File name: Pandora155s1_BostonMA_20240818_L2Fit_fout2c2d20231025p1-8.txt File generation date: 20240902T144753.8Z Data description: Level 2 spectral fitting results file Data file version: fout2c2p1-8 Local principal investigator: Jeff Gedes Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 155 Spectrometer number: 1 Processing software version used: BlickP v1.8.59 Instrument operation file used: Pandora155_OF_v4d20190702.txt Instrument calibration file used: Pandora155s1_CF_v2d20231025.txt Level 1 file used: Pandora155s1_BostonMA_20240818_L1_smca1c2d20231025p1-8.txt Full location name: Boston University Short location name: BostonMA Country of location: USA Location latitude [deg]: 42.3497 Location longitude [deg]: -71.1040 Location altitude [m]: 40 Local noon date: 20240818 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: OOB session based on clearance session 1 First and last pixel inside fitting window: 232 374 Nominal wavelengths inside fitting window [nm]: 305.1059 305.2467 305.3875 305.5283 305.6692 305.8100 305.9507 306.0915 306.2323 306.3730 306.5138 306.6545 306.7952 306.9359 307.0766 307.2173 307.3580 307.4987 307.6393 307.7800 307.9206 308.0612 308.2018 308.3424 308.4830 308.6236 308.7641 308.9047 309.0452 309.1857 309.3263 309.4668 309.6073 309.7477 309.8882 310.0287 310.1691 310.3096 310.4500 310.5904 310.7308 310.8712 311.0116 311.1519 311.2923 311.4326 311.5730 311.7133 311.8536 311.9939 312.1342 312.2745 312.4148 312.5550 312.6953 312.8355 312.9757 313.1159 313.2561 313.3963 313.5365 313.6767 313.8168 313.9569 314.0971 314.2372 314.3773 314.5174 314.6575 314.7976 314.9376 315.0777 315.2177 315.3577 315.4978 315.6378 315.7778 315.9177 316.0577 316.1977 316.3376 316.4776 316.6175 316.7574 316.8973 317.0372 317.1771 317.3169 317.4568 317.5966 317.7365 317.8763 318.0161 318.1559 318.2957 318.4355 318.5752 318.7150 318.8547 318.9945 319.1342 319.2739 319.4136 319.5533 319.6930 319.8326 319.9723 320.1119 320.2515 320.3912 320.5308 320.6704 320.8099 320.9495 321.0891 321.2286 321.3682 321.5077 321.6472 321.7867 321.9262 322.0657 322.2051 322.3446 322.4840 322.6235 322.7629 322.9023 323.0417 323.1811 323.3204 323.4598 323.5992 323.7385 323.8778 324.0171 324.1565 324.2957 324.4350 324.5743 324.7136 324.8528 324.9920 --------------------------------------------------------------------------------------- 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 20240818T153646.2Z 8996.650534 345 1 26.32 2 33.37 147.09 159.43 349.89 0.00 1 0.00 1 0 17 9.336e-03 6.762e-03 1.389e-03 9.103e-04 1.660971e-01 4.742966e-04 2.032493e-03 -6.000000e+00 5.458419e-03 231.56 -2.00 3.54 -2.00 315.17 0.00e+00 2.153259e-04 4.271472e-05 2.441068e-05 -6.000000e+00 2.453670e-04 288.86 -2.00 20.00 -2.00 314.46 0.00e+00 1.197 0.000 302.00 328.00 3 3.7938e+00 1.2270e-03 1.4858e-02 -6.0000e+00 1.3650e-02 3.6612e-02 1.3634e-03 8.7459e-03 -6.0000e+00 1.4780e-02 6.1293e-04 7.7699e-04 4.2465e-03 -6.0000e+00 8.8116e-03 -3.6944e-03 3.3999e-04 1.1647e-03 -6.0000e+00 3.6989e-03 3.0741e-03 1.2712e-04 2.6446e-05 1.5871e-05 -6.0000e+00 2.6372e-04 -1.5324e-02 0.0000e+00 12 9 1 12 1 1 99.90 19.04 0.38 -0.01532 -0.01437 41 15 1 5 0 626.610 21.98 15.00 19.04 28.70 4.2 998.13 235 -438 -603 -3010 -3580 -1035 -581 772 757 -1093 -2395 -1392 -234 -431 751 -24 60 936 782 1329 529 4 1296 1188 786 1074 401 -492 -289 746 1369 1617 1735 -1353 -3120 -2141 -2166 -978 -272 -529 -911 -641 -333 -665 215 -140 -266 -185 -587 171 1092 702 936 1272 769 1270 716 291 323 369 861 1383 1526 1491 -238 -584 -459 -827 929 161 62 196 27 367 -295 -421 -578 -1162 -287 499 -1336 -1616 -2341 -1555 -836 -768 -293 -30 314 206 318 307 -135 495 293 106 361 751 63 -406 -222 -729 -18 124 -595 -1052 -362 -505 150 366 507 224 357 300 282 381 301 92 265 -124 -357 33 358 234 768 320 414 1263 690 258 271 -388 -88 24 129 -383 30 150 -110 -351 -187 -642 -481 74 -147 -200 -934 -999 -272 -161 235 251 -378 -820 -481 -87 -180 313 -11 27 431 370 642 259 2 637 610 422 586 215 -247 -135 336 633 788 889 -709 -1558 -1056 -1175 -613 -185 -410 -705 -512 -270 -541 173 -111 -205 -147 -454 131 866 548 763 1073 665 1109 634 256 280 320 773 1321 1453 1470 -231 -554 -400 -707 837 153 64 207 28 371 -298 -381 -510 -981 -252 448 -1354 -1666 -2565 -1776 -953 -935 -373 -39 406 254 361 336 -135 513 299 119 415 938 82 -517 -263 -861 -21 148 -726 -1358 -485 -662 204 522 746 328 494 405 349 445 353 113 352 -165 -489 44 469 311 961 381 501 1528 831 330 358 -524 -121 32 182 -569 46 220 -162 -535 -275 -921 -680 SS 20240818T154525.1Z 8996.656540 351 1 47.76 2 32.55 150.66 159.60 355.31 0.00 1 0.00 1 0 17 1.659e-02 1.382e-02 4.290e-03 2.389e-03 1.673858e-01 1.233777e-03 2.004866e-03 -6.000000e+00 9.698918e-03 231.56 -2.00 3.54 -2.00 315.86 0.00e+00 7.568987e-04 1.279145e-04 5.060882e-05 -6.000000e+00 4.360298e-04 288.86 -2.00 20.00 -2.00 315.07 0.00e+00 1.186 0.000 302.00 328.00 3 5.6728e+00 3.2165e-03 1.4769e-02 -6.0000e+00 2.4254e-02 4.4207e-02 3.5894e-03 8.7585e-03 -6.0000e+00 2.6264e-02 4.1685e-03 2.0480e-03 4.2219e-03 -6.0000e+00 1.5658e-02 -5.2837e-03 9.1740e-04 1.2302e-03 -6.0000e+00 6.5716e-03 4.7010e-04 7.0285e-04 7.0287e-05 1.4516e-05 -6.0000e+00 4.6869e-04 -1.4296e-02 0.0000e+00 12 9 9 12 1 1 99.99 19.07 0.25 -0.01430 -0.00901 17 4 1 5 0 2653.190 21.98 15.01 19.07 29.31 4.2 1004.98 -46 -205 -1505 -2938 -3153 -562 -1457 310 -2221 -3029 -3262 -2491 -1606 97 39 -489 453 975 547 1744 645 -520 1609 1262 610 1140 -335 -1368 -912 1284 1138 2193 1518 -1023 -3832 -2265 -1646 -709 339 -161 -821 -666 -106 -413 359 -36 230 -550 -1281 724 1633 1814 1494 1233 748 1357 1148 729 58 680 801 1924 2439 2099 52 -872 -619 -852 1433 991 778 691 260 154 -210 -899 -1453 -1226 -257 -14328 -864 -918 -1722 -1144 -619 -429 127 546 984 285 -32 67 -809 -11 -25 764 581 1053 191 -357 -480 -915 2 341 -339 -829 -155 -8 1080 817 902 362 365 -80 -295 -184 42 139 646 72 -286 91 158 164 282 79 -7 1414 293 270 71 -165 -366 33 244 -135 232 287 -80 -507 -131 -776 -520 -11 -54 -393 -709 -683 -115 -319 74 -590 -827 -872 -677 -475 32 14 -188 176 385 223 720 271 -219 675 553 280 529 -154 -589 -365 492 454 915 671 -459 -1654 -963 -767 -383 203 -110 -605 -506 -82 -319 274 -27 168 -389 -884 490 1144 1340 1158 994 617 1128 964 609 48 562 688 1667 2247 2006 48 -790 -515 -697 1232 912 773 710 265 151 -201 -777 -1141 -917 -200 -13620 -835 -918 -1829 -1269 -732 -517 160 701 1249 348 -37 72 -830 -11 -26 827 695 1364 246 -470 -590 -1049 2 396 -428 -1107 -205 -11 1530 1221 1389 555 529 -107 -378 -223 51 177 887 101 -410 129 217 224 365 97 -9 1654 366 357 97 -230 -519 46 361 -209 368 464 -130 -808 -201 -1164 -770