File name: Pandora55s1_QueensNY_20201122_L2Fit_fwvt1c10d20200414p1-8.txt File generation date: 20260625T172720.3Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c10p1-8 Local principal investigator: James Szykman Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 55 Spectrometer number: 1 Processing software version used: BlickP v1.8.88 Instrument operation file used: Pandora55_OF_v3d20190723.txt Instrument calibration file used: Pandora55s1_CF_v10d20200414.txt Level 1 file used: Pandora55s1_QueensNY_20201122_L1_smca1c10d20200414p1-8.txt Full location name: Queens College NYSDEC (USEPA AQS ID 36-081-0124) Short location name: QueensNY Country of location: USA Location latitude [deg]: 40.7361 Location longitude [deg]: -73.8215 Location altitude [m]: 25 Local noon date: 20201122 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: 1689 1839 Nominal wavelengths inside fitting window [nm]: 492.0655 492.1860 492.3064 492.4268 492.5472 492.6675 492.7879 492.9082 493.0285 493.1488 493.2691 493.3894 493.5097 493.6299 493.7501 493.8703 493.9905 494.1107 494.2308 494.3510 494.4711 494.5912 494.7113 494.8314 494.9514 495.0715 495.1915 495.3115 495.4315 495.5515 495.6714 495.7914 495.9113 496.0312 496.1511 496.2710 496.3908 496.5107 496.6305 496.7503 496.8701 496.9899 497.1097 497.2294 497.3491 497.4689 497.5886 497.7082 497.8279 497.9476 498.0672 498.1868 498.3064 498.4260 498.5455 498.6651 498.7846 498.9041 499.0236 499.1431 499.2626 499.3820 499.5015 499.6209 499.7403 499.8597 499.9790 500.0984 500.2177 500.3371 500.4564 500.5756 500.6949 500.8142 500.9334 501.0526 501.1718 501.2910 501.4102 501.5293 501.6485 501.7676 501.8867 502.0058 502.1249 502.2439 502.3629 502.4820 502.6010 502.7200 502.8389 502.9579 503.0768 503.1958 503.3147 503.4336 503.5524 503.6713 503.7901 503.9089 504.0278 504.1465 504.2653 504.3841 504.5028 504.6215 504.7403 504.8589 504.9776 505.0963 505.2149 505.3335 505.4522 505.5708 505.6893 505.8079 505.9264 506.0450 506.1635 506.2820 506.4004 506.5189 506.6373 506.7558 506.8742 506.9926 507.1110 507.2293 507.3477 507.4660 507.5843 507.7026 507.8209 507.9391 508.0574 508.1756 508.2938 508.4120 508.5302 508.6484 508.7665 508.8846 509.0027 509.1208 509.2389 509.3570 509.4750 509.5931 509.7111 509.8291 509.9470 --------------------------------------------------------------------------------------- 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 101-251: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 252-402: 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 20201122T131343.8Z 7631.551202 97 1 49.63 2 77.79 130.91 144.70 51.12 0.00 1 0.00 1 0 22 2.550e-03 2.539e-03 1.926e-04 1.924e-04 5.258165e+03 1.168384e+01 3.763541e+02 -6.000000e+00 1.354305e+02 279.67 -2.00 20.00 -2.00 505.30 0.00e+00 9.225550e-04 5.189692e-06 5.813850e-05 -6.000000e+00 7.001179e-05 279.67 -2.00 20.00 -2.00 500.57 0.00e+00 3.374140e-01 3.702042e-03 3.741018e-02 -6.000000e+00 4.940656e-02 223.15 -2.00 3.51 -2.00 502.15 0.00e+00 4.590 0.002 489.00 513.00 1 3.5142e+00 2.8295e-04 7.4233e-03 -6.0000e+00 3.7803e-03 -1.1164e-02 7.3102e-05 9.7430e-04 -6.0000e+00 9.8742e-04 2.9004e-02 1.1316e-03 1.6806e-05 5.2772e-05 -6.0000e+00 2.3235e-04 7.6562e-03 5.9991e-05 10 0 0 10 0 0 97.61 23.12 0.83 0.00766 0.01551 189 36 1 4 0 262.530 25.90 20.00 23.12 13.94 26.2 957.32 -592 -252 -174 300 515 404 552 405 414 333 -44 -85 -122 -232 -248 -130 44 -27 176 416 125 138 179 70 197 307 113 -182 88 -252 -579 -257 -132 -194 169 320 34 -147 -137 -144 -202 -67 2 152 230 261 215 102 -180 -219 -419 -630 -473 -470 -346 -42 183 183 172 177 122 168 228 207 150 134 96 -194 -268 -102 -322 -281 -174 -187 -81 62 34 -267 -399 -252 -387 -422 -94 -114 -203 -120 -97 -32 -136 -59 68 43 -8 259 313 44 42 -91 -254 -326 -471 -310 -237 -423 -85 80 -127 -127 -120 -343 -198 79 170 247 447 523 410 279 429 295 69 226 206 -126 95 246 -8 170 286 -106 48 256 -129 -196 79 -83 -164 175 287 171 275 241 152 234 174 66 -129 -138 -292 -433 -332 -568 -246 -171 304 525 414 566 419 427 344 -45 -85 -123 -231 -246 -129 45 -28 182 427 129 143 184 73 205 320 117 -187 89 -252 -579 -254 -134 -198 174 331 35 -152 -140 -146 -205 -68 2 156 238 272 222 104 -184 -221 -418 -614 -462 -456 -340 -42 187 186 175 179 124 171 233 212 152 135 96 -192 -266 -100 -313 -274 -172 -184 -81 61 34 -260 -384 -245 -372 -409 -91 -112 -200 -119 -96 -32 -135 -59 67 43 -8 259 314 43 41 -88 -243 -305 -439 -293 -228 -413 -84 80 -127 -127 -118 -339 -196 79 169 249 451 530 414 284 435 295 69 225 203 -125 94 242 -8 167 285 -104 47 251 -126 -190 76 -81 -161 172 287 171 277 245 153 237 176 67 -129 -136 -286 -421 -325 SQ 20201122T155227.5Z 7631.661429 263 1 50.94 2 62.12 166.95 117.60 85.63 0.00 1 0.00 1 0 15 3.785e-03 3.761e-03 1.181e-03 1.178e-03 2.818711e+03 6.857275e+01 2.068575e+02 -6.000000e+00 2.010022e+02 279.65 -2.00 20.00 -2.00 505.26 0.00e+00 6.608344e-04 3.167548e-05 3.996104e-05 -6.000000e+00 1.039116e-04 279.65 -2.00 20.00 -2.00 500.42 0.00e+00 9.609694e-02 2.280720e-02 2.083245e-02 -6.000000e+00 7.334524e-02 223.15 -2.00 3.51 -2.00 502.02 0.00e+00 2.128 0.000 489.00 513.00 1 7.4387e+00 1.7442e-03 3.6410e-03 -6.0000e+00 5.6117e-03 6.9952e-03 4.5347e-04 5.2199e-04 -6.0000e+00 1.4661e-03 8.3457e-04 1.4547e-03 1.0389e-04 2.9855e-05 -6.0000e+00 3.4489e-04 1.0106e-02 3.1986e-05 11 1 0 11 32 0 99.87 23.13 0.59 0.01011 0.02020 14 3 1 4 0 3637.510 25.90 20.00 23.13 16.48 26.5 971.30 -703 -180 -9 574 330 81 373 297 230 303 -293 -123 -379 -138 -331 -217 -120 295 268 763 244 -121 -39 -204 71 394 223 -268 106 -214 -220 -100 -391 137 -218 401 172 84 -261 71 -254 -78 203 -189 95 313 435 3 -404 -87 -580 -318 -246 -931 -152 10 184 335 349 528 -212 485 545 261 274 467 710 -861 -513 -414 -432 118 -353 -103 -451 -245 118 -170 -540 40 -278 -564 173 731 -562 -517 -277 400 116 -377 26 -169 -207 135 252 -181 197 402 67 -595 -439 -436 -181 -552 72 418 -647 -226 -335 60 -69 912 594 -216 660 703 -79 427 454 605 -275 348 -41 -271 149 469 144 150 -298 221 -450 48 -333 -80 -60 -416 -466 27 -94 690 566 -242 -245 280 795 292 -441 408 -488 -491 -276 -689 -177 -9 587 342 85 395 316 244 318 -306 -127 -389 -140 -335 -220 -123 305 281 803 258 -128 -41 -216 75 416 235 -281 109 -216 -220 -100 -397 142 -229 423 180 87 -269 73 -262 -80 210 -197 99 328 454 3 -415 -88 -576 -311 -239 -911 -151 10 188 343 356 538 -217 495 557 267 279 470 708 -859 -507 -406 -421 115 -346 -101 -448 -242 115 -165 -520 39 -267 -545 167 707 -551 -510 -274 393 114 -372 26 -168 -208 135 251 -179 192 385 64 -558 -409 -409 -172 -539 71 415 -642 -222 -326 59 -67 896 590 -217 660 704 -79 430 455 602 -272 340 -40 -265 146 458 140 146 -291 215 -438 46 -318 -76 -56 -393 -446 26 -92 674 556 -239 -243 278 786 290 -434 394 -467 -466 -263