File name: Pandora80s1_BeltsvilleMD_20230929_L2Fit_fwvt1c9d20230401p1-8.txt File generation date: 20241115T065552.9Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c9p1-8 Local principal investigator: John Sullivan Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 80 Spectrometer number: 1 Processing software version used: BlickP v1.8.60 Instrument operation file used: Pandora80_OF_v4d20220517.txt Instrument calibration file used: Pandora80s1_CF_v9d20230401.txt Level 1 file used: Pandora80s1_BeltsvilleMD_20230929_L1_smca1c9d20230401p1-8.txt Full location name: Howard University-Beltsville Campus, Beltsville, MD Short location name: BeltsvilleMD Country of location: United States Location latitude [deg]: 39.0567 Location longitude [deg]: -76.8758 Location altitude [m]: 70 Local noon date: 20230929 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, radiometric temperature correction, matrix method stray light correction (replaced by simple method) Data caveats: Modification of session 8 "testing blickC" First and last pixel inside fitting window: 1614 1763 Nominal wavelengths inside fitting window [nm]: 492.1015 492.2228 492.3441 492.4654 492.5866 492.7078 492.8291 492.9502 493.0714 493.1926 493.3137 493.4349 493.5560 493.6771 493.7981 493.9192 494.0403 494.1613 494.2823 494.4033 494.5243 494.6452 494.7662 494.8871 495.0080 495.1289 495.2498 495.3706 495.4915 495.6123 495.7331 495.8539 495.9747 496.0954 496.2162 496.3369 496.4576 496.5783 496.6990 496.8196 496.9403 497.0609 497.1815 497.3021 497.4227 497.5432 497.6638 497.7843 497.9048 498.0253 498.1457 498.2662 498.3866 498.5070 498.6274 498.7478 498.8682 498.9886 499.1089 499.2292 499.3495 499.4698 499.5901 499.7103 499.8305 499.9508 500.0710 500.1911 500.3113 500.4314 500.5516 500.6717 500.7918 500.9119 501.0319 501.1520 501.2720 501.3920 501.5120 501.6320 501.7519 501.8719 501.9918 502.1117 502.2316 502.3515 502.4714 502.5912 502.7110 502.8308 502.9506 503.0704 503.1901 503.3099 503.4296 503.5493 503.6690 503.7887 503.9083 504.0279 504.1476 504.2672 504.3868 504.5063 504.6259 504.7454 504.8649 504.9844 505.1039 505.2234 505.3428 505.4622 505.5817 505.7010 505.8204 505.9398 506.0591 506.1785 506.2978 506.4171 506.5363 506.6556 506.7748 506.8941 507.0133 507.1324 507.2516 507.3708 507.4899 507.6090 507.7281 507.8472 507.9663 508.0853 508.2044 508.3234 508.4424 508.5614 508.6803 508.7993 508.9182 509.0371 509.1560 509.2749 509.3938 509.5126 509.6314 509.7502 509.8690 509.9878 --------------------------------------------------------------------------------------- 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 20230929T151626.2Z 8672.636414 371 1 50.55 2 47.64 144.61 131.67 320.54 0.00 1 0.00 1 0 22 3.835e-03 3.805e-03 1.220e-03 1.215e-03 3.444865e+03 7.363134e+01 2.342894e+02 -6.000000e+00 2.078826e+02 287.17 -2.00 20.00 -2.00 505.24 0.00e+00 4.298783e-04 3.318051e-05 2.510215e-05 -6.000000e+00 1.070718e-04 287.17 -2.00 20.00 -2.00 500.34 0.00e+00 5.792105e-02 2.362911e-02 2.489010e-02 -6.000000e+00 7.409782e-02 227.83 -2.00 3.47 -2.00 501.93 0.00e+00 1.482 0.000 489.00 513.00 1 7.8485e+00 1.8127e-03 3.0256e-03 -6.0000e+00 5.6799e-03 9.8987e-03 4.7101e-04 5.8935e-04 -6.0000e+00 1.4848e-03 6.1097e-04 1.0955e-03 1.0192e-04 2.6659e-05 -6.0000e+00 3.3116e-04 2.1816e-04 -3.9163e-05 11 8 0 10 0 0 -68.34 24.66 1.63 0.00022 0.00782 14 2 1 4 0 3610.530 27.05 20.00 24.66 27.85 4.7 984.43 -1180 -582 -359 -128 223 -86 455 383 478 -212 -21 -292 -57 -566 -644 -167 -247 209 -215 443 349 109 594 107 358 313 377 -108 -209 -639 -521 -454 -145 226 383 456 18 14 -174 -286 0 47 540 347 618 321 629 417 161 -399 -605 -561 -613 -563 70 193 218 -91 386 13 258 217 617 376 448 -15 60 -316 -179 -322 -350 139 -193 -202 -169 -264 -242 -392 -758 -411 -267 -467 -10 -114 -223 331 91 -166 126 -61 133 423 424 542 420 102 -118 -422 -490 -836 -402 -230 -249 198 11 86 -350 -517 -234 -238 -182 -88 1425 451 604 542 592 226 129 67 122 98 137 153 247 201 224 341 373 -6 -123 -334 -433 -726 -143 -354 -124 20 -179 368 209 -33 8 304 153 -84 -348 -314 -711 -480 -1157 -581 -353 -130 230 -91 488 413 510 -224 -22 -300 -58 -565 -643 -167 -253 219 -232 477 376 118 638 116 389 339 406 -115 -214 -636 -515 -453 -148 240 417 494 19 15 -182 -298 0 50 572 372 667 346 669 438 166 -400 -588 -535 -582 -545 70 198 228 -95 401 14 269 228 646 393 462 -15 60 -315 -175 -310 -338 135 -190 -202 -170 -261 -234 -374 -719 -389 -256 -452 -9 -112 -222 330 90 -166 126 -62 135 412 417 528 402 101 -114 -397 -451 -763 -369 -217 -246 191 10 83 -335 -488 -219 -227 -177 -87 1394 448 601 543 597 228 128 65 117 93 130 147 236 192 214 324 354 -6 -115 -307 -393 -692 -129 -330 -118 19 -175 360 205 -32 8 303 153 -83 -332 -292 -658 -446 SQ 20230929T163151.7Z 8672.688793 417 1 51.40 2 41.98 170.27 137.84 344.46 0.00 1 0.00 1 0 15 4.754e-03 4.708e-03 9.729e-04 9.695e-04 2.954217e+03 5.799414e+01 1.928869e+02 -6.000000e+00 2.576164e+02 287.16 -2.00 20.00 -2.00 505.27 0.00e+00 4.650272e-04 2.641284e-05 2.811490e-05 -6.000000e+00 1.327069e-04 287.16 -2.00 20.00 -2.00 500.41 0.00e+00 1.031417e-01 1.872420e-02 2.352173e-02 -6.000000e+00 9.178406e-02 227.83 -2.00 3.47 -2.00 502.01 0.00e+00 1.344 0.000 489.00 513.00 1 7.4804e+00 1.4313e-03 2.8088e-03 -6.0000e+00 7.0364e-03 1.0760e-02 3.7479e-04 5.3024e-04 -6.0000e+00 1.8382e-03 8.9757e-04 3.9148e-04 8.1483e-05 2.2382e-05 -6.0000e+00 4.1029e-04 -6.3256e-03 3.9386e-05 12 8 8 10 0 0 99.86 24.93 1.64 -0.00633 -0.00361 30 5 1 4 0 1713.090 27.26 20.00 24.93 30.02 4.7 1001.67 -1073 -810 -412 -144 -17 369 463 398 377 235 -138 -149 -291 -323 -341 -315 73 110 233 332 232 20 469 155 194 435 370 -109 -275 -406 -753 -360 9 148 245 352 124 -278 -201 -389 94 319 212 609 512 684 529 584 97 -226 -632 -900 -543 -609 -4 -212 108 81 200 116 315 287 533 322 120 361 -151 -226 -351 -437 -293 -213 1 -74 -11 -254 -56 -495 -578 -199 -392 -341 -405 -83 -144 -66 -91 -257 -6 -15 205 62 232 424 307 190 -169 -488 -662 -715 -593 -273 -465 -63 -63 -36 -381 -505 -226 -275 -51 117 3811 396 431 559 431 118 -14 84 108 138 215 93 225 14 264 26 412 -79 11 -194 -581 -449 -403 -174 -209 151 -36 169 335 46 168 239 98 -98 -264 -385 -535 -731 -1039 -801 -423 -153 -17 385 492 425 400 245 -142 -151 -291 -336 -355 -314 73 115 248 355 248 21 500 166 209 467 395 -115 -279 -399 -739 -355 10 157 264 378 131 -292 -208 -401 96 331 223 645 547 728 558 606 99 -224 -609 -852 -510 -583 -4 -216 112 84 206 119 325 298 553 334 123 362 -150 -221 -340 -417 -279 -205 1 -73 -11 -249 -54 -467 -541 -185 -370 -325 -389 -80 -141 -65 -90 -253 -6 -15 204 63 238 431 307 186 -162 -456 -604 -646 -540 -255 -455 -64 -64 -36 -380 -495 -221 -273 -52 113 3787 390 426 555 431 118 -14 81 107 135 212 93 224 14 262 26 407 -79 11 -185 -550 -421 -381 -169 -197 143 -35 164 326 45 166 236 96 -95 -249 -354 -512 -674