File name: Pandora32s1_GreenbeltMD_20210529_L2Fit_fwvt1c2d20190306p1-8.txt File generation date: 20250509T155004.8Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c2p1-8 Local principal investigator: Nader Abuhassan Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 32 Spectrometer number: 1 Processing software version used: BlickP v1.8.75 Instrument operation file used: Pandora32_OF_v3d20181024.txt Instrument calibration file used: Pandora32s1_CF_v2d20190306.txt Level 1 file used: Pandora32s1_GreenbeltMD_20210529_L1_smca1c2d20190306p1-8.txt Full location name: Goddard Space Flight Center Short location name: GreenbeltMD Country of location: USA Location latitude [deg]: 38.9926 Location longitude [deg]: -76.8396 Location altitude [m]: 90 Local noon date: 20210529 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: OOB ICF based on field calibration session 1 First and last pixel inside fitting window: 1680 1829 Nominal wavelengths inside fitting window [nm]: 492.0707 492.1916 492.3126 492.4335 492.5544 492.6753 492.7962 492.9170 493.0379 493.1587 493.2795 493.4003 493.5211 493.6419 493.7626 493.8833 494.0040 494.1247 494.2454 494.3661 494.4867 494.6073 494.7280 494.8485 494.9691 495.0897 495.2102 495.3307 495.4513 495.5717 495.6922 495.8127 495.9331 496.0535 496.1739 496.2943 496.4147 496.5351 496.6554 496.7757 496.8960 497.0163 497.1366 497.2568 497.3771 497.4973 497.6175 497.7377 497.8578 497.9780 498.0981 498.2182 498.3383 498.4584 498.5785 498.6985 498.8186 498.9386 499.0586 499.1786 499.2985 499.4185 499.5384 499.6583 499.7782 499.8981 500.0179 500.1378 500.2576 500.3774 500.4972 500.6170 500.7368 500.8565 500.9762 501.0959 501.2156 501.3353 501.4549 501.5746 501.6942 501.8138 501.9334 502.0530 502.1725 502.2921 502.4116 502.5311 502.6506 502.7700 502.8895 503.0089 503.1283 503.2477 503.3671 503.4865 503.6058 503.7251 503.8445 503.9637 504.0830 504.2023 504.3215 504.4408 504.5600 504.6792 504.7983 504.9175 505.0366 505.1557 505.2749 505.3939 505.5130 505.6321 505.7511 505.8701 505.9891 506.1081 506.2271 506.3460 506.4650 506.5839 506.7028 506.8216 506.9405 507.0594 507.1782 507.2970 507.4158 507.5346 507.6533 507.7721 507.8908 508.0095 508.1282 508.2469 508.3655 508.4842 508.6028 508.7214 508.8400 508.9585 509.0771 509.1956 509.3141 509.4326 509.5511 509.6696 509.7880 509.9064 --------------------------------------------------------------------------------------- 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 Columns 98-247: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 248-397: 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 20210529T173954.4Z 7819.736046 439 1 50.63 2 18.82 206.01 143.57 280.03 0.00 1 0.00 1 0 15 2.471e-03 2.474e-03 1.007e-03 1.005e-03 4.687806e+03 6.654885e+01 3.162449e+02 -6.000000e+00 1.433703e+02 285.76 -2.00 20.00 -2.00 505.23 0.00e+00 5.318491e-04 2.829374e-05 3.983496e-05 -6.000000e+00 7.092463e-05 285.76 -2.00 20.00 -2.00 500.30 0.00e+00 8.880436e-03 2.062619e-02 3.337660e-02 -6.000000e+00 5.049978e-02 231.91 -2.00 3.47 -2.00 501.90 0.00e+00 1.056 0.000 489.00 513.00 1 7.6587e+00 1.5811e-03 3.3190e-03 -6.0000e+00 3.8702e-03 3.5376e-03 4.1041e-04 7.7557e-04 -6.0000e+00 1.0137e-03 7.8484e-04 -2.0466e-03 1.0936e-04 3.4467e-05 -6.0000e+00 2.8095e-04 -3.7373e-02 -3.7234e-04 11 1 0 11 4 0 99.93 16.91 2.13 -0.03737 -0.05157 14 3 1 4 0 3615.960 21.38 15.02 16.91 900000 -425 -278 -4 157 132 229 638 317 439 270 87 184 54 -49 -56 -54 -51 263 173 -248 125 331 171 331 337 29 -26 -105 -127 -356 -266 -329 -397 299 119 216 -243 -181 -347 -136 -142 140 245 154 166 171 107 97 -157 -206 -680 -490 -560 -181 -303 -549 -153 45 -163 310 150 25 -52 349 160 81 188 -145 461 -193 -135 -117 -26 -30 -20 200 -362 -38 -205 -334 -309 -368 -144 -358 -162 -23 -159 -122 16 110 158 -104 237 -333 184 141 -42 -51 -97 -118 -482 -444 -322 -134 249 -406 -300 -391 50 -77 -107 172 88 98 309 321 321 305 466 7 266 181 85 483 56 290 22 135 84 99 306 -139 -16 -8 77 -125 -48 -140 187 4 267 84 227 141 109 -14 -55 -204 -352 900000 -422 -280 -4 163 137 242 682 335 461 288 92 190 55 -50 -56 -54 -52 276 181 -264 133 351 182 353 360 31 -28 -110 -129 -364 -269 -334 -402 309 125 230 -258 -190 -361 -140 -147 145 256 159 172 177 111 101 -161 -206 -681 -480 -545 -177 -304 -553 -157 47 -169 320 155 26 -53 353 165 82 187 -143 457 -190 -133 -115 -25 -29 -19 195 -350 -37 -198 -322 -298 -358 -138 -347 -158 -23 -157 -120 16 108 157 -102 234 -331 180 138 -41 -49 -91 -109 -448 -420 -307 -131 243 -401 -294 -380 48 -75 -105 170 88 96 306 319 321 304 461 7 262 176 82 467 54 282 21 132 82 96 292 -131 -15 -8 73 -118 -45 -136 180 4 261 82 225 140 108 -13 -53 -193 -337 SQ 20210529T174447.2Z 7819.739435 442 1 48.34 2 19.26 209.22 144.45 281.00 0.00 1 0.00 1 0 15 2.164e-03 2.165e-03 9.284e-04 9.263e-04 4.184375e+03 6.076547e+01 2.863296e+02 -6.000000e+00 1.255907e+02 285.77 -2.00 20.00 -2.00 505.23 0.00e+00 4.547964e-04 2.608731e-05 3.342561e-05 -6.000000e+00 6.212728e-05 285.77 -2.00 20.00 -2.00 500.32 0.00e+00 -9.834817e-02 1.899185e-02 2.947131e-02 -6.000000e+00 4.423449e-02 231.91 -2.00 3.47 -2.00 501.92 0.00e+00 1.059 0.000 489.00 513.00 1 7.4751e+00 1.4556e-03 3.0108e-03 -6.0000e+00 3.3901e-03 4.7032e-03 3.7813e-04 6.9233e-04 -6.0000e+00 8.8787e-04 9.5220e-04 -2.2251e-03 1.0116e-04 3.1142e-05 -6.0000e+00 2.4611e-04 -3.7917e-02 -3.6351e-04 11 1 0 11 4 0 99.20 16.91 2.09 -0.03792 -0.05335 14 3 1 4 0 3452.110 21.38 15.00 16.91 900000 -148 -143 -50 103 -20 191 290 475 370 404 -104 23 3 -324 -133 3 -66 121 224 -157 120 287 250 294 310 311 161 61 -158 -115 -325 -320 -200 212 -143 163 -238 84 -288 -174 -152 10 125 -8 -6 97 -5 272 -172 -207 -539 -333 -567 -153 -180 9 -162 14 67 45 -38 238 88 40 115 -15 291 -59 144 -21 -266 -153 -45 123 -173 -107 -386 -253 -129 -372 -84 -237 49 -158 -205 218 -66 -48 -55 31 49 7 271 -121 296 35 -53 -59 -289 -139 -309 -391 -194 -418 12 -326 -274 -272 -114 -134 -189 71 88 333 302 299 460 375 472 117 149 71 160 380 11 99 72 177 62 40 289 0 80 -147 -173 -108 -41 87 33 118 107 -25 309 121 250 78 -100 -294 -395 900000 -148 -142 -51 106 -21 201 308 507 395 426 -109 23 3 -334 -136 3 -68 126 233 -166 126 303 265 312 329 329 169 63 -163 -116 -326 -323 -205 218 -151 172 -251 87 -298 -178 -156 10 130 -8 -7 101 -5 281 -175 -210 -534 -331 -560 -151 -179 9 -165 14 68 47 -39 245 90 41 117 -15 288 -59 142 -20 -260 -149 -45 122 -170 -106 -380 -245 -123 -356 -81 -229 47 -156 -199 212 -64 -47 -54 31 49 6 268 -120 295 35 -51 -57 -271 -129 -286 -369 -184 -411 12 -321 -268 -264 -112 -130 -185 70 88 334 299 297 459 374 467 117 147 69 155 367 10 96 70 172 60 38 276 0 76 -139 -163 -103 -39 84 32 114 105 -25 305 119 246 76 -96 -284 -377