# # Data product developed by Dr. E. Thiemann from the # Laboratory for Atmospheric and Space Physics, Boulder, Colorado # in the frame of the PROBA2 guest investigator program. # # Please address your questions to E. Thiemann (thiemann@lasp.colorado.edu) and # to the LYRA Principal Investigator M. Dominique (marie.dominique@oma.be) # # PROBA2 data products are open to all. # Users should however refer to the following paper: http://arxiv.org/abs/1708.08833 # and acknowledge the instrument according to the rules described # at http://proba2.oma.be/data/termsOfUse in their papers and presentations # # Website reference http://proba2.oma.be/lyra/data/EarthAtmosphere/ # # Description: # Summed neutral N2 and O number density profiles, spanning altitudes between 150 and 400 km # retrieved from LYRA data acquired during occultations by the unit 3 (backup unit) zirconium # channel (bandpass: 1-2 nm + 6-20 nm). # # Radial distance is the distance from the center of Earth expressed in km to which the density corresponds. # Density O-N2 provides the summed number density of neutral O and N2 in units of radial distance and cm^-3. # The systematic error is a signed value (asymmetric) in fractional units and is primarily from the error made by # assuming that the absorption cross-sections of O and N2 are equal; a secondary source of systematic error is # from using a single-scale height atmosphere in the reference atmosphere used by the retrieval algorithm. # The random error is an unsigned value (to be applied symmetrically to the measurement) in fractional # units and gathers the uncertainties from solar spectra, solar variability and measurement noise. # Both uncertainties are described in http://arxiv.org/abs/1708.08833. # The Longitude and Latitude (in degrees) columns refer to the tangential point along the # line-of-sight, where most of the absorption occurs. # # Scale height = 61.739472 km # Date (UTC) = 2013-01-09T09:47:31.755 # Date (julian) = 2456301.90800642 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6479.1194 2.6234972e+11 0.022072985 0.025986728 105.04927 40.953678 6481.2943 2.1049712e+11 0.028496956 0.026642570 105.12769 40.838464 6483.4693 1.6986063e+11 0.034809364 0.027298411 105.20450 40.723251 6485.6442 1.3825003e+11 0.040924641 0.027954252 105.28435 40.603471 6487.8191 1.1384499e+11 0.046708799 0.028610094 105.37214 40.471796 6489.9940 9.6131050e+10 0.051768702 0.029265935 105.45743 40.343856 6492.1689 8.1974485e+10 0.056314716 0.029921776 105.53424 40.228643 6494.3439 7.1588480e+10 0.060093505 0.030577618 105.61105 40.113429 6496.5188 6.3348201e+10 0.063304003 0.031233459 105.68786 39.998217 6498.6937 5.6149507e+10 0.066134489 0.031889300 105.76467 39.883006 6500.8686 5.0307798e+10 0.068472654 0.032545142 105.84148 39.765488 6503.0435 4.5411295e+10 0.070101291 0.033200983 105.91828 39.646007 6505.2185 4.1246338e+10 0.070763432 0.033856824 105.99425 39.527364 6507.3934 3.7881952e+10 0.070917710 0.034512666 106.06680 39.412151 6509.5683 3.4923631e+10 0.072124843 0.035168507 106.13934 39.296937 6511.7432 3.2046232e+10 0.076830089 0.035824348 106.22072 39.167682 6513.9181 2.9233931e+10 0.087526322 0.036480190 106.30362 39.036007 6516.0931 2.6553530e+10 0.10603372 0.037136031 106.37821 38.917544 6518.2680 2.4220405e+10 0.12852069 0.037791872 106.45075 38.802332 6520.4429 2.2290622e+10 0.14985868 0.038447714 106.52330 38.687111 6522.6178 2.0538239e+10 0.16476043 0.039079036 106.59586 38.571881 6524.7927 1.8937209e+10 0.17084102 0.039708587 106.66841 38.456652 6526.9677 1.7436852e+10 0.17442688 0.040682572 106.74095 38.341439 6529.1426 1.6058347e+10 0.17627098 0.042462913 106.81349 38.226226 6531.3175 1.4789219e+10 0.17812952 0.045690814 106.88603 38.111013 6533.4924 1.3617075e+10 0.17951841 0.047728854 106.95857 37.995799 6535.6673 1.2566554e+10 0.17860750 0.047934805 107.02928 37.880586 6537.8423 1.1594234e+10 0.17868169 0.049082317 107.09756 37.765372 6540.0172 1.0735377e+10 0.17833808 0.050862221 107.16584 37.650159 6542.1921 9.9548485e+09 0.17603059 0.051075172 107.23411 37.534946 6544.3670 9.2542564e+09 0.17431149 0.051942087 107.30238 37.419732 6546.5419 8.6233688e+09 0.17261647 0.052910461 107.37066 37.304519 6548.7169 8.0382963e+09 0.17097929 0.053881727 107.43893 37.189306 6550.8918 7.5261768e+09 0.16942627 0.055208655 107.50721 37.074092 6553.0667 7.0667283e+09 0.16811087 0.055301535 107.57548 36.958879 6555.2416 6.6523616e+09 0.16602952 0.054650341 107.64375 36.843665 6557.4165 6.2798282e+09 0.16351365 0.053605015 107.71203 36.728454 6559.5915 5.9204912e+09 0.16040686 0.052320421 107.78030 36.613242 6561.7664 5.5826679e+09 0.15687677 0.050995023 107.84858 36.498029 6563.9413 5.2685027e+09 0.15275623 0.048839493 107.91685 36.382816 6566.1162 4.9705963e+09 0.14931848 0.047117135 107.98356 36.267596 6568.2911 4.6994636e+09 0.14675527 0.045504030 108.04758 36.152365 6570.4661 4.4516743e+09 0.14468174 0.044724449 108.11159 36.037135 6572.6410 4.2195597e+09 0.14287050 0.043863080 108.17560 35.921922 6574.8159 3.9998242e+09 0.14084822 0.042463128 108.23961 35.806709 6576.9908 3.7989236e+09 0.13863194 0.040230932 108.30652 35.691496 6579.1657 3.6201092e+09 0.13586884 0.036979380 108.37480 35.576282 6581.3407 3.4476747e+09 0.13371096 0.035493451 108.44163 35.461069 6583.5156 3.2797052e+09 0.13184249 0.034760700 108.50563 35.345855 6585.6905 3.1210645e+09 0.12980060 0.033418730 108.56964 35.230642 6587.8654 2.9764708e+09 0.12819838 0.033350114 108.63365 35.115429 6590.0403 2.8434610e+09 0.12605562 0.030987020 108.69766 35.000215 6592.2153 2.7142978e+09 0.12342978 0.027864438 108.75889 34.885002 6594.3902 2.5942627e+09 0.12088694 0.025958331 108.81863 34.769789 6596.5651 2.4817963e+09 0.11799223 0.025724705 108.87968 34.654575 6598.7400 2.3806648e+09 0.11575411 0.025053851 108.94369 34.539362 6600.9149 2.2792264e+09 0.11524886 0.026870832 109.00770 34.424148 6603.0899 2.1824990e+09 0.11383969 0.026610074 109.06759 34.308937 6605.2648 2.0905513e+09 0.11265440 0.026887177 109.12733 34.193725 6607.4397 2.0017422e+09 0.11056145 0.024838744 109.18972 34.078512 6609.6146 1.9199788e+09 0.10699858 0.023888504 109.25373 33.963299 6611.7895 1.8330226e+09 0.10388655 0.024454960 109.31892 33.844876 6613.9645 1.7427630e+09 0.10244131 0.023927454 109.38719 33.718077 6616.1394 1.6471384e+09 0.10075547 0.023304175 109.45354 33.593898 6618.3143 1.5550990e+09 0.10028092 0.024008133 109.51328 33.478668 6620.4892 1.4795710e+09 0.099840587 0.024924850 109.57303 33.363437 6622.6641 1.4130032e+09 0.098799272 0.024581220 109.63277 33.248223 6624.8391 1.3533270e+09 0.097568222 0.025311456 109.69251 33.133011 6627.0140 1.2965621e+09 0.095767724 0.025322212 109.75225 33.017799 6629.1889 1.2377180e+09 0.094969543 0.026074950 109.81199 32.902585 6631.3638 1.1840996e+09 0.093479264 0.025967723 109.87173 32.787372 6633.5387 1.1330068e+09 0.092284642 0.026246312 109.93147 32.672159 6635.7137 1.0884123e+09 0.090896593 0.026506812 109.99121 32.556946 6637.8886 1.0480021e+09 0.089859953 0.025726210 110.04731 32.445371 6640.0635 1.0097881e+09 0.089729714 0.025262882 110.10279 32.334424 6642.2384 9.7470267e+08 0.089714732 0.025161453 110.16043 32.221303 6644.4133 9.3900483e+08 0.088647377 0.025388280 110.22017 32.106090 6646.5883 9.0083500e+08 0.087540416 0.026224652 110.27920 31.990877 6648.7632 8.6124114e+08 0.086342610 0.027475162 110.33468 31.875664 6650.9381 8.2528664e+08 0.085826299 0.026469996 110.39015 31.760452 6653.1130 7.9501233e+08 0.085303377 0.027583367 110.44914 31.648749 6655.2879 7.6524853e+08 0.083785216 0.027729195 110.50888 31.537803 6657.4629 7.3433697e+08 0.081890531 0.029438018 110.56657 31.424813 6659.6378 7.0195633e+08 0.080289636 0.031701556 110.62204 31.309599 6661.8127 6.7550120e+08 0.078683057 0.032948877 110.67752 31.194384 6663.9876 6.5206463e+08 0.077205406 0.032209518 110.73300 31.079154 6666.1625 6.2986537e+08 0.077336730 0.026940269 110.78848 30.963923 6668.3375 6.0851988e+08 0.076581460 0.027769406 110.84396 30.852088 6670.5124 5.8003715e+08 0.076499222 0.027091254 110.89943 30.741142 6672.6873 5.5567584e+08 0.076374565 0.027277972 110.95490 30.628280 6674.8622 5.3456703e+08 0.075163033 0.029682133 111.01037 30.513067 6677.0371 5.1727681e+08 0.073059961 0.032305415 111.06540 30.398304 6679.2121 5.0292875e+08 0.072661973 0.030092532 111.11660 30.287358 6681.3870 4.8545654e+08 0.073754423 0.029954246 111.16781 30.176412 6683.5619 4.6626431e+08 0.074264459 0.032012056 111.22831 30.049672 6685.7368 4.4752074e+08 0.073936025 0.033483104 111.29170 29.917997 6687.9117 4.3075853e+08 0.071712203 0.033834412 111.34946 29.801069 6690.0867 4.1342808e+08 0.069798859 0.033105932 111.40494 29.690123 6692.2616 3.9631986e+08 0.068835906 0.032461569 111.45884 29.577607 6694.4365 3.8124643e+08 0.068079226 0.030649246 111.51005 29.462394 6696.6114 3.6702424e+08 0.067796619 0.029929819 111.56136 29.347285 6698.7863 3.5835734e+08 0.066579679 0.031297162 111.61683 29.236339 6700.9613 3.4934750e+08 0.064708184 0.031380713 111.67231 29.125393 6703.1362 3.3515577e+08 0.064441824 0.034016006 111.72487 29.011541 6705.3111 3.1987821e+08 0.064581730 0.037221683 111.77608 28.896328 6707.4860 3.0677834e+08 0.064219310 0.040117204 111.82975 28.777205 6709.6609 2.9537560e+08 0.063308473 0.040712152 111.88827 28.650406 6711.8359 2.8579426e+08 0.061278459 0.041643214 111.94470 28.526932 6714.0108 2.7594107e+08 0.059181869 0.047304219 111.99590 28.411720 6716.1857 2.6257626e+08 0.057645383 0.048674881 112.04711 28.296508 6718.3606 2.5267455e+08 0.055590601 0.050374055 112.09832 28.185305 6720.5355 2.4289962e+08 0.055271242 0.050357714 112.14953 28.074343 6722.7105 2.3485602e+08 0.054788166 0.049726889 112.20514 27.953872 6724.8854 2.2726679e+08 0.050910599 0.042533157 112.26366 27.827074 6727.0603 2.1988288e+08 0.049103966 0.040880047 112.31816 27.706647 6729.2352 2.1377905e+08 0.048714671 0.040888646 112.36937 27.591433 6731.4101 2.1039807e+08 0.046902008 0.042566282 112.42057 27.477101 6733.5851 2.0820518e+08 0.045724059 0.047100776 112.47178 27.366154 6735.7600 2.0392067e+08 0.046865763 0.050100209 112.52298 27.255208 6737.9349 2.0022711e+08 0.048206559 0.057113717 112.57629 27.130582 6740.1098 1.9014620e+08 0.048031861 0.064237972 112.62994 27.003784 6742.2847 1.8166771e+08 0.045502644 0.069304576 112.68160 26.886398 6744.4597 1.7459777e+08 0.041210435 0.078148948 112.73281 26.771185 6746.6346 1.6732930e+08 0.037794749 0.071609565 112.78201 26.657973 6748.8095 1.6508237e+08 0.036316580 0.071275712 112.82895 26.547028 6750.9844 1.5755063e+08 0.033416172 0.073685069 112.87734 26.434094 6753.1593 1.4844762e+08 0.030543872 0.073492946 112.93586 26.307296 6755.3343 1.4200612e+08 0.028448236 0.074458793 112.99352 26.181686 6757.5092 1.3658572e+08 0.026527007 0.075194829 113.04045 26.070739 6759.6841 1.3575308e+08 0.027265707 0.075985039 113.08739 25.959793 6761.8590 1.3083338e+08 0.030366558 0.078039197 113.13924 25.837251 6764.0339 1.2708247e+08 0.033730924 0.079484912 113.19288 25.710453 6766.2089 1.2370114e+08 0.035113147 0.080186193 113.24196 25.594450 6768.3838 1.2076006e+08 0.031443808 0.082236958 113.28890 25.483504 6770.5587 1.2053736e+08 0.027001927 0.088234795 113.33810 25.365562 6772.7336 1.1663795e+08 0.022977499 0.093509932 113.39175 25.233887 6774.9085 1.1202046e+08 0.018945048 0.098785069 113.44540 25.103612 6777.0835 1.1062185e+08 0.014935223 0.10406021 113.49904 24.976813 6779.2584 1.0538517e+08 0.010884085 0.10933534 113.55110 24.853764 6781.4333 1.0020128e+08 0.0068213130 0.11461048 113.59804 24.742818 6783.6082 98948277. 0.0028182272 0.11988562 113.64498 24.631872 6785.7831 94074877. -0.0012587130 0.12516075 113.69791 24.506770 6787.9581 93102874. -0.0052490722 0.13043589 113.75155 24.379972 6790.1330 87437348. -0.0093699842 0.13571103 113.80520 24.253174 6792.3079 79166818. -0.013625582 0.14098617 113.85884 24.126376 6794.4828 80032076. -0.017556956 0.14626130 113.90718 24.012133 6796.6577 77160923. -0.021649730 0.15153644 113.95412 23.901187 6798.8327 77224005. -0.025620328 0.15681158 114.00406 23.783131 6801.0076 76871040. -0.029630350 0.16208671 114.05770 23.656333 6803.1825 74555119. -0.033787362 0.16736185 114.10941 23.529535 6805.3574 74494271. -0.037860847 0.17263699 114.15818 23.402736 6807.5323 68917913. -0.042410017 0.17791212 114.20864 23.275937 6809.7073 63980340. -0.047159482 0.18318726 114.26229 23.149139 6811.8822 60056386. -0.052182837 0.18846240 114.31449 23.022341 6814.0571 58568681. -0.057459767 0.19373754 114.36325 22.895543 6816.2320 59258523. -0.063334961 0.19901267 114.41157 22.773704 6818.4069 55160660. -0.073235359 0.20428781 114.45851 22.667025 6820.5819 52530574. -0.11054782 0.20956295 114.50545 22.560347 6822.7568 49168940. -0.088213201 0.21483808 114.55404 22.435501 6824.9317 47293997. -0.027758443 0.22011322 114.60281 22.308704