File name: Pandora155s1_BostonMA_20210411_L2Fit_fout2c10d20190627p1-8.txt File generation date: 20241210T025755.7Z Data description: Level 2 spectral fitting results file Data file version: fout2c10p1-8 Local principal investigator: Jeff Gedes Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 155 Spectrometer number: 1 Processing software version used: BlickP v1.8.60 Instrument operation file used: Pandora155_OF_v4d20190702.txt Instrument calibration file used: Pandora155s1_CF_v10d20190627.txt Level 1 file used: Pandora155s1_BostonMA_20210411_L1_smca1c10d20190627p1-8.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: 20210411 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: 232 374 Nominal wavelengths inside fitting window [nm]: 305.1005 305.2414 305.3822 305.5230 305.6638 305.8046 305.9454 306.0862 306.2269 306.3677 306.5084 306.6492 306.7899 306.9306 307.0713 307.2120 307.3526 307.4933 307.6340 307.7746 307.9152 308.0558 308.1965 308.3371 308.4776 308.6182 308.7588 308.8993 309.0399 309.1804 309.3209 309.4614 309.6019 309.7424 309.8829 310.0233 310.1638 310.3042 310.4447 310.5851 310.7255 310.8659 311.0063 311.1467 311.2870 311.4274 311.5677 311.7080 311.8484 311.9887 312.1290 312.2692 312.4095 312.5498 312.6900 312.8303 312.9705 313.1107 313.2509 313.3911 313.5313 313.6715 313.8116 313.9518 314.0919 314.2320 314.3721 314.5122 314.6523 314.7924 314.9325 315.0725 315.2126 315.3526 315.4926 315.6327 315.7727 315.9127 316.0526 316.1926 316.3326 316.4725 316.6124 316.7524 316.8923 317.0322 317.1720 317.3119 317.4518 317.5916 317.7315 317.8713 318.0111 318.1509 318.2907 318.4305 318.5703 318.7101 318.8498 318.9895 319.1293 319.2690 319.4087 319.5484 319.6881 319.8277 319.9674 320.1070 320.2467 320.3863 320.5259 320.6655 320.8051 320.9447 321.0842 321.2238 321.3633 321.5029 321.6424 321.7819 321.9214 322.0609 322.2003 322.3398 322.4793 322.6187 322.7581 322.8975 323.0369 323.1763 323.3157 323.4551 323.5944 323.7338 323.8731 324.0124 324.1518 324.2910 324.4303 324.5696 324.7089 324.8481 324.9874 --------------------------------------------------------------------------------------- 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 --------------------------------------------------------------------------------------- SU 20210411T200940.4Z 7771.840051 268 1 4.89 2 55.94 248.21 61.10 245.34 0.00 1 0.00 1 0 17 1.202e-02 6.569e-03 6.030e-03 2.550e-03 2.736064e-01 1.296330e-03 3.297326e-03 -6.000000e+00 6.933590e-03 228.11 -2.00 3.54 -2.00 316.57 0.00e+00 4.411170e-04 1.550697e-04 5.566072e-05 -6.000000e+00 3.028741e-04 278.78 -2.00 20.00 -2.00 315.92 0.00e+00 1.780 0.000 302.00 328.00 3 3.5674e+00 3.3854e-03 2.2761e-02 -6.0000e+00 1.7254e-02 1.9307e-02 3.7971e-03 1.4084e-02 -6.0000e+00 1.8768e-02 1.1485e-04 2.2143e-03 6.9139e-03 -6.0000e+00 1.1153e-02 -3.0348e-03 1.0425e-03 1.9464e-03 -6.0000e+00 4.6663e-03 1.7899e-03 1.6682e-04 7.3993e-05 2.3657e-05 -6.0000e+00 3.3920e-04 -6.0691e-03 1.7069e-05 12 9 1 12 1 1 99.52 17.80 0.30 -0.00607 -0.00482 6 14 1 5 0 671.490 21.06 15.00 17.80 15.51 33.5 1001.14 223 -4104 496 -3973 -2221 -507 -1211 915 -70 -1820 -6400 -1415 -2469 -822 15 505 -1690 2066 478 1766 362 -390 1934 998 1717 146 1231 -1325 -963 -476 3018 739 1875 -2220 -2021 -1621 -1989 -1062 -441 -382 -1312 -256 -526 -791 240 157 -591 -509 -834 618 1522 585 1155 1267 1232 920 1299 377 635 -100 942 1142 1514 1577 27 -608 -268 -407 895 406 -169 530 258 425 -923 -358 -726 -1289 -513 -1027 -1344 -1139 -2156 -1451 -808 -730 161 20 448 239 319 31 251 675 113 -73 733 605 -134 -881 -427 -442 -131 582 -828 -786 -66 -855 50 447 578 404 76 234 351 638 342 -177 15 -170 -98 -236 336 236 728 221 237 1312 212 325 40 -169 -191 -94 20 -85 -236 405 -73 -336 -211 -465 -322 33 -678 79 -608 -330 -73 -188 156 -12 -333 -1223 -271 -542 -205 4 141 -506 621 152 571 120 -130 650 358 643 57 468 -485 -332 -164 1077 293 733 -907 -778 -626 -855 -497 -245 -228 -856 -172 -343 -519 155 101 -401 -337 -547 407 994 413 857 930 930 712 1013 294 485 -77 749 978 1326 1451 24 -517 -225 -341 761 370 -168 539 261 409 -872 -302 -593 -1030 -435 -935 -1307 -1154 -2343 -1574 -933 -860 198 25 557 284 364 34 266 707 121 -83 882 767 -178 -1147 -539 -537 -152 706 -1052 -1007 -87 -1154 71 645 871 610 111 326 469 809 439 -240 21 -250 -141 -345 474 320 969 293 301 1690 283 446 58 -250 -278 -143 31 -138 -378 657 -119 -533 -333 -709 -504 SU 20210411T203609.6Z 7771.858444 278 1 49.17 2 60.56 253.67 65.47 250.69 0.00 1 0.00 1 0 17 2.558e-02 6.026e-03 1.941e-02 3.497e-03 3.153362e-01 1.763053e-03 3.756482e-03 -6.000000e+00 1.474722e-02 228.11 -2.00 3.54 -2.00 318.52 0.00e+00 4.722747e-04 3.492265e-04 1.981750e-04 -6.000000e+00 6.445920e-04 278.78 -2.00 20.00 -2.00 317.83 0.00e+00 2.026 0.000 302.00 328.00 3 5.2329e+00 4.7815e-03 2.6111e-02 -6.0000e+00 3.6696e-02 3.4611e-02 5.4533e-03 1.6367e-02 -6.0000e+00 3.9923e-02 1.1782e-03 3.5999e-03 8.0708e-03 -6.0000e+00 2.3724e-02 -6.8980e-03 1.8509e-03 2.2842e-03 -6.0000e+00 9.9214e-03 2.4749e-04 -1.7370e-04 1.0497e-04 2.5817e-05 -6.0000e+00 7.2181e-04 -4.9738e-03 -6.0134e-05 10 0 0 10 0 0 99.95 17.80 0.23 -0.00497 -0.00628 18 3 1 5 0 2730.910 21.06 15.00 17.80 15.41 33.4 1000.66 930 -142 -38 -15117 -1922 -9221 -15144 -4455 -1194 -1881 -10695 3385 -2576 2657 -2853 1844 -1113 695 -517 2679 -314 1399 -1027 1414 844 280 1222 -850 1681 -3610 1692 -204 3929 -3850 -3288 -4747 -1095 -2530 -1481 -325 -922 -121 -70 -17 213 205 -706 -49 -1523 698 474 1273 1216 777 717 1718 785 456 -272 280 870 1898 2628 2240 -143 -592 139 -469 1184 209 85 384 -15 963 -481 -857 -1549 -506 -1262 -787 -1293 -1088 -1764 -1072 -925 -353 443 184 696 -108 754 -560 130 -661 578 -283 452 788 261 81 -661 -682 -502 74 -957 -1018 -604 1 65 618 641 441 153 -47 228 -228 -96 -323 329 -368 -110 41 328 183 722 30 50 906 74 136 296 -256 -305 162 53 -306 -105 491 -126 143 -125 -311 -418 50 -8 -2 -975 -99 -505 -952 -284 -81 -134 -837 246 -228 261 -339 230 -151 97 -76 396 -48 212 -166 237 150 52 220 -147 270 -622 300 -40 808 -861 -693 -1025 -254 -704 -488 -122 -377 -51 -31 -8 93 90 -306 -21 -653 301 219 626 636 429 391 949 443 268 -158 162 521 1164 1741 1574 -101 -391 90 -307 794 160 70 326 -12 763 -355 -599 -1000 -317 -858 -576 -1070 -988 -1715 -1091 -1007 -408 509 216 809 -126 804 -554 119 -608 566 -311 550 1008 350 106 -845 -802 -567 87 -1223 -1310 -811 2 96 978 1065 738 247 -70 316 -315 -134 -453 492 -582 -175 65 493 264 1028 41 66 1210 108 204 463 -415 -507 280 98 -566 -198 937 -241 265 -233 -556 -739