File name: Pandora63s1_LaPorteTX_20211127_L2Fit_fwvt1c2d20210924p1-8.txt File generation date: 20250514T162006.0Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c2p1-8 Local principal investigator: Tom Hanisco Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 63 Spectrometer number: 1 Processing software version used: BlickP v1.8.75 Instrument operation file used: Pandora63_OF_v2d20210219.txt Instrument calibration file used: Pandora63s1_CF_v2d20210924.txt Level 1 file used: Pandora63s1_LaPorteTX_20211127_L1_smca1c2d20210924p1-8.txt Full location name: University Of Houston Trailer Short location name: LaPorteTX Country of location: United States Location latitude [deg]: 29.6721 Location longitude [deg]: -95.0647 Location altitude [m]: 22 Local noon date: 20211127 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: None First and last pixel inside fitting window: 1555 1703 Nominal wavelengths inside fitting window [nm]: 492.1160 492.2379 492.3598 492.4817 492.6035 492.7254 492.8472 492.9690 493.0908 493.2126 493.3343 493.4561 493.5778 493.6995 493.8212 493.9428 494.0645 494.1861 494.3078 494.4294 494.5510 494.6725 494.7941 494.9156 495.0371 495.1586 495.2801 495.4016 495.5231 495.6445 495.7659 495.8873 496.0087 496.1301 496.2514 496.3728 496.4941 496.6154 496.7367 496.8580 496.9792 497.1005 497.2217 497.3429 497.4641 497.5852 497.7064 497.8275 497.9487 498.0698 498.1908 498.3119 498.4330 498.5540 498.6750 498.7960 498.9170 499.0380 499.1589 499.2799 499.4008 499.5217 499.6426 499.7634 499.8843 500.0051 500.1260 500.2468 500.3675 500.4883 500.6091 500.7298 500.8505 500.9712 501.0919 501.2126 501.3332 501.4538 501.5745 501.6951 501.8156 501.9362 502.0568 502.1773 502.2978 502.4183 502.5388 502.6592 502.7797 502.9001 503.0205 503.1409 503.2613 503.3817 503.5020 503.6223 503.7427 503.8630 503.9832 504.1035 504.2237 504.3440 504.4642 504.5844 504.7045 504.8247 504.9448 505.0650 505.1851 505.3052 505.4252 505.5453 505.6653 505.7854 505.9054 506.0253 506.1453 506.2653 506.3852 506.5051 506.6250 506.7449 506.8648 506.9846 507.1045 507.2243 507.3441 507.4639 507.5836 507.7034 507.8231 507.9428 508.0625 508.1822 508.3019 508.4215 508.5412 508.6608 508.7804 508.8999 509.0195 509.1390 509.2586 509.3781 509.4976 509.6170 509.7365 509.8559 509.9754 --------------------------------------------------------------------------------------- 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 101-249: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 250-398: 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 20211127T192145.0Z 8001.806771 468 1 8.99 2 53.94 201.36 92.58 285.98 0.00 1 0.00 1 0 15 5.268e-03 5.256e-03 9.891e-04 9.880e-04 2.852631e+03 6.038464e+01 1.916989e+02 -6.000000e+00 2.970933e+02 287.67 -2.00 20.00 -2.00 505.28 0.00e+00 5.360324e-04 2.752354e-05 3.053441e-05 -6.000000e+00 1.496950e-04 287.67 -2.00 20.00 -2.00 500.54 0.00e+00 -2.961293e-02 1.927426e-02 2.230146e-02 -6.000000e+00 1.033614e-01 224.74 -2.00 3.24 -2.00 502.12 0.00e+00 1.694 0.000 489.00 513.00 1 5.7082e+00 1.4803e-03 3.1421e-03 -6.0000e+00 7.9425e-03 1.7255e-02 3.8120e-04 5.1912e-04 -6.0000e+00 2.0536e-03 5.0632e-03 -7.2518e-04 9.3289e-05 2.1655e-05 -6.0000e+00 5.1125e-04 -2.3133e-04 5.3244e-06 12 9 9 12 1 1 97.16 18.17 0.10 -0.00023 -0.00526 7 10 1 4 0 1101.560 21.88 15.00 18.17 20.37 8.0 915.70 -1163 -732 -506 -223 436 1029 832 889 512 386 -87 -197 -459 -735 -867 -746 -203 248 128 275 328 421 874 578 483 519 339 -353 -749 -671 -1138 -514 212 274 -38 179 70 -258 -247 10 -153 70 528 555 869 783 660 185 -91 -359 -611 -827 -671 -172 40 122 320 441 218 305 403 550 602 258 208 -20 -138 -454 -657 -417 -312 -431 76 -79 -405 -466 -588 -566 -790 -605 -995 -778 -555 -218 -510 -225 88 -14 208 180 592 551 1230 432 400 93 -409 -609 -844 -1042 -701 -295 -42 -142 -240 -267 -365 -316 -132 -311 388 292 634 744 1047 1063 779 645 555 303 198 533 200 235 229 327 199 435 192 -188 -270 -640 -830 -489 -399 -492 -114 82 320 180 484 562 538 305 -141 -308 -725 -510 -763 -1134 -721 -507 -227 446 1060 864 926 532 398 -89 -201 -465 -742 -872 -754 -207 255 134 287 342 437 909 604 504 541 352 -364 -762 -672 -1136 -517 216 284 -39 186 73 -266 -253 10 -156 71 543 575 901 809 676 189 -92 -357 -601 -804 -654 -170 40 124 325 449 221 310 409 560 612 262 209 -19 -137 -449 -645 -408 -305 -423 75 -78 -401 -457 -571 -546 -764 -586 -970 -760 -546 -215 -504 -222 86 -14 205 178 592 553 1232 431 395 90 -396 -582 -801 -988 -671 -287 -41 -142 -240 -265 -360 -311 -130 -309 388 293 636 750 1053 1074 788 650 554 300 194 523 197 232 226 322 196 427 188 -184 -261 -615 -797 -469 -386 -481 -112 81 318 179 482 561 537 304 -140 -303 -705 -492 -739 SQ 20211127T193121.1Z 8001.813439 471 1 3.24 2 54.74 203.93 94.53 287.13 0.00 1 0.00 1 0 15 5.962e-03 5.939e-03 2.586e-03 2.583e-03 2.918314e+03 1.579610e+02 2.032319e+02 -6.000000e+00 3.362090e+02 287.67 -2.00 20.00 -2.00 505.28 0.00e+00 5.895247e-04 7.193460e-05 2.896245e-05 -6.000000e+00 1.694100e-04 287.67 -2.00 20.00 -2.00 500.54 0.00e+00 -5.067325e-02 5.040985e-02 2.118963e-02 -6.000000e+00 1.170364e-01 224.74 -2.00 3.24 -2.00 502.12 0.00e+00 1.727 0.000 489.00 513.00 1 4.9682e+00 3.8704e-03 3.1314e-03 -6.0000e+00 8.9923e-03 1.4993e-02 9.9709e-04 5.1188e-04 -6.0000e+00 2.3267e-03 1.0569e-02 -2.9856e-04 2.4319e-04 2.3121e-05 -6.0000e+00 5.7882e-04 -1.1370e-03 -2.5403e-05 12 9 9 12 1 1 999.00 18.17 0.14 -0.00114 -0.00321 1 7 2 4 0 1530.830 21.88 15.00 18.17 20.85 7.9 917.87 -1099 -875 -298 -362 706 433 1215 1026 315 612 -412 -544 -650 -521 -1005 -651 -623 369 388 359 357 496 1013 410 645 595 251 -198 -600 -683 -1010 -584 189 296 -283 256 -367 291 -274 99 -475 530 396 611 578 613 305 282 -74 -545 -605 -783 -227 -578 221 100 638 671 405 395 247 522 301 239 135 164 34 -358 -340 -740 -106 -594 646 -286 -397 -962 -586 -905 -980 -677 -1018 -892 -709 -113 -523 -86 324 -331 539 511 1477 489 1308 443 572 -394 232 -716 -1022 -1366 -402 -375 -581 -200 -394 -33 -538 -34 -563 -557 226 459 542 798 1336 963 1202 520 646 134 164 351 520 191 436 265 -74 334 449 21 -606 -181 -1331 -270 -471 -305 -434 -57 36 430 514 372 -1 518 319 -210 -562 -900 -517 -1070 -864 -298 -367 722 447 1257 1065 328 630 -423 -554 -657 -524 -1011 -656 -636 380 403 373 370 516 1050 427 672 617 260 -204 -608 -683 -1009 -587 193 306 -294 265 -380 298 -280 100 -486 542 407 631 598 633 313 288 -74 -543 -595 -764 -221 -570 221 101 647 680 411 400 252 531 307 242 136 164 33 -353 -334 -724 -104 -583 636 -284 -394 -946 -571 -878 -950 -656 -992 -872 -696 -111 -516 -85 320 -327 531 506 1466 491 1309 442 565 -386 224 -687 -973 -1301 -384 -366 -577 -200 -394 -33 -531 -33 -555 -554 226 461 545 804 1344 973 1213 524 644 132 162 345 512 188 429 261 -73 328 440 20 -588 -174 -1282 -260 -457 -298 -429 -56 36 428 512 372 -1 516 317 -207 -547 -871 -501