File name: Pandora55s1_QueensNY_20220406_L2Fit_fwvt1c19d20211111p1-8.txt File generation date: 20250606T115146.2Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c19p1-8 Local principal investigator: Lukas Valin Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 55 Spectrometer number: 1 Processing software version used: BlickP v1.8.75 Instrument operation file used: Pandora55_OF_v4d20190723.txt Instrument calibration file used: Pandora55s1_CF_v19d20211111.txt Level 1 file used: Pandora55s1_QueensNY_20220406_L1_smca1c19d20211111p1-8.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: 20220406 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]: 492.1050 492.2254 492.3459 492.4663 492.5867 492.7071 492.8275 492.9478 493.0682 493.1885 493.3088 493.4291 493.5493 493.6696 493.7898 493.9101 494.0303 494.1505 494.2706 494.3908 494.5109 494.6310 494.7511 494.8712 494.9913 495.1114 495.2314 495.3514 495.4714 495.5914 495.7114 495.8313 495.9513 496.0712 496.1911 496.3110 496.4309 496.5507 496.6706 496.7904 496.9102 497.0300 497.1498 497.2695 497.3893 497.5090 497.6287 497.7484 497.8681 497.9877 498.1073 498.2270 498.3466 498.4662 498.5857 498.7053 498.8248 498.9444 499.0639 499.1834 499.3028 499.4223 499.5417 499.6612 499.7806 499.8999 500.0193 500.1387 500.2580 500.3773 500.4966 500.6159 500.7352 500.8545 500.9737 501.0929 501.2121 501.3313 501.4505 501.5697 501.6888 501.8079 501.9270 502.0461 502.1652 502.2843 502.4033 502.5223 502.6413 502.7603 502.8793 502.9982 503.1172 503.2361 503.3550 503.4739 503.5928 503.7116 503.8305 503.9493 504.0681 504.1869 504.3057 504.4244 504.5432 504.6619 504.7806 504.8993 505.0179 505.1366 505.2552 505.3739 505.4925 505.6111 505.7296 505.8482 505.9667 506.0852 506.2037 506.3222 506.4407 506.5592 506.6776 506.7960 506.9144 507.0328 507.1512 507.2695 507.3879 507.5062 507.6245 507.7428 507.8610 507.9793 508.0975 508.2157 508.3340 508.4521 508.5703 508.6885 508.8066 508.9247 509.0428 509.1609 509.2790 509.3970 509.5150 509.6330 509.7510 509.8690 509.9870 --------------------------------------------------------------------------------------- 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 20220406T164112.4Z 8131.695282 246 1 51.95 2 34.31 172.73 56.98 84.22 0.00 1 0.00 1 0 15 3.193e-03 3.166e-03 9.586e-04 9.566e-04 2.615738e+03 5.533543e+01 1.925607e+02 -6.000000e+00 1.695828e+02 279.43 -2.00 20.00 -2.00 505.26 0.00e+00 5.016449e-04 2.568110e-05 3.013953e-05 -6.000000e+00 8.755560e-05 279.43 -2.00 20.00 -2.00 500.43 0.00e+00 8.897038e-02 1.859765e-02 1.948088e-02 -6.000000e+00 6.214150e-02 227.91 -2.00 3.51 -2.00 502.03 0.00e+00 1.210 0.000 489.00 513.00 1 7.2621e+00 1.4218e-03 2.4984e-03 -6.0000e+00 4.7526e-03 4.1452e-03 3.6981e-04 4.7734e-04 -6.0000e+00 1.2405e-03 1.1379e-03 5.0629e-04 8.4512e-05 2.6718e-05 -6.0000e+00 2.9053e-04 -3.7999e-03 -2.8381e-06 12 1 1 12 32 32 99.87 22.57 1.13 -0.00380 -0.00029 14 3 1 4 0 3709.650 25.58 20.01 22.57 14.84 31.3 1082.83 -508 -151 243 402 138 123 346 304 388 78 -105 76 -211 -28 -25 -212 20 -41 -60 558 319 25 174 -49 223 198 -75 -183 372 -321 -216 -327 -227 -110 78 435 210 -59 -80 -197 -138 -106 -134 -71 20 151 358 136 -278 -397 -353 -970 -56 -655 -16 -172 -44 422 270 189 -91 76 423 511 31 427 413 -494 -363 2 -251 219 -74 -17 -330 6 104 -749 -284 -523 -339 -401 -134 -238 -269 -157 -338 397 221 -278 70 335 116 215 200 -196 192 130 -220 -427 -433 -491 -382 -372 308 32 -433 -275 -238 -543 -237 766 315 9 606 769 214 391 468 452 -155 -48 -195 -192 64 154 791 158 224 -131 111 264 -444 -243 7 -333 -170 90 198 65 480 1 -166 259 752 139 -243 -276 -348 -397 13 -500 -150 245 413 143 129 367 323 411 82 -109 79 -216 -29 -25 -216 20 -43 -63 589 337 26 184 -52 236 210 -79 -192 382 -325 -217 -329 -232 -114 82 458 220 -62 -83 -203 -142 -110 -139 -74 21 158 373 141 -285 -401 -350 -951 -55 -640 -16 -174 -45 432 276 192 -93 78 432 521 32 430 412 -491 -358 2 -244 213 -72 -17 -328 6 101 -726 -273 -503 -326 -388 -130 -232 -264 -154 -333 390 217 -274 69 332 116 215 200 -194 187 125 -208 -401 -405 -462 -367 -365 305 32 -429 -269 -231 -529 -232 754 312 9 606 769 215 394 469 449 -153 -47 -190 -187 62 150 769 154 218 -128 107 253 -423 -229 6 -315 -163 87 193 64 471 1 -164 256 743 138 -239 -267 -332 -376 12 SQ 20220406T202036.2Z 8131.847641 385 1 50.94 2 56.49 247.29 18.99 140.47 0.00 1 0.00 1 0 15 3.192e-03 3.167e-03 9.964e-04 9.944e-04 2.316833e+03 5.701423e+01 1.748702e+02 -6.000000e+00 1.694996e+02 279.44 -2.00 20.00 -2.00 505.27 0.00e+00 6.144840e-04 2.670133e-05 3.518343e-05 -6.000000e+00 8.751040e-05 279.44 -2.00 20.00 -2.00 500.45 0.00e+00 1.370151e-01 1.931051e-02 1.696069e-02 -6.000000e+00 6.210733e-02 227.92 -2.00 3.51 -2.00 502.04 0.00e+00 1.805 0.000 489.00 513.00 1 7.2222e+00 1.4764e-03 3.0769e-03 -6.0000e+00 4.7500e-03 4.4160e-03 3.8403e-04 4.3293e-04 -6.0000e+00 1.2399e-03 1.0829e-03 7.9124e-04 8.8163e-05 2.5471e-05 -6.0000e+00 2.9037e-04 -3.3972e-03 -5.3214e-06 11 1 0 11 32 0 99.97 22.51 0.90 -0.00340 0.00209 16 3 1 4 0 3183.480 25.58 20.00 22.51 16.90 31.4 1093.72 -545 -248 233 297 146 257 270 194 243 420 -273 -44 -221 -284 43 -282 -52 -221 259 659 136 34 249 211 133 409 8 -197 209 -133 -277 16 -176 -18 -80 368 53 -114 26 -364 -119 -42 -207 -4 -41 352 366 51 -447 -235 -311 -871 -17 -773 128 -240 38 343 294 64 -87 198 488 309 308 376 272 -351 -448 -100 -132 92 -430 67 -440 29 -10 -678 -290 -89 -531 -309 1 422 -417 -217 -399 100 208 -315 -13 105 242 329 281 -92 223 129 -283 -538 -621 -479 -178 -454 428 -245 92 -220 -255 -534 -107 128 430 -162 664 769 131 230 520 580 -210 89 -72 -309 449 214 214 323 212 313 43 -65 -352 -65 -22 -257 -434 275 29 529 505 -85 -106 509 249 -22 -306 -172 -514 -468 49 -534 -246 235 305 151 270 286 206 257 440 -284 -45 -225 -288 44 -286 -53 -230 272 694 144 36 262 223 141 432 9 -206 214 -134 -277 16 -179 -19 -84 387 55 -119 27 -375 -122 -43 -214 -4 -43 368 380 53 -458 -237 -308 -852 -16 -756 127 -243 39 351 300 66 -89 203 498 315 313 378 271 -349 -442 -98 -129 89 -421 66 -437 28 -10 -657 -279 -86 -511 -299 1 409 -409 -214 -394 98 204 -311 -13 104 242 330 280 -91 217 124 -269 -505 -581 -452 -171 -446 424 -244 91 -215 -248 -521 -105 126 428 -163 665 772 132 232 521 576 -208 87 -70 -302 439 209 209 315 207 304 41 -63 -335 -61 -21 -244 -416 267 28 518 497 -84 -105 504 248 -22 -301 -167 -491 -444 47