File name: Pandora246s1_IowaCityIA-WHS_20250215_L2Fit_fwvt1c2d20230109p1-8.txt
File generation date: 20250216T062503.9Z
Data description: Level 2 spectral fitting results file
Data file version: fwvt1c2p1-8
Local principal investigator: 
Network principal investigator: Alexander Cede
Instrument type: Pandora
Instrument number: 246
Spectrometer number: 1
Processing software version used: BlickP v1.8.70
Instrument operation file used: Pandora246_OF_v1d20221122.txt
Instrument calibration file used: Pandora246s1_CF_v2d20230109.txt
Level 1 file used: Pandora246s1_IowaCityIA-WHS_20250215_L1_smca1c2d20230109p1-8.txt
Full location name: West High School, Iowa City, IA
Short location name: IowaCityIA-WHS
Country of location: United States
Location latitude [deg]: 41.6548
Location longitude [deg]: -91.5827
Location altitude [m]: 235
Local noon date: 20250215
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 session based on session 1
First and last pixel inside fitting window: 1617 1766
Nominal wavelengths inside fitting window [nm]: 492.0802 492.2014 492.3225 492.4437 492.5648 492.6859 492.8070 492.9281 493.0491 493.1702 493.2912 493.4122 493.5332 493.6542 493.7751 493.8961 494.0170 494.1379 494.2588 494.3797 494.5005 494.6214 494.7422 494.8630 494.9838 495.1046 495.2253 495.3461 495.4668 495.5875 495.7082 495.8289 495.9495 496.0702 496.1908 496.3114 496.4320 496.5526 496.6731 496.7937 496.9142 497.0347 497.1552 497.2757 497.3961 497.5166 497.6370 497.7574 497.8778 497.9982 498.1185 498.2389 498.3592 498.4795 498.5998 498.7201 498.8403 498.9606 499.0808 499.2010 499.3212 499.4414 499.5615 499.6817 499.8018 499.9219 500.0420 500.1621 500.2821 500.4022 500.5222 500.6422 500.7622 500.8822 501.0021 501.1221 501.2420 501.3619 501.4818 501.6017 501.7215 501.8414 501.9612 502.0810 502.2008 502.3205 502.4403 502.5600 502.6798 502.7995 502.9192 503.0388 503.1585 503.2781 503.3977 503.5173 503.6369 503.7565 503.8761 503.9956 504.1151 504.2346 504.3541 504.4736 504.5930 504.7125 504.8319 504.9513 505.0707 505.1900 505.3094 505.4287 505.5480 505.6673 505.7866 505.9059 506.0251 506.1443 506.2636 506.3828 506.5019 506.6211 506.7403 506.8594 506.9785 507.0976 507.2167 507.3357 507.4548 507.5738 507.6928 507.8118 507.9308 508.0498 508.1687 508.2876 508.4065 508.5254 508.6443 508.7632 508.8820 509.0008 509.1196 509.2384 509.3572 509.4760 509.5947 509.7134 509.8321 509.9508
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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
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SQ 20250215T204545.4Z 9177.865109 574 1 54.61 2 63.54 220.28 141.26 3.29 0.00 1 0.00 1 0 15 2.019e-03 2.024e-03 2.474e-04 2.472e-04 1.493211e+03 1.429872e+01 1.099580e+02 -6.000000e+00 1.116556e+02 273.32 -2.00 20.00 -2.00 505.27 0.00e+00 2.883192e-04 6.724713e-06 1.769449e-05 -6.000000e+00 5.611890e-05 273.32 -2.00 20.00 -2.00 500.49 0.00e+00 1.209230e-01 4.944019e-03 1.233368e-02 -6.000000e+00 4.078858e-02 224.77 -2.00 3.52 -2.00 502.08 0.00e+00 2.232 0.000 489.00 513.00 1 5.1312e+00 3.7842e-04 3.2973e-03 -6.0000e+00 3.1232e-03 -7.7941e-04 9.6950e-05 3.3713e-04 -6.0000e+00 8.0425e-04 8.3887e-03 2.9770e-03 2.7148e-05 1.5881e-05 -6.0000e+00 2.2751e-04 -2.8316e-02 2.9240e-05 10 0 0 10 0 0 99.98 23.97 1.67 -0.02832 -0.00767 213 21 1 4 0 256.360 32.25 19.97 23.97 10.83 3.0 855.34 -57 -51 -14 -127 -119 337 420 249 124 129 175 -70 -163 -39 -65 -210 -170 43 -81 -292 35 112 42 191 243 82 143 86 -300 -118 61 -140 98 445 -175 -475 -131 47 -50 112 285 167 158 151 138 135 141 117 38 -282 -343 -382 -352 -136 57 -166 -246 -175 -121 136 361 333 235 183 87 71 38 89 -99 -209 -24 -176 -216 2 -154 -383 -222 26 -72 -156 -135 -318 -365 -44 -46 -258 -231 -91 -33 3 213 417 227 -36 97 173 -64 -25 -77 -115 -306 -339 -122 -119 -419 -306 -18 -72 99 148 44 57 127 152 187 331 323 225 161 357 216 155 268 103 -257 69 205 142 259 181 -263 -78 14 -198 -28 162 -258 -473 -223 -105 -44 144 329 113 66 -53 -163 -103 49 74 -56 -50 -14 -127 -121 348 435 260 129 133 180 -72 -166 -39 -65 -212 -172 44 -84 -304 37 117 44 201 255 86 149 89 -306 -118 62 -139 100 458 -183 -494 -135 49 -51 114 289 170 163 155 143 140 145 120 38 -281 -338 -374 -342 -133 56 -167 -249 -179 -123 138 367 340 237 187 88 71 38 87 -98 -204 -24 -172 -211 2 -153 -377 -217 25 -69 -150 -130 -309 -353 -43 -45 -253 -228 -90 -32 3 212 416 228 -37 97 171 -62 -24 -74 -109 -291 -325 -118 -117 -420 -307 -18 -71 97 145 44 57 128 153 189 336 328 229 162 357 214 154 265 102 -254 68 201 141 256 179 -258 -75 14 -190 -27 158 -254 -468 -220 -105 -44 144 331 112 66 -53 -162 -100 48 72
SQ 20250215T225837.3Z 9177.957376 657 1 55.23 2 83.51 247.12 131.18 47.93 0.00 1 0.00 1 0 22 3.751e-03 3.745e-03 7.677e-04 7.670e-04 4.284391e+03 4.736937e+01 3.277910e+02 -6.000000e+00 2.074084e+02 273.32 -2.00 20.00 -2.00 505.31 0.00e+00 1.239649e-03 2.101732e-05 5.974965e-05 -6.000000e+00 1.045954e-04 273.32 -2.00 20.00 -2.00 500.64 0.00e+00 9.078714e-01 1.525183e-02 2.059455e-02 -6.000000e+00 7.662080e-02 224.77 -2.00 3.52 -2.00 502.21 0.00e+00 8.032 0.010 489.00 513.00 1 6.4770e+00 1.1657e-03 1.1485e-02 -6.0000e+00 5.8506e-03 -3.1475e-02 2.9649e-04 8.5528e-04 -6.0000e+00 1.5352e-03 9.0799e-04 2.1016e-02 8.3413e-05 5.4900e-05 -6.0000e+00 4.2323e-04 -2.4075e-02 -8.2506e-04 10 0 0 10 0 0 99.79 23.82 2.28 -0.02407 0.12170 33 3 1 4 0 1673.550 32.25 20.10 23.82 8.83 3.0 838.45 900000 -191 -144 -45 60 541 840 634 333 19 67 -355 -357 -282 -446 -315 -329 -47 147 -120 179 211 292 281 359 104 455 -91 -344 -451 -310 -529 198 617 25 -300 -183 20 29 -23 216 232 224 285 365 499 328 147 -65 -485 -591 -733 -835 -394 18 -213 65 224 -153 247 562 580 691 205 249 216 -82 364 -311 -546 -155 -198 -404 177 -378 -462 -481 -443 -20 -606 -263 -600 -648 -161 -293 -390 -567 -56 -98 23 56 377 347 304 396 425 -74 -154 -192 -496 -615 -659 -271 -105 -535 -180 52 -258 197 136 -204 68 390 450 449 692 693 700 357 541 471 332 258 49 -238 109 343 197 397 436 -259 -112 -521 -414 -356 40 -345 -696 -386 -118 2 164 558 347 243 565 -156 -335 -376 -128 900000 -181 -138 -44 59 536 843 642 331 19 66 -350 -347 -276 -437 -305 -324 -47 147 -122 183 216 294 284 364 106 458 -92 -343 -448 -304 -524 196 625 26 -309 -188 21 30 -23 217 234 229 289 373 509 333 150 -65 -479 -580 -708 -803 -382 17 -213 66 225 -155 249 567 587 701 209 251 215 -83 359 -305 -532 -150 -192 -398 175 -378 -458 -471 -427 -19 -592 -252 -582 -635 -158 -287 -384 -561 -55 -97 23 56 381 347 304 398 419 -72 -149 -185 -474 -590 -633 -263 -103 -538 -181 52 -256 194 135 -206 68 396 461 463 704 709 717 364 554 476 332 258 50 -241 110 347 200 401 439 -260 -111 -522 -412 -356 40 -351 -712 -399 -121 2 171 581 363 254 581 -159 -342 -380 -129