# # 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 = 54.908134 km # Date (UTC) = 2015-01-11T09:40:53.448 # Date (julian) = 2457033.90339639 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6504.0509 6.5000422e+10 0.064293957 0.033504735 110.12488 36.446454 6506.1009 5.7000085e+10 0.073307672 0.034122916 110.19843 36.317742 6508.1509 5.0057770e+10 0.082482144 0.034741097 110.26264 36.203246 6510.2009 4.4548655e+10 0.091977399 0.035359279 110.32297 36.094648 6512.2510 4.0409216e+10 0.10189355 0.035977460 110.38419 35.985164 6514.3010 3.6882639e+10 0.11211872 0.036595641 110.44855 35.872545 6516.3510 3.3775213e+10 0.12264161 0.037213823 110.51290 35.759927 6518.4011 3.0975052e+10 0.13343481 0.037832004 110.57430 35.650260 6520.4511 2.8410133e+10 0.14446974 0.038450185 110.63463 35.541663 6522.5011 2.6065071e+10 0.15435045 0.039048479 110.69496 35.432068 6524.5512 2.3882711e+10 0.16031728 0.039622764 110.75530 35.319449 6526.6012 2.1905847e+10 0.16487088 0.040298371 110.81563 35.206830 6528.6512 2.0115667e+10 0.16880789 0.041959103 110.87596 35.097274 6530.7013 1.8498745e+10 0.17219267 0.044810446 110.93629 34.988677 6532.7513 1.7047782e+10 0.17563322 0.047311815 110.99663 34.878971 6534.8013 1.5747042e+10 0.17701848 0.048168718 111.05695 34.766352 6536.8514 1.4509768e+10 0.17705648 0.048552227 111.11728 34.653733 6538.9014 1.3377794e+10 0.17665061 0.049595606 111.17762 34.544288 6540.9514 1.2348529e+10 0.17561837 0.051303574 111.23795 34.435691 6543.0014 1.1438945e+10 0.17399922 0.051382272 111.29828 34.325869 6545.0515 1.0657423e+10 0.17234046 0.052456028 111.35863 34.213234 6547.1015 9.9154255e+09 0.17013381 0.053325965 111.41897 34.100598 6549.1515 9.1654901e+09 0.16776753 0.054120707 111.48259 33.978583 6551.2016 8.4060892e+09 0.16609294 0.055306504 111.54694 33.854469 6553.2516 7.6940675e+09 0.16467166 0.055208592 111.60613 33.737730 6555.3016 7.0909106e+09 0.16288053 0.054599924 111.66244 33.625110 6557.3517 6.6046591e+09 0.16094939 0.053645686 111.71938 33.513114 6559.4017 6.1782137e+09 0.15850607 0.052341842 111.77971 33.404517 6561.4517 5.7994724e+09 0.15597387 0.051150083 111.84004 33.295920 6563.5018 5.4582034e+09 0.15358544 0.049347955 111.89768 33.187323 6565.5518 5.1338909e+09 0.15152416 0.047691840 111.95399 33.078727 6567.6018 4.8372258e+09 0.14992697 0.046108339 112.01030 32.969394 6569.6518 4.5555415e+09 0.14835269 0.044894849 112.06661 32.856774 6571.7019 4.3037525e+09 0.14674425 0.044311579 112.12292 32.744154 6573.7519 4.0721184e+09 0.14453015 0.043054095 112.17923 32.634336 6575.8019 3.8461676e+09 0.14242229 0.041570113 112.23554 32.525738 6577.8520 3.6422864e+09 0.14010556 0.038882137 112.29100 32.417141 6579.9020 3.4476768e+09 0.13756125 0.036574629 112.34329 32.308543 6581.9520 3.2722220e+09 0.13500119 0.035308321 112.39558 32.199946 6584.0021 3.1094877e+09 0.13232171 0.034514389 112.45078 32.088436 6586.0521 2.9523226e+09 0.12990093 0.033170623 112.50709 31.975817 6588.1021 2.8141978e+09 0.12814477 0.033345827 112.56340 31.864155 6590.1522 2.6833142e+09 0.12602309 0.030779039 112.61971 31.755558 6592.2022 2.5588408e+09 0.12386840 0.027877144 112.67602 31.646962 6594.2522 2.4425674e+09 0.12186138 0.026034070 112.72931 31.538352 6596.3022 2.3255112e+09 0.11956771 0.025725900 112.78161 31.429739 6598.3523 2.2130032e+09 0.11807490 0.025238976 112.83390 31.321129 6600.4023 2.1159744e+09 0.11783320 0.025816945 112.88619 31.212531 6602.4523 2.0247624e+09 0.11728765 0.027130626 112.93847 31.103934 6604.5024 1.9439688e+09 0.11625965 0.026369567 112.99076 30.992201 6606.5524 1.8642879e+09 0.11560783 0.026511318 113.04305 30.879581 6608.6024 1.7855679e+09 0.11309212 0.023716443 113.09534 30.768141 6610.6525 1.7103387e+09 0.11032252 0.024626391 113.14763 30.659544 6612.7025 1.6414959e+09 0.10895164 0.023795876 113.19991 30.550948 6614.7525 1.5771202e+09 0.10781923 0.023422033 113.25220 30.442350 6616.8026 1.5123681e+09 0.10639713 0.023408260 113.30449 30.333753 6618.8526 1.4465839e+09 0.10567561 0.024414599 113.35677 30.225155 6620.9026 1.3814445e+09 0.10488251 0.025058065 113.40906 30.116558 6622.9526 1.3245382e+09 0.10338272 0.024504430 113.46135 30.007960 6625.0027 1.2735009e+09 0.10183303 0.025400800 113.51364 29.899363 6627.0527 1.2278643e+09 0.099530861 0.025337171 113.56593 29.790765 6629.1027 1.1838826e+09 0.098193806 0.026090529 113.62082 29.676763 6631.1528 1.1330496e+09 0.096349710 0.025946284 113.68058 29.552650 6633.2028 1.0784186e+09 0.095083083 0.026187660 113.73835 29.431220 6635.2528 1.0283223e+09 0.093812178 0.026437704 113.78661 29.322622 6637.3029 9.8212282e+08 0.092751128 0.026013079 113.83488 29.214025 6639.3529 9.4142794e+08 0.092283457 0.025501943 113.88591 29.105427 6641.4029 9.0733228e+08 0.092935188 0.025149669 113.93820 28.996829 6643.4530 8.7002300e+08 0.092467480 0.025261009 113.98968 28.888228 6645.5030 8.3780382e+08 0.091645863 0.025687315 114.03795 28.779614 6647.5530 8.0672375e+08 0.090721551 0.026728946 114.08622 28.671001 6649.6030 7.7288997e+08 0.089930919 0.026802415 114.13449 28.562399 6651.6531 7.4821619e+08 0.089469371 0.026984656 114.18275 28.453803 6653.7031 7.1989968e+08 0.088947012 0.027884644 114.23102 28.345206 6655.7531 6.9084675e+08 0.087418836 0.027921415 114.27928 28.236608 6657.8032 6.5776854e+08 0.086047813 0.029832765 114.32755 28.128011 6659.8532 6.2808317e+08 0.084707356 0.031656619 114.37581 28.019414 6661.9032 6.0705626e+08 0.083197599 0.032994986 114.42408 27.910816 6663.9533 5.9034873e+08 0.081723728 0.032219040 114.47235 27.802219 6666.0033 5.7555494e+08 0.081625589 0.026909237 114.52061 27.693621 6668.0533 5.5642994e+08 0.080756178 0.027517965 114.56888 27.585023 6670.1034 5.3307790e+08 0.080116762 0.027280749 114.62245 27.464485 6672.1534 5.0739992e+08 0.079748909 0.026968506 114.67761 27.340372 6674.2034 4.8410781e+08 0.078713989 0.029126388 114.72867 27.225477 6676.2534 4.6328985e+08 0.076407116 0.031877071 114.77694 27.116880 6678.3035 4.4287217e+08 0.075490442 0.030733633 114.82521 27.008282 6680.3535 4.2378107e+08 0.075945857 0.029517754 114.87347 26.899685 6682.4035 4.0487455e+08 0.076687175 0.030732864 114.92174 26.791088 6684.4536 3.9299616e+08 0.076728579 0.032677109 114.96751 26.684990 6686.5036 3.8064699e+08 0.075669260 0.034054089 115.01175 26.580415 6688.5536 3.6821123e+08 0.073085599 0.033912988 115.05654 26.475294 6690.6037 3.5898787e+08 0.071699334 0.033046683 115.10480 26.366697 6692.6537 3.4363755e+08 0.070820940 0.032006230 115.15307 26.258099 6694.7037 3.3325325e+08 0.070036308 0.030274716 115.20282 26.139430 6696.7538 3.1798174e+08 0.069593172 0.029988957 115.25339 26.015317 6698.8038 3.0623800e+08 0.068336179 0.031321110 115.30287 25.898546 6700.8538 2.9879933e+08 0.066430594 0.031301020 115.35114 25.789933 6702.9039 2.8930079e+08 0.065806019 0.033598459 115.39941 25.681324 6704.9539 2.8288083e+08 0.065724110 0.036645960 115.44371 25.576695 6707.0039 2.6969165e+08 0.065176181 0.040186266 115.48795 25.472120 6709.0539 2.5845346e+08 0.064385681 0.041098233 115.53537 25.357743 6711.1040 2.4589205e+08 0.062510964 0.040810527 115.58593 25.233628 6713.1540 2.3389694e+08 0.060366561 0.044243628 115.63443 25.114575 6715.2040 2.2961288e+08 0.058172055 0.047587271 115.67868 25.005978 6717.2541 2.2209192e+08 0.055898299 0.049858553 115.72292 24.897381 6719.3041 2.1710509e+08 0.053632636 0.051080924 115.76716 24.792162 6721.3541 2.1381596e+08 0.053651799 0.050410600 115.81140 24.687588 6723.4042 2.0759543e+08 0.051990625 0.049594351 115.85788 24.576103 6725.4542 1.9869558e+08 0.047733275 0.041292309 115.90845 24.451989 6727.5042 1.8968153e+08 0.046356327 0.040288619 115.95788 24.330641 6729.5543 1.8147863e+08 0.045360633 0.040676004 116.00213 24.222043 6731.6043 1.7655675e+08 0.043486949 0.042952659 116.04637 24.113446 6733.6543 1.7296355e+08 0.042260629 0.047476767 116.09499 23.997291 6735.7043 1.6571515e+08 0.043197438 0.050041146 116.14556 23.877774 6737.7544 1.5828989e+08 0.044314684 0.056538647 116.19285 23.763897 6739.8044 1.5304649e+08 0.044156318 0.063810992 116.23710 23.655300 6741.8544 1.4696181e+08 0.042056930 0.068195596 116.28134 23.546825 6743.9045 1.4207713e+08 0.037406491 0.077148956 116.32559 23.442250 6745.9545 1.3975117e+08 0.036181436 0.078968150 116.36983 23.337676 6748.0045 1.3808542e+08 0.032036670 0.067040731 116.41501 23.222470 6750.0546 1.3235017e+08 0.029262343 0.072097296 116.46098 23.098356 6752.1046 1.2507515e+08 0.026393881 0.074013445 116.50864 22.975937 6754.1546 1.1640073e+08 0.025115497 0.075964819 116.55921 22.856420 6756.2047 1.1101049e+08 0.022607752 0.074693512 116.60777 22.739790 6758.2547 1.1201800e+08 0.022532502 0.074243886 116.64799 22.635214 6760.3047 1.0773249e+08 0.023053662 0.076642348 116.68821 22.530639 6762.3547 1.0309415e+08 0.027201678 0.077478611 116.73575 22.412249 6764.4048 96429063. 0.029830959 0.079502677 116.78631 22.288135 6766.4548 92571141. 0.030743403 0.080742530 116.83138 22.174408 6768.5048 90922615. 0.027154362 0.082672553 116.87160 22.069833 6770.5549 87577811. 0.023141257 0.088225502 116.91230 21.964580 6772.6049 82975665. 0.019399058 0.093197729 116.96286 21.845063 6774.6549 78311464. 0.015601307 0.098169955 117.01342 21.725546 6776.7050 76188510. 0.011869893 0.10314218 117.05999 21.602031 6778.7550 75058640. 0.0080888987 0.10811441 117.10596 21.477918 6780.8050 70556809. 0.0039135672 0.11308663 117.14794 21.367373 6782.8551 68342409. -0.00036974507 0.11805886 117.18816 21.262797 6784.9051 65187442. -0.0051596219 0.12303109 117.22957 21.155110 6786.9551 62434368. -0.010649922 0.12800331 117.27554 21.035593 6789.0051 62098492. -0.017059489 0.13297554 117.32151 20.915925 6791.0552 55532142. -0.029190448 0.13794776 117.36748 20.791811 6793.1052 54135542. -0.074840596 0.14291999 117.41344 20.667697 6795.1552 52891131. -0.045291856 0.14789222 117.45941 20.547524 6797.2053 53461073. 0.024998543 0.15286444 117.50538 20.428007