File name: Pandora156s1_HamptonVA-HU_20230212_L2Fit_fwvt1c5d20220209p1-8.txt File generation date: 20240912T174017.1Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c5p1-8 Local principal investigator: Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 156 Spectrometer number: 1 Processing software version used: BlickP v1.8.59 Instrument operation file used: Pandora156_OF_v2d20211021.txt Instrument calibration file used: Pandora156s1_CF_v5d20220209.txt Level 1 file used: Pandora156s1_HamptonVA-HU_20230212_L1_smca1c5d20220209p1-8.txt Full location name: Hampton University Short location name: HamptonVA-HU Country of location: United States Location latitude [deg]: 37.0203 Location longitude [deg]: -76.3366 Location altitude [m]: 19 Local noon date: 20230212 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 2 "AnaLab+Fld 1.8 VP 20220209" First and last pixel inside fitting window: 1651 1802 Nominal wavelengths inside fitting window [nm]: 492.0567 492.1766 492.2966 492.4164 492.5363 492.6562 492.7760 492.8958 493.0156 493.1354 493.2552 493.3749 493.4947 493.6144 493.7341 493.8538 493.9734 494.0931 494.2127 494.3323 494.4519 494.5715 494.6911 494.8106 494.9302 495.0497 495.1692 495.2886 495.4081 495.5276 495.6470 495.7664 495.8858 496.0052 496.1245 496.2439 496.3632 496.4825 496.6018 496.7211 496.8403 496.9596 497.0788 497.1980 497.3172 497.4363 497.5555 497.6746 497.7938 497.9129 498.0319 498.1510 498.2701 498.3891 498.5081 498.6271 498.7461 498.8651 498.9840 499.1029 499.2219 499.3408 499.4596 499.5785 499.6973 499.8162 499.9350 500.0538 500.1725 500.2913 500.4100 500.5288 500.6475 500.7662 500.8848 501.0035 501.1221 501.2407 501.3594 501.4779 501.5965 501.7151 501.8336 501.9521 502.0706 502.1891 502.3076 502.4260 502.5444 502.6628 502.7812 502.8996 503.0180 503.1363 503.2546 503.3730 503.4912 503.6095 503.7278 503.8460 503.9642 504.0824 504.2006 504.3188 504.4370 504.5551 504.6732 504.7913 504.9094 505.0275 505.1455 505.2635 505.3815 505.4995 505.6175 505.7355 505.8534 505.9713 506.0893 506.2071 506.3250 506.4429 506.5607 506.6785 506.7963 506.9141 507.0319 507.1497 507.2674 507.3851 507.5028 507.6205 507.7381 507.8558 507.9734 508.0910 508.2086 508.3262 508.4438 508.5613 508.6788 508.7963 508.9138 509.0313 509.1488 509.2662 509.3836 509.5010 509.6184 509.7358 509.8531 509.9704 --------------------------------------------------------------------------------------- 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: Humidity in head sensor [%], -9=no humidity signal Column 100: Pressure in head sensor [hPa], -9=no pressure signal Columns 101-252: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 253-404: 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 --------------------------------------------------------------------------------------- SQ 20230212T181049.7Z 8443.757519 467 1 46.32 2 52.04 195.87 123.31 273.94 0.00 1 0.00 1 0 15 1.239e-02 1.169e-02 9.226e-03 9.161e-03 5.539043e+03 6.615870e+02 4.365226e+02 -6.000000e+00 7.535387e+02 278.48 -2.00 20.00 -2.00 505.24 0.00e+00 5.233652e-04 2.618709e-04 3.648929e-05 -6.000000e+00 3.601715e-04 278.48 -2.00 20.00 -2.00 500.14 0.00e+00 4.093685e-01 1.940398e-01 2.956318e-02 -6.000000e+00 2.580729e-01 225.04 -2.00 3.43 -2.00 501.78 0.00e+00 1.622 0.000 489.00 513.00 1 9.2036e+00 1.4979e-02 3.6048e-03 -6.0000e+00 1.9944e-02 1.0581e-02 3.6846e-03 8.4539e-04 -6.0000e+00 4.9465e-03 1.4948e-04 -5.4175e-04 1.2658e-03 3.8998e-05 -6.0000e+00 1.8216e-03 -3.9244e-03 1.1604e-05 12 8 8 10 0 0 90.69 23.01 0.71 -0.00392 -0.00768 23 6 1 4 0 2013.670 26.00 20.00 23.01 12.40 12.3 1007.31 -1517 734 696 705 -1629 730 -35 -574 587 -472 379 -592 -146 -168 1960 -724 451 -343 -197 -410 -247 56 656 539 -975 1233 982 1289 50 279 -833 1038 -448 -1956 970 247 -611 -55 -625 55 579 -1438 -199 1453 803 -1050 2039 -404 1583 -784 -1503 -436 548 -742 -255 350 -645 432 -2543 85 -1072 667 -1399 1295 -676 112 -2251 811 -362 813 -619 252 1171 228 122 -909 941 -287 787 -1294 1746 -925 9599 -1109 -482 706 -197 -933 -784 -1298 -941 1901 191 -577 1663 818 510 297 -437 -24 -1122 -658 -1153 2618 -389 -1240 -295 -1888 142 -1488 -14 -753 1558 -433 1026 -588 1158 -633 -903 253 412 245 1415 1000 -637 524 -1167 49 -730 155 -552 1398 -1888 -436 144 323 -28 620 1379 -942 -516 -539 380 669 -222 572 1129 -532 368 -1184 -199 565 -1545 735 688 714 -1730 773 -38 -631 637 -515 406 -632 -154 -175 1985 -755 470 -366 -213 -450 -273 62 723 596 -1095 1351 1072 1387 53 293 -873 1065 -471 -2119 1038 269 -674 -60 -682 59 620 -1572 -216 1562 874 -1132 2189 -427 1618 -805 -1520 -428 526 -721 -248 345 -653 439 -2687 88 -1123 688 -1472 1325 -702 114 -2326 802 -358 785 -601 242 1116 220 119 -892 901 -276 741 -1233 1609 -876 8228 -1066 -464 677 -191 -917 -771 -1286 -933 1841 189 -577 1621 795 488 279 -404 -22 -1018 -595 -1032 2304 -361 -1183 -282 -1837 135 -1436 -13 -727 1482 -424 998 -585 1138 -635 -909 251 404 238 1343 945 -610 496 -1123 46 -699 147 -523 1290 -1784 -402 132 294 -25 573 1283 -910 -502 -530 363 639 -215 548 1067 -506 342 -1104 -183 515 SQ 20230212T193253.8Z 8443.814511 520 1 46.57 2 59.53 218.30 138.85 288.27 0.00 1 0.00 1 0 15 7.371e-03 7.121e-03 4.997e-03 4.968e-03 4.114625e+03 3.476649e+02 3.396993e+02 -6.000000e+00 4.481836e+02 278.48 -2.00 20.00 -2.00 505.24 0.00e+00 6.109220e-04 1.413807e-04 3.587424e-05 -6.000000e+00 2.142249e-04 278.48 -2.00 20.00 -2.00 500.21 0.00e+00 3.908586e-01 1.043602e-01 2.037933e-02 -6.000000e+00 1.535187e-01 225.04 -2.00 3.43 -2.00 501.83 0.00e+00 1.964 0.000 489.00 513.00 1 8.5859e+00 8.0482e-03 3.4628e-03 -6.0000e+00 1.1864e-02 1.0340e-02 1.9828e-03 6.2637e-04 -6.0000e+00 2.9431e-03 2.6483e-04 1.8292e-03 6.9241e-04 3.9292e-05 -6.0000e+00 1.0834e-03 5.4182e-03 -5.9998e-05 12 8 8 10 0 0 92.97 23.00 2.39 0.00542 0.01811 21 6 1 4 0 2217.160 25.90 19.99 23.00 13.37 12.3 1016.01 -219 489 603 -473 -1015 1044 754 -316 585 -27 358 -479 -161 220 993 220 167 -459 274 -339 422 511 -88 213 566 -205 387 -420 -27 430 -23 -617 -361 -432 226 -553 -346 -70 56 -87 300 262 182 -439 0 -697 509 30 452 -834 162 615 -221 213 -1279 343 484 -200 -982 -284 -102 -271 -222 -122 -490 822 -455 -152 -597 -241 -259 158 -1419 2961 482 -516 -82 -1504 181 -1306 1019 -967 731 509 516 -638 -684 -586 225 -7 -672 -22 4591 258 216 -862 -270 1456 -797 455 -1401 86 -451 -876 -1225 -585 17 -763 -901 12 359 1035 -674 -258 -277 159 259 724 -54 -351 945 -575 159 501 436 -591 379 -85 1493 718 486 -320 491 -106 7 349 -150 67 888 -132 -94 403 -231 216 -65 225 -196 -584 -371 -602 1350 -470 -219 489 614 -482 -1065 1094 804 -343 629 -29 378 -505 -167 225 1006 226 173 -485 292 -369 459 558 -96 235 620 -226 421 -455 -28 446 -23 -638 -376 -458 242 -603 -378 -76 60 -94 319 280 195 -477 1 -766 551 33 476 -873 165 610 -219 209 -1292 347 497 -210 -1012 -292 -105 -279 -229 -125 -503 825 -457 -150 -585 -233 -249 150 -1376 2762 462 -500 -79 -1449 170 -1235 939 -911 681 478 488 -616 -664 -570 218 -7 -662 -22 4341 256 214 -851 -261 1355 -742 412 -1281 78 -415 -826 -1185 -572 17 -753 -888 11 349 1007 -674 -260 -272 157 256 713 -54 -348 914 -558 152 473 411 -563 358 -81 1393 673 454 -299 450 -97 6 316 -137 62 827 -126 -91 391 -227 212 -64 221 -192 -567 -355 -570 1245 -441