841 185 79 1193 198 -754 249 52 -21 -1116 -346 -68 -982 -759 -284 -1202 -1322 101 315 405 836 621 200 13 805 163 977 396 -114 -57 -325 396 -449 7 -236 49 999 238 277 95 507 362 136 -89 -234 25 -59 16 207 -165 -428 -562 -93 -1160 -549 -242 33 -1121 -485 -1133 208 -885 349 -862 -89 389 -450 839 462 -707 -758 -26 -1007 -761 71 -128 -335 -262 398 126 -179 35 1092 432 741 203 517 -435 -441 -439 -659 -908 -424 136 -524 -447 -617 -522 -132 1592 798 -238 102 301 -19 395 778 999 737 -645 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