File name: Pandora39s1_DearbornMI_20240105_L2Fit_fwvt1c1d20210608p1-8.txt File generation date: 20240113T053546.2Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c1p1-8 Local principal investigator: Lukas Valin Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 39 Spectrometer number: 1 Processing software version used: BlickP v1.8.59 Instrument operation file used: Pandora39_OF_v3d20200924.txt Instrument calibration file used: Pandora39s1_CF_v1d20210608.txt Level 1 file used: Pandora39s1_DearbornMI_20240105_L1_smca1c1d20210608p1-8.txt Full location name: Dearborn MI - Salina Elementary School (AQS-26-163-0033) Short location name: DearbornMI Country of location: USA Location latitude [deg]: 42.3067 Location longitude [deg]: -83.1488 Location altitude [m]: 181 Local noon date: 20240105 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: 1692 1843 Nominal wavelengths inside fitting window [nm]: 492.1102 492.2298 492.3493 492.4689 492.5885 492.7080 492.8275 492.9470 493.0665 493.1859 493.3054 493.4248 493.5442 493.6636 493.7830 493.9023 494.0217 494.1410 494.2603 494.3796 494.4989 494.6181 494.7374 494.8566 494.9758 495.0950 495.2141 495.3333 495.4524 495.5716 495.6907 495.8097 495.9288 496.0479 496.1669 496.2859 496.4049 496.5239 496.6428 496.7618 496.8807 496.9996 497.1185 497.2374 497.3563 497.4751 497.5939 497.7127 497.8315 497.9503 498.0691 498.1878 498.3065 498.4252 498.5439 498.6626 498.7812 498.8999 499.0185 499.1371 499.2557 499.3742 499.4928 499.6113 499.7298 499.8483 499.9668 500.0853 500.2037 500.3222 500.4406 500.5590 500.6773 500.7957 500.9141 501.0324 501.1507 501.2690 501.3873 501.5055 501.6237 501.7420 501.8602 501.9784 502.0965 502.2147 502.3328 502.4509 502.5690 502.6871 502.8052 502.9232 503.0413 503.1593 503.2773 503.3953 503.5132 503.6312 503.7491 503.8670 503.9849 504.1028 504.2206 504.3385 504.4563 504.5741 504.6919 504.8097 504.9274 505.0451 505.1629 505.2806 505.3983 505.5159 505.6336 505.7512 505.8688 505.9864 506.1040 506.2216 506.3391 506.4566 506.5741 506.6916 506.8091 506.9266 507.0440 507.1614 507.2788 507.3962 507.5136 507.6310 507.7483 507.8656 507.9829 508.1002 508.2175 508.3347 508.4519 508.5692 508.6864 508.8035 508.9207 509.0378 509.1550 509.2721 509.3892 509.5062 509.6233 509.7403 509.8574 509.9744 --------------------------------------------------------------------------------------- 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 101-252: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 253-404: 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 20240105T190446.5Z 8770.794983 447 1 48.66 2 67.94 201.62 105.28 264.55 0.00 1 0.00 1 0 15 2.241e-03 2.246e-03 5.553e-04 5.536e-04 1.062303e+03 3.155458e+01 7.733830e+01 -6.000000e+00 1.227212e+02 273.68 -2.00 20.00 -2.00 505.25 0.00e+00 9.985938e-04 1.493928e-05 5.602841e-05 -6.000000e+00 6.181055e-05 273.68 -2.00 20.00 -2.00 500.35 0.00e+00 1.627875e-01 1.102709e-02 1.242532e-02 -6.000000e+00 4.464914e-02 223.20 -2.00 3.54 -2.00 501.96 0.00e+00 2.640 0.000 489.00 513.00 1 5.7865e+00 8.4521e-04 4.0516e-03 -6.0000e+00 3.4209e-03 1.1426e-02 2.1681e-04 3.0567e-04 -6.0000e+00 8.7855e-04 4.0581e-03 9.5655e-04 6.0127e-05 2.5070e-05 -6.0000e+00 2.4995e-04 6.6872e-03 -8.8604e-05 10 0 0 10 0 0 99.96 22.02 2.53 0.00669 0.01332 51 11 1 4 0 954.020 26.11 20.00 22.02 7.91 18.0 926.62 -92 1 56 -66 -35 345 337 377 281 153 192 -89 -189 -147 -174 -172 -111 142 26 -120 74 277 247 448 495 321 207 152 -246 -243 -68 -202 -153 197 -126 -370 -245 -49 -179 -142 17 54 76 298 269 167 93 37 -18 -214 -378 -464 -444 -447 -345 -224 -189 -157 -136 -109 217 295 288 250 213 269 79 99 -51 -284 -260 -74 -350 -233 57 -61 -268 -118 -129 -230 -137 -9 -360 -207 28 27 -146 -206 -84 -159 -7 -35 238 117 66 60 171 -196 -195 -75 -235 -398 -423 -99 -4 -407 -270 -170 -188 -110 -28 -146 -1 81 82 259 364 274 384 336 370 393 318 377 370 60 46 207 73 200 269 144 104 -20 -58 -301 56 85 -84 -359 77 9 116 326 251 84 -13 -179 -171 -172 -107 -146 -91 1 58 -68 -37 371 356 400 297 165 204 -94 -196 -151 -178 -177 -116 146 28 -127 79 295 264 479 530 344 220 160 -254 -244 -70 -207 -155 204 -134 -398 -262 -52 -188 -147 18 56 80 316 279 174 96 39 -19 -218 -375 -450 -439 -430 -339 -225 -194 -158 -138 -111 220 299 293 254 215 269 80 99 -51 -279 -253 -72 -342 -230 57 -61 -264 -114 -123 -219 -130 -8 -348 -202 27 26 -142 -199 -81 -154 -7 -34 237 117 67 60 168 -189 -184 -72 -220 -375 -393 -95 -4 -406 -269 -168 -184 -106 -27 -144 -1 80 81 259 365 276 386 336 364 382 305 359 354 58 44 199 70 192 257 137 97 -19 -54 -283 53 80 -80 -348 75 9 115 322 250 81 -13 -175 -164 -162 -99 -137 SQ 20240105T190915.4Z 8770.798094 450 1 47.50 2 68.25 202.69 106.09 265.25 0.00 1 0.00 1 0 15 3.159e-03 3.124e-03 1.992e-03 1.983e-03 1.088620e+03 1.141369e+02 7.988071e+01 -6.000000e+00 1.730137e+02 273.68 -2.00 20.00 -2.00 505.24 0.00e+00 1.043173e-03 5.356103e-05 5.704089e-05 -6.000000e+00 8.714102e-05 273.68 -2.00 20.00 -2.00 500.28 0.00e+00 1.902553e-01 3.977203e-02 1.253112e-02 -6.000000e+00 6.292838e-02 223.20 -2.00 3.54 -2.00 501.90 0.00e+00 2.675 0.000 489.00 513.00 1 7.8677e+00 3.0483e-03 4.1070e-03 -6.0000e+00 4.8216e-03 1.1563e-02 7.8169e-04 3.0946e-04 -6.0000e+00 1.2378e-03 5.0251e-04 4.3099e-04 2.1563e-04 2.5326e-05 -6.0000e+00 3.5231e-04 3.8683e-03 -4.6865e-05 11 1 0 11 8 0 99.55 22.02 2.58 0.00387 0.00686 12 3 1 4 0 3956.050 26.11 20.00 22.02 8.16 18.1 928.40 -513 173 482 -233 85 443 313 246 107 243 -57 -61 -229 -305 -422 -607 43 24 469 182 -152 60 608 177 404 360 -73 173 -363 30 -327 -207 41 243 54 -538 -327 133 -52 125 -195 -87 116 274 262 25 151 264 183 50 18 -736 -273 -627 -452 119 -449 -22 -15 427 376 237 -145 49 151 367 110 111 -257 -178 -510 182 -301 -269 346 -381 -216 -210 -207 -601 -183 -274 -581 -62 84 7 -18 -19 -134 354 -89 220 67 -8 331 -274 419 -99 -111 -174 -642 91 -1067 176 -368 -1 -183 -46 -137 -293 -192 -69 -259 162 255 142 344 602 61 352 160 715 -21 763 184 166 -32 103 -10 883 240 62 266 -388 -290 -216 -25 104 -258 -294 83 318 -1 402 245 116 130 48 84 -513 -457 -500 -508 174 487 -245 90 475 341 269 117 262 -61 -64 -237 -312 -432 -627 45 25 498 196 -165 65 656 192 440 391 -79 184 -380 30 -334 -209 42 255 57 -579 -349 140 -54 130 -202 -90 122 291 280 27 161 278 189 51 18 -727 -265 -613 -443 119 -462 -22 -16 437 385 244 -150 51 155 371 110 110 -255 -174 -497 176 -294 -261 336 -373 -209 -201 -198 -574 -174 -258 -553 -59 81 7 -18 -19 -130 342 -86 216 67 -8 332 -274 410 -95 -104 -163 -595 84 -996 166 -354 -1 -179 -45 -131 -279 -184 -67 -255 161 253 142 344 604 62 350 157 689 -21 734 176 159 -31 99 -9 838 229 59 248 -364 -269 -199 -23 96 -246 -284 80 306 -1 391 240 114 126 46 79 -482 -425 -468