File name: Pandora31s1_CharlesCityVA_20241001_L2Fit_fout2c6d20240321p1-8.txt File generation date: 20241021T191930.4Z Data description: Level 2 spectral fitting results file Data file version: fout2c6p1-8 Local principal investigator: Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 31 Spectrometer number: 1 Processing software version used: BlickP v1.8.60 Instrument operation file used: Pandora31_OF_v1d20240301.txt Instrument calibration file used: Pandora31s1_CF_v6d20240321.txt Level 1 file used: Pandora31s1_CharlesCityVA_20241001_L1_smca1c6d20240321p1-8.txt Full location name: Richmond VCU Short location name: CharlesCityVA Country of location: USA Location latitude [deg]: 37.3260 Location longitude [deg]: -77.2057 Location altitude [m]: 6 Local noon date: 20241001 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 session5 First and last pixel inside fitting window: 253 395 Nominal wavelengths inside fitting window [nm]: 305.0805 305.2214 305.3622 305.5031 305.6439 305.7847 305.9255 306.0662 306.2070 306.3477 306.4884 306.6291 306.7698 306.9105 307.0511 307.1918 307.3324 307.4730 307.6135 307.7541 307.8946 308.0352 308.1757 308.3162 308.4566 308.5971 308.7376 308.8780 309.0184 309.1588 309.2992 309.4395 309.5799 309.7202 309.8605 310.0008 310.1411 310.2814 310.4216 310.5619 310.7021 310.8423 310.9825 311.1227 311.2629 311.4030 311.5431 311.6833 311.8234 311.9635 312.1035 312.2436 312.3836 312.5237 312.6637 312.8037 312.9437 313.0837 313.2236 313.3636 313.5035 313.6434 313.7833 313.9232 314.0631 314.2030 314.3428 314.4826 314.6225 314.7623 314.9021 315.0418 315.1816 315.3214 315.4611 315.6008 315.7405 315.8802 316.0199 316.1596 316.2993 316.4389 316.5785 316.7182 316.8578 316.9974 317.1369 317.2765 317.4161 317.5556 317.6951 317.8346 317.9741 318.1136 318.2531 318.3926 318.5320 318.6715 318.8109 318.9503 319.0897 319.2291 319.3685 319.5078 319.6472 319.7865 319.9259 320.0652 320.2045 320.3438 320.4830 320.6223 320.7616 320.9008 321.0400 321.1792 321.3184 321.4576 321.5968 321.7360 321.8751 322.0143 322.1534 322.2925 322.4316 322.5707 322.7098 322.8489 322.9879 323.1270 323.2660 323.4050 323.5440 323.6830 323.8220 323.9610 324.1000 324.2389 324.3778 324.5168 324.6557 324.7946 324.9335 --------------------------------------------------------------------------------------- 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 20241001T195855.5Z 9040.832587 261 1 30.82 2 58.59 236.03 62.41 247.40 0.00 1 0.00 1 0 17 9.858e-03 5.736e-03 6.027e-03 2.198e-03 2.534359e-01 1.112258e-03 3.002014e-03 -6.000000e+00 5.642961e-03 227.72 -2.00 3.44 -2.00 316.95 0.00e+00 2.621634e-04 1.501934e-04 1.358435e-04 -6.000000e+00 2.546250e-04 288.28 -2.00 20.00 -2.00 316.14 0.00e+00 1.911 0.000 302.00 328.00 3 5.2176e+00 2.9188e-03 2.3009e-02 -6.0000e+00 1.3993e-02 4.5044e-02 3.2814e-03 1.2811e-02 -6.0000e+00 1.5166e-02 3.4647e-03 1.9395e-03 6.2728e-03 -6.0000e+00 9.0643e-03 -5.6882e-03 9.4562e-04 1.7500e-03 -6.0000e+00 3.8868e-03 3.0901e-04 -8.1496e-06 6.3053e-05 2.0282e-05 -6.0000e+00 2.6679e-04 -5.7074e-03 1.0966e-04 10 0 0 10 0 0 99.75 23.45 0.33 -0.00571 -0.00577 14 14 1 5 0 2201.330 26.11 20.00 23.45 31.25 9.9 1030.22 -1763 -1739 -3948 -2354 -175 -2754 -1719 -3477 2687 -287 -1069 -3259 -727 -628 -296 1001 194 -407 753 324 -22 633 -694 -615 -90 233 1003 -234 119 -448 325 1515 1513 -987 -1076 -2378 -1302 -968 70 -198 -410 -524 -793 77 472 -116 -1108 -576 -544 246 266 281 1379 933 962 769 722 774 143 588 788 1357 1905 1003 834 509 -643 -468 175 600 266 196 167 733 -224 -372 -1151 -1782 -855 -953 -850 -1233 -1415 -1421 -1051 -642 -187 525 191 288 333 102 -270 -251 -166 178 562 683 2 581 -588 -948 -639 -759 -492 -513 -824 -424 372 466 602 441 -26 215 -203 142 -337 -51 207 235 -32 325 227 609 253 332 537 603 63 405 481 -25 -227 -76 -205 154 232 137 -57 0 -439 -509 -640 -229 -245 -577 -317 -21 -323 -212 -488 393 -45 -168 -536 -130 -128 -68 245 50 -108 206 92 -6 180 -205 -191 -29 78 331 -74 35 -132 100 494 528 -360 -370 -814 -479 -405 34 -109 -243 -322 -499 49 296 -73 -692 -350 -326 147 166 186 942 667 705 573 545 584 106 435 596 1078 1606 891 741 427 -514 -366 142 534 254 194 164 702 -205 -315 -911 -1358 -668 -814 -789 -1235 -1488 -1543 -1195 -763 -230 658 241 353 389 112 -279 -253 -173 198 669 872 3 768 -751 -1150 -743 -898 -615 -667 -1105 -585 527 688 918 681 -39 311 -278 186 -440 -68 289 343 -48 480 332 863 347 441 688 767 83 564 691 -36 -339 -116 -323 252 386 231 -97 0 -723 -821 -1015