# # 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 = 61.148569 km # Date (UTC) = 2014-12-23T09:28:46.860 # Date (julian) = 2457014.89498681 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6498.4445 7.5591261e+10 0.037929216 0.031814163 114.01172 29.448831 6500.6249 6.9570492e+10 0.046227126 0.032471637 114.06495 29.346166 6502.8052 6.3728996e+10 0.054789625 0.033129111 114.11819 29.243501 6504.9855 5.8336527e+10 0.063694837 0.033786586 114.17785 29.128438 6507.1659 5.2902223e+10 0.072875749 0.034444060 114.23774 29.012938 6509.3462 4.7858599e+10 0.082415525 0.035101534 114.29345 28.905502 6511.5265 4.3424770e+10 0.092409053 0.035759008 114.34668 28.802838 6513.7069 3.9651036e+10 0.10295477 0.036416482 114.39989 28.700173 6515.8872 3.6308974e+10 0.11403324 0.037073956 114.44935 28.597508 6518.0675 3.3202215e+10 0.12555950 0.037731430 114.49878 28.494843 6520.2479 3.0377653e+10 0.13753699 0.038388904 114.54961 28.392173 6522.4282 2.7832574e+10 0.14878319 0.039029384 114.60285 28.289494 6524.6085 2.5494198e+10 0.15579832 0.039643150 114.65609 28.186815 6526.7889 2.3396521e+10 0.16163675 0.040495139 114.70652 28.084147 6528.9692 2.1518131e+10 0.16614455 0.042211365 114.75595 27.981481 6531.1496 1.9777309e+10 0.17039286 0.045446354 114.80539 27.878816 6533.3299 1.8221411e+10 0.17448592 0.047659779 114.85482 27.776152 6535.5102 1.6774688e+10 0.17573137 0.048002965 114.90425 27.673488 6537.6906 1.5446556e+10 0.17671119 0.049010792 114.95368 27.570823 6539.8709 1.4271376e+10 0.17659653 0.050697818 115.00311 27.468158 6542.0512 1.3176478e+10 0.17412211 0.051021686 115.05254 27.365492 6544.2316 1.2179187e+10 0.17166721 0.051832193 115.10520 27.262816 6546.4119 1.1273414e+10 0.16947061 0.052803448 115.15844 27.160137 6548.5922 1.0443890e+10 0.16761185 0.053844505 115.21001 27.057461 6550.7726 9.6869427e+09 0.16588767 0.055178803 115.25564 26.954796 6552.9529 8.9900424e+09 0.16451797 0.055346923 115.30127 26.852131 6555.1332 8.3473738e+09 0.16270686 0.054741419 115.34914 26.749466 6557.3136 7.7742885e+09 0.16063648 0.053669563 115.39858 26.646802 6559.4939 7.2639108e+09 0.15821607 0.052331434 115.44801 26.544138 6561.6742 6.7903169e+09 0.15573347 0.051040433 115.49744 26.441473 6563.8546 6.3551026e+09 0.15312497 0.048939828 115.54687 26.338807 6566.0349 5.9556356e+09 0.15107241 0.047163139 115.59631 26.236138 6568.2152 5.5886231e+09 0.14978878 0.045573807 115.64574 26.133459 6570.3956 5.2633594e+09 0.14844454 0.044753650 115.69518 26.030780 6572.5759 4.9663159e+09 0.14679010 0.043900349 115.74195 25.928111 6574.7562 4.6902265e+09 0.14472092 0.042491785 115.78758 25.825446 6576.9366 4.4484477e+09 0.14236983 0.040293375 115.83348 25.723048 6579.1169 4.2245606e+09 0.13936498 0.037006227 115.88291 25.624185 6581.2972 4.0135777e+09 0.13688116 0.035506599 115.93234 25.525323 6583.4776 3.8087871e+09 0.13456184 0.034779937 115.98009 25.424786 6585.6579 3.6160278e+09 0.13205077 0.033444787 116.02572 25.322122 6587.8382 3.4444314e+09 0.13012889 0.033344093 116.07135 25.219457 6590.0186 3.2852323e+09 0.12805467 0.031027503 116.12007 25.116781 6592.1989 3.1453397e+09 0.12574951 0.027880318 116.16951 25.014102 6594.3793 3.0015819e+09 0.12372598 0.025964333 116.21929 24.909878 6596.5596 2.8468499e+09 0.12147973 0.025724730 116.27062 24.798656 6598.7399 2.6933416e+09 0.11999006 0.025053902 116.32196 24.687434 6600.9203 2.5466180e+09 0.12024468 0.026881747 116.36848 24.583427 6603.1006 2.4254793e+09 0.11955440 0.026603725 116.41410 24.480762 6605.2809 2.3248732e+09 0.11903050 0.026900715 116.45973 24.378097 6607.4613 2.2298581e+09 0.11757914 0.024796185 116.50536 24.275432 6609.6416 2.1341673e+09 0.11473408 0.023896514 116.55099 24.172766 6611.8219 2.0468895e+09 0.11230777 0.024434310 116.59663 24.072312 6614.0023 1.9557848e+09 0.11141898 0.023938935 116.64226 23.973437 6616.1826 1.8704875e+09 0.10997806 0.023310957 116.68790 23.874563 6618.3629 1.7925497e+09 0.10936159 0.024044851 116.73352 23.772072 6620.5433 1.7193781e+09 0.10853546 0.024942264 116.77915 23.669407 6622.7236 1.6508524e+09 0.10704177 0.024565395 116.82478 23.567974 6624.9039 1.5901410e+09 0.10534652 0.025346180 116.87041 23.469111 6627.0843 1.5276710e+09 0.10307337 0.025349361 116.91604 23.370249 6629.2646 1.4651138e+09 0.10174191 0.026061264 116.96266 23.259839 6631.4449 1.3949518e+09 0.099803272 0.025975962 117.00971 23.144339 6633.6253 1.3245207e+09 0.098207405 0.026261419 117.05626 23.034768 6635.8056 1.2637424e+09 0.096585326 0.026520600 117.10189 22.935906 6637.9859 1.2051436e+09 0.095613200 0.025678529 117.14752 22.837043 6640.1663 1.1608278e+09 0.095665417 0.025250308 117.19315 22.735409 6642.3466 1.1150488e+09 0.095848937 0.025165880 117.23879 22.632730 6644.5269 1.0760978e+09 0.094973324 0.025400557 117.28405 22.530421 6646.7073 1.0385881e+09 0.093972267 0.026286257 117.32588 22.431559 6648.8876 1.0005581e+09 0.092845259 0.027558454 117.36770 22.332696 6651.0679 9.6432190e+08 0.092512070 0.026536236 117.41397 22.228062 6653.2483 9.2620198e+08 0.092138635 0.027652425 117.46531 22.116840 6655.4286 8.8547093e+08 0.090760631 0.027787321 117.51541 22.006724 6657.6089 8.4219348e+08 0.089174797 0.029607473 117.55724 21.904059 6659.7893 8.0487525e+08 0.087765286 0.031669953 117.59906 21.801395 6661.9696 7.7833158e+08 0.086186083 0.033028797 117.64089 21.700622 6664.1500 7.5629339e+08 0.084755977 0.031657419 117.68273 21.601745 6666.3303 7.3736114e+08 0.084561575 0.026972956 117.72456 21.502869 6668.5106 7.0887421e+08 0.083454353 0.027922638 117.77465 21.393254 6670.6910 6.7907139e+08 0.083137288 0.027008524 117.82598 21.282032 6672.8713 6.5079893e+08 0.082669957 0.027384615 117.87226 21.177387 6675.0516 6.2553826e+08 0.080976489 0.029897237 117.91408 21.078525 6677.2320 6.0755906e+08 0.078666503 0.032028464 117.95591 20.979662 6679.4123 5.8281947e+08 0.078161057 0.029927071 117.99774 20.877370 6681.5926 5.6095326e+08 0.078886082 0.030112013 118.03956 20.774705 6683.7730 5.4145050e+08 0.079057176 0.032321365 118.08281 20.669710 6685.9533 5.2400822e+08 0.078486165 0.033711754 118.12987 20.558487 6688.1336 5.1105952e+08 0.075945775 0.033816037 118.17693 20.447265 6690.3140 4.9186806e+08 0.074219852 0.033079883 118.21910 20.347583 6692.4943 4.7582030e+08 0.073269807 0.032191328 118.26093 20.248707 6694.6746 4.6013362e+08 0.072563751 0.030315491 118.30436 20.146064 6696.8550 4.4234688e+08 0.072172690 0.030031008 118.35141 20.034842 6699.0353 4.2575879e+08 0.070906388 0.031557857 118.39847 19.923620 6701.2156 4.0958949e+08 0.069103607 0.031725848 118.43679 19.824355 6703.3960 3.9715357e+08 0.068926262 0.034666083 118.47481 19.725493 6705.5763 3.8572688e+08 0.068916625 0.037693162 118.51588 19.622458 6707.7566 3.7297602e+08 0.068503348 0.040078438 118.56294 19.511236 6709.9370 3.5850420e+08 0.067394415 0.040536581 118.60997 19.400076 6712.1173 3.4682327e+08 0.065152286 0.042047763 118.65182 19.301149 6714.2976 3.3526152e+08 0.062943938 0.047325785 118.69365 19.202286 6716.4780 3.2591492e+08 0.060960533 0.049105378 118.73741 19.098851 6718.6583 3.1617454e+08 0.058503706 0.050837687 118.78447 18.987629 6720.8386 3.0455110e+08 0.058385014 0.050322594 118.83138 18.876406 6723.0190 2.9152031e+08 0.057346778 0.049379530 118.87417 18.765168 6725.1993 2.7856562e+08 0.052979228 0.041451517 118.91695 18.653930 6727.3797 2.6816181e+08 0.051439495 0.040454583 118.95907 18.551293 6729.5600 2.6162070e+08 0.050444463 0.040672183 119.00090 18.452430 6731.7403 2.5528901e+08 0.048480260 0.043223397 119.04278 18.352764 6733.9207 2.4711819e+08 0.047244384 0.048922806 119.08556 18.241541 6736.1010 2.3820390e+08 0.048828540 0.050736798 119.12834 18.130318 6738.2813 2.2926102e+08 0.049914358 0.058869902 119.17423 18.019096 6740.4617 2.2279500e+08 0.049239986 0.064839024 119.22128 17.907873 6742.6420 2.1411734e+08 0.046132409 0.070175085 119.26667 17.798319 6744.8223 2.0318924e+08 0.042251030 0.078429460 119.30945 17.691374 6747.0027 1.9630191e+08 0.037356273 0.067360245 119.35198 17.584851 6749.1830 1.8925520e+08 0.036930295 0.072227829 119.39000 17.485988 6751.3633 1.8399336e+08 0.033504212 0.073865289 119.42803 17.387126 6753.5437 1.8115459e+08 0.031111091 0.074736684 119.46806 17.283045 6755.7240 1.7228199e+08 0.028659433 0.074287918 119.51084 17.171823 6757.9043 1.6928684e+08 0.027438860 0.073995648 119.55398 17.060598 6760.0847 1.6465859e+08 0.027914940 0.076222727 119.60104 16.949360 6762.2650 1.6020048e+08 0.031730240 0.077623376 119.64811 16.838121 6764.4453 1.5576070e+08 0.034440760 0.079504620 119.69197 16.730091 6766.6257 1.4682855e+08 0.034928885 0.081129025 119.73474 16.623147 6768.8060 1.4146641e+08 0.030364017 0.083756220 119.77752 16.514450 6770.9863 1.3678059e+08 0.026067358 0.089272006 119.82030 16.403228 6773.1667 1.3156550e+08 0.021908028 0.094560276 119.86307 16.292006 6775.3470 1.2780963e+08 0.017774523 0.099848546 119.90585 16.180785 6777.5273 1.2214759e+08 0.013611119 0.10513682 119.94863 16.069563 6779.7077 1.1893626e+08 0.0095302771 0.11042508 119.99141 15.961482 6781.8880 1.1897791e+08 0.0055751488 0.11571335 120.03418 15.854536 6784.0683 1.1149239e+08 0.0014329195 0.12100162 120.07696 15.745895 6786.2487 1.0587373e+08 -0.0026532819 0.12628989 120.11974 15.634673 6788.4290 1.0106039e+08 -0.0067209037 0.13157816 120.16252 15.523702 6790.6093 98507156. -0.010699109 0.13686643 120.20530 15.416758 6792.7897 98213130. -0.014570059 0.14215470 120.24808 15.309814 6794.9700 96326274. -0.018511808 0.14744297 120.29526 15.188323 6797.1504 91949538. -0.022577832 0.15273124 120.34415 15.061210 6799.3307 86552336. -0.026722718 0.15801951 120.38891 14.947727 6801.5110 79985015. -0.030986801 0.16330778 120.43169 14.840783 6803.6914 79023325. -0.034919237 0.16859605 120.47302 14.732392 6805.8717 80777325. -0.038678844 0.17388432 120.51152 14.621169 6808.0520 80168743. -0.042627336 0.17917259 120.55004 14.509967 6810.2324 78592807. -0.046686651 0.18446086 120.59281 14.402988 6812.4127 71987878. -0.051241123 0.18974913 120.63559 14.296028 6814.5930 71145328. -0.055400965 0.19503740 120.68242 14.178944 6816.7734 68065837. -0.059908890 0.20032567 120.73131 14.056720 6818.9537 64465039. -0.064709869 0.20561394 120.77378 13.941292 6821.1340 60384088. -0.069954986 0.21090221 120.81228 13.830070 6823.3144 57037242. -0.075694783 0.21619048 120.85369 13.715766 6825.4947 54735343. -0.082102691 0.22147875 120.90258 13.593541 6827.6750 49746803. -0.092516953 0.22676702 120.94904 13.474903 6829.8554 45341425. -0.12658209 0.23205528 120.98754 13.367958 6832.0357 43104129. -0.11069563 0.23734355 121.02603 13.261013 6836.3964 44487464. -0.062535013 0.24792009 121.12274 13.008862