File name: Pandora66s1_HuntsvilleAL_20200210_L2Fit_fwvt1c3d20200122p1-8.txt
File generation date: 20251117T152828.7Z
Data description: Level 2 spectral fitting results file
Data file version: fwvt1c3p1-8
Local principal investigator: Nader Abuhassan
Network principal investigator: Alexander Cede
Instrument type: Pandora
Instrument number: 66
Spectrometer number: 1
Processing software version used: BlickP v1.8.75
Instrument operation file used: Pandora66_OF_v1d20200114.txt
Instrument calibration file used: Pandora66s1_CF_v3d20200122.txt
Level 1 file used: Pandora66s1_HuntsvilleAL_20200210_L1_smca1c3d20200122p1-8.txt
Full location name: The University of Alabama in Huntsville- SWIRLL
Short location name: HuntsvilleAL
Country of location: United States
Location latitude [deg]: 34.7252
Location longitude [deg]: -86.6464
Location altitude [m]: 221
Local noon date: 20200210
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: Modification of session 1, fieldcal refday 20200921
First and last pixel inside fitting window: 1678 1827
Nominal wavelengths inside fitting window [nm]: 492.1087 492.2293 492.3498 492.4704 492.5910 492.7115 492.8320 492.9525 493.0730 493.1935 493.3139 493.4344 493.5548 493.6752 493.7956 493.9159 494.0363 494.1566 494.2770 494.3973 494.5175 494.6378 494.7581 494.8783 494.9985 495.1187 495.2389 495.3591 495.4792 495.5994 495.7195 495.8396 495.9597 496.0797 496.1998 496.3198 496.4398 496.5598 496.6798 496.7998 496.9197 497.0397 497.1596 497.2795 497.3994 497.5192 497.6391 497.7589 497.8787 497.9985 498.1183 498.2381 498.3578 498.4776 498.5973 498.7170 498.8367 498.9563 499.0760 499.1956 499.3152 499.4348 499.5544 499.6740 499.7935 499.9130 500.0325 500.1520 500.2715 500.3910 500.5104 500.6298 500.7493 500.8686 500.9880 501.1074 501.2267 501.3460 501.4654 501.5846 501.7039 501.8232 501.9424 502.0616 502.1808 502.3000 502.4192 502.5383 502.6575 502.7766 502.8957 503.0148 503.1339 503.2529 503.3719 503.4910 503.6100 503.7289 503.8479 503.9668 504.0858 504.2047 504.3236 504.4425 504.5613 504.6802 504.7990 504.9178 505.0366 505.1554 505.2741 505.3929 505.5116 505.6303 505.7490 505.8677 505.9863 506.1049 506.2236 506.3422 506.4608 506.5793 506.6979 506.8164 506.9349 507.0534 507.1719 507.2904 507.4088 507.5272 507.6456 507.7640 507.8824 508.0008 508.1191 508.2374 508.3557 508.4740 508.5923 508.7105 508.8288 508.9470 509.0652 509.1834 509.3015 509.4197 509.5378 509.6559 509.7740 509.8921
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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: Water vapor slant column amount [moles per square meter], -9e99=fitting not successful
Column 23: Independent uncertainty of water vapor 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 water vapor 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 water vapor 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 water vapor 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: Water vapor effective temperature [K]
Column 28: Independent uncertainty of water vapor 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 water vapor 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 water vapor 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 water vapor fitting wavelength [nm], -9=fitting not successful
Column 32: Diffuse correction applied before fitting at effective fitting wavelength for water vapor [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction
Column 33: Nitrogen dioxide slant column amount [moles per square meter], -9e99=fitting not successful
Column 34: Independent uncertainty of nitrogen 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 nitrogen 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 nitrogen 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 nitrogen 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: Nitrogen dioxide effective temperature [K]
Column 39: Independent uncertainty of nitrogen 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 nitrogen 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 nitrogen 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 nitrogen dioxide fitting wavelength [nm], -9=fitting not successful
Column 43: Diffuse correction applied before fitting at effective fitting wavelength for nitrogen dioxide [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction
Column 44: Ozone slant column amount [moles per square meter], -9e99=fitting not successful
Column 45: 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 46: 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 47: 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 48: 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 49: Ozone effective temperature [K]
Column 50: 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 51: 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 52: 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 53: Effective ozone fitting wavelength [nm], -9=fitting not successful
Column 54: 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 55: Molecular scattering air mass factor used for molecular scattering subtraction before the fitting
Column 56: Estimated uncertainty of molecular scattering air mass factor, -9=molecular scattering was not subtracted before the fitting
Column 57: Lower limit used for wavelength scaling [nm]
Column 58: Upper limit used for wavelength scaling [nm]
Column 59: Order of smoothing polynomial
Column 60: Smoothing polynomial coefficient, order 0
Column 61: Independent uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 62: Structured uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 63: Common uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 64: rms-based uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 65: Smoothing polynomial coefficient, order 1
Column 66: Independent uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 67: Structured uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 68: Common uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 69: rms-based uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 70: Mean value of measured data inside fitting window [same units as measurements]
Column 71: Wavelength change polynomial coefficient, order 0
Column 72: Independent uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 73: Structured uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 74: Common uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 75: rms-based uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 76: L1 based wavelength change coefficient, order 0, -9=no L1 wavelength change determination
Column 77: L1 based wavelength change coefficient, order 1, -9=no L1 wavelength change determination
Column 78: 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 79: 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 80: 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 81: 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 82: 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 83: 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 84: Atmospheric variability [%], 999=no atmospheric variability was determined
Column 85: Wavelength effective temperature [°C], 999=no effective temperature given
Column 86: Estimated average residual stray light level [%] (only valid for stray light correction methods 2 and higher)
Column 87: Retrieved wavelength shift from L1 data [nm], -9=no wavelength change determination
Column 88: Retrieved total wavelength shift [nm], -9=no wavelength change fitting
Column 89: Number of bright count cycles
Column 90: Number of dark count cycles
Column 91: Effective position of filterwheel #1, 0=filterwheel not used, 1-9 are valid positions
Column 92: Effective position of filterwheel #2, 0=filterwheel not used, 1-9 are valid positions
Column 93: Sum over 2^i, 0=spectra were interpolated in time, 1=spectra are corrected for off-target signal
Column 94: Integration time [ms]
Column 95: Temperature at electronics board [°C], 999=no temperature signal
Column 96: Spectrometer control temperature [°C], 999=no temperature signal
Column 97: Auxiliary spectrometer temperature [°C], 999=no temperature signal
Column 98: Temperature in head sensor [°C], 999=no temperature signal
Column 99: Azimuth motor temperature [°C], 999=no temperature signal
Column 100: Humidity in head sensor [%], -9=no humidity signal
Column 101: Pressure in head sensor [hPa], -9=no pressure signal
Columns 102-251: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting
Columns 252-401: 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
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SO 20200210T142657.0Z 7345.602048 1889 1 19.96 2 70.59 124.40 97.99 290.24 0.00 1 0.00 1 0 24 1.871e-02 1.815e-02 1.621e-02 1.603e-02 1.057913e+04 1.140376e+03 8.326210e+02 -6.000000e+00 1.015865e+03 279.30 -2.00 20.00 -2.00 505.24 0.00e+00 2.080425e-04 4.344977e-04 5.127223e-05 -6.000000e+00 5.184647e-04 279.30 -2.00 20.00 -2.00 500.03 0.00e+00 6.853413e-02 3.269392e-01 4.354369e-02 -6.000000e+00 3.702836e-01 225.00 -2.00 3.38 -2.00 501.66 0.00e+00 2.975 0.000 489.00 513.00 1 1.0767e+01 2.4952e-02 5.9049e-03 -6.0000e+00 2.8307e-02 2.3017e-02 6.4440e-03 1.3923e-03 -6.0000e+00 7.4300e-03 2.6618e-05 -2.4572e-06 1.4773e-03 9.0656e-05 -6.0000e+00 1.8583e-03 -1.3112e-02 8.0797e-05 12 8 8 10 0 0 -16.18 26.21 2.54 -0.01311 -0.01313 5 5 1 4 0 3990.730 26.21 20.00 22.97 17.72 39.10 15.4 946.42 3371 -694 -219 300 2956 -898 1104 1223 1238 -231 -1845 -1059 1035 -232 -1669 54 621 -1616 854 -343 -1518 997 -2481 -485 -739 -83 -632 -2066 226 -1747 341 382 1057 2084 -339 -454 -439 1553 -534 3240 790 -208 1524 2486 -1657 794 -1647 2309 152 958 1151 -2197 -3477 -2342 -385 1409 344 1007 0 -1357 -940 -2013 2571 512 1643 -1580 30 -2277 -1851 -2387 -595 -228 17 -129 -201 2518 3461 1224 990 2279 1031 -2764 3183 -4335 -1877 510 765 3473 665 -1036 129 231 -839 -2911 4552 2014 131 -799 588 1036 -2817 -370 -1373 3651 -3696 -1913 2093 4873 1964 807 -3342 -300 76 1734 -13 -4231 -1096 -2054 624 -3209 -1055 1598 349 1619 1482 -364 -1251 -1131 1039 -1273 572 1242 -344 -1601 1777 -528 -796 7516 1056 961 3010 -988 109 -540 566 719 -1049 -3602 -327 605 3194 -699 -227 320 3145 -1013 1240 1378 1386 -259 -2073 -1164 1094 -246 -1790 58 643 -1754 923 -379 -1701 1089 -2808 -540 -827 -92 -701 -2283 236 -1814 344 387 1089 2199 -376 -505 -484 1655 -574 3330 833 -223 1625 2652 -1855 867 -1829 2430 161 973 1131 -2186 -3479 -2345 -388 1437 362 1061 0 -1459 -1007 -2112 2679 544 1706 -1669 31 -2351 -1877 -2315 -585 -217 16 -125 -196 2373 3177 1128 903 2116 938 -2636 2882 -4273 -1830 490 732 3225 633 -1004 125 225 -833 -2929 4155 1832 118 -701 496 858 -2434 -320 -1245 3296 -3714 -1912 2001 4473 1839 767 -3352 -295 72 1630 -12 -4256 -1079 -2056 606 -3193 -1008 1511 330 1514 1394 -349 -1172 -1057 947 -1184 518 1097 -304 -1427 1531 -472 -730 6461 983 907 2810 -966 106 -530 548 690 -1006 -3471 -300 547
SO 20200210T223835.7Z 7345.943468 8445 1 21.33 2 82.01 246.39 118.14 52.68 0.00 1 0.00 1 0 22 6.001e-02 5.915e-02 5.200e-02 5.094e-02 1.797383e+04 3.954128e+03 1.295336e+03 -6.000000e+00 3.257949e+03 279.29 -2.00 20.00 -2.00 505.26 0.00e+00 -3.070890e-04 1.387553e-03 6.262531e-05 -6.000000e+00 1.663271e-03 279.29 -2.00 20.00 -2.00 499.88 0.00e+00 -6.146404e-01 1.047088e+00 7.101916e-02 -6.000000e+00 1.188702e+00 225.01 -2.00 3.38 -2.00 501.54 0.00e+00 6.727 0.005 489.00 513.00 1 1.1443e+01 7.9732e-02 1.1520e-02 -6.0000e+00 9.0853e-02 6.7744e-02 2.0597e-02 2.2454e-03 -6.0000e+00 2.3877e-02 8.3736e-06 -1.8308e-05 4.4053e-03 1.1571e-04 -6.0000e+00 5.9610e-03 1.2549e-02 -1.4529e-04 12 8 8 10 0 0 30.42 26.32 4.25 0.01255 0.01242 8 8 1 4 0 2562.040 26.32 20.00 23.10 22.16 45.40 15.6 964.97 11443 -3792 3842 -7099 1908 -6197 -3770 676 3777 50 5493 2092 -455 -1289 -5353 3280 -4683 -4053 121 -6338 -583 -2120 -1307 1773 1350 10215 -1598 8241 -6988 15749 3277 3334 -7462 13692 -7166 3737 -11111 6408 -1753 8720 980 -1106 4330 2748 -1769 -1580 -3748 -4097 42 -4443 1069 -8711 7634 -9387 5154 -1220 4915 -5153 10397 -102 8682 6767 8872 -5792 5716 -6267 7910 -4910 4500 -12172 10796 1122 2539 -752 2831 4391 1237 -7912 1772 -4762 6752 3668 9336 4087 -1008 4858 -5185 6793 -5869 53 -5481 5315 -543 5888 88 3902 1658 1837 -5257 7590 -1337 3013 -3693 3946 2842 8809 3384 2939 726 -3608 -3579 -10058 4578 -6573 -4976 431 6128 -10503 3852 4369 -1141 -9950 7628 4470 10399 -8095 8497 -3051 -4090 -6843 2720 -8586 9499 -15244 6282 -8722 3920 -5984 11196 -1308 3656 2479 -1034 -675 4294 -6884 5544 6357 1022 1795 10210 -4014 3900 -8312 2092 -7514 -4351 781 4210 57 5860 2275 -498 -1408 -5836 3445 -5199 -4580 135 -7567 -659 -2433 -1487 1961 1504 10402 -1819 8358 -8008 13961 3258 3335 -8492 13040 -8627 4051 -13843 6615 -1939 8618 1047 -1214 4548 2963 -2009 -1792 -4310 -4663 45 -4834 1067 -9374 6920 -10196 4971 -1291 4995 -5844 10089 -109 8546 6823 8786 -6372 5775 -6762 7581 -5071 4340 -13157 9592 1061 2393 -740 2707 4106 1173 -8065 1616 -4598 5821 3289 7976 3719 -979 4496 -5306 6130 -5971 51 -5577 4898 -532 5347 82 3371 1407 1502 -4501 5639 -1091 2417 -3318 3470 2641 7881 3203 2765 691 -3595 -3600 -10469 4281 -6610 -4921 421 5729 -11320 3603 4014 -1084 -10080 6619 3990 8784 -7947 7357 -2854 -3848 -6591 2359 -8190 7750 -15275 5087 -8320 3370 -5785 9252 -1243 3346 2314 -1005 -656 3953 -7025 4920 5488 917 1589