File name: Pandora81s1_StocktonIL_20250305_L2Fit_fout2c2d20240325p1-8.txt File generation date: 20250327T115651.7Z Data description: Level 2 spectral fitting results file Data file version: fout2c2p1-8 Local principal investigator: Alexander Cede Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 81 Spectrometer number: 1 Processing software version used: BlickP v1.8.75 Instrument operation file used: Pandora81_OF_v4d20230613.txt Instrument calibration file used: Pandora81s1_CF_v2d20240325.txt Level 1 file used: Pandora81s1_StocktonIL_20250305_L1_smca1c2d20240325p1-8.txt Full location name: CASTNET Site STK138 Short location name: StocktonIL Country of location: United States Location latitude [deg]: 42.2872 Location longitude [deg]: -90.0000 Location altitude [m]: 281 Local noon date: 20250305 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: OoB session based off of session 1 lab analysis First and last pixel inside fitting window: 197 339 Nominal wavelengths inside fitting window [nm]: 305.1283 305.2686 305.4090 305.5494 305.6897 305.8300 305.9703 306.1106 306.2509 306.3912 306.5315 306.6717 306.8120 306.9522 307.0924 307.2327 307.3729 307.5131 307.6532 307.7934 307.9336 308.0737 308.2139 308.3540 308.4941 308.6342 308.7743 308.9144 309.0544 309.1945 309.3345 309.4746 309.6146 309.7546 309.8946 310.0346 310.1746 310.3146 310.4545 310.5945 310.7344 310.8743 311.0142 311.1541 311.2940 311.4339 311.5738 311.7136 311.8535 311.9933 312.1331 312.2729 312.4128 312.5525 312.6923 312.8321 312.9718 313.1116 313.2513 313.3910 313.5307 313.6704 313.8101 313.9498 314.0895 314.2291 314.3688 314.5084 314.6480 314.7876 314.9272 315.0668 315.2064 315.3460 315.4855 315.6250 315.7646 315.9041 316.0436 316.1831 316.3226 316.4621 316.6015 316.7410 316.8804 317.0198 317.1592 317.2986 317.4380 317.5774 317.7168 317.8561 317.9955 318.1348 318.2742 318.4135 318.5528 318.6921 318.8313 318.9706 319.1099 319.2491 319.3883 319.5276 319.6668 319.8060 319.9452 320.0843 320.2235 320.3626 320.5018 320.6409 320.7800 320.9191 321.0582 321.1973 321.3364 321.4755 321.6145 321.7535 321.8926 322.0316 322.1706 322.3096 322.4486 322.5875 322.7265 322.8654 323.0044 323.1433 323.2822 323.4211 323.5600 323.6989 323.8377 323.9766 324.1154 324.2542 324.3931 324.5319 324.6707 324.8094 324.9482 --------------------------------------------------------------------------------------- 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 20250305T191950.9Z 9195.805451 289 1 54.25 2 50.48 202.32 50.07 90.51 0.00 1 0.00 1 0 17 2.313e-02 7.820e-03 5.253e-03 1.924e-03 2.691386e-01 9.599022e-04 3.263605e-03 -6.000000e+00 1.304155e-02 225.47 -2.00 3.53 -2.00 316.92 0.00e+00 6.713849e-04 1.236337e-04 5.697562e-05 -6.000000e+00 5.606653e-04 273.76 -2.00 20.00 -2.00 316.36 0.00e+00 1.568 0.000 302.00 328.00 3 5.9327e+00 2.5065e-03 2.0525e-02 -6.0000e+00 3.2329e-02 1.5857e-02 2.8165e-03 1.3712e-02 -6.0000e+00 3.5231e-02 3.0249e-03 1.6840e-03 6.8205e-03 -6.0000e+00 2.0909e-02 -3.2056e-03 8.2091e-04 2.0419e-03 -6.0000e+00 8.8765e-03 2.1766e-04 1.2786e-03 5.4342e-05 2.2524e-05 -6.0000e+00 6.2297e-04 4.8885e-03 2.1330e-04 11 9 0 11 8 0 99.99 26.25 0.26 0.00489 0.01450 20 2 1 5 0 2712.290 34.50 19.99 26.25 5.48 5.8 912.46 -1711 -2989 -5667 -9126 -8620 -5965 4219 14213 -1419 -6599 2872 510 -1330 7675 322 1716 3150 -1094 2553 -1581 255 4406 1081 -1601 -2500 -1715 1434 -950 -1053 298 -16 -1251 1111 -1391 -3447 -2966 933 -866 -2076 -403 731 834 261 -587 273 265 -104 -60 -963 273 861 1184 1023 564 -368 2132 955 -167 -2842 -377 212 2087 1191 1543 -80 -949 102 89 1153 77 408 945 280 865 723 -476 -658 -1760 -119 -442 -1133 -2370 -1058 -1678 -915 -29 -535 -241 465 265 1026 -92 20 308 1417 42 837 404 200 -388 -404 -872 -1237 20 -896 -357 -720 -652 -403 136 646 596 283 193 343 -143 181 -421 -358 467 54 592 440 -218 212 419 68 1276 240 593 772 -368 317 -19 -22 -291 -551 157 128 -397 -631 167 -415 -232 -435 -832 -1243 -1061 -723 506 1733 -220 -1095 429 84 -257 1558 80 409 766 -290 676 -450 71 1176 311 -501 -824 -576 453 -285 -300 86 -5 -427 399 -504 -1184 -1040 354 -395 -1053 -229 439 519 167 -380 175 169 -65 -37 -584 168 561 820 749 402 -271 1561 716 -125 -2138 -277 162 1697 1060 1438 -73 -805 80 70 978 69 395 937 275 806 668 -398 -503 -1320 -94 -398 -1067 -2482 -1156 -1808 -1051 -35 -685 -295 563 326 1152 -103 20 309 1509 47 1033 518 268 -507 -526 -1048 -1422 23 -1166 -455 -963 -914 -594 201 992 920 419 282 459 -182 230 -564 -515 664 78 840 646 -308 283 565 87 1648 314 828 1131 -560 458 -28 -35 -462 -900 261 212 -645 -1046 265 -647 SS 20250305T192500.5Z 9195.809034 292 1 54.88 2 50.85 203.91 49.14 91.34 0.00 1 0.00 1 0 17 2.059e-02 7.469e-03 5.860e-03 2.022e-03 2.725882e-01 1.007702e-03 3.301032e-03 -6.000000e+00 1.160960e-02 225.47 -2.00 3.53 -2.00 317.06 0.00e+00 6.287848e-04 1.351810e-04 5.953594e-05 -6.000000e+00 4.991741e-04 273.76 -2.00 20.00 -2.00 316.50 0.00e+00 1.581 0.000 302.00 328.00 3 5.9624e+00 2.6391e-03 2.0733e-02 -6.0000e+00 2.8779e-02 1.9387e-02 2.9671e-03 1.3877e-02 -6.0000e+00 3.1365e-02 1.9589e-03 1.7763e-03 6.9109e-03 -6.0000e+00 1.8615e-02 -4.1614e-03 8.7278e-04 2.0511e-03 -6.0000e+00 7.9005e-03 2.0744e-04 9.2200e-04 5.7491e-05 2.2592e-05 -6.0000e+00 5.5476e-04 6.1401e-03 1.8938e-04 11 8 0 10 0 0 100.00 26.24 0.61 0.00614 0.01307 64 6 1 5 0 857.310 34.50 20.00 26.24 5.49 6.1 913.39 -2201 -474 -3261 -7116 -7679 -5475 5270 10398 -788 -7333 3939 -2821 -1597 7040 -43 -1194 1338 -3335 1776 -971 1844 4516 -120 -406 -1642 -1017 564 199 -1648 618 -117 -521 1508 -764 -5225 -2154 487 -885 -1034 -1102 1006 554 1118 -908 -667 0 44 -900 -133 514 1000 1273 706 928 11 2581 253 560 -3547 556 542 2036 1078 1618 -136 -1083 602 -272 476 374 538 744 -7 -71 709 -52 -747 -1426 -426 -1042 -1218 -2136 -748 -1352 -666 338 -411 -405 17 412 1149 -163 61 13 926 -21 1085 110 406 -143 -260 -839 -1198 302 -958 -222 -617 -583 -701 129 600 275 554 310 -17 -35 -80 -144 -44 328 -91 555 293 -140 148 181 236 1684 282 474 679 -154 -245 -70 43 -334 -255 9 -61 -270 -420 51 -312 -276 -62 -431 -876 -863 -609 577 1216 -112 -1134 538 -446 -286 1333 -10 -299 339 -923 484 -281 519 1232 -36 -117 -500 -316 168 60 -484 182 -38 -165 504 -257 -1710 -701 173 -378 -530 -591 565 324 666 -553 -404 0 26 -519 -75 295 611 828 487 671 8 1915 195 423 -2736 412 420 1686 902 1417 -117 -866 483 -219 383 340 528 750 -7 -68 617 -44 -583 -1089 -346 -890 -1167 -2267 -769 -1467 -771 414 -495 -501 21 512 1302 -171 63 13 936 -24 1352 142 547 -189 -320 -1021 -1393 362 -1179 -284 -831 -822 -1043 191 926 428 824 457 -23 -45 -103 -194 -64 470 -132 791 436 -200 199 231 309 2197 374 669 1007 -236 -359 -107 70 -568 -418 16 -102 -440 -700 82 -490