File name: Pandora156s1_HamptonVA-HU_20230530_L2Fit_fwvt1c2d20220209p1-8.txt File generation date: 20240202T172926.6Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c2p1-8 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_v2d20220209.txt Level 1 file used: Pandora156s1_HamptonVA-HU_20230530_L1_smca1c2d20220209p1-8.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: 20230530 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: 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 20230530T145723.8Z 8550.623192 294 1 47.62 2 31.08 110.52 140.40 38.32 0.00 1 0.00 1 0 15 7.847e-03 7.769e-03 5.958e-03 5.921e-03 7.266544e+03 4.505468e+02 5.297442e+02 -6.000000e+00 4.940391e+02 287.36 -2.00 20.00 -2.00 505.25 0.00e+00 2.775721e-04 1.729798e-04 2.668207e-05 -6.000000e+00 2.328330e-04 287.36 -2.00 20.00 -2.00 500.18 0.00e+00 -1.713537e-01 1.255196e-01 3.837048e-02 -6.000000e+00 1.638144e-01 232.03 -2.00 3.43 -2.00 501.82 0.00e+00 1.167 0.000 489.00 513.00 1 8.8650e+00 9.7282e-03 3.8016e-03 -6.0000e+00 1.2695e-02 1.2660e-02 2.3708e-03 1.0389e-03 -6.0000e+00 3.1433e-03 2.3366e-04 1.6513e-03 8.0895e-04 3.2350e-05 -6.0000e+00 1.1551e-03 2.0067e-03 6.4218e-06 12 8 8 10 0 0 89.95 23.53 2.74 0.00201 0.01346 20 5 1 4 0 2378.890 26.41 20.00 23.53 23.35 14.4 1012.09 541 663 753 188 -489 -792 442 -357 94 -412 395 -1054 254 -1081 617 51 -46 -224 -1154 303 492 1624 365 718 476 1381 429 -375 228 164 -827 82 168 479 25 -160 -1779 -439 -153 489 -10 -906 -272 634 72 -1370 -135 -690 -478 607 -38 1179 -235 -275 -1413 -141 -30 53 -680 -667 -361 404 505 42 622 442 -298 -90 116 112 745 523 -90 -38 1256 91 62 -1323 -377 -139 200 153 295 9 -30 642 -1487 1188 -44 -273 -412 293 1332 -328 1660 -1207 2862 -726 -304 -1258 -255 252 -441 -466 308 -1002 -727 -770 91 -1777 206 1228 1698 -65 -205 501 424 1496 -822 335 -2033 -1181 -349 870 411 54 -978 -250 779 149 991 -928 -1095 1157 347 747 -650 1190 366 -1949 -60 470 105 156 -960 -114 731 1249 -131 -575 414 358 525 647 749 193 -517 -856 478 -392 103 -450 423 -1130 265 -1135 635 53 -49 -240 -1265 331 542 1773 405 794 528 1513 471 -409 244 173 -867 85 176 509 27 -176 -1920 -483 -166 526 -10 -952 -286 665 76 -1475 -143 -728 -495 610 -38 1131 -226 -265 -1392 -139 -30 54 -704 -693 -375 416 521 44 636 449 -301 -89 113 108 714 501 -87 -37 1209 89 60 -1285 -359 -132 188 144 279 8 -29 619 -1472 1150 -43 -269 -408 290 1309 -328 1617 -1193 2663 -684 -280 -1148 -228 226 -405 -438 295 -956 -699 -742 87 -1723 196 1165 1617 -64 -202 493 420 1468 -825 330 -2036 -1159 -336 822 389 51 -936 -237 731 140 920 -872 -1020 1044 314 675 -600 1091 343 -1898 -58 457 103 154 -956 -112 709 1191 -125 -545 387 335 SQ 20230530T161842.5Z 8550.679659 347 1 46.29 2 17.98 144.78 128.77 60.51 0.00 1 0.00 1 0 15 5.276e-03 5.248e-03 3.752e-03 3.726e-03 6.424291e+03 2.790428e+02 3.960565e+02 -6.000000e+00 3.321576e+02 287.36 -2.00 20.00 -2.00 505.21 0.00e+00 2.073882e-04 1.082136e-04 3.597422e-05 -6.000000e+00 1.565510e-04 287.36 -2.00 20.00 -2.00 500.13 0.00e+00 -1.060403e-01 7.870989e-02 5.020428e-02 -6.000000e+00 1.101646e-01 232.03 -2.00 3.43 -2.00 501.77 0.00e+00 1.051 0.000 489.00 513.00 1 8.3864e+00 6.0904e-03 4.4997e-03 -6.0000e+00 8.5370e-03 1.2900e-02 1.4972e-03 1.1102e-03 -6.0000e+00 2.1145e-03 3.8253e-04 8.1231e-04 5.1089e-04 1.0628e-05 -6.0000e+00 7.7637e-04 1.0911e-03 -1.2015e-05 12 8 8 10 0 0 86.70 23.52 2.27 0.00109 0.00673 21 6 1 4 0 2203.680 26.41 20.00 23.52 23.31 14.5 1011.77 -209 -944 -159 73 190 -338 772 215 711 -218 -52 -573 -255 303 -542 -156 497 -1 167 -343 -645 125 325 745 -49 498 1161 -172 -78 122 -170 253 1009 -566 873 -681 -355 188 286 -190 211 -1462 -161 68 158 319 227 439 -43 759 -348 -177 -930 117 -182 -473 -572 11 -337 226 211 317 242 -225 -525 -246 763 252 196 -375 54 627 1049 -715 -394 -314 -822 29 -768 378 152 603 -769 107 -251 796 -462 -107 -792 432 -1441 -366 -28 -355 -147 -17 -234 230 10 -830 238 -724 148 -249 279 71 -458 -606 417 35 -431 700 1240 842 -522 218 111 846 -454 604 -251 28 -493 659 -119 858 1541 -307 128 112 -76 -40 968 -246 453 356 430 -8 -124 133 -4 -59 119 316 -614 367 -787 275 -1056 489 -300 -1090 -207 -948 -162 76 202 -368 843 238 782 -241 -57 -620 -272 318 -571 -165 525 -1 183 -382 -726 140 365 834 -56 558 1283 -191 -85 130 -179 266 1061 -585 905 -725 -378 198 299 -199 219 -1545 -168 71 167 337 239 458 -44 762 -345 -173 -901 112 -177 -468 -577 11 -347 232 218 326 250 -233 -542 -251 762 250 192 -366 52 599 1000 -697 -384 -306 -801 27 -733 354 142 563 -732 101 -241 764 -452 -105 -782 422 -1441 -364 -28 -355 -146 -16 -225 216 10 -757 213 -657 135 -234 266 69 -455 -602 410 35 -427 689 1226 842 -509 213 109 825 -448 587 -243 27 -470 616 -112 796 1421 -288 120 105 -70 -37 873 -222 404 318 387 -8 -115 125 -4 -57 115 306 -601 355 -765 262 -1004 453 -278 -1019