File name: Pandora204s1_BoulderCO-NCAR_20220502_L2Fit_fwvt1c3d20210826p1-8.txt File generation date: 20250127T130946.5Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c3p1-8 Local principal investigator: --- Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 204 Spectrometer number: 1 Processing software version used: BlickP v1.8.70 Instrument operation file used: Pandora204_OF_v2d20210322.txt Instrument calibration file used: Pandora204s1_CF_v3d20210826.txt Level 1 file used: Pandora204s1_BoulderCO-NCAR_20220502_L1_smca1c3d20210826p1-8.txt Full location name: National Center for Atmospheric Research Short location name: BoulderCO-NCAR Country of location: United States Location latitude [deg]: 40.0375 Location longitude [deg]: -105.2420 Location altitude [m]: 1616 Local noon date: 20220502 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, radiometric temperature correction, matrix method stray light correction (replaced by simple method) Data caveats: New Fieldcal for early data (starting from 20210826) First and last pixel inside fitting window: 1655 1804 Nominal wavelengths inside fitting window [nm]: 492.0991 492.2198 492.3406 492.4613 492.5820 492.7027 492.8233 492.9440 493.0646 493.1852 493.3058 493.4264 493.5470 493.6675 493.7881 493.9086 494.0291 494.1496 494.2701 494.3905 494.5109 494.6314 494.7518 494.8722 494.9925 495.1129 495.2332 495.3535 495.4738 495.5941 495.7144 495.8346 495.9549 496.0751 496.1953 496.3155 496.4357 496.5558 496.6760 496.7961 496.9162 497.0363 497.1563 497.2764 497.3964 497.5164 497.6364 497.7564 497.8764 497.9963 498.1163 498.2362 498.3561 498.4760 498.5959 498.7157 498.8355 498.9554 499.0752 499.1950 499.3147 499.4345 499.5542 499.6739 499.7936 499.9133 500.0330 500.1526 500.2723 500.3919 500.5115 500.6311 500.7506 500.8702 500.9897 501.1092 501.2287 501.3482 501.4677 501.5871 501.7066 501.8260 501.9454 502.0648 502.1841 502.3035 502.4228 502.5421 502.6614 502.7807 502.9000 503.0192 503.1384 503.2577 503.3769 503.4960 503.6152 503.7344 503.8535 503.9726 504.0917 504.2108 504.3298 504.4489 504.5679 504.6869 504.8059 504.9249 505.0439 505.1628 505.2817 505.4006 505.5195 505.6384 505.7573 505.8761 505.9949 506.1138 506.2325 506.3513 506.4701 506.5888 506.7075 506.8263 506.9449 507.0636 507.1823 507.3009 507.4195 507.5382 507.6567 507.7753 507.8939 508.0124 508.1309 508.2494 508.3679 508.4864 508.6049 508.7233 508.8417 508.9601 509.0785 509.1969 509.3152 509.4336 509.5519 509.6702 509.7885 509.9067 --------------------------------------------------------------------------------------- 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 20220502T162730.1Z 8157.685765 152 1 32.31 2 40.85 115.95 53.09 92.20 0.00 1 0.00 1 0 15 3.941e-03 3.939e-03 1.368e-03 1.363e-03 1.101707e+03 7.421807e+01 9.249384e+01 -6.000000e+00 2.046142e+02 274.03 -2.00 20.00 -2.00 505.27 0.00e+00 6.229661e-04 3.611937e-05 3.558576e-05 -6.000000e+00 1.067485e-04 274.03 -2.00 20.00 -2.00 500.40 0.00e+00 1.115674e-01 2.678682e-02 8.666766e-03 -6.000000e+00 7.762547e-02 229.05 -2.00 3.45 -2.00 502.01 0.00e+00 1.321 0.000 489.00 513.00 1 8.0223e+00 2.0372e-03 1.9190e-03 -6.0000e+00 5.9148e-03 1.3427e-02 5.3957e-04 2.1458e-04 -6.0000e+00 1.5647e-03 5.4119e-04 8.1877e-04 1.1977e-04 1.7290e-05 -6.0000e+00 3.5349e-04 2.9064e-03 -7.9450e-06 12 9 1 12 1 1 99.99 18.33 1.55 0.00291 0.00859 12 4 1 4 0 2471.210 21.27 15.01 18.33 7.59 6.7 790.34 -507 -741 34 -85 464 560 850 1024 622 480 401 -38 -396 -227 -632 -365 -112 -39 -277 76 510 146 253 319 365 477 508 -170 -552 -135 -636 -314 -33 112 -2 296 -186 -2 -346 -69 -110 -125 -25 383 192 488 367 305 -224 -419 -626 -1075 -775 -350 -212 -216 -103 54 170 244 278 309 240 472 67 128 9 -103 -402 -165 -174 -271 -5 -159 -300 -385 -329 -479 -586 -323 -557 -526 -28 -45 -213 108 -184 31 -312 2 -116 595 332 77 433 553 67 -24 -554 -850 -614 -755 -125 -491 -394 -25 -364 -294 -24 -241 -222 -19 232 483 438 951 418 673 298 488 169 446 427 -184 -82 272 -118 294 814 6 -148 -155 -194 -446 -89 51 -604 -128 273 179 89 541 471 399 402 -19 -244 -153 -401 -539 -491 -737 35 -90 472 580 893 1079 653 497 409 -38 -419 -237 -659 -383 -112 -41 -293 80 539 154 268 339 389 507 537 -178 -561 -140 -656 -307 -33 116 -2 315 -197 -2 -356 -71 -113 -129 -26 402 203 516 385 315 -228 -415 -602 -1076 -768 -350 -206 -217 -105 55 174 248 283 317 247 484 68 128 9 -101 -388 -157 -164 -257 -4 -155 -295 -375 -314 -449 -545 -299 -521 -497 -27 -43 -207 105 -180 30 -305 2 -114 594 338 79 435 546 65 -22 -513 -775 -557 -700 -120 -488 -399 -25 -361 -286 -23 -235 -220 -19 236 495 451 978 434 696 306 492 168 436 416 -182 -82 269 -117 289 794 6 -144 -149 -182 -416 -83 48 -586 -126 271 180 90 545 450 384 387 -18 -242 -148 -379 -510 SQ 20220502T163154.0Z 8157.688819 155 1 48.91 2 40.10 117.10 52.26 92.90 0.00 1 0.00 1 0 15 3.919e-03 3.955e-03 1.092e-03 1.087e-03 1.166988e+03 5.997640e+01 8.970617e+01 -6.000000e+00 2.034704e+02 274.03 -2.00 20.00 -2.00 505.27 0.00e+00 5.206547e-04 2.890641e-05 3.106101e-05 -6.000000e+00 1.061519e-04 274.03 -2.00 20.00 -2.00 500.31 0.00e+00 3.987948e-02 2.147438e-02 1.007580e-02 -6.000000e+00 7.719184e-02 229.05 -2.00 3.45 -2.00 501.93 0.00e+00 1.306 0.000 489.00 513.00 1 7.8067e+00 1.6368e-03 1.9031e-03 -6.0000e+00 5.8817e-03 1.5896e-02 4.3036e-04 2.4115e-04 -6.0000e+00 1.5560e-03 6.7705e-04 6.0799e-04 9.4677e-05 1.5289e-05 -6.0000e+00 3.5152e-04 2.9235e-03 -8.3485e-06 11 8 0 10 0 0 99.97 18.35 1.58 0.00292 0.00714 41 9 1 4 0 1192.740 21.27 15.00 18.35 7.76 6.7 791.62 -821 -522 -331 -223 394 805 675 946 541 628 235 45 -323 -112 -487 -404 -146 -76 -160 460 626 203 556 98 379 289 584 -241 -220 -419 -660 -520 -3 4 -217 262 -146 -134 -480 -236 -331 -70 174 176 580 464 426 250 -18 -549 -530 -1064 -624 -510 -200 -97 5 192 196 363 362 235 113 573 -184 464 -119 -11 -565 -259 -250 -613 159 -125 16 -410 30 -457 -598 -462 -464 -620 -139 70 -283 -64 -125 8 -260 74 -126 339 142 322 331 322 -9 -293 -469 -699 -620 -614 -141 -372 -330 -109 -134 -338 32 -255 -288 152 136 475 563 896 658 558 147 386 70 302 462 -102 70 223 227 164 734 32 -50 -54 -201 -499 -194 51 -238 14 275 139 5 523 356 428 171 80 -404 -168 -442 -473 -795 -516 -340 -237 424 880 752 1057 602 687 254 48 -341 -116 -506 -422 -156 -83 -167 481 653 212 580 103 399 304 609 -249 -236 -434 -679 -539 -4 4 -230 276 -152 -138 -488 -238 -335 -71 179 182 604 484 441 256 -18 -576 -538 -1060 -614 -509 -205 -96 5 194 198 364 364 238 115 579 -186 456 -115 -10 -538 -259 -249 -617 150 -120 16 -394 28 -453 -589 -453 -458 -579 -130 66 -271 -61 -121 8 -251 72 -123 335 143 324 329 314 -8 -274 -428 -627 -555 -560 -132 -365 -330 -108 -131 -325 31 -245 -281 150 136 479 571 909 672 570 149 384 69 291 444 -99 68 217 221 159 706 31 -48 -51 -187 -458 -177 47 -226 13 269 137 5 519 356 430 172 80 -396 -160 -412 -440