# # 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 = 45.891190 km # Date (UTC) = 2013-02-03T09:56:05.696 # Date (julian) = 2456326.91395481 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6498.4073 4.9503177e+10 0.031359492 0.031802929 86.580105 64.921582 6500.2008 4.6967534e+10 0.038074864 0.032343752 87.037229 64.693738 6501.9943 4.4770918e+10 0.045268579 0.032884574 87.485670 64.459114 6503.7878 4.3367791e+10 0.053200240 0.033425397 87.926627 64.225979 6505.5812 4.1795769e+10 0.061539425 0.033966220 88.366002 63.999996 6507.3747 3.9656731e+10 0.070087533 0.034507042 88.788357 63.765171 6509.1682 3.7447047e+10 0.079023353 0.035047865 89.210553 63.521236 6510.9617 3.5398544e+10 0.088455250 0.035588687 89.623948 63.286163 6512.7552 3.3455919e+10 0.098347093 0.036129510 90.028440 63.051602 6514.5487 3.1268199e+10 0.10844610 0.036670333 90.424149 62.809334 6516.3422 2.9100918e+10 0.11887777 0.037211155 90.811213 62.572430 6518.1357 2.7220495e+10 0.12979566 0.037751978 91.129444 62.373523 6519.9292 2.5597553e+10 0.14113432 0.038292800 91.441428 62.174071 6521.7227 2.4110862e+10 0.15270974 0.038833623 91.814910 61.930059 6523.5162 2.2684043e+10 0.16008057 0.039307042 92.167140 61.694588 6525.3097 2.1271018e+10 0.16686650 0.039746875 92.434612 61.511581 6527.1031 2.0047307e+10 0.17268365 0.040791354 92.766029 61.284822 6528.8966 1.9040451e+10 0.17627378 0.042153786 93.059873 61.076040 6530.6901 1.7830703e+10 0.17952754 0.044794864 93.338210 60.873517 6532.4836 1.6850759e+10 0.18220486 0.047088205 93.661986 60.638511 6534.2771 1.5825853e+10 0.18203712 0.048022076 93.915378 60.448470 6536.0706 1.4693688e+10 0.18018857 0.047853671 94.224625 60.218280 6537.8641 1.3683930e+10 0.18042811 0.049092607 94.497297 60.010942 6539.6576 1.2737461e+10 0.17955278 0.050439619 94.739994 59.820913 6541.4511 1.1945322e+10 0.17742648 0.051180248 94.972203 59.630925 6543.2446 1.1223583e+10 0.17572272 0.051446082 95.277169 59.395693 6545.0381 1.0465752e+10 0.17455812 0.052455908 95.523779 59.193373 6546.8316 9.7606603e+09 0.17261142 0.053148759 95.748971 59.003366 6548.6250 9.2241361e+09 0.17069869 0.053854305 95.974207 58.813322 6550.4185 8.7480228e+09 0.16945809 0.055090157 96.199381 58.623332 6552.2120 8.2896709e+09 0.16802064 0.055533400 96.421006 58.433316 6554.0055 7.8612507e+09 0.16562368 0.054832496 96.638589 58.243271 6555.7990 7.4792476e+09 0.16363805 0.054182006 96.849745 58.053230 6557.5925 7.1312711e+09 0.16180462 0.053494726 97.060862 57.858529 6559.3860 6.7780802e+09 0.15909809 0.052343614 97.271974 57.663223 6561.1795 6.3899604e+09 0.15617760 0.051284235 97.483130 57.473179 6562.9730 6.0195000e+09 0.15377730 0.049954082 97.688430 57.283181 6564.7665 5.7010516e+09 0.15111245 0.048424235 97.889670 57.090326 6566.5600 5.4388533e+09 0.14827042 0.046866118 98.086751 56.893245 6568.3534 5.1925655e+09 0.14575487 0.045446758 98.283779 56.703141 6570.1469 4.9620149e+09 0.14362360 0.044856641 98.480837 56.509165 6571.9404 4.7303569e+09 0.14141740 0.044246425 98.676913 56.313089 6573.7339 4.5077922e+09 0.13900830 0.043068525 98.866897 56.123102 6575.5274 4.2731183e+09 0.13731423 0.041845544 99.056926 55.928003 6577.3209 4.0011473e+09 0.13559200 0.039716305 99.244861 55.733031 6579.1144 3.7554631e+09 0.13331256 0.037007608 99.427862 55.542987 6580.9079 3.5728366e+09 0.13139813 0.035681732 99.578655 55.381447 6582.7014 3.4360387e+09 0.12980234 0.035102929 99.728054 55.219780 6584.4949 3.3089592e+09 0.12782169 0.034245935 99.904020 55.022697 6586.2884 3.1403614e+09 0.12597498 0.033167568 100.07995 54.825654 6588.0819 2.9710488e+09 0.12470857 0.033352595 100.24670 54.640363 6589.8753 2.8357748e+09 0.12277398 0.031309367 100.38746 54.488337 6591.6688 2.7000081e+09 0.12041839 0.028447203 100.54188 54.314473 6593.4623 2.5669871e+09 0.11836861 0.026672394 100.70864 54.119916 6595.2558 2.4367506e+09 0.11611892 0.025650101 100.84375 53.962296 6597.0493 2.3193456e+09 0.11377089 0.025707166 100.98858 53.793330 6598.8428 2.2229127e+09 0.11175067 0.025004781 101.15750 53.596249 6600.6363 2.1316646e+09 0.11131304 0.026297983 101.29226 53.433342 6602.4298 2.0406562e+09 0.11021545 0.027149869 101.42470 53.272111 6604.2233 1.9500866e+09 0.10858628 0.026203852 101.58654 53.075086 6606.0168 1.8680226e+09 0.10778848 0.027473827 101.72295 52.904425 6607.8103 1.7906618e+09 0.10542655 0.024107032 101.84682 52.746769 6609.6038 1.7203798e+09 0.10234594 0.023885275 101.99834 52.553934 6611.3972 1.6595624e+09 0.099589968 0.024705131 102.13853 52.375510 6613.1907 1.5855464e+09 0.098714633 0.023643572 102.26240 52.217853 6614.9842 1.5050994e+09 0.097872572 0.023262398 102.40785 52.032738 6616.7777 1.4293086e+09 0.096836441 0.023404362 102.55259 51.846538 6618.5712 1.3587000e+09 0.096510739 0.024202128 102.67081 51.688921 6620.3647 1.3182563e+09 0.095949369 0.024884723 102.78904 51.531284 6622.1582 1.2829637e+09 0.094829491 0.024715886 102.90728 51.373629 6623.9517 1.2310212e+09 0.093251808 0.024844410 103.04182 51.187455 6625.7452 1.1739505e+09 0.092545937 0.026286824 103.17577 51.002311 6627.5387 1.1109332e+09 0.091063236 0.025524890 103.29398 50.844693 6629.3322 1.0689482e+09 0.090084040 0.026049049 103.40925 50.684093 6631.1257 1.0355864e+09 0.088561488 0.025943530 103.52186 50.520806 6632.9191 1.0038874e+09 0.087470342 0.026142558 103.63025 50.361743 6634.7126 9.7641090e+08 0.086124406 0.026378826 103.73722 50.204087 6636.5061 9.5156909e+08 0.084688880 0.026353203 103.84967 50.046467 6638.2996 9.2342226e+08 0.083761971 0.025658589 103.96643 49.881048 6640.0931 8.8763115e+08 0.083807763 0.025259260 104.10016 49.683967 6641.8866 8.5587190e+08 0.083808877 0.025151311 104.21311 49.517515 6643.6801 8.2672423e+08 0.082920006 0.025295304 104.32010 49.359840 6645.4736 8.0595419e+08 0.081986310 0.025673541 104.42705 49.196605 6647.2671 7.7978860e+08 0.080921171 0.026578396 104.53275 49.034612 6649.0606 7.5304893e+08 0.079786105 0.027550199 104.63410 48.876956 6650.8541 7.3048446e+08 0.079532336 0.026450755 104.73545 48.719300 6652.6475 7.0814834e+08 0.079304074 0.027428688 104.83680 48.561642 6654.4410 6.8536171e+08 0.078661224 0.027848338 104.93814 48.404012 6656.2345 6.5798458e+08 0.077322018 0.028229266 105.03946 48.246394 6658.0280 6.3417577e+08 0.076385781 0.030110781 105.14081 48.083697 6659.8215 6.1689971e+08 0.075289249 0.031663229 105.24149 47.921085 6661.6150 5.9893429e+08 0.074164130 0.032848186 105.33721 47.763430 6663.4085 5.7414182e+08 0.073315091 0.032370008 105.43292 47.605787 6665.2020 5.5016868e+08 0.073208939 0.028216162 105.52861 47.448167 6666.9955 5.2662641e+08 0.072993037 0.027102577 105.62432 47.287332 6668.7890 5.0846521e+08 0.072038750 0.028168959 105.72004 47.124044 6670.5825 4.8618493e+08 0.072190129 0.027058786 105.81576 46.965215 6672.3760 4.6610636e+08 0.072010294 0.027097510 105.91149 46.807559 6674.1694 4.4772204e+08 0.071239934 0.029097731 106.00721 46.649902 6675.9629 4.2481480e+08 0.069398661 0.031642739 106.10157 46.490906 6677.7564 4.0111822e+08 0.068584959 0.031282873 106.19164 46.327660 6679.5499 3.7769461e+08 0.068526457 0.029813340 106.28171 46.167002 6681.3434 3.5653811e+08 0.069386394 0.029920820 106.37180 46.009344 6683.1369 3.4039104e+08 0.069887941 0.031389217 106.46189 45.851688 6684.9304 3.2393578e+08 0.069780299 0.032701306 106.55198 45.694032 6686.7239 3.0972544e+08 0.068497023 0.034182254 106.64205 45.531281 6688.5174 2.9863236e+08 0.066222625 0.033904619 106.73212 45.368784 6690.3109 2.8562195e+08 0.065053438 0.033080238 106.82221 45.211128 6692.1044 2.7152152e+08 0.064255773 0.032644139 106.91028 45.053473 6693.8979 2.6031881e+08 0.063518356 0.031296069 106.99474 44.895818 6695.6913 2.5392724e+08 0.063479776 0.029732482 107.07919 44.738183 6697.4848 2.4431374e+08 0.062949546 0.030152622 107.16363 44.580563 6699.2783 2.3349709e+08 0.061808768 0.031333614 107.23673 44.440317 6701.0718 2.2572374e+08 0.060264322 0.031514827 107.30711 44.304249 6702.8653 2.2006055e+08 0.059983757 0.033567685 107.38699 44.153615 6704.6588 2.1567254e+08 0.060067131 0.036501060 107.47145 43.995959 6706.4523 2.1007427e+08 0.059817299 0.039233587 107.55085 43.838304 6708.2458 2.0187563e+08 0.059458403 0.040311230 107.63037 43.679962 6710.0393 1.9367353e+08 0.058398767 0.040504183 107.71480 43.516712 6711.8328 1.8419155e+08 0.056534345 0.041639695 107.79730 43.355400 6713.6263 1.7571643e+08 0.054730454 0.045951673 107.87613 43.197745 6715.4198 1.7037557e+08 0.053144649 0.047807899 107.95496 43.040088 6717.2132 1.6809981e+08 0.051286617 0.049861078 108.03379 42.882430 6719.0067 1.6364016e+08 0.049136158 0.051363440 108.10218 42.741923 6720.8002 1.5614505e+08 0.049471320 0.050327046 108.16786 42.605858 6722.5937 1.4687347e+08 0.048756861 0.049871214 108.24225 42.455502 6724.3872 1.3771173e+08 0.045996984 0.046693214 108.32106 42.297882 6726.1807 1.3025655e+08 0.043102338 0.040952997 108.39989 42.140231 6727.9742 1.2672340e+08 0.042470137 0.039662483 108.47809 41.981953 6729.7677 1.2199199e+08 0.041348990 0.040533747 108.55129 41.818666 6731.5612 1.1579500e+08 0.039817539 0.042866867 108.62636 41.657275 6733.3547 1.0928103e+08 0.038866770 0.045849896 108.70517 41.499655 6735.1482 1.0273889e+08 0.039234407 0.049450713 108.77404 41.356683 6736.9416 1.0040032e+08 0.040667674 0.053914969 108.83504 41.225309 6738.7351 97853563. 0.041382401 0.061368382 108.90124 41.082717 6740.5286 94746387. 0.040737475 0.064953440 108.97444 40.925060 6742.3221 94676909. 0.038568369 0.069395667 109.04763 40.763740 6744.1156 91267845. 0.034639360 0.077882838 109.12083 40.600455 6745.9091 88184851. 0.033880769 0.078949068 109.18909 40.442126 6747.7026 83726050. 0.029697947 0.067119283 109.25719 40.284502 6749.4961 75761618. 0.028282455 0.072142103 109.33039 40.126847 6751.2896 72836821. 0.026059402 0.073834108 109.39966 39.977661 6753.0831 74306421. 0.024229451 0.073246130 109.46065 39.846287 6754.8766 73271816. 0.022843676 0.074803845 109.52290 39.708826 6756.6701 72797335. 0.020631644 0.075891062 109.59045 39.545576 6758.4635 68041081. 0.020888594 0.074685556 109.65801 39.384644 6760.2570 63660614. 0.021090980 0.076551433 109.72558 39.226987 6762.0505 62059003. 0.024569760 0.077969334 109.79314 39.069331 6763.8440 58664231. 0.026661702 0.079008252 109.86071 38.911675 6765.6375 56477259. 0.027530480 0.079647574 109.91856 38.776688 6767.4310 55161089. 0.024982562 0.081493152 109.97486 38.645313 6769.2245 58194110. 0.019497563 0.084998764 110.03939 38.494750 6771.0180 54983144. 0.011234722 0.089348769 110.10694 38.337132 6772.8115 52792666. -0.020352239 0.093698775 110.17451 38.174101 6774.6050 51714261. -0.00041736528 0.098048780 110.24107 38.011820 6776.3985 51337567. 0.045816277 0.10239879 110.30301 37.854163