# # 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 = 53.284644 km # Date (UTC) = 2013-12-29T10:45:33.996 # Date (julian) = 2456655.94831013 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.6043 4.5644441e+10 0.058237282 0.033370081 93.735625 32.685869 6505.7494 4.2297282e+10 0.067883166 0.034016928 93.791740 32.584864 6507.8945 3.9343178e+10 0.077871833 0.034663774 93.847855 32.483858 6510.0396 3.6380790e+10 0.088046264 0.035310621 93.910717 32.370707 6512.1847 3.3402789e+10 0.098385783 0.035957467 93.973847 32.257074 6514.3298 3.0525417e+10 0.10892515 0.036604314 94.032868 32.150838 6516.4749 2.8088574e+10 0.11985426 0.037251160 94.088983 32.049833 6518.6200 2.6076628e+10 0.13121543 0.037898007 94.145097 31.948828 6520.7650 2.4310367e+10 0.14293270 0.038544853 94.197804 31.847810 6522.9101 2.2766700e+10 0.15249314 0.039155580 94.250184 31.746791 6525.0552 2.1286849e+10 0.15931739 0.039775912 94.305142 31.642747 6527.2003 1.9742279e+10 0.16415316 0.040861902 94.368272 31.529114 6529.3454 1.8194946e+10 0.16782452 0.042785987 94.431402 31.415481 6531.4905 1.6746099e+10 0.17128594 0.045942605 94.485240 31.312755 6533.6356 1.5539747e+10 0.17395734 0.047789693 94.537613 31.211749 6535.7807 1.4546058e+10 0.17448270 0.047885641 94.589986 31.110743 6537.9258 1.3637056e+10 0.17603919 0.049121685 94.642359 31.009738 6540.0709 1.2801899e+10 0.17646443 0.050887579 94.694732 30.908733 6542.2160 1.2038791e+10 0.17451532 0.051084226 94.747105 30.807728 6544.3610 1.1369527e+10 0.17260820 0.051937233 94.799478 30.706723 6546.5061 1.0713399e+10 0.17045330 0.052880993 94.851851 30.605717 6548.6512 1.0035920e+10 0.16841062 0.053862124 94.909760 30.494035 6550.7963 9.3346550e+09 0.16659469 0.055184750 94.968690 30.380384 6552.9414 8.6658877e+09 0.16517530 0.055349815 95.024546 30.272660 6555.0865 8.1091407e+09 0.16328912 0.054780685 95.076919 30.171655 6557.2316 7.6412875e+09 0.16105827 0.053720946 95.129292 30.070649 6559.3767 7.2416161e+09 0.15841897 0.052344665 95.181665 29.969644 6561.5218 6.8828714e+09 0.15571464 0.051115563 95.234038 29.868639 6563.6669 6.5371553e+09 0.15303074 0.049156960 95.286698 29.766088 6565.8120 6.1649817e+09 0.15077568 0.047396413 95.341412 29.652455 6567.9570 5.7787739e+09 0.14930648 0.045807982 95.396126 29.538822 6570.1021 5.4107708e+09 0.14792051 0.044875201 95.449093 29.437405 6572.2472 5.0998741e+09 0.14612603 0.044088575 95.501466 29.340141 6574.3923 4.8376943e+09 0.14375567 0.042666576 95.553565 29.242601 6576.5374 4.5945341e+09 0.14142064 0.040752825 95.602203 29.141582 6578.6825 4.3687392e+09 0.13854805 0.037571868 95.650841 29.040563 6580.8276 4.1622578e+09 0.13585890 0.035755940 95.699476 28.939549 6582.9727 3.9759546e+09 0.13359494 0.035029101 95.748107 28.838544 6585.1178 3.7932766e+09 0.13103913 0.033876617 95.796738 28.737538 6587.2629 3.6013221e+09 0.12843996 0.033216610 95.852853 28.630410 6589.4080 3.4019776e+09 0.12593255 0.032236633 95.911774 28.520986 6591.5530 3.2043518e+09 0.12323941 0.028577863 95.967081 28.414519 6593.6981 3.0284308e+09 0.12105897 0.026453166 96.015715 28.313514 6595.8432 2.8796882e+09 0.11865800 0.025711016 96.064349 28.212508 6597.9883 2.7486986e+09 0.11701844 0.025410852 96.112986 28.111494 6600.1334 2.6391009e+09 0.11646904 0.025264140 96.161624 28.010474 6602.2785 2.5287952e+09 0.11598392 0.027278972 96.210271 27.909410 6604.4236 2.4104733e+09 0.11495405 0.026322791 96.260776 27.799986 6606.5687 2.2809091e+09 0.11448421 0.026482060 96.311281 27.690561 6608.7138 2.1547929e+09 0.11200313 0.023713499 96.360606 27.586435 6610.8589 2.0512013e+09 0.10919979 0.024823604 96.409238 27.485429 6613.0040 1.9646285e+09 0.10817965 0.023575042 96.457869 27.384423 6615.1490 1.8888539e+09 0.10692500 0.023256117 96.506500 27.283419 6617.2941 1.8103284e+09 0.10571728 0.023536769 96.555131 27.182414 6619.4392 1.7373333e+09 0.10499726 0.024631893 96.605484 27.079026 6621.5843 1.6577023e+09 0.10398930 0.024895772 96.660199 26.969601 6623.7294 1.5780111e+09 0.10219521 0.024762061 96.714913 26.860176 6625.8745 1.5044666e+09 0.10097311 0.026441146 96.760722 26.758376 6628.0196 1.4340010e+09 0.099160151 0.025711049 96.805617 26.657357 6630.1647 1.3743796e+09 0.097558526 0.025928708 96.851826 26.554369 6632.3098 1.3114028e+09 0.095718109 0.026069490 96.902331 26.444945 6634.4549 1.2459483e+09 0.094088381 0.026360023 96.952836 26.335520 6636.6000 1.1850851e+09 0.092415097 0.026316765 97.001732 26.233321 6638.7450 1.1310290e+09 0.091226776 0.025639183 97.050364 26.132315 6640.8901 1.0827439e+09 0.091746127 0.025161742 97.098303 26.032002 6643.0352 1.0393679e+09 0.091507266 0.025197938 97.143195 25.934738 6645.1803 1.0042086e+09 0.090608995 0.025536157 97.188088 25.837474 6647.3254 9.6500517e+08 0.089594153 0.026609110 97.235853 25.733984 6649.4705 9.2520090e+08 0.088712343 0.026985124 97.286358 25.624560 6651.6156 8.7961478e+08 0.088426575 0.026955928 97.336101 25.516278 6653.7607 8.3461148e+08 0.087984042 0.027914039 97.380996 25.415259 6655.9058 8.0282375e+08 0.086315717 0.027984484 97.425892 25.314240 6658.0509 7.6941913e+08 0.084899559 0.030151290 97.473384 25.209328 6660.1960 7.3417723e+08 0.083496856 0.031804113 97.523889 25.099904 6662.3410 7.0193054e+08 0.082071483 0.032852923 97.573905 24.991538 6664.4861 6.7102625e+08 0.081029612 0.030427328 97.618798 24.894273 6666.6312 6.4438163e+08 0.080798348 0.027031598 97.663690 24.797008 6668.7763 6.1698767e+08 0.079591820 0.028157763 97.710904 24.692968 6670.9214 5.8932299e+08 0.079494487 0.026901757 97.761406 24.579335 6673.0665 5.6440202e+08 0.079006027 0.027558677 97.811695 24.466321 6675.2116 5.4188032e+08 0.077194240 0.030203636 97.856588 24.369057 6677.3567 5.2328994e+08 0.075146337 0.031851154 97.901480 24.271792 6679.5018 5.0239886e+08 0.074736688 0.029853127 97.946884 24.170093 6681.6469 4.8382875e+08 0.075418717 0.030153624 97.993179 24.060670 6683.7920 4.6177476e+08 0.075588430 0.032349203 98.039474 23.951246 6685.9370 4.3954957e+08 0.075042473 0.033694592 98.089931 23.841821 6688.0821 4.2059413e+08 0.072618697 0.033804151 98.140436 23.732396 6690.2272 4.0133545e+08 0.070885642 0.033089823 98.185212 23.630413 6692.3723 3.8220084e+08 0.070034930 0.032332974 98.226366 23.533135 6694.5174 3.6531450e+08 0.069383535 0.030535846 98.267519 23.435858 6696.6625 3.5138097e+08 0.069119316 0.029951042 98.317460 23.323210 6698.8076 3.4079309e+08 0.067981275 0.031326333 98.367965 23.209576 6700.9527 3.3775576e+08 0.066100813 0.031374351 98.416097 23.098316 6703.0978 3.2900337e+08 0.065789728 0.033919902 98.462392 22.988892 6705.2429 3.2064204e+08 0.065872070 0.037100375 98.507722 22.881749 6707.3880 3.0939495e+08 0.065504458 0.040131252 98.548872 22.784484 6709.5330 2.9499377e+08 0.064705667 0.040793498 98.590023 22.687219 6711.6781 2.8701182e+08 0.062695165 0.041463770 98.635987 22.583698 6713.8232 2.7650443e+08 0.060554938 0.046664073 98.686491 22.474273 6715.9683 2.6356933e+08 0.058846215 0.048368960 98.736413 22.364849 6718.1134 2.5276967e+08 0.056729985 0.049989046 98.782705 22.255426 6720.2585 2.4055039e+08 0.055862597 0.050389814 98.828996 22.146002 6722.4036 2.2834119e+08 0.055581575 0.050106256 98.875296 22.036565 6724.5487 2.1970955e+08 0.052317370 0.045344782 98.921598 21.927125 6726.6938 2.0946151e+08 0.049647221 0.040957625 98.965908 21.822392 6728.8389 2.0111110e+08 0.049209554 0.040817050 99.007059 21.725128 6730.9840 1.9846273e+08 0.047362561 0.041728031 99.048209 21.627863 6733.1290 1.9289172e+08 0.046142685 0.044624955 99.093031 21.521922 6735.2741 1.8732535e+08 0.046549679 0.049584453 99.139326 21.412497 6737.4192 1.7931206e+08 0.048165780 0.055471038 99.185622 21.303072 6739.5643 1.6886276e+08 0.048547001 0.063517175 99.231917 21.193648 6741.7094 1.6147973e+08 0.046807153 0.067781981 99.278212 21.084223 6743.8545 1.5290544e+08 0.042327772 0.076811905 99.320460 20.978845 6745.9996 1.4814470e+08 0.041074179 0.078987108 99.362546 20.873630 6748.1447 1.4404354e+08 0.036990846 0.067778101 99.407095 20.765951 6750.2898 1.3945135e+08 0.034294376 0.072498939 99.453390 20.656526 6752.4349 1.3769797e+08 0.031519774 0.073631252 99.499686 20.547102 6754.5800 1.2811408e+08 0.030168944 0.075280824 99.545981 20.437677 6756.7251 1.2040409e+08 0.027540836 0.076032571 99.592276 20.328252 6758.8701 1.1729911e+08 0.028158305 0.075545351 99.635064 20.218827 6761.0152 1.1206577e+08 0.028546944 0.077969483 99.677150 20.109403 6763.1603 1.1163479e+08 0.033833627 0.076926032 99.721163 19.999972 6765.3054 1.0522215e+08 0.036127070 0.079586947 99.767465 19.890532 6767.4505 99156491. 0.034923265 0.081471316 99.813766 19.781436 6769.5956 95334466. 0.030203192 0.085898844 99.860061 19.676220 6771.7407 89843039. 0.026328976 0.091101633 99.906357 19.571004 6773.8858 90285795. 0.022407205 0.096304421 99.949683 19.462820 6776.0309 84586154. 0.018535312 0.10150721 99.991768 19.353396 6778.1760 84300299. 0.014628849 0.10671000 100.03385 19.243971 6780.3211 81732071. 0.010749207 0.11191279 100.07594 19.134546 6782.4661 79030559. 0.0068796920 0.11711558 100.11803 19.025121 6784.6112 77117222. 0.0030264725 0.12231836 100.17044 18.905379 6786.7563 71973385. -0.00083508469 0.12752115 100.22335 18.785130 6788.9014 70385769. -0.0047207046 0.13272394 100.26679 18.674344 6791.0465 64736549. -0.0086523419 0.13792673 100.30888 18.564919 6793.1916 63237965. -0.012641722 0.14312952 100.35097 18.455495 6795.3367 56612159. -0.016805533 0.14833231 100.39305 18.346071 6797.4818 53390347. -0.021168582 0.15353510 100.43514 18.237160 6799.6269 53536421. -0.026636809 0.15873789 100.47722 18.131944 6801.7720 50685122. -0.039973193 0.16394067 100.51931 18.026729 6803.9171 50968587. -0.036206078 0.16914346 100.56588 17.906710 6806.0621 47906849. -0.023507278 0.17434625 100.61398 17.781650