# # 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 = 42.899532 km # Date (UTC) = 2015-11-23T10:30:27.571 # Date (julian) = 2457349.93781911 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6496.5286 6.3682275e+10 0.035228375 0.031236418 -29.243020 61.201634 6498.4104 5.9279072e+10 0.040504580 0.031803881 -29.409244 61.120360 6500.2923 5.5226901e+10 0.045875627 0.032371344 -29.594734 61.027633 6502.1741 5.0819123e+10 0.051332038 0.032938807 -29.780399 60.934802 6504.0559 4.6850806e+10 0.057034721 0.033506270 -29.949247 60.849224 6505.9378 4.3610572e+10 0.063213369 0.034073732 -30.108009 60.767997 6507.8196 4.1038450e+10 0.070046641 0.034641195 -30.266771 60.686769 6509.7015 3.8799845e+10 0.077625411 0.035208658 -30.422148 60.605542 6511.5833 3.6601217e+10 0.085946174 0.035776121 -30.577217 60.524315 6513.4651 3.4421701e+10 0.095017719 0.036343584 -30.736899 60.440672 6515.3470 3.2100620e+10 0.10472654 0.036911046 -30.914126 60.347840 6517.2288 2.9717148e+10 0.11504475 0.037478509 -31.091352 60.255008 6519.1106 2.7427221e+10 0.12602332 0.038045972 -31.246908 60.171905 6520.9925 2.5440137e+10 0.13779793 0.038613435 -31.398285 60.090678 6522.8743 2.3734196e+10 0.14787029 0.039146200 -31.549662 60.009451 6524.7561 2.2135869e+10 0.15597401 0.039695586 -31.701039 59.928223 6526.6380 2.0681393e+10 0.16244632 0.040336941 -31.852416 59.846996 6528.5198 1.9342730e+10 0.16857101 0.041854859 -32.002237 59.765769 6530.4017 1.8198748e+10 0.17382167 0.044391012 -32.149922 59.684543 6532.2835 1.7153501e+10 0.17738057 0.046921022 -32.297608 59.603317 6534.1653 1.6068705e+10 0.17773908 0.047990807 -32.457329 59.510807 6536.0472 1.4886929e+10 0.17607561 0.047832705 -32.621895 59.413753 6537.9290 1.3687299e+10 0.17648905 0.049123210 -32.779403 59.322130 6539.8108 1.2611171e+10 0.17589727 0.050625131 -32.923396 59.240904 6541.6927 1.1681461e+10 0.17380295 0.051101899 -33.067389 59.159678 6543.5745 1.0896058e+10 0.17214877 0.051532677 -33.209052 59.076101 6545.4564 1.0196043e+10 0.17086353 0.052459655 -33.349375 58.991169 6547.3382 9.5723183e+09 0.16973159 0.053415971 -33.489697 58.906238 6549.2200 9.0223253e+09 0.16803472 0.054190503 -33.629999 58.821317 6551.1019 8.5155572e+09 0.16668040 0.055271506 -33.770301 58.736397 6552.9837 8.0179462e+09 0.16580250 0.055339170 -33.914053 58.648830 6554.8655 7.4982852e+09 0.16437374 0.054850543 -34.070181 58.551778 6556.7474 6.9687636e+09 0.16246237 0.053903248 -34.226309 58.454726 6558.6292 6.4826520e+09 0.16038321 0.052703142 -34.362747 58.367966 6560.5110 6.0784862e+09 0.15821008 0.051813537 -34.495664 58.283047 6562.3929 5.7363013e+09 0.15589927 0.050506063 -34.628581 58.198128 6564.2747 5.4251212e+09 0.15307401 0.048647096 -34.761498 58.113209 6566.1566 5.1409350e+09 0.15054742 0.047094322 -34.894415 58.028290 6568.0384 4.8866261e+09 0.14853950 0.045736372 -35.025739 57.943372 6569.9202 4.6467276e+09 0.14632148 0.044912317 -35.154963 57.858453 6571.8021 4.4194497e+09 0.14377498 0.044284216 -35.284187 57.773534 6573.6839 4.1954058e+09 0.14106433 0.043108668 -35.413411 57.688615 6575.5657 4.0049818e+09 0.13886893 0.041807097 -35.542635 57.603696 6577.4476 3.8224037e+09 0.13677358 0.039517344 -35.672064 57.518603 6579.3294 3.6173446e+09 0.13441141 0.036889407 -35.815533 57.421551 6581.2112 3.4029040e+09 0.13244606 0.035532641 -35.959001 57.324499 6583.0931 3.1872221e+09 0.13106004 0.034974552 -36.090909 57.235267 6584.9749 3.0080206e+09 0.12941336 0.033984436 -36.216442 57.150348 6586.8568 2.8575231e+09 0.12749928 0.033160221 -36.341974 57.065430 6588.7386 2.7142054e+09 0.12574193 0.033133275 -36.464051 56.977054 6590.6204 2.5837334e+09 0.12352212 0.029907972 -36.585892 56.888442 6592.5023 2.4538687e+09 0.12137333 0.027585673 -36.707733 56.800671 6594.3841 2.3388820e+09 0.11896300 0.025961670 -36.829572 56.715752 6596.2659 2.2318985e+09 0.11615814 0.025726065 -36.951412 56.630833 6598.1478 2.1255336e+09 0.11415765 0.025336612 -37.071345 56.543991 6600.0296 2.0365774e+09 0.11305951 0.025050751 -37.189512 56.455365 6601.9114 1.9450776e+09 0.11201570 0.027474930 -37.307679 56.366740 6603.7933 1.8513631e+09 0.11013828 0.026193651 -37.439523 56.271280 6605.6751 1.7472538e+09 0.10935668 0.027231416 -37.574552 56.174228 6607.5570 1.6448832e+09 0.10726058 0.024607213 -37.702133 56.080901 6609.4388 1.5569427e+09 0.10401919 0.023836274 -37.820281 55.992291 6611.3206 1.4814038e+09 0.10089103 0.024753988 -37.938428 55.903681 6613.2025 1.4178670e+09 0.099376363 0.023647876 -38.051165 55.817775 6615.0843 1.3595006e+09 0.097767825 0.023254125 -38.161929 55.732856 6616.9661 1.3089189e+09 0.096241632 0.023433935 -38.272783 55.647847 6618.8480 1.2519811e+09 0.095649532 0.024411119 -38.387239 55.559236 6620.7298 1.1912433e+09 0.095177746 0.025002379 -38.501696 55.470624 6622.6117 1.1331064e+09 0.094121245 0.024595192 -38.614986 55.382013 6624.4935 1.0827689e+09 0.092718665 0.025126471 -38.725749 55.293401 6626.3753 1.0423141e+09 0.091392577 0.026112707 -38.836513 55.204789 6628.2572 9.9452852e+08 0.090147281 0.025807504 -38.954326 55.108488 6630.1390 9.4361730e+08 0.089004598 0.025928644 -39.076695 55.007217 6632.0208 8.9201234e+08 0.087548991 0.026034843 -39.196307 54.908953 6633.9027 8.4765558e+08 0.086273085 0.026309850 -39.307072 54.820341 6635.7845 8.0526386e+08 0.085022754 0.026517436 -39.417837 54.731730 6637.6663 7.7252835e+08 0.083956366 0.025835058 -39.524695 54.643119 6639.5482 7.4155174e+08 0.083339750 0.025432143 -39.628074 54.554508 6641.4300 7.0879576e+08 0.083594681 0.025149761 -39.731454 54.465897 6643.3119 6.7977458e+08 0.082881206 0.025239704 -39.837864 54.380316 6645.1937 6.4385505e+08 0.081959439 0.025542420 -39.944936 54.295397 6647.0755 6.1767326e+08 0.080732969 0.026477544 -40.051594 54.210065 6648.9574 5.9492334e+08 0.079414608 0.027605145 -40.154973 54.121453 6650.8392 5.7227948e+08 0.078928724 0.026447353 -40.258352 54.032841 6652.7210 5.5239354e+08 0.078326905 0.027448907 -40.365990 53.939120 6654.6029 5.2210580e+08 0.077303365 0.027779397 -40.479921 53.837849 6656.4847 4.9546170e+08 0.075619862 0.028448843 -40.593495 53.736881 6658.3665 4.7106005e+08 0.074467314 0.030711153 -40.696875 53.644578 6660.2484 4.4871291e+08 0.073501952 0.031851764 -40.800254 53.552275 6662.1302 4.3261095e+08 0.072402367 0.032971212 -40.901235 53.461168 6664.0121 4.1164122e+08 0.071401716 0.032161983 -40.997246 53.372543 6665.8939 3.9587691e+08 0.071722990 0.027082459 -41.093257 53.283917 6667.7757 3.7966796e+08 0.071298319 0.027388396 -41.191538 53.195300 6669.6576 3.6503807e+08 0.070699167 0.027680339 -41.291225 53.106689 6671.5394 3.5209167e+08 0.070701382 0.026873035 -41.390913 53.018077 6673.4212 3.3330092e+08 0.070386198 0.028089208 -41.499710 52.917960 6675.3031 3.1681821e+08 0.068949071 0.030378854 -41.609420 52.816689 6677.1849 3.0297880e+08 0.067325132 0.032095349 -41.711738 52.722241 6679.0667 2.9039446e+08 0.066850795 0.030212615 -41.807733 52.633630 6680.9486 2.8066513e+08 0.067840016 0.029646255 -41.903727 52.545018 6682.8304 2.6867034e+08 0.068428736 0.031059015 -41.996656 52.456408 6684.7123 2.5905969e+08 0.068320470 0.032690236 -42.088959 52.367797 6686.5941 2.4839713e+08 0.067174293 0.034106737 -42.182872 52.277127 6688.4759 2.3579059e+08 0.064859657 0.033895051 -42.288364 52.171635 6690.3578 2.2237346e+08 0.063596255 0.033074863 -42.393857 52.066143 6692.2396 2.1037526e+08 0.062695496 0.032487093 -42.489428 51.973348 6694.1214 2.0490212e+08 0.061729116 0.031090824 -42.581731 51.884736 6696.0033 1.9886661e+08 0.061536137 0.029677146 -42.673873 51.796125 6697.8851 1.9283281e+08 0.060741026 0.030203278 -42.762484 51.707514 6699.7669 1.8944328e+08 0.059279994 0.030882758 -42.851096 51.618904 6701.6488 1.8345256e+08 0.057669416 0.032361398 -42.943952 51.524634 6703.5306 1.7513599e+08 0.057815771 0.035003019 -43.045225 51.419143 6705.4125 1.6405009e+08 0.057918498 0.037401873 -43.146497 51.313651 6707.2943 1.5481144e+08 0.057549441 0.040144669 -43.235546 51.224455 6709.1761 1.4607672e+08 0.056873449 0.041020515 -43.324157 51.135843 6711.0580 1.4211989e+08 0.055242970 0.040758184 -43.412768 51.047231 6712.9398 1.4013008e+08 0.053413992 0.043574861 -43.501380 50.958621 6714.8216 1.3333585e+08 0.051515508 0.047365179 -43.589991 50.870011 6716.7035 1.2739410e+08 0.049675340 0.049437517 -43.683232 50.772142 6718.5853 1.1749367e+08 0.047554688 0.050723996 -43.780284 50.666650 6720.4672 1.0906375e+08 0.047208354 0.050365639 -43.875169 50.564174 6722.3490 1.1044895e+08 0.046820196 0.050173765 -43.960088 50.475562 6724.2308 1.0583308e+08 0.044342879 0.047999137 -44.045006 50.386951 6726.1127 1.0224381e+08 0.041060244 0.040952384 -44.133646 50.292386 6727.9945 99923055. 0.040382424 0.039635432 -44.226479 50.191114 6729.8763 91882239. 0.038998380 0.040461329 -44.318518 50.090741 6731.7582 88959056. 0.037341753 0.043258922 -44.403438 49.998437 6733.6400 83401797. 0.036126422 0.047399087 -44.488357 49.906133 6735.5218 78917968. 0.036720823 0.049847407 -44.576376 49.810316 6737.4037 80980480. 0.037836239 0.055421495 -44.669208 49.709045 6739.2855 76886997. 0.037451101 0.063175969 -44.761703 49.607971 6741.1674 72252684. 0.034867226 0.066235989 -44.839251 49.515654 6743.0492 67359189. 0.028132878 0.071379267 -44.916798 49.423337 6744.9310 60370821. 0.0029149065 0.078513536 -44.999143 49.328209 6746.8129 57215210. 0.016797025 0.069536849 -45.091975 49.226936 6748.6947 53439718. 0.057780764 0.070671732 -45.184806 49.125664