File name: Pandora200s1_GrandForksND_20240329_L2Fit_fwvt1c2d20230501p1-8.txt File generation date: 20240330T063816.0Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c2p1-8 Local principal investigator: Mafany Ndiva Mongoh Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 200 Spectrometer number: 1 Processing software version used: BlickP v1.8.59 Instrument operation file used: Pandora200_OF_v3d20210115.txt Instrument calibration file used: Pandora200s1_CF_v2d20230501.txt Level 1 file used: Pandora200s1_GrandForksND_20240329_L1_smca1c2d20230501p1-8.txt Full location name: University of North Dakota Grand Forks ND Short location name: GrandForksND Country of location: United States Location latitude [deg]: 47.9219 Location longitude [deg]: -97.0865 Location altitude [m]: 256 Local noon date: 20240329 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: based on session 1 for oob cf First and last pixel inside fitting window: 1612 1761 Nominal wavelengths inside fitting window [nm]: 492.0197 492.1413 492.2628 492.3843 492.5058 492.6273 492.7487 492.8702 492.9916 493.1130 493.2344 493.3558 493.4771 493.5985 493.7198 493.8411 493.9624 494.0837 494.2050 494.3262 494.4474 494.5686 494.6898 494.8110 494.9322 495.0533 495.1744 495.2956 495.4166 495.5377 495.6588 495.7798 495.9009 496.0219 496.1429 496.2638 496.3848 496.5057 496.6267 496.7476 496.8685 496.9894 497.1102 497.2311 497.3519 497.4727 497.5935 497.7143 497.8350 497.9558 498.0765 498.1972 498.3179 498.4386 498.5593 498.6799 498.8005 498.9211 499.0417 499.1623 499.2829 499.4034 499.5239 499.6444 499.7649 499.8854 500.0059 500.1263 500.2467 500.3672 500.4876 500.6079 500.7283 500.8486 500.9690 501.0893 501.2096 501.3298 501.4501 501.5703 501.6906 501.8108 501.9310 502.0511 502.1713 502.2914 502.4116 502.5317 502.6518 502.7718 502.8919 503.0119 503.1320 503.2520 503.3719 503.4919 503.6119 503.7318 503.8517 503.9716 504.0915 504.2114 504.3313 504.4511 504.5709 504.6907 504.8105 504.9303 505.0500 505.1698 505.2895 505.4092 505.5289 505.6485 505.7682 505.8878 506.0075 506.1271 506.2466 506.3662 506.4858 506.6053 506.7248 506.8443 506.9638 507.0833 507.2027 507.3221 507.4415 507.5609 507.6803 507.7997 507.9190 508.0384 508.1577 508.2770 508.3963 508.5155 508.6348 508.7540 508.8732 508.9924 509.1116 509.2307 509.3499 509.4690 509.5881 509.7072 509.8263 509.9453 --------------------------------------------------------------------------------------- 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 101-250: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 251-400: 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 20240329T134448.6Z 8854.572784 255 1 47.93 2 75.27 101.03 91.33 235.15 0.00 1 0.00 1 0 15 3.406e-03 3.407e-03 7.949e-04 7.935e-04 1.756483e+03 4.477995e+01 1.313684e+02 -6.000000e+00 1.810666e+02 272.40 -2.00 20.00 -2.00 505.28 0.00e+00 5.713728e-04 2.132740e-05 3.112439e-05 -6.000000e+00 9.318060e-05 272.40 -2.00 20.00 -2.00 500.46 0.00e+00 5.116745e-01 1.579035e-02 1.554723e-02 -6.000000e+00 6.812277e-02 226.54 -2.00 3.69 -2.00 502.06 0.00e+00 3.855 0.001 489.00 513.00 1 6.4504e+00 1.2049e-03 5.5511e-03 -6.0000e+00 5.1951e-03 1.0172e-03 3.1444e-04 4.6222e-04 -6.0000e+00 1.3650e-03 1.7350e-03 4.1780e-04 7.6223e-05 2.0497e-05 -6.0000e+00 3.3729e-04 2.1677e-02 2.5624e-04 10 0 0 10 0 0 97.29 18.49 1.03 0.02168 0.02457 19 5 1 4 0 2522.020 21.88 15.00 18.49 999.00 -9.0 -9.00 -565 -408 -259 -291 88 467 703 289 394 443 204 81 -65 -84 -195 -76 -36 18 34 99 340 109 195 517 238 378 419 -257 -270 -204 -317 -267 126 -9 -18 21 129 -108 -383 -364 62 48 79 405 124 158 178 197 -123 -446 -791 -684 -774 -511 -371 -444 -158 140 194 150 275 366 156 1406 340 231 89 -234 -389 -416 8 -38 90 -169 -183 -173 -94 -350 -435 -198 -492 -407 -301 -100 -99 -286 -215 -62 79 126 295 347 92 236 286 403 -239 -320 -441 -459 -349 -285 -349 -289 -374 -370 -169 -215 -156 -243 -289 97 355 533 647 803 680 232 368 130 248 241 243 -35 387 230 128 286 137 -170 -342 -65 -305 -410 -89 -159 -379 95 182 134 496 408 352 364 -21 -269 -429 -342 -229 900000 -550 -405 -250 -292 91 487 744 309 419 465 212 83 -65 -83 -194 -76 -37 19 37 107 367 112 199 530 246 389 428 -275 -280 -205 -316 -269 129 -9 -18 22 132 -110 -384 -384 65 48 81 415 128 163 182 198 -128 -455 -785 -665 -750 -503 -376 -438 -158 140 194 150 276 368 157 1398 338 226 90 -236 -388 -411 8 -37 90 -163 -176 -174 -92 -340 -421 -192 -481 -401 -298 -94 -95 -276 -207 -60 76 122 290 345 92 236 281 389 -227 -312 -422 -436 -334 -265 -337 -286 -375 -368 -165 -208 -151 -238 -288 98 361 545 665 828 703 240 374 131 246 236 239 -35 383 228 127 283 136 -167 -333 -62 -288 -387 -84 -154 -376 95 184 137 508 399 347 359 -21 -260 -427 -334 -222 900000