File name: Pandora187s1_PittsburghPA_20220602_L2Fit_fwvt1c2d20210902p1-8.txt
File generation date: 20231128T224404.2Z
Data description: Level 2 spectral fitting results file
Data file version: fwvt1c2p1-8
Local principal investigator: Lukas Valin
Network principal investigator: Alexander Cede
Instrument type: Pandora
Instrument number: 187
Spectrometer number: 1
Processing software version used: BlickP v1.8.49
Instrument operation file used: Pandora187_OF_v4d20210517.txt
Instrument calibration file used: Pandora187s1_CF_v2d20210902.txt
Level 1 file used: Pandora187s1_PittsburghPA_20220602_L1_smca1c2d20210902p1-8.txt.bz2
Full location name: Pittsburgh, PA - Lawrenceville ACHD (USEPA AQS ID 42-003-0008)
Short location name: PittsburghPA
Country of location: United States
Location latitude [deg]: 40.4655
Location longitude [deg]: -79.9608
Location altitude [m]: 265
Local noon date: 20220602
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: 1607 1755
Nominal wavelengths inside fitting window [nm]: 492.1177 492.2395 492.3614 492.4832 492.6050 492.7267 492.8485 492.9702 493.0920 493.2137 493.3354 493.4570 493.5787 493.7003 493.8219 493.9435 494.0651 494.1867 494.3083 494.4298 494.5513 494.6728 494.7943 494.9158 495.0372 495.1587 495.2801 495.4015 495.5229 495.6442 495.7656 495.8869 496.0083 496.1296 496.2508 496.3721 496.4934 496.6146 496.7358 496.8570 496.9782 497.0994 497.2205 497.3416 497.4628 497.5839 497.7049 497.8260 497.9470 498.0681 498.1891 498.3101 498.4311 498.5520 498.6730 498.7939 498.9148 499.0357 499.1566 499.2775 499.3983 499.5191 499.6399 499.7607 499.8815 500.0023 500.1230 500.2437 500.3644 500.4851 500.6058 500.7265 500.8471 500.9677 501.0883 501.2089 501.3295 501.4500 501.5706 501.6911 501.8116 501.9321 502.0525 502.1730 502.2934 502.4139 502.5343 502.6546 502.7750 502.8953 503.0157 503.1360 503.2563 503.3766 503.4968 503.6171 503.7373 503.8575 503.9777 504.0979 504.2181 504.3382 504.4583 504.5784 504.6985 504.8186 504.9387 505.0587 505.1787 505.2987 505.4187 505.5387 505.6586 505.7786 505.8985 506.0184 506.1383 506.2581 506.3780 506.4978 506.6176 506.7374 506.8572 506.9770 507.0967 507.2165 507.3362 507.4559 507.5756 507.6952 507.8149 507.9345 508.0541 508.1737 508.2933 508.4128 508.5324 508.6519 508.7714 508.8909 509.0103 509.1298 509.2492 509.3686 509.4880 509.6074 509.7268 509.8461 509.9655
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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 101-249: 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
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SQ 20220602T140620.4Z 8188.587737 29 1 47.08 2 44.13 99.51 70.44 71.80 0.00 1 0.00 1 0 15 2.529e-03 2.513e-03 1.344e-03 1.342e-03 3.638094e+03 9.775872e+01 2.417039e+02 -6.000000e+00 1.665683e+02 284.37 -2.00 20.00 -2.00 505.27 0.00e+00 3.806653e-04 4.010999e-05 2.773386e-05 -6.000000e+00 7.694324e-05 284.37 -2.00 20.00 -2.00 500.45 0.00e+00 1.666496e-03 2.906596e-02 2.999896e-02 -6.000000e+00 5.492265e-02 232.00 -2.00 3.49 -2.00 502.04 0.00e+00 1.391 0.000 489.00 513.00 1 7.1890e+00 2.2582e-03 3.2255e-03 -6.0000e+00 4.2654e-03 7.8034e-03 5.4593e-04 6.8776e-04 -6.0000e+00 1.0427e-03 1.2077e-03 5.6985e-04 2.1415e-04 1.3737e-05 -6.0000e+00 4.2542e-04 -1.2423e-02 6.0876e-06 0 0 0 10 0 0 99.23 19.01 0.73 -0.01242 -0.00847 18 6 1 4 0 2615.080 22.40 15.00 19.01 31.41 18.6 1062.00 -330 88 279 -181 172 -10 203 -48 5 126 77 21 -34 -193 -97 -342 257 22 226 -47 74 170 188 385 196 345 16 230 94 -386 19 80 520 115 -191 -236 -158 -203 8 -17 356 104 107 111 23 -110 -192 -172 69 -391 -546 -248 -481 -2 -58 -237 -185 -112 -37 236 474 437 237 -166 -100 -17 18 308 80 -226 -104 -257 214 -23 -108 -229 -502 -157 8 -254 -323 -676 134 94 -163 -296 -227 -157 -232 169 471 544 -99 82 -23 77 -121 -193 -514 -205 -342 -483 -183 -180 -301 -371 -408 33 -8 39 -55 103 240 373 215 361 579 334 396 26 298 563 232 337 121 118 50 283 276 306 48 -356 293 53 195 -74 203 -185 -138 32 158 -102 -141 -162 -226 147 -234 -360 -207 -331 89 288 -184 178 -10 215 -51 5 133 80 22 -35 -196 -99 -351 266 24 241 -48 77 177 197 401 204 356 16 241 98 -397 19 82 540 117 -197 -244 -163 -208 8 -18 361 106 110 114 24 -114 -196 -172 71 -395 -543 -244 -475 -2 -58 -233 -184 -112 -37 238 477 440 238 -167 -103 -17 18 306 79 -223 -103 -254 211 -23 -106 -225 -491 -152 7 -245 -313 -663 132 93 -163 -297 -219 -153 -226 165 461 534 -98 80 -22 76 -117 -184 -488 -194 -329 -473 -175 -174 -294 -363 -400 33 -8 38 -55 103 241 377 218 367 586 337 395 26 292 548 226 328 118 115 49 273 265 292 45 -335 274 49 185 -72 197 -183 -137 32 159 -103 -142 -162 -225 144 -228 -349 -200