File name: Pandora295s1_TitoScaloPZ-CNR-IMAA_20251127_L2Fit_fwvt1c3d20250801p1-8.txt File generation date: 20260424T063157.6Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c3p1-8 Local principal investigator: Marco Rosoldi Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 295 Spectrometer number: 1 Processing software version used: BlickP v1.8.88 Instrument operation file used: Pandora295_OF_v3d20250430.txt Instrument calibration file used: Pandora295s1_CF_v3d20250801.txt Level 1 file used: Pandora295s1_TitoScaloPZ-CNR-IMAA_20251127_L1_smca1c3d20250801p1-8.txt Full location name: Istituto di Metodologie per l'Analisi Ambientale (IMAA), CNR, Tito Scalo (PZ) Short location name: TitoScaloPZ-CNR-IMAA Country of location: Italy Location latitude [deg]: 40.6012 Location longitude [deg]: 15.7237 Location altitude [m]: 768 Local noon date: 20251127 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: 1620 1770 Nominal wavelengths inside fitting window [nm]: 492.0392 492.1596 492.2800 492.4004 492.5207 492.6411 492.7614 492.8817 493.0020 493.1223 493.2426 493.3628 493.4830 493.6033 493.7234 493.8436 493.9638 494.0839 494.2041 494.3242 494.4443 494.5643 494.6844 494.8045 494.9245 495.0445 495.1645 495.2845 495.4044 495.5244 495.6443 495.7642 495.8841 496.0040 496.1238 496.2437 496.3635 496.4833 496.6031 496.7229 496.8426 496.9624 497.0821 497.2018 497.3215 497.4412 497.5608 497.6805 497.8001 497.9197 498.0393 498.1588 498.2784 498.3979 498.5174 498.6369 498.7564 498.8759 498.9954 499.1148 499.2342 499.3536 499.4730 499.5924 499.7117 499.8310 499.9504 500.0697 500.1889 500.3082 500.4274 500.5467 500.6659 500.7851 500.9043 501.0234 501.1426 501.2617 501.3808 501.4999 501.6190 501.7380 501.8571 501.9761 502.0951 502.2141 502.3331 502.4520 502.5710 502.6899 502.8088 502.9277 503.0466 503.1654 503.2842 503.4031 503.5219 503.6407 503.7594 503.8782 503.9969 504.1156 504.2343 504.3530 504.4717 504.5903 504.7090 504.8276 504.9462 505.0647 505.1833 505.3018 505.4204 505.5389 505.6574 505.7759 505.8943 506.0128 506.1312 506.2496 506.3680 506.4863 506.6047 506.7230 506.8414 506.9597 507.0780 507.1962 507.3145 507.4327 507.5509 507.6691 507.7873 507.9055 508.0236 508.1418 508.2599 508.3780 508.4960 508.6141 508.7321 508.8502 508.9682 509.0862 509.2041 509.3221 509.4400 509.5580 509.6759 509.7938 509.9116 --------------------------------------------------------------------------------------- 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: Spectrometer control temperature [°C], 999=no temperature signal Column 96: Auxiliary spectrometer temperature [°C], 999=no temperature signal Column 97: Temperature in head sensor [°C], 999=no temperature signal Column 98: Temperature at electronics board 1 [°C], 999=no temperature signal Column 99: Temperature at electronics board 2 [°C], 999=no temperature signal Column 100: Humidity in head sensor [%], -9=no humidity signal Column 101: Pressure in head sensor [hPa], -9=no pressure signal Columns 102-252: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 253-403: 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 20251127T125417.9Z 9462.537707 274 1 54.55 2 68.77 212.37 74.57 125.92 0.00 1 0.00 1 0 15 2.338e-03 2.337e-03 5.743e-04 5.734e-04 1.874047e+03 3.260397e+01 1.365881e+02 -6.000000e+00 1.253764e+02 274.91 -2.00 20.00 -2.00 505.25 0.00e+00 4.469234e-04 1.538030e-05 2.479245e-05 -6.000000e+00 6.411860e-05 274.91 -2.00 20.00 -2.00 500.44 0.00e+00 2.244515e-01 1.123896e-02 1.567268e-02 -6.000000e+00 4.612774e-02 222.78 -2.00 3.48 -2.00 502.03 0.00e+00 2.736 0.000 489.00 513.00 1 7.1124e+00 8.5877e-04 3.8517e-03 -6.0000e+00 3.5270e-03 8.7691e-04 2.2294e-04 4.1282e-04 -6.0000e+00 9.1857e-04 1.0920e-03 8.0284e-04 5.2993e-05 1.9042e-05 -6.0000e+00 2.2149e-04 2.8091e-03 -8.0881e-05 10 0 0 10 0 0 99.98 23.57 1.43 0.00281 0.00838 49 5 1 2 0 1113.080 19.99 23.57 16.47 33.50 33.25 3.2 933.68 -306 -290 -299 38 -241 46 425 345 142 189 -113 244 -88 -136 -148 -74 -159 -254 6 -64 -115 356 303 99 416 20 121 239 74 -117 -92 154 -235 -38 179 -110 -234 33 9 -184 137 112 210 256 388 146 254 175 -80 -157 -216 -212 -183 -481 -119 -191 -375 -129 8 69 13 289 382 178 252 147 76 -209 -39 -69 -146 -12 -138 -219 -7 -56 -321 -277 29 -163 -406 -170 -394 -357 -106 -34 -14 -199 -81 77 181 27 288 409 263 -109 180 74 -177 -159 -306 -332 -445 -442 -10 -558 -291 -215 -148 -111 -65 126 208 446 318 371 311 478 594 264 131 69 18 273 529 188 -100 356 114 172 204 -104 -334 -51 -213 -157 -9 74 -273 -146 73 -54 78 106 178 30 89 -207 -304 -222 -283 -295 -283 -292 39 -245 48 447 359 147 194 -117 250 -89 -135 -151 -74 -160 -261 6 -67 -120 374 318 104 439 21 127 250 76 -118 -91 153 -236 -38 187 -114 -247 34 10 -188 139 115 216 266 398 151 261 182 -82 -159 -216 -206 -180 -473 -116 -193 -380 -132 9 70 13 296 393 179 258 150 76 -206 -38 -68 -142 -12 -136 -217 -7 -55 -313 -271 28 -156 -389 -165 -386 -351 -102 -34 -13 -197 -80 76 179 27 286 410 263 -108 179 72 -172 -151 -288 -314 -430 -431 -9 -559 -290 -212 -146 -110 -64 125 208 451 317 372 313 482 598 263 132 69 17 266 520 185 -99 351 113 169 201 -101 -319 -49 -205 -150 -8 72 -271 -143 72 -53 78 106 179 30 89 -203 -297 -213 -272 SQ 20251127T125951.9Z 9462.541573 278 1 54.80 2 69.34 213.61 73.72 126.96 0.00 1 0.00 1 0 15 2.844e-03 2.840e-03 7.850e-04 7.837e-04 1.984706e+03 4.481800e+01 1.456596e+02 -6.000000e+00 1.525235e+02 274.91 -2.00 20.00 -2.00 505.25 0.00e+00 4.384709e-04 2.105668e-05 2.357323e-05 -6.000000e+00 7.799850e-05 274.91 -2.00 20.00 -2.00 500.43 0.00e+00 2.528046e-01 1.537515e-02 1.621665e-02 -6.000000e+00 5.610203e-02 222.78 -2.00 3.48 -2.00 502.03 0.00e+00 2.807 0.000 489.00 513.00 1 7.6896e+00 1.1754e-03 3.9514e-03 -6.0000e+00 4.2899e-03 7.8103e-04 3.0490e-04 4.3023e-04 -6.0000e+00 1.1169e-03 6.0611e-04 4.5811e-04 7.2337e-05 1.9582e-05 -6.0000e+00 2.6943e-04 3.3076e-03 -6.4601e-05 10 0 0 10 0 0 98.50 23.56 1.39 0.00331 0.00649 21 2 1 2 0 2609.270 20.00 23.56 16.37 33.50 33.25 3.2 933.57 -270 -316 -372 -74 -317 157 471 288 -135 99 -249 360 -266 -160 -116 74 -291 -225 -65 -65 -88 321 481 -120 575 -214 298 199 -101 86 46 260 -133 -97 416 -62 -226 120 15 -145 254 43 108 26 471 209 210 274 -154 -107 -330 -282 -93 -662 81 -371 -462 61 253 50 106 382 406 131 174 221 63 -240 6 -187 41 -139 -27 -64 -366 131 -435 -299 214 158 -583 -91 -606 -328 -285 -228 113 -337 19 346 148 -184 395 555 189 -91 350 106 -200 -199 -331 -188 -581 -330 -104 -628 -364 -67 -49 -160 -8 305 194 348 -27 369 215 403 757 156 213 72 5 338 526 437 -287 391 187 287 273 -296 -317 -5 -369 48 12 44 -348 -190 39 -69 7 148 304 158 -28 -140 -644 -268 -355 -264 -312 -367 -76 -324 162 497 299 -141 102 -260 371 -270 -160 -116 74 -294 -232 -67 -67 -92 336 503 -126 604 -227 312 208 -103 87 45 258 -134 -98 434 -66 -238 125 15 -147 257 44 112 28 493 221 220 284 -158 -108 -331 -275 -90 -638 80 -365 -468 62 259 51 109 391 417 135 178 224 63 -237 6 -185 39 -136 -26 -64 -359 129 -423 -293 206 151 -562 -88 -596 -322 -276 -224 111 -332 19 340 146 -184 399 552 188 -91 346 103 -190 -190 -311 -178 -563 -321 -101 -626 -360 -66 -48 -157 -8 298 193 350 -28 375 220 402 774 158 213 71 5 327 513 427 -282 382 182 279 266 -287 -310 -5 -354 45 12 43 -343 -190 39 -67 7 147 302 157 -28 -139 -628 -256 -339