# # 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 = 48.406374 km # Date (UTC) = 2013-11-20T07:16:29.722 # Date (julian) = 2456616.80312179 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6494.3134 7.6977213e+10 0.034229747 0.030568425 18.467252 61.716879 6496.1988 7.1171257e+10 0.039468828 0.031136976 18.277003 61.623868 6498.0843 6.5882484e+10 0.044458063 0.031705526 18.086754 61.530856 6499.9697 6.0905950e+10 0.049258393 0.032274077 17.896506 61.437845 6501.8552 5.6269379e+10 0.053986791 0.032842628 17.709673 61.344836 6503.7406 5.2286283e+10 0.058834819 0.033411178 17.523652 61.251826 6505.6260 4.8900843e+10 0.063995943 0.033979729 17.349566 61.162327 6507.5115 4.5911008e+10 0.069611265 0.034548280 17.190500 61.077245 6509.3969 4.3229770e+10 0.075884401 0.035116830 17.031434 60.992164 6511.2824 4.0623298e+10 0.082914934 0.035685381 16.858687 60.901218 6513.1678 3.8060804e+10 0.090759863 0.036253932 16.681121 60.808207 6515.0533 3.5486348e+10 0.099492696 0.036822482 16.503556 60.713614 6516.9387 3.2979290e+10 0.10910306 0.037391033 16.325989 60.616376 6518.8242 3.0664893e+10 0.11971932 0.037959584 16.148467 60.519137 6520.7096 2.8453935e+10 0.13126302 0.038528134 15.975123 60.421899 6522.5950 2.6453472e+10 0.14204978 0.039073070 15.801785 60.324661 6524.4805 2.4738272e+10 0.15027453 0.039597656 15.642394 60.237627 6526.3659 2.3359860e+10 0.15766169 0.040051725 15.490726 60.156243 6528.2514 2.2214209e+10 0.16480729 0.041641901 15.339058 60.074860 6530.1368 2.1090221e+10 0.17006574 0.044020243 15.174965 59.978569 6532.0223 1.9858036e+10 0.17263782 0.046702791 15.010083 59.881331 6533.9077 1.8582079e+10 0.17223568 0.047905336 14.842770 59.784093 6535.7932 1.7348460e+10 0.17108684 0.047880230 14.673660 59.686855 6537.6786 1.6188723e+10 0.17134855 0.049005154 14.506322 59.588730 6539.5640 1.5042476e+10 0.17060539 0.050326386 14.345667 59.487263 6541.4495 1.3981843e+10 0.16886146 0.051180764 14.185012 59.385796 6543.3349 1.3102115e+10 0.16749693 0.051469797 14.041315 59.298164 6545.2204 1.2397987e+10 0.16660876 0.052457541 13.900745 59.213082 6547.1058 1.1825862e+10 0.16551485 0.053327605 13.757939 59.126286 6548.9913 1.1236137e+10 0.16388379 0.053963671 13.601513 59.029048 6550.8767 1.0615243e+10 0.16310442 0.055204879 13.445086 58.931810 6552.7622 9.9661271e+09 0.16263660 0.055394934 13.288659 58.834572 6554.6476 9.3204811e+09 0.16147643 0.054845970 13.132232 58.737333 6556.5330 8.7314622e+09 0.16003774 0.053934759 12.985348 58.643566 6558.4185 8.2428217e+09 0.15865015 0.052882706 12.852177 58.554784 6560.3039 7.8525695e+09 0.15703686 0.052000280 12.719006 58.466003 6562.1894 7.4902593e+09 0.15512968 0.050699710 12.572380 58.368252 6564.0748 7.1045775e+09 0.15274966 0.048737691 12.420180 58.266787 6565.9603 6.7252114e+09 0.15097603 0.047228010 12.275741 58.170917 6567.8457 6.4123332e+09 0.14971040 0.045902124 12.146250 58.085823 6569.7311 6.1683142e+09 0.14811163 0.044900011 12.016759 58.000728 6571.6166 5.9257513e+09 0.14648266 0.044334872 11.875461 57.905174 6573.5020 5.6658644e+09 0.14473671 0.043254610 11.727489 57.803707 6575.3875 5.3816091e+09 0.14337046 0.041985944 11.580674 57.702241 6577.2729 5.0861898e+09 0.14184111 0.039791675 11.436930 57.600775 6579.1584 4.8013688e+09 0.13985026 0.036983436 11.293186 57.499310 6581.0438 4.5534200e+09 0.13826039 0.035583342 11.169124 57.409365 6582.9293 4.3569307e+09 0.13713899 0.035040918 11.047051 57.320583 6584.8147 4.1891301e+09 0.13560507 0.034071713 10.921402 57.230068 6586.7001 4.0073683e+09 0.13403152 0.033162246 10.781886 57.132830 6588.5856 3.8106936e+09 0.13274338 0.033184371 10.642369 57.035591 6590.4710 3.6294035e+09 0.13097010 0.030185872 10.520605 56.945454 6592.3565 3.4896835e+09 0.12896373 0.027727279 10.402231 56.856672 6594.2419 3.3731040e+09 0.12668974 0.026039721 10.281550 56.766161 6596.1274 3.2385192e+09 0.12412528 0.025726695 10.146261 56.664696 6598.0128 3.0948870e+09 0.12240534 0.025401050 10.010973 56.563231 6599.8983 2.9445740e+09 0.12152642 0.024983756 9.8756848 56.458505 6601.7837 2.7927060e+09 0.12094101 0.027414767 9.7403965 56.352811 6603.6691 2.6548998e+09 0.11941997 0.026267144 9.6134717 56.253979 6605.5546 2.5376836e+09 0.11866305 0.027130297 9.4987967 56.165197 6607.4400 2.4341810e+09 0.11665815 0.024838102 9.3841216 56.076416 6609.3255 2.3422300e+09 0.11332582 0.023802613 9.2579362 55.978724 6611.2109 2.2404009e+09 0.11026165 0.024823952 9.1268753 55.877259 6613.0964 2.1353501e+09 0.10909257 0.023608946 9.0025858 55.780070 6614.9818 2.0473390e+09 0.10785659 0.023264066 8.8916096 55.691288 6616.8673 1.9691845e+09 0.10657829 0.023418414 8.7806335 55.602507 6618.7527 1.8943743e+09 0.10608311 0.024339170 8.6622865 55.503005 6620.6381 1.8171709e+09 0.10555603 0.024972837 8.5396817 55.397312 6622.5236 1.7368068e+09 0.10447235 0.024618632 8.4201995 55.296160 6624.4090 1.6659534e+09 0.10298414 0.025081260 8.3092230 55.207379 6626.2945 1.6045652e+09 0.10169743 0.026215720 8.1982465 55.118599 6628.1799 1.5503041e+09 0.10023644 0.025776142 8.0806973 55.022648 6630.0654 1.4908073e+09 0.098939619 0.025928463 7.9580927 54.921181 6631.9508 1.4306675e+09 0.097252417 0.026027348 7.8363334 54.818869 6633.8362 1.3629246e+09 0.095910250 0.026298253 7.7179563 54.713175 6635.7217 1.2948019e+09 0.094586892 0.026508016 7.5995792 54.607482 6637.6071 1.2387996e+09 0.093416752 0.025864055 7.4935533 54.515902 6639.4926 1.1921720e+09 0.092602855 0.025452016 7.3899751 54.427120 6641.3780 1.1581669e+09 0.092619141 0.025149584 7.2844533 54.336117 6643.2635 1.1163631e+09 0.091751220 0.025232399 7.1660762 54.230424 6645.1489 1.0697266e+09 0.090598265 0.025521444 7.0476991 54.124730 6647.0344 1.0229908e+09 0.089228032 0.026455869 6.9434921 54.031992 6648.9198 9.8762262e+08 0.087716438 0.027580002 6.8436136 53.943212 6650.8052 9.5834937e+08 0.086939600 0.026439580 6.7428401 53.853371 6652.6907 9.2107761e+08 0.086215567 0.027440557 6.6286908 53.747677 6654.5761 8.8127936e+08 0.085089332 0.027790788 6.5145415 53.641984 6656.4616 8.4443710e+08 0.083348153 0.028428541 6.4129245 53.545505 6658.3470 8.1862683e+08 0.082056334 0.030676528 6.3167451 53.453025 6660.2325 7.9673757e+08 0.080834461 0.031837297 6.2205223 53.360516 6662.1179 7.6983504e+08 0.079534681 0.032978117 6.1107245 53.259130 6664.0034 7.3867308e+08 0.078309689 0.032193818 6.0008023 53.157663 6665.8888 7.0458765e+08 0.078505115 0.027090804 5.8908805 53.053538 6667.7742 6.7300877e+08 0.077932370 0.027387850 5.7809589 52.947844 6669.6597 6.4428728e+08 0.077182409 0.027678159 5.6746582 52.845632 6671.5451 6.1980429e+08 0.077021704 0.026873117 5.5784790 52.753152 6673.4306 6.0204648e+08 0.076393386 0.028103172 5.4822999 52.660672 6675.3160 5.8441675e+08 0.074660196 0.030403647 5.3807906 52.560790 6677.2015 5.6331873e+08 0.072838610 0.032071819 5.2750969 52.455096 6679.0869 5.3851877e+08 0.072226696 0.030195956 5.1702270 52.350226 6680.9724 5.1252196e+08 0.073124416 0.029651388 5.0687608 52.248761 6682.8578 4.8999419e+08 0.073573715 0.031079931 4.9672947 52.147296 6684.7432 4.7364551e+08 0.073308231 0.032691808 4.8732825 52.053284 6686.6287 4.6005841e+08 0.071940421 0.034126862 4.7808019 51.960803 6688.5141 4.4487551e+08 0.069420801 0.033903868 4.6871866 51.866654 6690.3996 4.3110424e+08 0.067992766 0.033070073 4.5857207 51.760960 6692.2850 4.1336589e+08 0.066968836 0.032434358 4.4842548 51.655266 6694.1705 3.9875946e+08 0.065986700 0.031022119 4.3860059 51.549573 6696.0559 3.8568063e+08 0.065781081 0.029699012 4.2887676 51.443879 6697.9413 3.6686428e+08 0.065100400 0.030210394 4.1948754 51.343413 6699.8268 3.5101011e+08 0.063785384 0.030827540 4.1060945 51.250933 6701.7122 3.3853119e+08 0.062275060 0.032454498 4.0173137 51.158453 6703.5977 3.2649585e+08 0.062524153 0.035170820 3.9226773 51.056824 6705.4831 3.1987209e+08 0.062626996 0.037527503 3.8254391 50.951130 6707.3686 3.0854982e+08 0.062352752 0.040134029 3.7282006 50.845436 6709.2540 2.9439972e+08 0.061769297 0.040970979 3.6309616 50.739742 6711.1395 2.7991391e+08 0.060295374 0.040850895 3.5337227 50.634048 6713.0249 2.6467346e+08 0.058696377 0.043776684 3.4517332 50.541062 6714.9103 2.5916270e+08 0.056934371 0.047371848 3.3703507 50.448581 6716.7958 2.5259882e+08 0.055196511 0.049573484 3.2848706 50.353779 6718.6812 2.4867423e+08 0.053186626 0.050873382 3.1876324 50.252312 6720.5667 2.3911089e+08 0.053213130 0.050354107 3.0903941 50.150846 6722.4521 2.2579535e+08 0.052901953 0.050046265 3.0007075 50.045604 6724.3376 2.1983334e+08 0.050354441 0.047107777 2.9119247 49.939910 6726.2230 2.1017970e+08 0.047502927 0.040953379 2.8209106 49.834216 6728.1085 1.9995653e+08 0.047075077 0.039781813 2.7279002 49.728522 6729.9939 1.8998552e+08 0.045969485 0.040382970 2.6367788 49.624975 6731.8793 1.8144228e+08 0.044571492 0.043500076 2.5553958 49.532495 6733.7648 1.8066239e+08 0.043673458 0.048076551 2.4740129 49.440014 6735.6502 1.7910240e+08 0.044853993 0.049983699 2.3892320 49.339525 6737.5357 1.7232979e+08 0.046201702 0.055841967 2.3004492 49.229604 6739.4211 1.6334060e+08 0.046603657 0.063341920 2.2120633 49.120080 6741.3066 1.5596364e+08 0.045425791 0.066633023 2.1275082 49.014386 6743.1920 1.5076692e+08 0.042166690 0.072342708 2.0429532 48.908693 6745.0775 1.4602606e+08 0.039609665 0.078599446 1.9553181 48.802999 6746.9629 1.3712113e+08 0.035363463 0.067792556 1.8665353 48.697305 6748.8483 1.2948147e+08 0.035604369 0.071480037 1.7792881 48.591611 6750.7338 1.2520722e+08 0.032966036 0.073257094 1.6947332 48.485918 6752.6192 1.2022308e+08 0.030438906 0.073417915 1.6101595 48.380224 6754.5047 1.1749813e+08 0.029258533 0.075401897 1.5214037 48.274529 6756.3901 1.1325397e+08 0.027067176 0.075170732 1.4326203 48.168835 6758.2756 1.0959284e+08 0.027186375 0.074288029 1.3491862 48.063141 6760.1610 1.0587393e+08 0.027823240 0.076368297 1.2688589 47.957447 6762.0464 1.0025075e+08 0.031652797 0.077975921 1.1874018 47.851753 6763.9319 96249918. 0.034514977 0.079275859 1.1028467 47.746059 6765.8173 92425099. 0.036257338 0.079680401 1.0182917 47.640366 6767.7028 87476138. 0.034370298 0.081188835 0.93754986 47.534672 6769.5882 81678261. 0.030406795 0.085880962 0.85722260 47.428978 6771.4737 75837308. 0.027258247 0.090453993 0.77689534 47.323284 6773.3591 74521408. 0.024002885 0.095027024 0.69656808 47.217591 6775.2446 73300618. 0.020794434 0.099600055 0.61624082 47.111897 6777.1300 69176909. 0.017802517 0.10417309 0.53591356 47.006203 6779.0154 65420272. 0.015062432 0.10874612 0.45558631 46.900509 6780.9009 59555140. 0.012725084 0.11331915 0.37525860 46.794815 6782.7863 54833481. 0.014914911 0.11789218 0.29493079 46.689121 6784.6718 54201733. 0.0069722521 0.12246521 0.21460322 46.581563 6786.5572 55442100. -0.0059481838 0.12703824 0.13427596 46.471641