File name: Pandora174s1_FairbanksAK_20220206_L2Fit_fwvt1c2d20210103p1-8.txt
File generation date: 20251118T235654.7Z
Data description: Level 2 spectral fitting results file
Data file version: fwvt1c2p1-8
Local principal investigator: Jingqiu Mao
Network principal investigator: Alexander Cede
Instrument type: Pandora
Instrument number: 174
Spectrometer number: 1
Processing software version used: BlickP v1.8.75
Instrument operation file used: Pandora174_OF_v4d20200215.txt
Instrument calibration file used: Pandora174s1_CF_v2d20210103.txt
Level 1 file used: Pandora174s1_FairbanksAK_20220206_L1_smca1c2d20210103p1-8.txt
Full location name: University of Alaska Fairbanks campus
Short location name: FairbanksAK
Country of location: USA
Location latitude [deg]: 64.8594
Location longitude [deg]: -147.8499
Location altitude [m]: 227
Local noon date: 20220206
Notes on s-number (L1 configuration): Corrections NOT applied although requested by the s-number are latency correction, matrix method stray light correction (replaced by simple method)
Data caveats: None
First and last pixel inside fitting window: 1650 1799
Nominal wavelengths inside fitting window [nm]: 492.0669 492.1881 492.3092 492.4303 492.5514 492.6725 492.7936 492.9146 493.0356 493.1567 493.2777 493.3986 493.5196 493.6406 493.7615 493.8824 494.0033 494.1242 494.2450 494.3659 494.4867 494.6075 494.7283 494.8491 494.9699 495.0906 495.2114 495.3321 495.4528 495.5735 495.6941 495.8148 495.9354 496.0560 496.1766 496.2972 496.4177 496.5383 496.6588 496.7793 496.8998 497.0203 497.1408 497.2612 497.3816 497.5020 497.6224 497.7428 497.8632 497.9835 498.1038 498.2241 498.3444 498.4647 498.5850 498.7052 498.8254 498.9456 499.0658 499.1860 499.3061 499.4263 499.5464 499.6665 499.7866 499.9067 500.0267 500.1467 500.2668 500.3868 500.5067 500.6267 500.7467 500.8666 500.9865 501.1064 501.2263 501.3461 501.4660 501.5858 501.7056 501.8254 501.9452 502.0650 502.1847 502.3044 502.4241 502.5438 502.6635 502.7832 502.9028 503.0224 503.1420 503.2616 503.3812 503.5007 503.6203 503.7398 503.8593 503.9788 504.0982 504.2177 504.3371 504.4565 504.5759 504.6953 504.8147 504.9340 505.0534 505.1727 505.2920 505.4112 505.5305 505.6497 505.7690 505.8882 506.0074 506.1265 506.2457 506.3648 506.4839 506.6030 506.7221 506.8412 506.9602 507.0793 507.1983 507.3173 507.4363 507.5552 507.6742 507.7931 507.9120 508.0309 508.1498 508.2686 508.3875 508.5063 508.6251 508.7439 508.8627 508.9814 509.1002 509.2189 509.3376 509.4563 509.5749 509.6936 509.8122 509.9308
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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
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SQ 20220206T224313.0Z 8072.946678 200 1 23.19 2 80.58 189.21 69.56 115.15 0.00 1 0.00 1 0 8 4.906e-03 4.871e-03 7.626e-04 7.618e-04 7.703151e+02 3.698743e+01 6.803112e+01 -6.000000e+00 2.344848e+02 256.73 -2.00 20.00 -2.00 505.27 0.00e+00 4.614455e-04 1.933744e-05 2.226288e-05 -6.000000e+00 1.271749e-04 256.73 -2.00 20.00 -2.00 500.51 0.00e+00 8.001800e-01 1.470773e-02 8.584692e-03 -6.000000e+00 9.581931e-02 219.54 -2.00 4.56 -2.00 502.10 0.00e+00 5.825 0.005 489.00 513.00 1 1.0283e+01 1.1157e-03 8.1576e-03 -6.0000e+00 7.2690e-03 4.4665e-03 2.9520e-04 4.8509e-04 -6.0000e+00 1.9267e-03 2.8109e-05 3.3843e-05 6.4259e-05 1.4189e-05 -6.0000e+00 4.2363e-04 1.3291e-02 -1.0791e-04 12 9 9 12 1 1 99.76 20.87 0.90 0.01329 0.01353 14 7 1 4 0 1533.890 24.35 20.00 20.87 7.24 22.7 971.91 -1117 -1000 -656 -259 33 609 788 807 614 292 207 18 -270 -627 -622 -426 -316 112 156 296 349 382 251 549 519 729 608 310 -528 -654 -790 -857 -577 259 275 394 315 -1 -266 -185 -119 66 134 430 544 585 610 647 219 -239 -619 -1113 -1114 -942 -433 -215 199 123 75 103 247 341 382 699 523 344 156 129 -361 -570 -284 -169 180 301 71 -54 -113 -332 -806 -865 -529 -576 -327 -363 -165 -310 -55 -231 -44 -41 162 429 707 545 594 574 255 -236 -663 -1002 -990 -719 -118 115 156 126 -312 -637 -393 -408 -195 160 257 332 472 732 857 747 407 561 -17 26 60 268 306 340 384 130 479 366 -77 -219 -374 -619 -755 -367 -134 -14 298 226 129 222 298 525 485 218 -229 -792 -913 -713 -1080 -963 -653 -261 34 625 807 835 635 298 213 18 -270 -635 -627 -430 -318 115 162 310 366 400 259 565 538 754 627 324 -539 -656 -782 -853 -586 267 287 412 325 -1 -275 -189 -121 68 137 443 566 609 631 659 224 -239 -614 -1082 -1092 -913 -431 -217 201 125 76 104 250 346 390 710 527 348 155 127 -353 -561 -277 -165 174 296 71 -53 -109 -323 -780 -835 -513 -555 -316 -354 -162 -309 -55 -230 -44 -40 160 429 705 546 598 570 249 -230 -630 -956 -944 -683 -116 115 156 126 -307 -628 -383 -402 -192 160 259 332 475 738 868 756 409 564 -17 26 59 264 304 337 380 129 472 362 -76 -212 -363 -595 -724 -358 -131 -14 295 226 129 224 297 526 486 218 -228 -784 -887 -692
SQ 20220206T225355.6Z 8072.954115 203 1 49.15 2 80.78 191.82 68.53 117.69 0.00 1 0.00 1 0 8 4.846e-03 4.804e-03 1.041e-04 1.040e-04 7.329241e+02 5.036983e+00 6.338583e+01 -6.000000e+00 2.315944e+02 256.73 -2.00 20.00 -2.00 505.28 0.00e+00 5.090082e-04 2.640990e-06 2.474387e-05 -6.000000e+00 1.256073e-04 256.73 -2.00 20.00 -2.00 500.55 0.00e+00 7.985580e-01 2.004498e-03 8.823758e-03 -6.000000e+00 9.463432e-02 219.54 -2.00 4.56 -2.00 502.13 0.00e+00 5.941 0.006 489.00 513.00 1 7.1305e+00 1.5205e-04 8.3275e-03 -6.0000e+00 7.1791e-03 -1.2262e-03 4.0189e-05 4.9278e-04 -6.0000e+00 1.9028e-03 6.4720e-04 -9.7144e-05 8.7865e-06 1.3930e-05 -6.0000e+00 4.1841e-04 1.2470e-02 -9.8759e-05 12 8 8 10 0 0 75.19 20.89 0.93 0.01247 0.01180 847 171 1 4 0 58.010 24.46 20.00 20.89 6.88 22.5 969.51 -1249 -1038 -537 -169 179 494 684 704 524 333 283 3 -384 -544 -634 -573 -352 45 235 302 402 338 334 506 558 616 725 371 -391 -670 -701 -744 -377 163 288 307 199 21 -157 -210 -149 -9 210 432 600 641 610 548 253 -312 -745 -1081 -1228 -946 -494 -163 133 206 113 165 268 420 551 590 418 266 156 83 -283 -558 -398 -183 32 203 159 -48 -148 -312 -632 -703 -517 -493 -474 -315 -183 -120 -184 -218 -175 -70 154 517 622 553 579 534 279 -237 -750 -1012 -961 -761 -217 152 116 83 -242 -555 -581 -362 -172 130 345 451 564 724 863 690 464 337 153 -43 164 199 214 345 353 305 514 384 30 -168 -327 -613 -691 -436 -211 -38 143 156 164 264 369 492 463 184 -321 -706 -846 -837 -1195 -1009 -529 -170 180 506 701 729 542 340 290 4 -384 -547 -635 -577 -354 45 244 311 414 348 344 523 580 641 750 381 -399 -672 -693 -740 -375 166 296 318 207 21 -160 -212 -150 -9 215 449 617 661 624 563 256 -314 -742 -1053 -1184 -920 -485 -163 135 211 115 167 273 430 557 595 425 267 157 82 -279 -542 -390 -177 32 201 157 -47 -145 -305 -614 -682 -505 -478 -462 -309 -179 -118 -182 -216 -173 -70 154 514 629 562 581 527 276 -229 -721 -957 -908 -731 -211 151 116 83 -241 -545 -566 -355 -172 129 349 459 568 731 876 701 468 340 152 -42 163 197 212 342 350 302 507 380 30 -165 -317 -589 -662 -426 -207 -39 143 157 166 268 370 497 469 185 -322 -700 -825 -816