# # 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 = 86.359615 km # Date (UTC) = 2014-12-10T10:44:07.085 # Date (julian) = 2457001.94730423 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6499.2340 4.8820761e+10 0.043644800 0.032052219 95.376237 27.371666 6502.1780 4.4287218e+10 0.054178136 0.032939986 95.442988 27.232026 6505.1221 4.0282236e+10 0.064953379 0.033827754 95.509732 27.088266 6508.0661 3.6869712e+10 0.076140675 0.034715522 95.576477 26.945773 6511.0101 3.3841738e+10 0.087853633 0.035603290 95.643225 26.807148 6513.9542 3.1064457e+10 0.10014526 0.036491058 95.708436 26.666986 6516.8982 2.8499469e+10 0.11309902 0.037378825 95.770045 26.523227 6519.8423 2.6071698e+10 0.12674888 0.038266593 95.833463 26.381266 6522.7863 2.3810877e+10 0.13898556 0.039123156 95.900220 26.242622 6525.7304 2.1806685e+10 0.14499451 0.039698861 95.966972 26.103985 6528.6744 1.9934413e+10 0.15065782 0.041977480 96.033716 25.965360 6531.6184 1.8231576e+10 0.15565731 0.046128817 96.098118 25.824391 6534.5625 1.6613781e+10 0.15911337 0.048101903 96.159731 25.680632 6537.5065 1.5004313e+10 0.16121174 0.048924026 96.225260 25.530669 6540.4506 1.3499447e+10 0.16323450 0.051066957 96.294571 25.374712 6543.3946 1.2103603e+10 0.16394419 0.051485457 96.361889 25.232229 6546.3386 1.0933711e+10 0.16462274 0.052743172 96.428637 25.093603 6549.2827 9.9504578e+09 0.16467976 0.054254354 96.491128 24.954963 6552.2267 9.0721468e+09 0.16378745 0.055529701 96.552745 24.816319 6555.1708 8.2919639e+09 0.16116444 0.054709883 96.614358 24.673162 6558.1148 7.5911346e+09 0.15784839 0.053141478 96.675971 24.529402 6561.0588 6.9732768e+09 0.15405385 0.051343683 96.737584 24.390441 6564.0029 6.4244446e+09 0.15082620 0.048770289 96.799196 24.251815 6566.9469 5.9335820e+09 0.14879694 0.046647211 96.860805 24.113189 6569.8910 5.4891342e+09 0.14714209 0.044910413 96.922414 23.974563 6572.8350 5.0978269e+09 0.14524513 0.043751968 96.984035 23.835919 6575.7791 4.7456789e+09 0.14277389 0.041593076 97.045655 23.697277 6578.7231 4.4386686e+09 0.13998476 0.037507769 97.107268 23.558652 6581.6671 4.1514959e+09 0.13760910 0.035394592 97.169158 23.417530 6584.6112 3.8577284e+09 0.13554647 0.034182582 97.232691 23.261574 6587.5552 3.5763217e+09 0.13363757 0.033281384 97.295432 23.112772 6590.4993 3.3157223e+09 0.13117847 0.030133374 97.357045 22.974146 6593.4433 3.0971392e+09 0.12835223 0.026690089 97.418661 22.835512 6596.3873 2.9097270e+09 0.12489765 0.025725513 97.480282 22.696868 6599.3314 2.7367623e+09 0.12263537 0.024949661 97.539240 22.558234 6602.2754 2.5714878e+09 0.12200024 0.027281601 97.595718 22.419609 6605.2195 2.4210942e+09 0.12044996 0.026849154 97.652195 22.280984 6608.1635 2.2857303e+09 0.11738153 0.023728049 97.708672 22.142358 6611.1075 2.1630398e+09 0.11258785 0.024889875 97.768343 22.003733 6614.0516 2.0527122e+09 0.11028969 0.023904953 97.829952 21.865107 6616.9956 1.9280920e+09 0.10784370 0.023438562 97.892862 21.714790 6619.9397 1.8084370e+09 0.10671937 0.024752640 97.956400 21.558833 6622.8837 1.6923201e+09 0.10500690 0.024522779 98.013284 21.424053 6625.8277 1.5924298e+09 0.10353057 0.026385357 98.069769 21.290531 6628.7718 1.5049095e+09 0.10186258 0.026016449 98.126247 21.151941 6631.7158 1.4231463e+09 0.10016814 0.026003480 98.182724 21.013315 6634.6599 1.3559973e+09 0.098677436 0.026374977 98.239201 20.874690 6637.6039 1.2881318e+09 0.097206528 0.025865634 98.296388 20.734322 6640.5480 1.2207961e+09 0.097313057 0.025203609 98.359927 20.578365 6643.4920 1.1517779e+09 0.096943596 0.025266904 98.420860 20.430697 6646.4360 1.0863762e+09 0.095695736 0.026145854 98.477345 20.297188 6649.3801 1.0332738e+09 0.094359444 0.027109770 98.533827 20.161521 6652.3241 9.8479411e+08 0.093799634 0.027339699 98.590304 20.022897 6655.2682 9.3463498e+08 0.092285272 0.027721020 98.650129 19.878793 6658.2122 8.8797649e+08 0.089943374 0.030437421 98.713667 19.728614 6661.1562 8.4002210e+08 0.087829700 0.032614527 98.768145 19.587017 6664.1003 7.9596907e+08 0.085891630 0.031839158 98.819487 19.448390 6667.0443 7.6140749e+08 0.085448914 0.027119738 98.874913 19.313848 6669.9884 7.2558323e+08 0.084226510 0.027340583 98.931390 19.180357 6672.9324 6.9002275e+08 0.083504187 0.027420038 98.993859 19.027806 6675.8764 6.5697787e+08 0.080573708 0.031477075 99.055985 18.874447 6678.8205 6.2658140e+08 0.078673286 0.030387837 99.107327 18.740956 6681.7645 5.9843292e+08 0.079434116 0.030243893 99.160727 18.603672 6684.7086 5.6734458e+08 0.079434772 0.032690049 99.224265 18.447717 6687.6526 5.3827709e+08 0.077056491 0.033978932 99.282467 18.301591 6690.5967 5.1167638e+08 0.074637372 0.033047487 99.333809 18.168099 6693.5407 4.9058910e+08 0.073453058 0.031418597 99.388296 18.023603 6696.4847 4.6347676e+08 0.073121544 0.029877183 99.446056 17.867647 6699.4288 4.3534270e+08 0.071663942 0.031194795 99.502849 17.728719 6702.3728 4.1388234e+08 0.069900926 0.033174426 99.559334 17.595210 6705.3169 3.9529542e+08 0.070310595 0.037231915 99.616853 17.448178 6708.2609 3.8043851e+08 0.069805531 0.040327687 99.674101 17.299332 6711.2049 3.6371510e+08 0.067697546 0.040925398 99.725443 17.165840 6714.1490 3.4317161e+08 0.064877016 0.047314609 99.777635 17.029378 6717.0930 3.2930405e+08 0.062309527 0.049868515 99.835400 16.873423 6720.0371 3.1561415e+08 0.060399808 0.050415472 99.893163 16.719783 6722.9811 3.0032540e+08 0.059747199 0.049392304 99.950923 16.569603 6725.9251 2.8605569e+08 0.054865994 0.040998126 100.00439 16.430600 6728.8692 2.6877235e+08 0.053948854 0.040860022 100.05573 16.297109 6731.8132 2.5479335e+08 0.051559304 0.043368497 100.11170 16.151568 6734.7573 2.4175317e+08 0.051013901 0.049308037 100.16946 16.001387 6737.7013 2.3135923e+08 0.053082863 0.056369604 100.22723 15.851185 6740.6454 2.2397897e+08 0.052459084 0.065152833 100.28333 15.705323 6743.5894 2.1955597e+08 0.047189654 0.075023461 100.33468 15.571832 6746.5334 2.1589449e+08 0.042716664 0.072785525 100.38803 15.433133 6749.4775 2.0993768e+08 0.039567258 0.072147200 100.44579 15.282954 6752.4215 2.0403905e+08 0.035396273 0.073646705 100.50355 15.132774 6755.3656 1.9650623e+08 0.033176582 0.074445072 100.56131 14.982594 6758.3096 1.8625141e+08 0.032029258 0.074360007 100.61417 14.832413 6761.2536 1.7796034e+08 0.033606659 0.077989180 100.66684 14.682232 6764.1977 1.6784912e+08 0.039554382 0.079492756 100.72460 14.532052 6767.1417 1.6031953e+08 0.040097107 0.081817075 100.78236 14.381873 6770.0858 1.5315748e+08 0.033995305 0.087087710 100.84012 14.231693 6773.0298 1.4741049e+08 0.028761838 0.094228304 100.89410 14.081499 6775.9738 1.4228200e+08 0.023522903 0.10136890 100.94609 13.931296 6778.9179 1.3764301e+08 0.018274126 0.10850949 101.00342 13.786456 6781.8619 1.3034699e+08 0.013100603 0.11565009 101.06006 13.640935 6784.8060 1.2667879e+08 0.0078377621 0.12279068 101.11205 13.490754 6787.7500 1.2284993e+08 0.0025866339 0.12993127 101.16670 13.340573 6790.6940 1.1818622e+08 -0.0026402597 0.13707187 101.22446 13.190393 6793.6381 1.1548098e+08 -0.0079123881 0.14421246 101.27800 13.040214 6796.5821 1.0991803e+08 -0.013109083 0.15135306 101.33001 12.890058 6799.5262 1.0783607e+08 -0.018389985 0.15849365 101.38775 12.745629 6802.4702 1.0484298e+08 -0.023646011 0.16563424 101.44595 12.593912 6805.4143 1.0114051e+08 -0.028879984 0.17277484 101.50536 12.422273 6808.3583 97035780. -0.034102766 0.17991543 101.55918 12.266808 6811.3023 95089819. -0.039374559 0.18705603 101.61130 12.116758 6814.2464 95213643. -0.044664952 0.19419662 101.66906 11.972354 6817.1904 92514658. -0.049845769 0.20133721 101.72730 11.820020 6820.1345 87935400. -0.054945118 0.20847781 101.78672 11.648382 6823.0785 82425647. -0.059998234 0.21561840 101.84036 11.497888 6826.0225 79296990. -0.065106160 0.22275900 101.89268 11.352255 6828.9666 76405977. -0.070214341 0.22989959 101.95210 11.180617 6831.9106 74478862. -0.075351075 0.23704018 102.00757 11.023421 6834.8547 75733861. -0.080573998 0.24418078 102.05955 10.879018 6837.7987 75941756. -0.085767524 0.25132137 102.11748 10.712852 6840.7427 76183739. -0.090959100 0.25846197 102.17478 10.548949 6843.6868 72107097. -0.096060040 0.26560256 102.22677 10.404524 6846.6308 67869986. -0.10115546 0.27274315 102.28287 10.245044 6849.5749 67276403. -0.10633280 0.27988375 102.34228 10.073659 6852.5189 66541275. -0.11150721 0.28702434 102.40170 9.9086218 6855.4630 64958972. -0.11666438 0.29416494 102.46110 9.7435997 6858.4070 61518188. -0.12178395 0.30130553 102.52043 9.5787830 6861.3510 60088903. -0.12694707 0.30844612 102.57244 9.4343419 6864.2951 59953493. -0.13213443 0.31558672 102.62649 9.2823641 6867.2391 59469597. -0.13731303 0.32272731 102.68590 9.1107262 6870.1832 59126860. -0.14249246 0.32986791 102.74531 8.9441234 6873.1272 57166915. -0.14765323 0.33700850 102.80473 8.7790868 6876.0712 54313026. -0.15280329 0.34414909 102.86414 8.6140493 6879.0153 54834370. -0.15798046 0.35128969 102.92355 8.4490334 6881.9593 55581329. -0.16313963 0.35843028 102.98152 8.2840191 6884.9034 55034755. -0.16827228 0.36557087 103.03433 8.1189828 6887.8474 52880434. -0.17338863 0.37271147 103.09875 7.9345996 6890.7914 50261051. -0.17850963 0.37985206 103.16405 7.7505165 6893.7355 46296350. -0.18363161 0.38699266 103.22347 7.5788797 6896.6795 44148748. -0.18876134 0.39413325 103.28288 7.4131163 6899.6236 44960149. -0.19388929 0.40127384 103.33981 7.2480797 6902.5676 45635946. -0.19901475 0.40841444 103.39263 7.0830445 6905.5117 50424207. -0.20411252 0.41555503 103.45964 6.8943370 6908.4557 49643907. -0.20923555 0.42269563 103.52339 6.7172492 6911.3997 50040796. -0.21435211 0.42983622 103.58291 6.5509136 6914.3438 46615169. -0.21950461 0.43697681 103.64453 6.3583673 6917.2878 45255714. -0.22464349 0.44411741 103.70449 6.1913630 6920.2319 42309439. -0.22981312 0.45125800 103.76442 6.0249455 6923.1759 39609030. -0.23499936 0.45839860 103.82603 5.8323992 6926.1199 41049424. -0.24009894 0.46553919 103.89485 5.6398499 6929.0640 37890949. -0.24532697 0.47267978 103.95925 5.4473260 6932.0080 37995555. -0.25048088 0.47982038 104.02012 5.2641185 6934.9521 38606941. -0.25563914 0.48696097 104.07953 5.0990811 6937.8961 39323228. -0.26082001 0.49410157 104.14076 4.9113820 6940.8401 39617347. -0.26606626 0.50124216 104.20642 4.7228806 6943.7842 38913672. -0.27145531 0.50838275 104.27399 4.5362851 6946.7282 35730520. -0.27722324 0.51552335 104.33560 4.3437388 6949.6723 35347189. -0.28351492 0.52266394 104.40437 4.1511896 6952.6163 32737004. -0.29631214 0.52980454 104.47659 3.9402225 6955.5603 28863186. -0.29609106 0.53694513 104.54799 3.7344673 6958.5044 27910237. -0.28523063 0.54408572 104.61538 3.5419186