# # 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 = 48.395776 km # Date (UTC) = 2015-01-28T09:34:39.196 # Date (julian) = 2457050.89906477 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6490.3370 9.2744645e+10 0.017431177 0.029369355 -13.866275 61.514359 6492.0761 8.3330505e+10 0.022183140 0.029893788 -14.095593 61.377860 6493.8153 7.6121905e+10 0.026582050 0.030418220 -14.323350 61.242916 6495.5544 6.9335438e+10 0.030748336 0.030942652 -14.547154 61.111910 6497.2935 6.3330574e+10 0.034790173 0.031467085 -14.754148 60.988691 6499.0327 5.8978078e+10 0.039006687 0.031991517 -14.940689 60.874947 6500.7718 5.5338434e+10 0.043591728 0.032515949 -15.135295 60.755442 6502.5110 5.1819815e+10 0.048630780 0.033040382 -15.353692 60.618943 6504.2501 4.8147166e+10 0.054220331 0.033564814 -15.569787 60.484747 6505.9892 4.4539956e+10 0.060506761 0.034089247 -15.782726 60.353707 6507.7284 4.0937034e+10 0.067538108 0.034613679 -15.992413 60.219465 6509.4675 3.7544773e+10 0.075452047 0.035138111 -16.199840 60.082999 6511.2066 3.4689427e+10 0.084529510 0.035662544 -16.381083 59.963760 6512.9458 3.2409374e+10 0.094923066 0.036186976 -16.553973 59.850016 6514.6849 3.0669094e+10 0.10661802 0.036711408 -16.743183 59.723524 6516.4241 2.8875566e+10 0.11909786 0.037235841 -16.945201 59.587025 6518.1632 2.6913620e+10 0.13208432 0.037760273 -17.147220 59.446548 6519.9023 2.5130299e+10 0.14563411 0.038284706 -17.349239 59.304590 6521.6415 2.3569655e+10 0.15849249 0.038809138 -17.516929 59.187967 6523.3806 2.2228742e+10 0.16597521 0.039273446 -17.680687 59.074246 6525.1197 2.0849694e+10 0.17136379 0.039768548 -17.863553 58.944606 6526.8589 1.9415077e+10 0.17387831 0.040568528 -18.054651 58.808108 6528.5980 1.8061093e+10 0.17540352 0.041916896 -18.218119 58.687398 6530.3372 1.6817152e+10 0.17751646 0.044300716 -18.377361 58.569102 6532.0763 1.5655182e+10 0.17909215 0.046747931 -18.554274 58.438621 6533.8154 1.4508339e+10 0.17874583 0.047866123 -18.739912 58.302123 6535.5546 1.3468075e+10 0.17806582 0.047983725 -18.899594 58.180899 6537.2937 1.2618107e+10 0.17803144 0.048823699 -19.054255 58.062629 6539.0329 1.1854999e+10 0.17681587 0.049683393 -19.225236 57.929208 6540.7720 1.1125256e+10 0.17589406 0.051218809 -19.405415 57.787248 6542.5111 1.0413452e+10 0.17446390 0.051196290 -19.561323 57.664412 6544.2503 9.7978595e+09 0.17283684 0.051847366 -19.711465 57.546119 6545.9894 9.3386686e+09 0.17089796 0.052464431 -19.858831 57.430601 6547.7285 8.9218684e+09 0.17019699 0.053564414 -20.004423 57.316857 6549.4677 8.4881450e+09 0.16862147 0.054442880 -20.159771 57.191483 6551.2068 7.9782447e+09 0.16696407 0.055308346 -20.329028 57.049526 6552.9460 7.4526175e+09 0.16582950 0.055348671 -20.481886 56.921322 6554.6851 7.0186758e+09 0.16399961 0.054846757 -20.622901 56.803051 6556.4242 6.7071323e+09 0.16158234 0.053950756 -20.763926 56.684771 6558.1634 6.4883489e+09 0.15928799 0.053100097 -20.904970 56.566478 6559.9025 6.2358774e+09 0.15674556 0.052285314 -21.050209 56.443820 6561.6416 5.9044430e+09 0.15378645 0.051056494 -21.214007 56.301860 6563.3808 5.5440421e+09 0.15133880 0.049487893 -21.368169 56.168253 6565.1199 5.1925748e+09 0.14964901 0.048182230 -21.504663 56.049959 6566.8591 4.9137135e+09 0.14783819 0.046696920 -21.640452 55.930960 6568.5982 4.6873008e+09 0.14613840 0.045221781 -21.772394 55.808116 6570.3373 4.4846306e+09 0.14499643 0.044777775 -21.904337 55.685273 6572.0765 4.2922893e+09 0.14352518 0.044186364 -22.031902 55.566805 6573.8156 4.1038729e+09 0.14141208 0.043002978 -22.159270 55.448534 6575.5547 3.9350845e+09 0.13970248 0.041818126 -22.290109 55.330246 6577.2939 3.7729247e+09 0.13772443 0.039758756 -22.422053 55.211952 6579.0330 3.5908669e+09 0.13521629 0.037052346 -22.565737 55.080388 6580.7722 3.3895823e+09 0.13341724 0.035807169 -22.718615 54.938430 6582.5113 3.1827620e+09 0.13196756 0.035154657 -22.849590 54.810412 6584.2504 3.0104525e+09 0.13007901 0.034379091 -22.972433 54.687568 6585.9896 2.8989569e+09 0.12801782 0.033179635 -23.095277 54.567141 6587.7287 2.7960628e+09 0.12653755 0.033319823 -23.218121 54.448846 6589.4678 2.6722453e+09 0.12451131 0.032117814 -23.340956 54.329042 6591.2070 2.5472859e+09 0.12210910 0.028968353 -23.463775 54.206223 6592.9461 2.4393433e+09 0.12006344 0.027154554 -23.585983 54.084015 6594.6853 2.3531342e+09 0.11758648 0.025796349 -23.704277 53.965722 6596.4244 2.2797488e+09 0.11468529 0.025725344 -23.822571 53.847429 6598.1635 2.1767449e+09 0.11277571 0.025329088 -23.940865 53.724870 6599.9027 2.0810215e+09 0.11193389 0.024984021 -24.059160 53.602026 6601.6418 2.0001360e+09 0.11143656 0.027347946 -24.174090 53.482547 6603.3809 1.9046009e+09 0.11054672 0.026437754 -24.287834 53.364253 6605.1201 1.8279210e+09 0.11021439 0.026765785 -24.401578 53.243497 6606.8592 1.7433555e+09 0.10936063 0.025959967 -24.515323 53.120653 6608.5984 1.6687645e+09 0.10710695 0.023716551 -24.629067 52.999371 6610.3375 1.6157317e+09 0.10476356 0.024325451 -24.742811 52.881077 6612.0766 1.5291461e+09 0.10320242 0.024263492 -24.855890 52.762123 6613.8158 1.4383429e+09 0.10266319 0.023872900 -24.965062 52.639303 6615.5549 1.3583204e+09 0.10169857 0.023268605 -25.074235 52.516484 6617.2940 1.2821435e+09 0.10103663 0.023536740 -25.183428 52.393643 6619.0332 1.2199376e+09 0.10050130 0.024533922 -25.292623 52.270801 6620.7723 1.1712763e+09 0.099895102 0.025016079 -25.401817 52.151365 6622.5115 1.1222087e+09 0.098757822 0.024621858 -25.511012 52.033070 6624.2506 1.0880743e+09 0.097083044 0.024996455 -25.617698 51.912267 6625.9897 1.0559365e+09 0.095990278 0.026578659 -25.722343 51.789423 6627.7289 1.0080086e+09 0.094360512 0.025598364 -25.826988 51.666579 6629.4680 9.6246829e+08 0.093215840 0.026024486 -25.931633 51.543735 6631.2072 9.1224257e+08 0.091687574 0.025951808 -26.033951 51.423621 6632.9463 8.6589318e+08 0.090588654 0.026145813 -26.123644 51.318330 6634.6854 8.2898774e+08 0.089156655 0.026376841 -26.213337 51.213038 6636.4246 7.9535675e+08 0.087647186 0.026384877 -26.309179 51.100060 6638.1637 7.5754028e+08 0.086780983 0.025664510 -26.409274 50.981766 6639.9028 7.2032101e+08 0.086743854 0.025305379 -26.509361 50.861693 6641.6420 6.8477654e+08 0.087044860 0.025150480 -26.609437 50.738872 6643.3811 6.5417589e+08 0.086609248 0.025250162 -26.709517 50.616048 6645.1203 6.2903709e+08 0.085960792 0.025508019 -26.809611 50.493204 6646.8594 5.9679463e+08 0.085144677 0.026364996 -26.909693 50.370360 6648.5985 5.6806056e+08 0.084367850 0.027364942 -27.005265 50.247516 6650.3377 5.4257503e+08 0.084113857 0.026332539 -27.100810 50.124672 6652.0768 5.1852946e+08 0.083759830 0.027271653 -27.196355 50.001830 6653.8159 4.9852239e+08 0.083268809 0.027942253 -27.291900 49.878988 6655.5551 4.7489747e+08 0.082078518 0.027839577 -27.379237 49.766697 6657.2942 4.5629626e+08 0.080712396 0.029242395 -27.461131 49.661406 6659.0334 4.4218740e+08 0.079342103 0.031827640 -27.543528 49.555466 6660.7725 4.3097203e+08 0.078253041 0.032328157 -27.639073 49.432622 6662.5116 4.2787443e+08 0.076986437 0.032757216 -27.734618 49.309778 6664.2508 4.2324598e+08 0.075749887 0.031288533 -27.826346 49.190750 6665.9899 4.1828826e+08 0.075589983 0.026925133 -27.917343 49.072455 6667.7290 4.1036511e+08 0.074820997 0.027371248 -28.008326 48.951259 6669.4682 3.8963880e+08 0.073972048 0.027874846 -28.099303 48.828439 6671.2073 3.6604039e+08 0.073976878 0.026868303 -28.190288 48.705610 6672.9465 3.4412471e+08 0.073667042 0.027428183 -28.281284 48.582768 6674.6856 3.2948137e+08 0.072386406 0.029533136 -28.369096 48.464223 6676.4247 3.2116202e+08 0.070356442 0.031987462 -28.447089 48.358931 6678.1639 3.1703376e+08 0.069588645 0.030827009 -28.525082 48.253639 6679.9030 3.0904941e+08 0.069757446 0.029521565 -28.608828 48.136403 6681.6421 2.9995531e+08 0.070406454 0.030150004 -28.695273 48.013559 6683.3813 2.9087883e+08 0.070778726 0.031747358 -28.781719 47.890715 6685.1204 2.7537169e+08 0.070707222 0.032832034 -28.868165 47.767871 6686.8596 2.6334848e+08 0.069383024 0.034261190 -28.954611 47.645027 6688.5987 2.4999201e+08 0.067246995 0.033923390 -29.041057 47.522182 6690.3378 2.3522246e+08 0.066279416 0.033077147 -29.127109 47.399338 6692.0770 2.2114577e+08 0.065543724 0.032675944 -29.209004 47.276494 6693.8161 2.0676008e+08 0.064914353 0.031324112 -29.290899 47.153650 6695.5552 2.0051106e+08 0.064819970 0.029757481 -29.365860 47.046408 6697.2944 1.9852723e+08 0.064225632 0.030128520 -29.439954 46.941116 6699.0335 1.9560230e+08 0.063074659 0.031559498 -29.516575 46.830136 6700.7727 1.8965778e+08 0.061650277 0.031240824 -29.598455 46.707316 6702.5118 1.8197572e+08 0.061033367 0.033285405 -29.680336 46.584494 6704.2509 1.7900152e+08 0.061204867 0.036300777 -29.762232 46.461652 6705.9901 1.7525320e+08 0.061173726 0.038428761 -29.844128 46.338810 6707.7292 1.7224859e+08 0.060868149 0.040082367 -29.921800 46.215966 6709.4684 1.6719838e+08 0.060106589 0.040834649 -29.999147 46.093122 6711.2075 1.6333434e+08 0.058588333 0.040928298 -30.071270 45.983098 6712.9466 1.6078322e+08 0.056996322 0.043587528 -30.141464 45.877805 6714.6858 1.6278791e+08 0.055227120 0.047354964 -30.212847 45.769598 6716.4249 1.6515488e+08 0.053666324 0.049027202 -30.290193 45.646754 6718.1640 1.6024115e+08 0.052051282 0.050067894 -30.367539 45.523910 6719.9032 1.5027411e+08 0.051325482 0.050511754 -30.444885 45.401066 6721.6423 1.4104419e+08 0.051662697 0.050497432 -30.522231 45.278222 6723.3815 1.3409032e+08 0.050542128 0.049581687 -30.599577 45.155379 6725.1206 1.3030353e+08 0.046905399 0.041500693 -30.676922 45.032535 6726.8597 1.2555466e+08 0.045666577 0.040959121 -30.747942 44.919737 6728.5989 1.1718093e+08 0.045646839 0.040476890 -30.814237 44.814445 6730.3380 1.1405125e+08 0.044436663 0.040842348 -30.880584 44.709013 6732.0771 1.1078653e+08 0.043206927 0.043754411 -30.953367 44.586192 6733.8163 1.0469192e+08 0.042561396 0.048356130 -31.026150 44.463372 6735.5554 1.0291755e+08 0.043768583 0.049883049 -31.098944 44.340533 6737.2946 99260280. 0.045109575 0.055073879 -31.171740 44.217689 6739.0337 88435408. 0.045907758 0.062867786 -31.244536 44.094846 6740.7728 84255954. 0.045177350 0.065370611 -31.317332 43.972004 6742.5120 77275525. 0.042924480 0.069858259 -31.390128 43.849161 6744.2511 77453974. 0.039312136 0.077987636 -31.462924 43.726317 6745.9902 82893189. 0.038481362 0.078983177 -31.533474 43.607264 6747.7294 79090776. 0.034465561 0.067110063 -31.595869 43.501972 6749.4685 77848028. 0.033343789 0.072149652 -31.658264 43.396680 6751.2077 73605661. 0.031371529 0.073799470 -31.727437 43.279951 6752.9468 70070311. 0.029360005 0.073038857 -31.800233 43.157107 6754.6859 70768137. 0.028116084 0.075110405 -31.870959 43.034274 6756.4251 70490231. 0.025689113 0.075260679 -31.939192 42.911454 6758.1642 65442260. 0.025289813 0.074052564 -32.007429 42.788627 6759.9033 58600632. 0.026076014 0.076037947 -32.075675 42.665784 6761.6425 51580702. 0.029250467 0.078021307 -32.143921 42.542940