# # 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 = 42.272749 km # Date (UTC) = 2016-01-26T08:18:15.064 # Date (julian) = 2457413.84600769 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.5536 7.3440954e+10 0.061689250 0.033354778 1.7159570 58.517111 6505.2393 6.5411158e+10 0.069214347 0.033863115 1.5307676 58.384833 6506.9251 5.7914542e+10 0.076805389 0.034371453 1.3729551 58.272110 6508.6109 5.2013729e+10 0.084715805 0.034879790 1.2186005 58.161856 6510.2966 4.7514594e+10 0.093044078 0.035388128 1.0642459 58.051603 6511.9824 4.3655738e+10 0.10166035 0.035896465 0.90989134 57.941350 6513.6681 4.0203307e+10 0.11051944 0.036404803 0.75709285 57.829541 6515.3539 3.7037132e+10 0.11959030 0.036913140 0.60714839 57.714878 6517.0397 3.4073747e+10 0.12884702 0.037421478 0.45758022 57.600592 6518.7254 3.1361117e+10 0.13829613 0.037929815 0.31204532 57.490338 6520.4112 2.9081413e+10 0.14801616 0.038438153 0.16651042 57.380084 6522.0970 2.7066199e+10 0.15764995 0.038942642 0.020975978 57.266223 6523.7827 2.5209599e+10 0.16275017 0.039373110 -0.12455834 57.151559 6525.4685 2.3525521e+10 0.16790954 0.039728747 -0.27007700 57.039334 6527.1543 2.1876924e+10 0.17272953 0.040828460 -0.41558286 56.929102 6528.8400 2.0340839e+10 0.17538745 0.042108871 -0.55985140 56.817619 6530.5258 1.8823426e+10 0.17853022 0.044564781 -0.70097560 56.702957 6532.2115 1.7375305e+10 0.18127226 0.046860915 -0.84203417 56.588294 6533.8973 1.6059832e+10 0.18148291 0.047900916 -0.97874824 56.473631 6535.5831 1.4910125e+10 0.18094137 0.047971363 -1.1154623 56.358969 6537.2688 1.3887848e+10 0.18079145 0.048811970 -1.2521764 56.244305 6538.9546 1.2945208e+10 0.17923967 0.049621520 -1.3888905 56.129640 6540.6404 1.2073670e+10 0.17817658 0.051156626 -1.5234885 56.017093 6542.3261 1.1280921e+10 0.17634766 0.051126054 -1.6557930 55.906839 6544.0119 1.0583878e+10 0.17422512 0.051653993 -1.7880973 55.795649 6545.6977 9.9288204e+09 0.17254195 0.052461817 -1.9204012 55.680986 6547.3834 9.2986077e+09 0.17138418 0.053433171 -2.0527051 55.566324 6549.0692 8.7180423e+09 0.16922341 0.054036780 -2.1849841 55.451681 6550.7549 8.1753166e+09 0.16779720 0.055174391 -2.3172616 55.337039 6552.4407 7.6731185e+09 0.16657162 0.055475841 -2.4465722 55.222383 6554.1265 7.2031973e+09 0.16426555 0.054835034 -2.5744666 55.107720 6555.8122 6.7480749e+09 0.16224148 0.054170894 -2.7005552 54.993057 6557.4980 6.3508263e+09 0.16052655 0.053553961 -2.8240389 54.878392 6559.1838 5.9788831e+09 0.15781025 0.052366440 -2.9481483 54.763728 6560.8695 5.6046265e+09 0.15511642 0.051490321 -3.0760421 54.649065 6562.5553 5.2579721e+09 0.15287377 0.050351527 -3.2039359 54.534403 6564.2411 4.9767995e+09 0.14986724 0.048662353 -3.3092412 54.434064 6565.9268 4.7763854e+09 0.14709111 0.047265987 -3.4113016 54.335783 6567.6126 4.6226304e+09 0.14487762 0.046099237 -3.5182660 54.232742 6569.2983 4.4489981e+09 0.14212410 0.044871842 -3.6417496 54.113670 6570.9841 4.2319301e+09 0.13975984 0.044509859 -3.7652333 53.994598 6572.6699 3.9998739e+09 0.13774295 0.043846539 -3.8844770 53.879764 6574.3556 3.7838270e+09 0.13535409 0.042684196 -4.0035506 53.765099 6576.0414 3.5792174e+09 0.13329048 0.041323746 -4.1195485 53.650452 6577.7272 3.3750507e+09 0.13154037 0.039078182 -4.2341896 53.535811 6579.4129 3.1935836e+09 0.12927566 0.036843496 -4.3418618 53.428139 6581.0987 3.0438239e+09 0.12715002 0.035566726 -4.4401418 53.329858 6582.7844 2.9345942e+09 0.12548100 0.035080324 -4.5384218 53.231577 6584.4702 2.8291920e+09 0.12340235 0.034259368 -4.6494882 53.117069 6586.1560 2.6977981e+09 0.12135933 0.033169280 -4.7641517 52.997995 6587.8417 2.5437733e+09 0.12003032 0.033344867 -4.8788154 52.881184 6589.5275 2.3750716e+09 0.11821179 0.031999458 -4.9934791 52.766521 6591.2133 2.2277781e+09 0.11593441 0.028961263 -5.1031940 52.655878 6592.8990 2.1073038e+09 0.11404261 0.027200293 -5.1976941 52.557597 6594.5848 2.0012995e+09 0.11175948 0.025851500 -5.2921942 52.459316 6596.2706 1.9097088e+09 0.10906767 0.025726044 -5.3934995 52.348562 6597.9563 1.8149393e+09 0.10722209 0.025420949 -5.4993428 52.229490 6599.6421 1.7201873e+09 0.10594079 0.024968348 -5.6066522 52.111883 6601.3278 1.6198575e+09 0.10533929 0.027200088 -5.7169059 51.997218 6603.0136 1.5248387e+09 0.10411835 0.026655216 -5.8258912 51.883372 6604.6994 1.4501440e+09 0.10285372 0.026486542 -5.9166112 51.781312 6606.3851 1.3843326e+09 0.10164228 0.026811882 -6.0073312 51.679251 6608.0709 1.3293155e+09 0.099224591 0.023730497 -6.1025364 51.571915 6609.7567 1.2623229e+09 0.096577488 0.023930697 -6.2039496 51.457274 6611.4424 1.1874847e+09 0.094389727 0.024676317 -6.3060339 51.341962 6613.1282 1.1157996e+09 0.093899681 0.023620624 -6.4118771 51.222889 6614.8140 1.0486047e+09 0.093204728 0.023379709 -6.5177204 51.103815 6616.4997 9.9085805e+08 0.092169617 0.023360730 -6.6068536 51.003123 6618.1855 9.5069314e+08 0.091806177 0.023910858 -6.6937937 50.904843 6619.8712 9.1151226e+08 0.091339304 0.024736132 -6.7841902 50.801605 6621.5570 8.6682254e+08 0.090506019 0.024904823 -6.8856234 50.682531 6623.2428 8.2353875e+08 0.089322131 0.024581770 -6.9870566 50.563456 6624.9285 7.7890104e+08 0.088383666 0.025359350 -7.0707470 50.464572 6626.6143 7.4437243e+08 0.086854247 0.025808228 -7.1539072 50.366291 6628.3001 7.1194305e+08 0.085823365 0.025824924 -7.2415795 50.261243 6629.9858 6.7232199e+08 0.084840738 0.025930864 -7.3386023 50.142169 6631.6716 6.3146099e+08 0.083449663 0.025998986 -7.4348213 50.024081 6633.3574 5.9694579e+08 0.082424149 0.026214643 -7.5179815 49.922021 6635.0431 5.6683442e+08 0.081328252 0.026406254 -7.6011417 49.819961 6636.7289 5.4251673e+08 0.079973570 0.026266698 -7.6900200 49.712702 6638.4146 5.1593788e+08 0.079123338 0.025653577 -7.7870428 49.598040 6640.1004 4.8869032e+08 0.079230291 0.025258367 -7.8815079 49.485204 6641.7862 4.7260851e+08 0.079113708 0.025150970 -7.9608886 49.383143 6643.4719 4.5178598e+08 0.078308759 0.025263875 -8.0402692 49.281082 6645.1577 4.3179925e+08 0.077486491 0.025525560 -8.1262592 49.170523 6646.8435 4.1218468e+08 0.076499825 0.026356751 -8.2188720 49.051449 6648.5292 3.8628209e+08 0.075807179 0.027318550 -8.3075381 48.937200 6650.2150 3.7527619e+08 0.075542434 0.026304454 -8.3831381 48.838920 6651.9008 3.6447928e+08 0.075202007 0.027174462 -8.4587381 48.740641 6653.5865 3.5106548e+08 0.074908569 0.027825116 -8.5443050 48.630180 6655.2723 3.4015892e+08 0.073904883 0.027722723 -8.6368993 48.511130 6656.9580 3.2261643e+08 0.072576124 0.028864286 -8.7240805 48.397491 6658.6438 3.0867855e+08 0.071550111 0.031202883 -8.7996805 48.295431 6660.3296 3.0355010e+08 0.070578109 0.031925561 -8.8752805 48.193371 6662.0153 2.9802579e+08 0.069412320 0.033035668 -8.9593631 48.082828 6663.7011 2.8817278e+08 0.068428362 0.032288922 -9.0475668 47.968164 6665.3869 2.8769420e+08 0.068311958 0.027913246 -9.1306592 47.858612 6667.0726 2.7234022e+08 0.068015872 0.027130134 -9.2062592 47.756552 6668.7584 2.6194165e+08 0.067040121 0.028141893 -9.2818592 47.654491 6670.4442 2.4937492e+08 0.067091408 0.027122865 -9.3636857 47.539500 6672.1299 2.3783830e+08 0.066857824 0.026954900 -9.4474780 47.420426 6673.8157 2.3399136e+08 0.066176304 0.028679124 -9.5253737 47.311594 6675.5014 2.2658513e+08 0.064534739 0.030758801 -9.5971940 47.213313 6677.1872 2.1737292e+08 0.063053476 0.032092087 -9.6690143 47.115032 6678.8730 2.0570994e+08 0.062528021 0.030352736 -9.7509753 46.999140 6680.5587 1.9729447e+08 0.063315603 0.029562070 -9.8347676 46.880068 6682.2445 1.8402124e+08 0.063858998 0.030611346 -9.9116218 46.770855 6683.9303 1.8040198e+08 0.063986564 0.032551885 -9.9834421 46.668795 6685.6160 1.7464825e+08 0.063730795 0.033355509 -10.055262 46.566734 6687.3018 1.6824578e+08 0.062210590 0.034174591 -10.134146 46.448782 6688.9875 1.5978606e+08 0.060083389 0.034013150 -10.213529 46.329707 6690.6733 1.5124120e+08 0.059651580 0.033038701 -10.287871 46.221974 6692.3591 1.4588239e+08 0.059125341 0.032348355 -10.359691 46.119913 6694.0448 1.3642977e+08 0.058579641 0.031198182 -10.431670 46.017588 6695.7306 1.2742408e+08 0.058868331 0.029725271 -10.511037 45.902947 6697.4164 1.1605446e+08 0.058680782 0.030143957 -10.590403 45.788305 6699.1021 1.1309101e+08 0.057913048 0.031496195 -10.658393 45.683140 6700.7879 1.1300703e+08 0.056842294 0.031252121 -10.722653 45.581081 6702.4737 1.1082864e+08 0.056553616 0.033254947 -10.788540 45.477191 6704.1594 1.0951581e+08 0.057127760 0.036255837 -10.867922 45.358118 6705.8452 1.0220869e+08 0.057637838 0.038171173 -10.947305 45.239044 6707.5309 95380511. 0.057890272 0.040110769 -11.013984 45.134262 6709.2167 92193231. 0.057746911 0.040994705 -11.078244 45.032201 6710.9025 90795860. 0.056847088 0.040673143 -11.145448 44.927688 6712.5882 90910216. 0.055655119 0.042922120 -11.224830 44.813023 6714.2740 87107953. 0.054485066 0.047324008 -11.304213 44.698359 6715.9598 78613258. 0.053964131 0.048360208 -11.369575 44.595380 6717.6455 74084782. 0.053008516 0.049834339 -11.433835 44.493319 6719.3313 71526531. 0.052037689 0.051055087 -11.499869 44.386469 6721.0171 71669947. 0.052896169 0.050309038 -11.570432 44.267397 6722.7028 72220455. 0.052590708 0.049736337 -11.640905 44.148564 6724.3886 71522715. 0.050575359 0.046681749 -11.705165 44.046504 6726.0743 67621500. 0.048763400 0.040952038 -11.769426 43.944444 6727.7601 62952855. 0.049227991 0.039947703 -11.836008 43.837738 6729.4459 59346562. 0.049720662 0.040748242 -11.906571 43.723073 6731.1316 58508899. 0.049452107 0.042012005 -11.976496 43.609683 6732.8174 60898975. 0.049698780 0.043890690 -12.040756 43.507622 6734.5032 62532159. 0.051601884 0.049323326 -12.105017 43.405561 6736.1889 58166591. 0.070986590 0.051069255 -12.172142 43.295760 6737.8747 55197913. 0.057606680 0.056921913 -12.242690 43.176712 6739.5605 51615417. 0.024880157 0.063512440 -12.312413 43.057659