File name: Pandora277s1_Nagoya_20251220_L2Fit_fwvt1c4d20250225p1-8.txt File generation date: 20251220T145507.8Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c4p1-8 Local principal investigator: Urumu Tsunogai Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 277 Spectrometer number: 1 Processing software version used: BlickP v1.8.75 Instrument operation file used: Pandora277_OF_v3d20230817.txt Instrument calibration file used: Pandora277s1_CF_v4d20250225.txt Level 1 file used: Pandora277s1_Nagoya_20251220_L1_smca1c4d20250225p1-8.txt Full location name: Nagoya University Short location name: Nagoya Country of location: Japan Location latitude [deg]: 35.1517 Location longitude [deg]: 136.9721 Location altitude [m]: 117 Local noon date: 20251220 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: redo HCHO First and last pixel inside fitting window: 1619 1768 Nominal wavelengths inside fitting window [nm]: 492.1140 492.2349 492.3559 492.4768 492.5976 492.7185 492.8393 492.9602 493.0810 493.2018 493.3226 493.4433 493.5641 493.6848 493.8055 493.9262 494.0469 494.1676 494.2882 494.4088 494.5295 494.6501 494.7706 494.8912 495.0118 495.1323 495.2528 495.3733 495.4938 495.6143 495.7347 495.8551 495.9755 496.0959 496.2163 496.3367 496.4570 496.5774 496.6977 496.8180 496.9383 497.0585 497.1788 497.2990 497.4192 497.5394 497.6596 497.7798 497.8999 498.0201 498.1402 498.2603 498.3804 498.5004 498.6205 498.7405 498.8605 498.9805 499.1005 499.2205 499.3404 499.4604 499.5803 499.7002 499.8201 499.9399 500.0598 500.1796 500.2994 500.4192 500.5390 500.6588 500.7785 500.8983 501.0180 501.1377 501.2574 501.3770 501.4967 501.6163 501.7359 501.8555 501.9751 502.0947 502.2142 502.3337 502.4533 502.5728 502.6922 502.8117 502.9311 503.0506 503.1700 503.2894 503.4088 503.5281 503.6475 503.7668 503.8861 504.0054 504.1247 504.2440 504.3632 504.4824 504.6016 504.7208 504.8400 504.9592 505.0783 505.1975 505.3166 505.4357 505.5547 505.6738 505.7928 505.9119 506.0309 506.1499 506.2689 506.3878 506.5068 506.6257 506.7446 506.8635 506.9824 507.1012 507.2201 507.3389 507.4577 507.5765 507.6953 507.8140 507.9328 508.0515 508.1702 508.2889 508.4075 508.5262 508.6448 508.7635 508.8821 509.0007 509.1192 509.2378 509.3563 509.4748 509.5933 509.7118 509.8303 509.9488 --------------------------------------------------------------------------------------- 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 20251220T020634.3Z 9485.087897 169 1 40.67 2 59.46 168.52 65.03 169.32 0.00 1 0.00 1 0 15 2.945e-03 2.943e-03 1.368e-03 1.365e-03 2.303241e+03 8.068119e+01 1.721728e+02 -6.000000e+00 1.603213e+02 281.15 -2.00 20.00 -2.00 505.28 0.00e+00 4.337714e-04 3.720343e-05 2.788167e-05 -6.000000e+00 8.174142e-05 281.15 -2.00 20.00 -2.00 500.45 0.00e+00 1.638484e-01 2.668157e-02 1.678841e-02 -6.000000e+00 5.761142e-02 223.88 -2.00 3.39 -2.00 502.05 0.00e+00 1.960 0.000 489.00 513.00 1 7.8234e+00 2.0442e-03 3.1892e-03 -6.0000e+00 4.4145e-03 7.1903e-03 5.2762e-04 4.3442e-04 -6.0000e+00 1.1477e-03 5.8301e-04 2.9069e-04 1.2717e-04 2.2245e-05 -6.0000e+00 2.8318e-04 1.7061e-02 -4.5306e-05 12 1 1 12 1 1 99.96 24.76 1.08 0.01706 0.01908 11 2 1 4 0 3389.010 33.75 20.00 24.76 18.56 0.0 897.34 -535 -317 18 312 229 434 485 515 455 40 -10 28 -279 -148 -202 -84 -313 -71 19 128 203 215 304 203 167 207 53 53 -177 -201 -554 -122 -156 245 233 -14 -15 34 -112 -381 -328 -245 164 226 145 478 359 416 226 -441 -550 -537 -722 -194 -481 -237 138 401 117 105 103 414 389 69 289 -204 -184 0 -157 -453 -555 41 -199 80 -66 -383 -123 -295 -509 -324 -10 -322 -346 -88 -158 -199 -154 223 94 -171 266 310 327 275 379 182 -383 -375 -217 -448 -703 -266 -157 120 -301 -290 -223 80 -159 -151 -53 2 115 305 609 330 473 367 -104 220 -27 55 300 211 152 276 420 169 12 180 105 -21 -340 -371 19 118 -17 101 -139 303 290 663 282 100 88 -136 -442 -358 -250 -398 -507 -308 18 321 242 467 527 562 491 43 -11 29 -286 -150 -204 -86 -328 -76 21 133 211 223 316 212 176 216 55 56 -184 -204 -560 -124 -165 252 243 -14 -16 34 -113 -385 -332 -250 169 234 152 496 369 420 224 -450 -546 -524 -705 -192 -494 -236 139 405 118 106 105 420 394 70 288 -201 -178 0 -157 -449 -549 40 -190 77 -64 -366 -121 -288 -495 -315 -10 -302 -326 -83 -152 -193 -149 215 91 -166 261 309 329 275 373 176 -363 -346 -207 -423 -671 -246 -150 118 -302 -289 -218 77 -153 -147 -53 2 116 311 622 340 488 378 -107 220 -27 54 292 206 150 271 411 165 12 175 101 -20 -318 -345 18 112 -16 100 -139 305 293 670 288 97 85 -137 -437 -344 -238 -380 SQ 20251220T025347.4Z 9485.120688 197 1 54.28 2 58.59 181.12 64.19 180.46 0.00 1 0.00 1 0 15 2.693e-03 2.662e-03 8.159e-04 8.124e-04 2.383803e+03 4.824853e+01 1.756029e+02 -6.000000e+00 1.465761e+02 281.15 -2.00 20.00 -2.00 505.24 0.00e+00 5.696764e-04 2.208333e-05 3.323319e-05 -6.000000e+00 7.473793e-05 281.15 -2.00 20.00 -2.00 500.33 0.00e+00 1.048807e-01 1.601442e-02 1.760033e-02 -6.000000e+00 5.268474e-02 223.88 -2.00 3.39 -2.00 501.93 0.00e+00 1.911 0.000 489.00 513.00 1 7.0721e+00 1.2290e-03 3.1876e-03 -6.0000e+00 4.0368e-03 1.0558e-02 3.1736e-04 4.4547e-04 -6.0000e+00 1.0498e-03 1.2472e-03 6.8485e-04 7.6072e-05 2.3481e-05 -6.0000e+00 2.5895e-04 1.8540e-02 -6.6579e-05 10 0 0 10 0 0 99.99 24.78 1.10 0.01854 0.02329 90 9 1 4 0 603.020 34.00 20.00 24.78 20.36 0.0 910.54 -409 -400 -157 115 157 468 360 234 288 240 -32 -31 -236 -175 -403 -57 -97 2 220 -45 -116 312 112 379 391 266 60 -46 -119 -407 -478 -269 115 181 229 145 43 -37 -289 21 -47 84 78 192 254 316 202 58 167 -306 -444 -655 -671 -347 -174 -199 -101 33 262 176 383 246 238 150 251 155 -53 -111 -214 -232 -411 -107 3 -79 -40 -280 -420 -95 -428 -467 -287 -260 -157 -28 -213 -202 -51 -56 -85 124 263 248 293 245 404 151 -35 -294 -335 -740 -467 -332 -240 63 -215 -284 -157 -234 -219 -13 38 12 324 125 383 477 411 429 235 252 195 162 318 248 209 258 302 73 143 135 152 -209 -135 -209 -284 53 -79 54 219 166 200 321 380 92 -49 -107 -392 -470 -456 -371 -406 -384 -156 117 163 496 386 252 307 252 -33 -32 -238 -175 -403 -58 -101 2 237 -49 -126 337 122 411 425 288 64 -49 -122 -407 -476 -271 120 194 249 157 46 -39 -304 22 -49 89 84 207 275 341 216 61 172 -307 -433 -629 -645 -340 -175 -206 -107 35 275 184 401 245 238 149 260 158 -53 -110 -211 -226 -400 -104 2 -79 -41 -277 -409 -91 -409 -447 -277 -253 -153 -27 -213 -191 -48 -53 -80 118 253 242 288 240 389 142 -34 -282 -313 -687 -436 -318 -226 61 -211 -277 -150 -221 -207 -12 37 11 321 125 384 480 415 432 234 246 188 155 303 238 201 248 290 70 136 129 143 -194 -123 -189 -259 50 -75 52 213 163 198 318 378 92 -49 -105 -378 -442 -424 -346