File name: Pandora127s1_Mainz-MPIC_20251202_L2Fit_fwvt1c8d20250721p1-8.txt File generation date: 20251202T232720.6Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c8p1-8 Local principal investigator: Thomas Wagner Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 127 Spectrometer number: 1 Processing software version used: BlickP v1.8.75 Instrument operation file used: Pandora127_OF_v4d20210611.txt Instrument calibration file used: Pandora127s1_CF_v8d20250721.txt Level 1 file used: Pandora127s1_Mainz-MPIC_20251202_L1_smca1c8d20250721p1-8.txt Full location name: Max-Planck-Institute for Chemistry, Mainz Short location name: Mainz-MPIC Country of location: Germany Location latitude [deg]: 49.9910 Location longitude [deg]: 8.2280 Location altitude [m]: 125 Local noon date: 20251202 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: 1649 1799 Nominal wavelengths inside fitting window [nm]: 492.0928 492.2131 492.3335 492.4538 492.5741 492.6944 492.8147 492.9349 493.0552 493.1754 493.2956 493.4158 493.5360 493.6562 493.7763 493.8964 494.0165 494.1366 494.2567 494.3768 494.4968 494.6168 494.7368 494.8568 494.9768 495.0968 495.2167 495.3366 495.4565 495.5764 495.6963 495.8161 495.9360 496.0558 496.1756 496.2954 496.4151 496.5349 496.6546 496.7743 496.8940 497.0137 497.1334 497.2530 497.3727 497.4923 497.6119 497.7315 497.8510 497.9706 498.0901 498.2096 498.3291 498.4486 498.5680 498.6875 498.8069 498.9263 499.0457 499.1651 499.2844 499.4038 499.5231 499.6424 499.7617 499.8810 500.0002 500.1195 500.2387 500.3579 500.4771 500.5962 500.7154 500.8345 500.9536 501.0727 501.1918 501.3109 501.4299 501.5490 501.6680 501.7870 501.9059 502.0249 502.1439 502.2628 502.3817 502.5006 502.6195 502.7383 502.8572 502.9760 503.0948 503.2136 503.3324 503.4511 503.5699 503.6886 503.8073 503.9260 504.0446 504.1633 504.2819 504.4005 504.5191 504.6377 504.7563 504.8748 504.9934 505.1119 505.2304 505.3489 505.4673 505.5858 505.7042 505.8226 505.9410 506.0594 506.1777 506.2961 506.4144 506.5327 506.6510 506.7693 506.8875 507.0057 507.1240 507.2422 507.3604 507.4785 507.5967 507.7148 507.8329 507.9510 508.0691 508.1872 508.3052 508.4232 508.5413 508.6593 508.7772 508.8952 509.0131 509.1311 509.2490 509.3669 509.4847 509.6026 509.7204 509.8382 509.9560 --------------------------------------------------------------------------------------- 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 20251202T100438.2Z 9467.419887 268 1 48.79 2 73.76 162.65 112.00 20.77 0.00 1 0.00 1 0 15 3.717e-03 3.657e-03 5.597e-04 5.583e-04 2.676553e+03 3.150760e+01 2.052608e+02 -6.000000e+00 1.915560e+02 270.94 -2.00 20.00 -2.00 505.27 0.00e+00 1.018690e-03 1.473102e-05 5.631296e-05 -6.000000e+00 1.000522e-04 270.94 -2.00 20.00 -2.00 500.48 0.00e+00 1.758408e-01 1.086603e-02 2.180652e-02 -6.000000e+00 7.243984e-02 220.96 -2.00 3.76 -2.00 502.06 0.00e+00 3.517 0.001 489.00 513.00 1 6.2717e+00 8.2861e-04 5.4406e-03 -6.0000e+00 5.5264e-03 1.7208e-03 2.1581e-04 5.7921e-04 -6.0000e+00 1.4479e-03 2.1966e-03 3.4086e-04 5.0187e-05 3.5658e-05 -6.0000e+00 3.4259e-04 3.1794e-03 -7.7996e-05 10 0 0 10 0 0 96.54 20.48 1.81 0.00318 0.00554 44 10 1 2 0 1108.700 20.11 20.48 12.79 25.39 25.28 0.5 904.77 -794 -570 -219 -44 190 464 643 495 406 363 265 16 -270 -290 -571 -398 -171 81 125 -98 309 11 119 238 228 444 547 235 -217 -534 -411 -488 -131 387 177 102 305 88 -225 -143 -116 -3 235 276 474 409 386 311 170 -91 -471 -711 -1754 -727 -503 -284 -89 26 106 138 270 370 339 499 336 184 174 70 -176 -383 -375 -233 -203 150 115 -156 -261 -193 -340 -424 -450 -338 -498 -281 -16 -288 -219 -60 -108 -139 -23 295 489 332 481 522 363 -112 -418 -660 -869 -602 -503 76 -67 -261 4 -390 -369 -185 -73 37 115 212 345 475 637 675 550 250 110 114 52 321 159 105 276 314 246 382 302 -63 -74 -248 -424 -410 -23 -231 -11 106 34 135 231 236 300 257 -6 -291 -488 -450 -397 -745 -545 -216 -45 199 472 664 516 422 372 268 17 -278 -295 -579 -405 -176 82 130 -103 323 12 125 251 241 469 575 244 -220 -526 -416 -474 -130 397 187 109 321 92 -232 -146 -118 -3 244 290 502 436 408 325 175 -92 -461 -680 -1671 -691 -490 -286 -91 27 110 142 279 384 354 521 348 188 175 69 -173 -373 -362 -225 -197 148 114 -155 -256 -186 -323 -402 -428 -324 -482 -273 -16 -287 -219 -59 -108 -138 -23 286 483 331 474 507 360 -109 -397 -615 -803 -560 -482 75 -66 -260 4 -379 -353 -177 -70 37 115 214 350 484 651 693 564 254 109 112 50 312 156 103 271 308 241 374 295 -61 -70 -233 -395 -384 -22 -226 -11 107 34 137 235 233 296 254 -6 -289 -474 -430 -381 SQ 20251202T101023.4Z 9467.423882 272 1 45.53 2 73.49 164.02 111.65 22.14 0.00 1 0.00 1 0 15 3.875e-03 3.859e-03 1.221e-03 1.218e-03 2.604175e+03 6.882857e+01 2.036753e+02 -6.000000e+00 1.997221e+02 270.94 -2.00 20.00 -2.00 505.25 0.00e+00 9.389448e-04 3.202536e-05 5.296043e-05 -6.000000e+00 1.043234e-04 270.94 -2.00 20.00 -2.00 500.40 0.00e+00 1.834149e-01 2.365847e-02 1.990219e-02 -6.000000e+00 7.554371e-02 220.96 -2.00 3.76 -2.00 502.00 0.00e+00 3.464 0.001 489.00 513.00 1 7.4972e+00 1.7995e-03 5.3039e-03 -6.0000e+00 5.7630e-03 6.1886e-03 4.7140e-04 5.4713e-04 -6.0000e+00 1.5103e-03 6.5012e-04 4.7482e-04 1.0931e-04 3.4980e-05 -6.0000e+00 3.5725e-04 2.2397e-03 -8.6666e-05 11 8 0 10 0 0 82.49 20.52 1.86 0.00224 0.00553 18 4 1 2 0 2529.060 19.72 20.52 12.88 25.47 25.28 0.4 904.90 -713 -519 -168 -340 315 522 703 459 516 335 223 65 -318 -440 -409 -339 -271 253 228 -16 347 21 109 105 298 109 486 396 -315 -429 -443 -422 -372 242 50 195 288 223 -240 -177 -223 47 280 332 578 568 226 362 58 16 -366 -679 -1791 -839 -316 -246 -158 136 11 -152 361 397 317 606 408 219 288 -205 -148 -483 -187 -304 -107 157 -110 40 -433 -220 -574 -179 -596 -284 -331 -262 16 -306 -307 -261 -198 -330 48 502 425 381 738 400 277 -104 -310 -609 -1021 -713 -416 11 -91 -164 51 -358 -495 -206 75 169 -70 182 288 493 680 581 395 519 122 29 131 417 190 162 94 274 169 389 374 -156 -26 -411 -202 -278 -275 1 -73 87 26 219 237 450 137 277 57 -173 -460 -598 -387 -672 -498 -167 -350 331 557 763 503 562 360 236 68 -329 -450 -416 -346 -281 269 235 -16 362 22 114 110 314 114 508 409 -319 -443 -449 -429 -388 246 52 206 301 231 -246 -180 -227 48 288 347 607 599 238 375 59 16 -355 -678 -1786 -834 -305 -245 -161 140 11 -156 369 408 328 625 419 222 287 -202 -144 -466 -178 -290 -103 153 -109 39 -421 -209 -542 -168 -562 -269 -316 -253 16 -301 -303 -258 -195 -327 48 502 433 391 750 401 272 -100 -291 -560 -933 -656 -393 11 -93 -168 52 -359 -490 -203 75 171 -68 179 286 491 680 584 396 514 119 27 131 417 182 156 90 263 162 372 356 -148 -25 -396 -193 -267 -257 1 -71 85 26 217 235 449 138 277 56 -167 -436 -559 -361