# # 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 = 69.909404 km # Date (UTC) = 2015-01-12T10:29:02.151 # Date (julian) = 2457034.93683045 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.0084 1.3638029e+11 0.047415351 0.032285752 97.972982 37.252733 6502.3175 1.1460027e+11 0.056827757 0.032982046 98.049997 37.125883 6504.6266 9.7085440e+10 0.066402823 0.033678341 98.127325 36.992811 6506.9356 8.2137560e+10 0.076119922 0.034374635 98.204991 36.853013 6509.2447 6.9967377e+10 0.086072381 0.035070930 98.279812 36.720327 6511.5538 6.0516520e+10 0.096414335 0.035767224 98.352299 36.593476 6513.8629 5.3221759e+10 0.10726006 0.036463519 98.424786 36.466625 6516.1719 4.7393823e+10 0.11863503 0.037159814 98.497270 36.339776 6518.4810 4.2446883e+10 0.13049968 0.037856108 98.569144 36.213536 6520.7901 3.8237550e+10 0.14288765 0.038552403 98.637100 36.091216 6523.0992 3.4478196e+10 0.15265277 0.039203687 98.705056 35.968896 6525.4082 3.0847426e+10 0.15902167 0.039735625 98.782016 35.825570 6527.7173 2.7503114e+10 0.16449886 0.041237236 98.859669 35.680652 6530.0264 2.4532453e+10 0.16949109 0.043865610 98.932187 35.558183 6532.3354 2.2110509e+10 0.17312307 0.046964416 99.004671 35.435863 6534.6445 2.0088164e+10 0.17526460 0.048124852 99.073584 35.309972 6536.9536 1.8199071e+10 0.17621550 0.048643697 99.141540 35.183122 6539.2627 1.6474578e+10 0.17619161 0.049961566 99.209502 35.058895 6541.5717 1.4952536e+10 0.17490109 0.051141122 99.277468 34.936556 6543.8808 1.3684668e+10 0.17261393 0.051613063 99.343735 34.812530 6546.1899 1.2631663e+10 0.17012717 0.052620760 99.407160 34.685681 6548.4989 1.1658594e+10 0.16820030 0.053816648 99.472961 34.556670 6550.8080 1.0689245e+10 0.16609200 0.055187680 99.550627 34.416873 6553.1171 9.7486923e+09 0.16441938 0.055276209 99.624938 34.280125 6555.4262 8.8818843e+09 0.16221322 0.054495288 99.688363 34.153274 6557.7352 8.1641856e+09 0.16003243 0.053405262 99.751916 34.026550 6560.0443 7.5618539e+09 0.15758086 0.052234363 99.819872 33.904231 6562.3534 7.0119551e+09 0.15471452 0.050543653 99.887828 33.781911 6564.6624 6.5180046e+09 0.15213739 0.048471376 99.952064 33.655873 6566.9715 6.0771937e+09 0.15010342 0.046633298 100.01549 33.529023 6569.2806 5.6758023e+09 0.14814907 0.044870687 100.07891 33.404953 6571.5897 5.3169955e+09 0.14664293 0.044342226 100.14234 33.282633 6573.8987 5.0053608e+09 0.14423360 0.042936267 100.20576 33.160313 6576.2078 4.7296040e+09 0.14184863 0.041132202 100.26919 33.037993 6578.5169 4.4586598e+09 0.13902325 0.037833400 100.33442 32.911168 6580.8260 4.1687454e+09 0.13628004 0.035757454 100.40690 32.766194 6583.1350 3.8858205e+09 0.13410444 0.034953323 100.47575 32.627280 6585.4441 3.6260454e+09 0.13156610 0.033615728 100.53465 32.504960 6587.7532 3.4142304e+09 0.12915594 0.033325243 100.59381 32.382640 6590.0622 3.2335244e+09 0.12618769 0.030946291 100.65724 32.260320 6592.3713 3.0589001e+09 0.12278450 0.027712869 100.72067 32.138001 6594.6804 2.8997236e+09 0.11974480 0.025799025 100.78024 32.011802 6596.9895 2.7471716e+09 0.11685675 0.025722775 100.83914 31.884933 6599.2985 2.6074390e+09 0.11532041 0.024947685 100.90096 31.761002 6601.6076 2.4787266e+09 0.11545380 0.027331835 100.96439 31.638682 6603.9167 2.3579950e+09 0.11422746 0.026120606 101.02582 31.516362 6606.2257 2.2437898e+09 0.11401838 0.027098307 101.08472 31.394043 6608.5348 2.1383539e+09 0.11151001 0.023718231 101.14361 31.271723 6610.8439 2.0464979e+09 0.10842301 0.024809295 101.20251 31.149404 6613.1530 1.9567430e+09 0.10732215 0.023629712 101.26161 31.026545 6615.4620 1.8575067e+09 0.10603226 0.023265747 101.32891 30.881570 6617.7711 1.7547347e+09 0.10525254 0.023694907 101.39544 30.738690 6620.0802 1.6570985e+09 0.10471617 0.024793035 101.45434 30.616370 6622.3892 1.5717619e+09 0.10340338 0.024654387 101.51323 30.494051 6624.6983 1.4988326e+09 0.10171740 0.025236117 101.57213 30.371731 6627.0074 1.4291240e+09 0.099584086 0.025319666 101.63102 30.249410 6629.3165 1.3641443e+09 0.098354007 0.026051887 101.68992 30.127091 6631.6255 1.3045490e+09 0.096396378 0.025994308 101.74881 30.004772 6633.9346 1.2511349e+09 0.094604332 0.026315426 101.80558 29.882453 6636.2437 1.1990354e+09 0.092795561 0.026455121 101.85994 29.760133 6638.5528 1.1485574e+09 0.091371899 0.025647560 101.91550 29.637814 6640.8618 1.1013999e+09 0.091379640 0.025165206 101.97439 29.515493 6643.1709 1.0571626e+09 0.090546152 0.025218422 102.03347 29.392197 6645.4800 1.0121978e+09 0.089208432 0.025676532 102.09560 29.252400 6647.7890 9.6398744e+08 0.088108067 0.026853214 102.15677 29.114776 6650.0981 9.1812983e+08 0.087496671 0.026277698 102.21114 28.992439 6652.4072 8.7499146e+08 0.087202235 0.027362554 102.26551 28.870102 6654.7163 8.3938307e+08 0.086374215 0.027731093 102.32403 28.743624 6657.0253 8.0352169e+08 0.084554050 0.028930493 102.38293 28.616774 6659.3344 7.6830264e+08 0.083150462 0.031764842 102.43860 28.496358 6661.6435 7.3759142e+08 0.081808821 0.032862685 102.49297 28.378569 6663.9525 7.0857973e+08 0.080424944 0.032219239 102.54733 28.258501 6666.2616 6.8402383e+08 0.080483484 0.026959575 102.60170 28.136181 6668.5707 6.5753671e+08 0.079453418 0.027975794 102.65836 28.008697 6670.8798 6.3526425e+08 0.079243017 0.026921053 102.72049 27.868901 6673.1888 6.0661375e+08 0.078825325 0.027741632 102.77979 27.735468 6675.4979 5.7863272e+08 0.076881440 0.030752029 102.83416 27.613148 6677.8070 5.5105693e+08 0.075366901 0.031211015 102.88781 27.490829 6680.1160 5.2823022e+08 0.075501067 0.029466476 102.93764 27.368509 6682.4251 5.1296716e+08 0.076094092 0.030749352 102.98748 27.246189 6684.7342 4.9486831e+08 0.075994179 0.032691349 103.04161 27.123869 6687.0433 4.8041956e+08 0.074162579 0.034318770 103.09598 27.001548 6689.3523 4.6096740e+08 0.071319152 0.033698864 103.15611 26.866260 6691.6614 4.4463685e+08 0.070133061 0.032845214 103.21824 26.726464 6693.9705 4.2372624e+08 0.068987866 0.031271153 103.27040 26.600836 6696.2796 4.0245742e+08 0.068811652 0.029791935 103.32023 26.478516 6698.5886 3.8727970e+08 0.067711108 0.031025774 103.37006 26.356196 6700.8977 3.7456577e+08 0.065876542 0.031333566 103.41990 26.233877 6703.2068 3.6601278e+08 0.065600346 0.034192640 103.47460 26.106686 6705.5158 3.5433259e+08 0.065784196 0.037585669 103.53674 25.972067 6707.8249 3.4123717e+08 0.065548899 0.040068658 103.59316 25.843162 6710.1340 3.2580518e+08 0.064484126 0.040522721 103.64299 25.720842 6712.4431 3.1366099e+08 0.062360308 0.042652570 103.69466 25.594024 6714.7521 3.0102307e+08 0.060334242 0.047359954 103.75161 25.454228 6717.0612 2.9106627e+08 0.058273454 0.049870483 103.80625 25.321600 6719.3703 2.8226756e+08 0.056245339 0.051018051 103.85609 25.203793 6721.6793 2.6993422e+08 0.056643082 0.050508589 103.90593 25.085449 6723.9884 2.6254311e+08 0.054686666 0.049920202 103.95576 24.963130 6726.2975 2.5245178e+08 0.050773900 0.040954051 104.00560 24.840810 6728.6066 2.4574718e+08 0.050165780 0.040487798 104.06192 24.702558 6730.9156 2.3590878e+08 0.048464889 0.041634350 104.11888 24.562761 6733.2247 2.2656293e+08 0.047207060 0.045144304 104.16885 24.444536 6735.5338 2.2328717e+08 0.047849595 0.049860078 104.21869 24.326746 6737.8429 2.1566113e+08 0.049387244 0.056820487 104.27402 24.191947 6740.1519 2.0959408e+08 0.049163601 0.064309896 104.33097 24.052151 6742.4610 2.0147622e+08 0.046297686 0.069734052 104.38193 23.927062 6744.7701 1.9272051e+08 0.042194772 0.078389039 104.43177 23.804743 6747.0791 1.8603854e+08 0.037445155 0.067333917 104.48284 23.674622 6749.3882 1.8054003e+08 0.036657968 0.072171641 104.53462 23.540003 6751.6973 1.7658612e+08 0.033164703 0.074006486 104.59003 23.401745 6754.0064 1.7085918e+08 0.031544091 0.076203252 104.64699 23.261948 6756.3154 1.6717028e+08 0.028880500 0.074978549 104.69845 23.139129 6758.6245 1.6074879e+08 0.028988053 0.075025908 104.74828 23.021339 6760.9336 1.5649024e+08 0.029439897 0.077841548 104.79921 22.891134 6763.2426 1.5373718e+08 0.034943253 0.077176739 104.85099 22.751338 6765.5517 1.4693557e+08 0.037328866 0.079631911 104.90276 22.614818 6767.8608 1.4103613e+08 0.035153828 0.081011907 104.95454 22.480199 6770.1699 1.3725398e+08 0.030235622 0.087291684 105.00495 22.357384 6772.4789 1.3289227e+08 0.026055185 0.092892198 105.05479 22.239595 6774.7880 1.3215430e+08 0.021831226 0.098492713 105.10558 22.110932 6777.0971 1.2976459e+08 0.017622894 0.10409323 105.15736 21.971135 6779.4061 1.2316195e+08 0.013445563 0.10969374 105.20913 21.834251 6781.7152 1.2120074e+08 0.0092262427 0.11529426 105.26091 21.699631 6784.0243 1.1569958e+08 0.0050243222 0.12089477 105.31269 21.565012 6786.3334 1.1335170e+08 0.00080186310 0.12649529 105.36446 21.430393 6788.6424 1.1234564e+08 -0.0034261283 0.13209580 105.41171 21.304383 6790.9515 1.0422834e+08 -0.0076503300 0.13769632 105.45702 21.182064 6793.2606 1.0277851e+08 -0.011884963 0.14329683 105.50806 21.053686 6795.5697 96970748. -0.016137394 0.14889735 105.56501 20.919067 6797.8787 94806105. -0.020369989 0.15449786 105.61615 20.784448 6800.1878 98286495. -0.024532114 0.16009838 105.66275 20.649829 6802.4969 96301629. -0.028720478 0.16569889 105.71261 20.511948 6804.8059 97034923. -0.032863053 0.17129941 105.76439 20.372150 6807.1150 92478702. -0.037081362 0.17689992 105.81616 20.235969 6809.4241 89403627. -0.041289736 0.18250044 105.86794 20.101350 6811.7332 86656369. -0.045498980 0.18810095 105.91972 19.966731 6814.0422 82172866. -0.049762287 0.19370147 105.97150 19.832112 6816.3513 78728513. -0.054018251 0.19930198 106.02327 19.697492 6818.6604 75795985. -0.058275297 0.20490250 106.07505 19.562873 6820.9694 76922247. -0.062389808 0.21050301 106.12683 19.428255 6823.2785 75771095. -0.066588621 0.21610353 106.17860 19.293637 6825.5876 75619408. -0.070751469 0.22170404 106.22534 19.159018 6827.8967 71835852. -0.075089100 0.22730456 106.27251 19.023465 6830.2057 69662289. -0.079377519 0.23290507 106.33292 18.866403 6832.5148 72037601. -0.083424970 0.23850559 106.38800 18.718009 6834.8239 70775729. -0.087691009 0.24410610 106.43460 18.583390 6837.1329 70346303. -0.091930993 0.24970662 106.48355 18.448771 6839.4420 67000751. -0.096416813 0.25530713 106.53532 18.314152 6841.7511 62435305. -0.10111161 0.26090764 106.58439 18.179532 6844.0602 61676921. -0.10558144 0.26650816 106.63099 18.044913 6846.3692 60906362. -0.11017579 0.27210867 106.68576 17.897026 6848.6783 55698958. -0.11556368 0.27770919 106.74615 17.739997 6850.9874 52733052. -0.12112882 0.28330970 106.79363 17.603950 6853.2965 49474414. -0.12754762 0.28891022 106.84023 17.469330 6855.6055 49279284. -0.13456389 0.29451073 106.88683 17.334711 6857.9146 48033611. -0.14541199 0.30011125 106.93445 17.198440 6860.2237 45234434. -0.19050248 0.30571176 106.99485 17.041381 6862.5327 41724044. -0.16429695 0.31131228 107.04949 16.893706 6864.8418 40630671. -0.088845314 0.31691279 107.09609 16.759087