# # 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 = 60.219620 km # Date (UTC) = 2011-12-06T10:42:09.659 # Date (julian) = 2455901.94594512 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6504.7016 1.3330329e+11 0.068450802 0.033700975 92.440037 32.699924 6507.2462 1.0791525e+11 0.079162709 0.034468291 92.507560 32.574391 6509.7908 8.8456568e+10 0.089995584 0.035235608 92.574134 32.454559 6512.3354 7.4750342e+10 0.10119074 0.036002924 92.642240 32.325521 6514.8800 6.4042340e+10 0.11271634 0.036770240 92.712134 32.185733 6517.4246 5.5397860e+10 0.12461076 0.037537557 92.778469 32.055097 6519.9692 4.8481497e+10 0.13696058 0.038304873 92.840596 31.935279 6522.5138 4.2872903e+10 0.14836480 0.039051799 92.904313 31.812395 6525.0584 3.7974466e+10 0.15497939 0.039775549 92.974207 31.677598 6527.6030 3.3696404e+10 0.15934455 0.041154260 93.042534 31.544929 6530.1476 3.0166823e+10 0.16359646 0.044035336 93.104661 31.420675 6532.6922 2.7308626e+10 0.16682773 0.047262451 93.166788 31.296421 6535.2368 2.4709587e+10 0.16838613 0.048121576 93.236281 31.162169 6537.7814 2.2219893e+10 0.16943118 0.049053617 93.306175 31.027373 6540.3260 2.0034527e+10 0.17038724 0.051008107 93.368735 30.906721 6542.8706 1.8209916e+10 0.16982275 0.051332761 93.430870 30.786888 6545.4152 1.6643514e+10 0.16928624 0.052459287 93.498376 30.653242 6547.9598 1.5161859e+10 0.16819489 0.053652351 93.568269 30.513453 6550.5044 1.3867175e+10 0.16637035 0.055111651 93.629754 30.387428 6553.0490 1.2854818e+10 0.16418946 0.055310450 93.687446 30.267612 6555.5936 1.2013991e+10 0.16126051 0.054354625 93.750455 30.141269 6558.1382 1.1192469e+10 0.15872980 0.053121571 93.820349 30.006472 6560.6828 1.0360019e+10 0.15556845 0.051658711 93.884961 29.878157 6563.2274 9.5877493e+09 0.15276937 0.049665365 93.942650 29.758340 6565.7720 8.9097369e+09 0.15011059 0.047441832 94.001634 29.634939 6568.3166 8.2769719e+09 0.14841381 0.045480675 94.066548 29.495129 6570.8611 7.6642183e+09 0.14685019 0.044560792 94.130186 29.358849 6573.4057 7.1466021e+09 0.14502434 0.043331881 94.187874 29.239033 6575.9503 6.7148670e+09 0.14267175 0.041421216 94.245563 29.119217 6578.4949 6.3242434e+09 0.14011571 0.037868048 94.309908 28.985572 6581.0395 5.9479191e+09 0.13745396 0.035584637 94.374809 28.850776 6583.5841 5.5845868e+09 0.13538295 0.034726005 94.433077 28.729761 6586.1287 5.2806939e+09 0.13289353 0.033169632 94.490769 28.609944 6588.6733 4.9943167e+09 0.13081424 0.033155071 94.553266 28.480142 6591.2179 4.7017332e+09 0.12782681 0.028956010 94.618167 28.345345 6593.7625 4.4120780e+09 0.12498757 0.026393310 94.675343 28.220479 6596.3071 4.1505631e+09 0.12148332 0.025725878 94.728603 28.100647 6598.8517 3.9121980e+09 0.11871522 0.025000528 94.786641 27.974673 6601.3963 3.6781957e+09 0.11795047 0.027232329 94.851542 27.839876 6603.9409 3.4582138e+09 0.11562792 0.026106260 94.911697 27.711182 6606.4855 3.2711460e+09 0.11427310 0.026631531 94.964950 27.591366 6609.0301 3.1136809e+09 0.11053838 0.023714872 95.019996 27.469242 6611.5747 2.9651214e+09 0.10748656 0.024591970 95.084897 27.334445 6614.1193 2.8111392e+09 0.10669053 0.023858305 95.148039 27.201910 6616.6639 2.6710926e+09 0.10549070 0.023386496 95.201292 27.082094 6619.2085 2.5417553e+09 0.10506363 0.024576218 95.254545 26.962278 6621.7531 2.4156292e+09 0.10429288 0.024839834 95.313771 26.829016 6624.2977 2.2877945e+09 0.10259899 0.025021656 95.373678 26.694220 6626.8423 2.1644824e+09 0.10092292 0.025517766 95.431610 26.572808 6629.3869 2.0626440e+09 0.099699670 0.026039157 95.489309 26.452975 6631.9315 1.9605949e+09 0.097884986 0.026025384 95.548425 26.323545 6634.4761 1.8617488e+09 0.096342687 0.026361569 95.608332 26.188749 6637.0207 1.7504085e+09 0.094809483 0.026151292 95.665053 26.057140 6639.5653 1.6458457e+09 0.094208280 0.025426038 95.719971 25.927336 6642.1099 1.5558030e+09 0.094507096 0.025156192 95.773831 25.803877 6644.6545 1.4798314e+09 0.093277505 0.025414338 95.827084 25.684061 6647.1990 1.4177809e+09 0.091763752 0.026542580 95.882880 25.558523 6649.7436 1.3537900e+09 0.090500916 0.026608609 95.942791 25.423727 6652.2882 1.2850643e+09 0.089719571 0.027329828 96.000180 25.294600 6654.8328 1.2203470e+09 0.088359295 0.027681428 96.053437 25.174767 6657.3774 1.1681029e+09 0.085888257 0.029338925 96.106903 25.053681 6659.9220 1.1173715e+09 0.083877835 0.031642261 96.161820 24.923877 6662.4666 1.0687715e+09 0.081897586 0.032782465 96.217350 24.793461 6665.0112 1.0116730e+09 0.080972000 0.028528737 96.277261 24.658664 6667.5558 9.5829365e+08 0.080439568 0.027307621 96.335844 24.525661 6670.1004 9.1188359e+08 0.079888988 0.027282110 96.384659 24.405844 6672.6450 8.7197562e+08 0.079684941 0.027253462 96.433473 24.286027 6675.1896 8.3704247e+08 0.078054839 0.030161534 96.491896 24.157559 6677.7342 8.0233541e+08 0.076222368 0.031314463 96.551803 24.027756 6680.2788 7.6552729e+08 0.076550309 0.029501622 96.607403 23.893642 6682.8234 7.2666316e+08 0.077450068 0.031053654 96.662320 23.758846 6685.3680 6.9357499e+08 0.077232601 0.033093535 96.711988 23.636934 6687.9126 6.6212509e+08 0.074815687 0.033833937 96.760803 23.517117 6690.4572 6.3700741e+08 0.072610451 0.033063469 96.813325 23.391228 6693.0018 6.1344977e+08 0.071538329 0.031603475 96.868251 23.261405 6695.5464 5.8623103e+08 0.070874685 0.029759109 96.926187 23.128578 6698.0910 5.6177363e+08 0.069942079 0.030342701 96.986098 22.993783 6700.6356 5.3431968e+08 0.067874019 0.031139145 97.043008 22.861988 6703.1802 5.0886619e+08 0.067225365 0.034126092 97.097925 22.732184 6705.7248 4.8557408e+08 0.067231121 0.037957105 97.146539 22.608352 6708.2694 4.6780796e+08 0.066672602 0.040336911 97.190915 22.488535 6710.8140 4.5119145e+08 0.064830774 0.040655819 97.238922 22.365277 6713.3586 4.3512103e+08 0.062288732 0.044983468 97.293840 22.235473 6715.9032 4.1965572e+08 0.059953325 0.048302314 97.348757 22.105669 6718.4478 3.9931729e+08 0.057309608 0.050509760 97.403675 21.975865 6720.9924 3.8306091e+08 0.057071968 0.050304785 97.458592 21.844371 6723.5369 3.6591541e+08 0.055580432 0.049668410 97.513509 21.709576 6726.0815 3.5036806e+08 0.051375054 0.040952103 97.566754 21.576449 6728.6261 3.3642016e+08 0.050764774 0.040515549 97.616685 21.446626 6731.1707 3.2344716e+08 0.048967883 0.042089828 97.668275 21.316809 6733.7153 3.1302713e+08 0.047660195 0.047808075 97.723193 21.187004 6736.2599 3.0124728e+08 0.049428139 0.051337697 97.778110 21.055554 6738.8045 2.8935985e+08 0.050697378 0.061750395 97.833027 20.920757 6741.3491 2.7797595e+08 0.049321969 0.066754419 97.886313 20.787592 6743.8937 2.6506525e+08 0.044334803 0.077076468 97.936237 20.657789 6746.4383 2.5502318e+08 0.041335251 0.073891326 97.987777 20.527985 6748.9829 2.4583822e+08 0.039162415 0.072188054 98.042694 20.398181 6751.5275 2.3602292e+08 0.035117430 0.073934706 98.096010 20.268377 6754.0721 2.2854395e+08 0.032966334 0.076097511 98.145934 20.138574 6756.6167 2.2088378e+08 0.029962041 0.075753785 98.195858 20.008770 6759.1613 2.1277322e+08 0.030567547 0.075858879 98.245782 19.878966 6761.7059 2.0647488e+08 0.033318339 0.078026546 98.295705 19.749163 6764.2505 1.9673615e+08 0.037535286 0.079495286 98.345629 19.619359 6766.7951 1.8591658e+08 0.038359782 0.081512262 98.397109 19.489555 6769.3397 1.7840864e+08 0.033007812 0.085278157 98.452026 19.359752 6771.8843 1.7099865e+08 0.028355672 0.091449923 98.507603 19.222465 6774.4289 1.6519138e+08 0.023681997 0.097621688 98.564660 19.068408 6776.9735 1.5935519e+08 0.019023844 0.10379345 98.617758 18.927825 6779.5181 1.5336773e+08 0.014390160 0.10996522 98.667693 18.798001 6782.0627 1.4637454e+08 0.0097894316 0.11613699 98.717622 18.668189 6784.6073 1.4060416e+08 0.0051774771 0.12230875 98.767546 18.538384 6787.1519 1.3504289e+08 0.00054936378 0.12848052 98.817469 18.408580 6789.6965 1.2986445e+08 -0.0040940657 0.13465228 98.867393 18.278776 6792.2411 1.2561369e+08 -0.0087544280 0.14082405 98.921220 18.141946 6794.7857 1.1970023e+08 -0.013418563 0.14699581 98.978277 17.999302 6797.3303 1.1558215e+08 -0.018102229 0.15316758 99.025701 17.866861 6799.8748 1.1137188e+08 -0.022793004 0.15933935 99.070635 17.737057 6802.4194 1.0528616e+08 -0.027495085 0.16551111 99.125165 17.592573 6804.9640 1.0004636e+08 -0.032211453 0.17168288 99.181945 17.444945 6807.5086 96134968. -0.036931833 0.17785464 99.231869 17.315141 6810.0532 93423545. -0.041644062 0.18402641 99.282049 17.184671 6812.5978 92375870. -0.046333598 0.19019817 99.339105 17.036321 6815.1424 88900960. -0.051061333 0.19636994 99.392728 16.893225 6817.6870 85243619. -0.055803661 0.20254171 99.437662 16.763421 6820.2316 81577466. -0.060563078 0.20871347 99.485994 16.630019 6822.7762 74687693. -0.065464186 0.21488524 99.543050 16.487374 6825.3208 71809521. -0.070276793 0.22105700 99.596343 16.351505 6827.8654 70289415. -0.075078275 0.22722877 99.646267 16.221701 6830.4100 70329829. -0.079863140 0.23340053 99.696942 16.082166 6832.9546 68954393. -0.084839799 0.23957230 99.748296 15.933816 6835.4992 64334282. -0.090324458 0.24574406 99.799647 15.785466 6838.0438 61369908. -0.096279832 0.25191583 99.851108 15.637227 6840.5884 57957429. -0.10425362 0.25808760 99.908165 15.494582 6843.1330 55068093. -0.12891291 0.26425936 99.961987 15.355364 6845.6776 51538723. -0.11724421 0.27043113 100.00692 15.225561 6848.2222 48593416. -0.081894565 0.27660289 100.05505 15.092369