File name: Pandora255s1_VirginiaBeachVA-CBBT_20240725_L2Fit_fout2c3d20240302p1-8.txt File generation date: 20241220T094403.5Z Data description: Level 2 spectral fitting results file Data file version: fout2c3p1-8 Local principal investigator: John Anderson Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 255 Spectrometer number: 1 Processing software version used: BlickP v1.8.60 Instrument operation file used: Pandora255_OF_v2d20221206.txt Instrument calibration file used: Pandora255s1_CF_v3d20240302.txt Level 1 file used: Pandora255s1_VirginiaBeachVA-CBBT_20240725_L1_smca1c3d20240302p1-8.txt Full location name: Chesapeake Bay Bridge Tunnel Virginia Short location name: VirginiaBeachVA-CBBT Country of location: United States Location latitude [deg]: 37.0367 Location longitude [deg]: -76.0766 Location altitude [m]: 20 Local noon date: 20240725 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: 195 336 Nominal wavelengths inside fitting window [nm]: 305.1318 305.2728 305.4137 305.5546 305.6955 305.8364 305.9773 306.1182 306.2590 306.3999 306.5407 306.6815 306.8224 306.9632 307.1040 307.2447 307.3855 307.5263 307.6670 307.8078 307.9485 308.0892 308.2299 308.3706 308.5113 308.6520 308.7926 308.9333 309.0739 309.2146 309.3552 309.4958 309.6364 309.7770 309.9175 310.0581 310.1986 310.3392 310.4797 310.6202 310.7607 310.9012 311.0417 311.1822 311.3227 311.4631 311.6035 311.7440 311.8844 312.0248 312.1652 312.3056 312.4459 312.5863 312.7267 312.8670 313.0073 313.1476 313.2880 313.4282 313.5685 313.7088 313.8491 313.9893 314.1296 314.2698 314.4100 314.5502 314.6904 314.8306 314.9707 315.1109 315.2511 315.3912 315.5313 315.6714 315.8115 315.9516 316.0917 316.2318 316.3718 316.5119 316.6519 316.7920 316.9320 317.0720 317.2120 317.3519 317.4919 317.6319 317.7718 317.9117 318.0517 318.1916 318.3315 318.4714 318.6113 318.7511 318.8910 319.0308 319.1706 319.3105 319.4503 319.5901 319.7299 319.8696 320.0094 320.1492 320.2889 320.4286 320.5684 320.7081 320.8478 320.9874 321.1271 321.2668 321.4064 321.5461 321.6857 321.8253 321.9649 322.1045 322.2441 322.3837 322.5232 322.6628 322.8023 322.9418 323.0813 323.2208 323.3603 323.4998 323.6393 323.7787 323.9182 324.0576 324.1970 324.3364 324.4758 324.6152 324.7546 324.8940 --------------------------------------------------------------------------------------- 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 20240725T190413.0Z 8972.794595 529 1 54.48 2 30.36 242.32 134.82 318.26 0.00 1 0.00 1 0 17 7.579e-03 6.238e-03 9.496e-04 7.289e-04 1.575444e-01 3.876307e-04 1.858693e-03 -6.000000e+00 4.476859e-03 232.20 -2.00 3.43 -2.00 314.38 0.00e+00 1.590106e-04 3.029382e-05 1.304909e-05 -6.000000e+00 2.032235e-04 291.78 -2.00 20.00 -2.00 313.72 0.00e+00 1.158 0.000 302.00 328.00 3 4.8831e+00 9.9630e-04 1.4142e-02 -6.0000e+00 1.1205e-02 6.5263e-03 1.0984e-03 8.0193e-03 -6.0000e+00 1.2097e-02 -5.7424e-04 6.2941e-04 3.8780e-03 -6.0000e+00 7.2188e-03 -1.1593e-03 2.7308e-04 1.0625e-03 -6.0000e+00 3.0713e-03 1.1033e-03 2.9925e-04 2.1218e-05 1.5343e-05 -6.0000e+00 2.1605e-04 3.9408e-02 0.0000e+00 10 0 0 10 0 0 99.97 24.02 0.34 0.03941 0.04166 81 8 1 5 0 672.490 31.50 20.00 24.02 30.49 4.9 1100.00 -1060 -1357 -2563 -1837 54 873 934 1337 448 -591 199 30 221 210 -452 -292 942 257 686 866 722 1441 853 708 -39 -705 -355 -145 1431 1459 1563 1122 -814 -1792 -185 -47 -377 -314 -744 -1088 -1148 -845 -1005 -820 -882 -974 -838 -701 -8 646 625 543 765 491 745 732 418 690 896 1106 1078 1182 942 -170 -346 323 263 1171 513 -72 27 -24 175 269 -48 34 132 455 -240 -967 -1372 -1991 -1500 -956 -860 -503 -239 -325 -43 157 240 471 1241 805 250 549 374 -301 -387 -132 -288 338 389 -360 -1064 -592 -560 -183 175 79 -68 -80 -1 304 506 706 535 337 -102 -363 -227 -119 154 574 530 554 1165 762 301 -40 -168 -57 192 -79 -164 -143 87 -314 -155 -263 -368 -343 -455 -593 -1068 -726 20 318 374 551 196 -258 85 14 105 111 -243 -161 523 147 402 515 428 850 495 430 -24 -446 -211 -84 777 800 899 685 -489 -1091 -107 -29 -250 -222 -584 -896 -989 -743 -853 -723 -771 -831 -687 -577 -6 530 517 471 661 437 671 668 382 619 798 1007 998 1172 945 -172 -337 296 239 1047 493 -74 29 -25 183 277 -47 31 112 386 -215 -932 -1397 -2092 -1643 -1068 -994 -614 -292 -399 -52 186 268 493 1268 813 264 614 443 -367 -470 -156 -328 378 446 -433 -1321 -738 -727 -238 238 109 -94 -106 -1 377 605 828 653 426 -135 -481 -301 -154 197 718 653 646 1384 915 371 -51 -214 -73 253 -107 -226 -203 127 -447 -225 -371 -503 -474 SS 20240725T191737.5Z 8972.803906 538 1 49.74 2 32.77 246.23 136.40 322.24 0.00 1 0.00 1 0 17 7.580e-03 6.529e-03 9.224e-04 7.097e-04 1.649171e-01 3.774349e-04 1.963128e-03 -6.000000e+00 4.477100e-03 232.20 -2.00 3.43 -2.00 314.39 0.00e+00 1.319908e-04 2.951845e-05 1.577323e-05 -6.000000e+00 2.032414e-04 291.78 -2.00 20.00 -2.00 313.72 0.00e+00 1.189 0.000 302.00 328.00 3 4.6934e+00 9.6956e-04 1.4635e-02 -6.0000e+00 1.1205e-02 1.4746e-02 1.0701e-03 8.4296e-03 -6.0000e+00 1.2098e-02 -7.0971e-03 6.1324e-04 4.0844e-03 -6.0000e+00 7.2193e-03 2.4396e-04 2.6516e-04 1.1165e-03 -6.0000e+00 3.0714e-03 1.2742e-03 1.5172e-04 2.0668e-05 1.6140e-05 -6.0000e+00 2.1607e-04 3.9732e-02 0.0000e+00 12 9 1 12 1 1 97.20 24.03 0.28 0.03973 0.04087 52 6 1 5 0 938.450 31.50 20.00 24.03 31.63 4.8 1100.00 -1343 -1521 -2479 -2075 191 1141 681 955 -115 -616 -9 260 -117 286 90 -425 1052 426 485 916 611 1486 1082 643 -39 -523 -188 257 872 1533 1260 1276 -474 -1472 -273 -344 -404 -40 -860 -1214 -1113 -709 -1021 -609 -692 -874 -783 -546 243 647 639 521 719 500 856 781 472 704 791 1028 948 1022 553 -175 -309 238 389 980 618 -282 -30 33 19 91 -58 146 140 363 -285 -933 -1393 -1722 -1500 -1163 -919 -561 -393 -291 -169 85 181 422 1164 826 214 542 299 -320 -454 -146 -324 274 323 -591 -1133 -812 -769 2102 82 -37 -14 54 -53 377 701 650 451 280 -180 -495 -238 -104 143 469 410 570 1097 671 257 -15 -213 -48 167 -37 -190 -78 10 -317 -141 -277 -301 -352 -584 -673 -1045 -828 69 418 276 400 -51 -272 -4 120 -57 145 50 -230 570 238 278 532 354 857 649 385 -24 -325 -116 146 493 871 716 766 -296 -881 -155 -207 -266 -28 -680 -1012 -932 -605 -881 -520 -587 -755 -650 -435 197 537 538 442 635 454 787 700 424 646 720 920 900 1002 553 -175 -298 215 347 902 589 -287 -31 35 20 93 -56 131 121 316 -263 -895 -1419 -1812 -1650 -1313 -1075 -672 -487 -362 -204 99 203 442 1187 868 228 614 361 -399 -563 -175 -373 309 361 -696 -1384 -1033 -987 2732 111 -51 -19 74 -70 461 823 777 543 350 -236 -654 -315 -138 182 581 498 676 1277 793 323 -19 -278 -61 219 -51 -263 -111 14 -455 -199 -392 -424 -485