File name: Pandora184s1_CapeElizabethME_20250305_L2Fit_fwvt1c4d20221222p1-8.txt File generation date: 20250306T051509.5Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c4p1-8 Local principal investigator: Lukas Valin Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 184 Spectrometer number: 1 Processing software version used: BlickP v1.8.74 Instrument operation file used: Pandora184_OF_v5d20201127.txt Instrument calibration file used: Pandora184s1_CF_v4d20221222.txt Level 1 file used: Pandora184s1_CapeElizabethME_20250305_L1_smca1c4d20221222p1-8.txt Full location name: CEPTL - Cape Elizabeth Two Lights (State Park) Maine Short location name: CapeElizabethME Country of location: United States Location latitude [deg]: 43.5610 Location longitude [deg]: -70.2073 Location altitude [m]: 24 Local noon date: 20250305 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: 1613 1762 Nominal wavelengths inside fitting window [nm]: 492.0524 492.1739 492.2953 492.4167 492.5381 492.6595 492.7809 492.9023 493.0236 493.1450 493.2663 493.3876 493.5089 493.6301 493.7514 493.8726 493.9938 494.1150 494.2362 494.3574 494.4785 494.5997 494.7208 494.8419 494.9630 495.0840 495.2051 495.3261 495.4471 495.5681 495.6891 495.8101 495.9310 496.0520 496.1729 496.2938 496.4147 496.5355 496.6564 496.7772 496.8980 497.0188 497.1396 497.2604 497.3811 497.5019 497.6226 497.7433 497.8640 497.9847 498.1053 498.2259 498.3466 498.4672 498.5878 498.7083 498.8289 498.9494 499.0699 499.1904 499.3109 499.4314 499.5518 499.6723 499.7927 499.9131 500.0335 500.1539 500.2742 500.3946 500.5149 500.6352 500.7555 500.8757 500.9960 501.1162 501.2364 501.3566 501.4768 501.5970 501.7172 501.8373 501.9574 502.0775 502.1976 502.3177 502.4377 502.5578 502.6778 502.7978 502.9178 503.0377 503.1577 503.2776 503.3975 503.5174 503.6373 503.7572 503.8771 503.9969 504.1167 504.2365 504.3563 504.4761 504.5958 504.7155 504.8353 504.9550 505.0747 505.1943 505.3140 505.4336 505.5532 505.6728 505.7924 505.9120 506.0315 506.1511 506.2706 506.3901 506.5096 506.6290 506.7485 506.8679 506.9873 507.1067 507.2261 507.3455 507.4648 507.5842 507.7035 507.8228 507.9420 508.0613 508.1806 508.2998 508.4190 508.5382 508.6574 508.7765 508.8957 509.0148 509.1339 509.2530 509.3721 509.4912 509.6102 509.7293 509.8483 509.9673 --------------------------------------------------------------------------------------- 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 20250305T112455.5Z 9195.475643 43 1 47.25 2 88.16 99.87 108.01 26.91 0.00 1 0.00 1 0 22 8.383e-03 8.207e-03 1.094e-03 1.088e-03 1.314194e+04 7.335664e+01 8.770084e+02 -6.000000e+00 4.425648e+02 274.29 -2.00 20.00 -2.00 505.46 0.00e+00 2.623914e-03 2.924765e-05 1.509172e-04 -6.000000e+00 2.287484e-04 274.29 -2.00 20.00 -2.00 501.05 0.00e+00 1.198022e+00 2.081848e-02 1.030139e-01 -6.000000e+00 1.648058e-01 225.45 -2.00 3.57 -2.00 502.56 0.00e+00 16.587 0.089 489.00 513.00 1 4.9418e+00 1.5837e-03 2.8431e-02 -6.0000e+00 1.2588e-02 -3.2555e-02 3.9943e-04 2.8661e-03 -6.0000e+00 3.2816e-03 1.1489e-03 3.1011e-05 9.3844e-05 1.1821e-04 -6.0000e+00 7.8635e-04 1.3051e-02 -1.2078e-04 12 8 8 10 0 0 98.96 22.46 3.44 0.01305 0.01327 22 6 1 4 0 2147.250 26.62 19.96 22.46 9.76 29.7 1075.93 -2484 -1529 -1166 -140 97 1072 1163 1335 972 883 376 -266 -834 -710 -1353 -956 -237 54 245 273 215 300 639 774 716 638 986 362 -300 -1224 -1167 -1393 -45 189 332 128 886 -160 505 -488 104 118 533 466 1525 1038 1444 652 -85 -615 -1213 -1543 -1712 -1225 -504 -181 436 605 844 714 1089 691 1258 715 708 415 415 -109 -970 -993 -861 -201 -660 34 -566 -529 -400 -846 -1394 -1051 -1289 -891 -1089 -424 -374 -218 -700 -144 -529 -113 454 1117 793 1021 661 985 -17 -737 -1241 -1535 -1483 -1010 -628 -273 -365 79 -95 -535 -310 -463 -312 439 687 880 1402 2189 1507 1037 328 655 194 406 667 450 401 543 829 462 523 110 -403 -442 -841 -1411 -601 -856 -128 -87 470 78 492 369 681 311 648 20 -564 -1139 -851 -990 -2157 -1337 -1054 -131 93 983 1089 1264 924 831 351 -247 -766 -644 -1230 -872 -218 51 237 268 212 296 631 768 718 642 988 361 -294 -1171 -1098 -1323 -43 188 341 133 907 -164 509 -494 105 121 551 464 1522 1046 1443 650 -83 -596 -1212 -1512 -1668 -1203 -508 -178 437 612 853 722 1100 707 1288 736 722 419 413 -107 -955 -967 -833 -195 -649 33 -569 -528 -392 -817 -1340 -1003 -1239 -861 -1064 -416 -373 -218 -705 -143 -527 -113 453 1125 810 1031 653 937 -16 -671 -1111 -1362 -1324 -924 -600 -274 -379 82 -99 -553 -320 -459 -314 445 701 901 1436 2248 1583 1106 351 688 201 412 674 459 413 562 859 480 544 115 -418 -452 -856 -1445 -617 -902 -137 -94 518 88 529 401 742 341 706 21 -605 -1266 -936 -1098 SQ 20250305T114518.4Z 9195.489797 58 1 8.70 2 84.54 103.42 106.24 31.17 0.00 1 0.00 1 0 15 5.943e-03 5.907e-03 2.301e-03 2.298e-03 6.892715e+03 1.432882e+02 4.820477e+02 -6.000000e+00 3.137259e+02 274.30 -2.00 20.00 -2.00 505.34 0.00e+00 1.427058e-03 6.173718e-05 7.997041e-05 -6.000000e+00 1.622007e-04 274.30 -2.00 20.00 -2.00 500.67 0.00e+00 7.494192e-01 4.468813e-02 5.401632e-02 -6.000000e+00 1.169558e-01 225.45 -2.00 3.57 -2.00 502.23 0.00e+00 9.210 0.015 489.00 513.00 1 5.9180e+00 3.4086e-03 1.4199e-02 -6.0000e+00 8.9319e-03 -1.4427e-02 8.7348e-04 1.4773e-03 -6.0000e+00 2.3314e-03 1.3081e-03 1.5723e-03 2.0588e-04 6.9933e-05 -6.0000e+00 5.5743e-04 -2.3369e-03 -1.0909e-04 12 9 9 12 1 1 999.00 22.45 1.64 -0.00234 0.00857 2 4 1 4 0 2897.480 26.62 20.00 22.45 10.64 29.2 1079.52 -1427 -1346 -1123 -256 276 1028 1102 842 600 610 266 -857 -767 -463 -719 -546 157 21 746 549 23 -495 358 381 542 33 682 459 -496 -928 -808 -1087 180 246 -21 -456 513 137 329 103 127 754 -70 35 997 783 1104 576 20 -250 -570 -534 -1479 -688 -757 172 136 146 -239 696 905 95 893 723 94 544 614 -114 -603 -676 -220 148 -417 96 -123 -568 -183 -731 -838 -575 -888 -623 -598 -786 -163 68 60 -459 43 168 591 383 755 440 533 416 183 -200 -548 -1073 -586 -397 -598 -350 -347 107 202 -227 -182 -396 -568 352 328 462 702 1607 1100 662 33 481 139 524 859 -184 -48 701 707 -83 -35 -103 -324 -290 -492 -1237 -549 -563 -194 -155 162 249 188 239 688 241 303 -137 -574 -304 -692 -332 -1356 -1248 -1075 -253 269 1018 1113 862 616 619 267 -859 -756 -448 -695 -529 154 22 765 552 23 -506 363 388 555 35 696 465 -494 -929 -794 -1076 180 246 -22 -479 529 140 332 104 127 761 -73 36 1043 796 1151 597 21 -250 -554 -525 -1454 -678 -744 173 141 147 -241 694 903 97 902 731 95 557 619 -114 -599 -664 -214 144 -414 96 -125 -572 -181 -712 -809 -552 -860 -608 -587 -782 -164 67 59 -448 42 164 579 382 759 442 525 400 177 -190 -509 -987 -538 -373 -587 -346 -352 108 202 -226 -180 -397 -580 350 329 466 711 1625 1129 685 34 487 138 531 866 -183 -48 696 703 -83 -35 -103 -321 -291 -490 -1235 -548 -556 -196 -158 168 253 192 246 709 250 314 -141 -580 -309 -700 -336