File name: Pandora251s1_Nainital-ARIES_20250818_L2Fit_fnvh3c5d20240923p1-8.txt File generation date: 20250819T065848.6Z Data description: Level 2 spectral fitting results file Data file version: fnvh3c5p1-8 Local principal investigator: Manish Naja Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 251 Spectrometer number: 1 Processing software version used: BlickP v1.8.75 Instrument operation file used: Pandora251_OF_v2d20221122.txt Instrument calibration file used: Pandora251s1_CF_v5d20240923.txt Level 1 file used: Pandora251s1_Nainital-ARIES_20250818_L1_smca1c5d20240923p1-8.txt Full location name: Aryabhatta Research Institute of Observational Sciences (ARIES) Short location name: Nainital-ARIES Country of location: India Location latitude [deg]: 29.3588 Location longitude [deg]: 79.4583 Location altitude [m]: 1978 Local noon date: 20250818 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: Modification of session 4, but HCHO with MLE. First and last pixel inside fitting window: 1158 1596 Nominal wavelengths inside fitting window [nm]: 435.0990 435.2275 435.3561 435.4846 435.6131 435.7415 435.8700 435.9985 436.1269 436.2553 436.3837 436.5121 436.6405 436.7688 436.8972 437.0255 437.1538 437.2821 437.4104 437.5387 437.6669 437.7952 437.9234 438.0516 438.1798 438.3080 438.4361 438.5643 438.6924 438.8205 438.9486 439.0767 439.2048 439.3328 439.4609 439.5889 439.7169 439.8449 439.9729 440.1008 440.2288 440.3567 440.4846 440.6125 440.7404 440.8683 440.9962 441.1240 441.2518 441.3796 441.5074 441.6352 441.7630 441.8907 442.0185 442.1462 442.2739 442.4016 442.5293 442.6569 442.7846 442.9122 443.0398 443.1674 443.2950 443.4225 443.5501 443.6776 443.8051 443.9327 444.0601 444.1876 444.3151 444.4425 444.5699 444.6974 444.8248 444.9521 445.0795 445.2069 445.3342 445.4615 445.5888 445.7161 445.8434 445.9706 446.0979 446.2251 446.3523 446.4795 446.6067 446.7339 446.8610 446.9882 447.1153 447.2424 447.3695 447.4966 447.6236 447.7507 447.8777 448.0047 448.1317 448.2587 448.3856 448.5126 448.6395 448.7664 448.8933 449.0202 449.1471 449.2740 449.4008 449.5276 449.6544 449.7812 449.9080 450.0348 450.1615 450.2883 450.4150 450.5417 450.6684 450.7950 450.9217 451.0483 451.1750 451.3016 451.4282 451.5547 451.6813 451.8079 451.9344 452.0609 452.1874 452.3139 452.4404 452.5668 452.6933 452.8197 452.9461 453.0725 453.1988 453.3252 453.4516 453.5779 453.7042 453.8305 453.9568 454.0830 454.2093 454.3355 454.4617 454.5879 454.7141 454.8403 454.9665 455.0926 455.2187 455.3448 455.4709 455.5970 455.7231 455.8491 455.9751 456.1012 456.2272 456.3531 456.4791 456.6051 456.7310 456.8569 456.9828 457.1087 457.2346 457.3605 457.4863 457.6121 457.7379 457.8637 457.9895 458.1153 458.2410 458.3668 458.4925 458.6182 458.7439 458.8695 458.9952 459.1208 459.2464 459.3720 459.4976 459.6232 459.7488 459.8743 459.9998 460.1253 460.2508 460.3763 460.5018 460.6272 460.7527 460.8781 461.0035 461.1289 461.2542 461.3796 461.5049 461.6302 461.7555 461.8808 462.0061 462.1314 462.2566 462.3818 462.5070 462.6322 462.7574 462.8826 463.0077 463.1329 463.2580 463.3831 463.5082 463.6332 463.7583 463.8833 464.0083 464.1333 464.2583 464.3833 464.5082 464.6332 464.7581 464.8830 465.0079 465.1328 465.2576 465.3825 465.5073 465.6321 465.7569 465.8817 466.0065 466.1312 466.2559 466.3807 466.5054 466.6300 466.7547 466.8794 467.0040 467.1286 467.2532 467.3778 467.5024 467.6269 467.7515 467.8760 468.0005 468.1250 468.2495 468.3739 468.4984 468.6228 468.7472 468.8716 468.9960 469.1203 469.2447 469.3690 469.4933 469.6176 469.7419 469.8662 469.9904 470.1147 470.2389 470.3631 470.4873 470.6114 470.7356 470.8597 470.9839 471.1080 471.2320 471.3561 471.4802 471.6042 471.7282 471.8522 471.9762 472.1002 472.2242 472.3481 472.4720 472.5960 472.7199 472.8437 472.9676 473.0914 473.2153 473.3391 473.4629 473.5867 473.7104 473.8342 473.9579 474.0816 474.2053 474.3290 474.4527 474.5763 474.7000 474.8236 474.9472 475.0708 475.1943 475.3179 475.4414 475.5650 475.6885 475.8119 475.9354 476.0589 476.1823 476.3057 476.4291 476.5525 476.6759 476.7993 476.9226 477.0459 477.1692 477.2925 477.4158 477.5391 477.6623 477.7855 477.9088 478.0320 478.1551 478.2783 478.4014 478.5246 478.6477 478.7708 478.8939 479.0169 479.1400 479.2630 479.3860 479.5090 479.6320 479.7550 479.8779 480.0008 480.1238 480.2467 480.3695 480.4924 480.6153 480.7381 480.8609 480.9837 481.1065 481.2293 481.3520 481.4748 481.5975 481.7202 481.8429 481.9655 482.0882 482.2108 482.3334 482.4561 482.5786 482.7012 482.8238 482.9463 483.0688 483.1913 483.3138 483.4363 483.5587 483.6812 483.8036 483.9260 484.0484 484.1708 484.2931 484.4155 484.5378 484.6601 484.7824 484.9047 485.0269 485.1492 485.2714 485.3936 485.5158 485.6380 485.7601 485.8823 486.0044 486.1265 486.2486 486.3707 486.4927 486.6148 486.7368 486.8588 486.9808 487.1028 487.2247 487.3467 487.4686 487.5905 487.7124 487.8343 487.9561 488.0780 488.1998 488.3216 488.4434 488.5652 488.6869 488.8087 488.9304 489.0521 489.1738 489.2955 489.4171 489.5388 489.6604 489.7820 489.9036 --------------------------------------------------------------------------------------- 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: Oxygen dimer slant column amount [moles squared per meter to the 5th], -9e99=fitting not successful Column 45: Independent uncertainty of oxygen dimer slant column amount [moles squared per meter to the 5th], -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 oxygen dimer slant column amount [moles squared per meter to the 5th], -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 47: Common uncertainty of oxygen dimer slant column amount [moles squared per meter to the 5th], -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 oxygen dimer slant column amount [moles squared per meter to the 5th], -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: Oxygen dimer effective temperature [K] Column 50: Independent uncertainty of oxygen dimer 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 oxygen dimer 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 oxygen dimer 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 oxygen dimer fitting wavelength [nm], -9=fitting not successful Column 54: Diffuse correction applied before fitting at effective fitting wavelength for oxygen dimer [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction Column 55: Ozone slant column amount [moles per square meter], -9e99=fitting not successful Column 56: 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 57: 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 58: 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 59: 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 60: Ozone effective temperature [K] Column 61: 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 62: 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 63: 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 64: Effective ozone fitting wavelength [nm], -9=fitting not successful Column 65: 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 66: Fitted Ring spectrum, -9e99=no fitting done or fitting not successful Column 67: Independent uncertainty of fitted Ring spectrum, -9=fitting not successful Column 68: Structured uncertainty of fitted Ring spectrum, -9=fitting not successful Column 69: Common uncertainty of fitted Ring spectrum, -9=fitting not successful Column 70: rms-based uncertainty of fitted Ring spectrum, -9=fitting not successful Column 71: Effective Ring fitting wavelength [nm], -9=fitting not done or not successful Column 72: Diffuse correction applied before fitting at effective Ring fitting wavelength [%], 0=no diffuse correction applied, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction Column 73: Lower limit used for wavelength scaling [nm] Column 74: Upper limit used for wavelength scaling [nm] Column 75: Order of smoothing polynomial Column 76: Smoothing polynomial coefficient, order 0 Column 77: Independent uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 78: Structured uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 79: Common uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 80: rms-based uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 81: Smoothing polynomial coefficient, order 1 Column 82: Independent uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 83: Structured uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 84: Common uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 85: rms-based uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 86: Smoothing polynomial coefficient, order 2 Column 87: Independent uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 88: Structured uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 89: Common uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 90: rms-based uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 91: Smoothing polynomial coefficient, order 3 Column 92: Independent uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 93: Structured uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 94: Common uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 95: rms-based uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 96: Smoothing polynomial coefficient, order 4 Column 97: Independent uncertainty of smoothing polynomial coefficient, order 4, -9=fitting not successful Column 98: Structured uncertainty of smoothing polynomial coefficient, order 4, -9=fitting not successful Column 99: Common uncertainty of smoothing polynomial coefficient, order 4, -9=fitting not successful Column 100: rms-based uncertainty of smoothing polynomial coefficient, order 4, -9=fitting not successful Column 101: Mean value of measured data inside fitting window [same units as measurements] Column 102: Offset polynomial coefficient, order 0 Column 103: Independent uncertainty of offset polynomial coefficient, order 0, -9=fitting not successful Column 104: Structured uncertainty of offset polynomial coefficient, order 0, -9=fitting not successful Column 105: Common uncertainty of offset polynomial coefficient, order 0, -9=fitting not successful Column 106: rms-based uncertainty of offset polynomial coefficient, order 0, -9=fitting not successful Column 107: Offset polynomial coefficient, order 1 Column 108: Independent uncertainty of offset polynomial coefficient, order 1, -9=fitting not successful Column 109: Structured uncertainty of offset polynomial coefficient, order 1, -9=fitting not successful Column 110: Common uncertainty of offset polynomial coefficient, order 1, -9=fitting not successful Column 111: rms-based uncertainty of offset polynomial coefficient, order 1, -9=fitting not successful Column 112: Wavelength change polynomial coefficient, order 0 Column 113: Independent uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 114: Structured uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 115: Common uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 116: rms-based uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 117: Wavelength change polynomial coefficient, order 1 Column 118: Independent uncertainty of wavelength change polynomial coefficient, order 1, -9=fitting not successful Column 119: Structured uncertainty of wavelength change polynomial coefficient, order 1, -9=fitting not successful Column 120: Common uncertainty of wavelength change polynomial coefficient, order 1, -9=fitting not successful Column 121: rms-based uncertainty of wavelength change polynomial coefficient, order 1, -9=fitting not successful Column 122: L1 based wavelength change coefficient, order 0, -9=no L1 wavelength change determination Column 123: L1 based wavelength change coefficient, order 1, -9=no L1 wavelength change determination Column 124: 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 125: 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 126: 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 127: 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 128: 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 129: 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 130: Atmospheric variability [%], 999=no atmospheric variability was determined Column 131: Wavelength effective temperature [°C], 999=no effective temperature given Column 132: Estimated average residual stray light level [%] (only valid for stray light correction methods 2 and higher) Column 133: Retrieved wavelength shift from L1 data [nm], -9=no wavelength change determination Column 134: Retrieved total wavelength shift [nm], -9=no wavelength change fitting Column 135: Number of bright count cycles Column 136: Number of dark count cycles Column 137: Effective position of filterwheel #1, 0=filterwheel not used, 1-9 are valid positions Column 138: Effective position of filterwheel #2, 0=filterwheel not used, 1-9 are valid positions Column 139: Sum over 2^i, 0=spectra were interpolated in time, 1=spectra are corrected for off-target signal Column 140: Integration time [ms] Column 141: Temperature at electronics board [°C], 999=no temperature signal Column 142: Spectrometer control temperature [°C], 999=no temperature signal Column 143: Auxiliary spectrometer temperature [°C], 999=no temperature signal Column 144: Temperature in head sensor [°C], 999=no temperature signal Column 145: Humidity in head sensor [%], -9=no humidity signal Column 146: Pressure in head sensor [hPa], -9=no pressure signal Columns 147-585: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 586-1024: 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 ---------------------------------------------------------------------------------------