# # 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 = 48.869987 km # Date (UTC) = 2014-01-15T07:22:48.393 # Date (julian) = 2456672.80750455 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6499.3547 5.7574895e+10 0.041451380 0.032088614 10.202970 51.647304 6501.3775 5.4803605e+10 0.048375589 0.032698601 10.095813 51.544116 6503.4004 5.1879483e+10 0.055541010 0.033308587 9.9798898 51.432487 6505.4232 4.8692807e+10 0.062953065 0.033918573 9.8574208 51.314555 6507.4461 4.5240533e+10 0.070607696 0.034528560 9.7366206 51.198291 6509.4689 4.1951932e+10 0.078629420 0.035138546 9.6186884 51.084894 6511.4918 3.9043792e+10 0.087163505 0.035748532 9.5031620 50.973163 6513.5147 3.6628226e+10 0.096362733 0.036358518 9.3999732 50.869974 6515.5375 3.4645616e+10 0.10629407 0.036968505 9.2967843 50.766784 6517.5604 3.2812629e+10 0.11684070 0.037578491 9.1841072 50.657026 6519.5832 3.0834129e+10 0.12779566 0.038188477 9.0661742 50.543629 6521.6061 2.8713743e+10 0.13909729 0.038798464 8.9482413 50.428241 6523.6289 2.6546231e+10 0.14603580 0.039334991 8.8303087 50.310309 6525.6518 2.4563775e+10 0.15178435 0.039707828 8.7167591 50.195831 6527.6746 2.2881644e+10 0.15790670 0.041206265 8.6175389 50.092641 6529.6975 2.1475536e+10 0.16306824 0.043346825 8.5183186 49.989451 6531.7203 2.0171585e+10 0.16737601 0.046277149 8.4089681 49.875727 6533.7432 1.8811362e+10 0.17046933 0.047835424 8.2955715 49.757795 6535.7661 1.7468650e+10 0.17151548 0.047891987 8.1914279 49.649405 6537.7889 1.6334613e+10 0.17302012 0.049057160 8.0961768 49.550185 6539.8118 1.5365926e+10 0.17293099 0.050626243 8.0009257 49.450965 6541.8346 1.4396952e+10 0.17068192 0.051055871 7.8921970 49.333213 6543.8575 1.3420943e+10 0.16861578 0.051606940 7.7833359 49.215279 6545.8803 1.2487729e+10 0.16679470 0.052463454 7.6851672 49.108930 6547.9032 1.1741210e+10 0.16594514 0.053630826 7.5899160 49.005742 6549.9260 1.1081118e+10 0.16493328 0.054909979 7.4910447 48.898632 6551.9489 1.0361118e+10 0.16362057 0.055568824 7.3821837 48.780698 6553.9717 9.6490824e+09 0.16171157 0.054846587 7.2744009 48.663669 6555.9946 9.0112952e+09 0.16012745 0.054017668 7.1831185 48.560480 6558.0174 8.4965473e+09 0.15901683 0.053224437 7.0918362 48.457292 6560.0403 8.0326165e+09 0.15723656 0.052237972 6.9934888 48.348574 6562.0632 7.5340472e+09 0.15505735 0.050819808 6.8891639 48.235178 6564.0860 7.0330354e+09 0.15266601 0.048732618 6.7905723 48.125222 6566.1089 6.6033710e+09 0.15094141 0.047121300 6.7032583 48.022033 6568.1317 6.2518155e+09 0.14972463 0.045650582 6.6159444 47.918845 6570.1546 5.8999527e+09 0.14849518 0.044853480 6.5147259 47.803604 6572.1774 5.5476109e+09 0.14687859 0.044128548 6.4104009 47.685671 6574.2003 5.2014335e+09 0.14456651 0.042758812 6.3164994 47.576772 6576.2231 4.9115833e+09 0.14222943 0.041114562 6.2291857 47.473584 6578.2460 4.6759998e+09 0.13942732 0.038261170 6.1407106 47.369022 6580.2688 4.4144873e+09 0.13669594 0.036272304 6.0409214 47.251089 6582.2917 4.1532633e+09 0.13434948 0.035214416 5.9411322 47.133155 6584.3146 3.9129080e+09 0.13225421 0.034344164 5.8559527 47.028322 6586.3374 3.7131306e+09 0.13047078 0.033166935 5.7726077 46.925134 6588.3603 3.5343876e+09 0.12914181 0.033259621 5.6831982 46.816507 6590.3831 3.3293572e+09 0.12730790 0.030349418 5.5834093 46.698574 6592.4060 3.1274030e+09 0.12534997 0.027679209 5.4863195 46.583061 6594.4288 2.9491677e+09 0.12327797 0.025937122 5.4029747 46.479873 6596.4517 2.7996105e+09 0.12075821 0.025725220 5.3196300 46.376685 6598.4745 2.6657796e+09 0.11893909 0.025180608 5.2286101 46.263994 6600.4974 2.5141386e+09 0.11860765 0.026012403 5.1333566 46.146062 6602.5202 2.3708279e+09 0.11783017 0.027072684 5.0450815 46.034608 6604.5431 2.2386179e+09 0.11664958 0.026393746 4.9656938 45.931402 6606.5659 2.1248793e+09 0.11567511 0.026486977 4.8863060 45.828197 6608.5888 2.0353525e+09 0.11272233 0.023716804 4.8069290 45.725008 6610.6117 1.9508890e+09 0.10949023 0.024587400 4.7275529 45.621820 6612.6345 1.8733378e+09 0.10753003 0.023846672 4.6436299 45.512720 6614.6574 1.7836020e+09 0.10599667 0.023487596 4.5529123 45.394786 6616.6802 1.6840088e+09 0.10420073 0.023389059 4.4644208 45.279746 6618.7031 1.5972654e+09 0.10304540 0.024301697 4.3850449 45.176558 6620.7259 1.5249057e+09 0.10169283 0.025001126 4.3056690 45.073370 6622.7488 1.4625338e+09 0.099615180 0.024558693 4.2186190 44.960205 6624.7716 1.3958493e+09 0.097570669 0.025275360 4.1279013 44.842271 6626.7945 1.3269312e+09 0.095440786 0.025578654 4.0444097 44.731297 6628.8173 1.2687413e+09 0.094223239 0.026034943 3.9690027 44.628109 6630.8402 1.2120467e+09 0.092808878 0.025930372 3.8935956 44.524921 6632.8630 1.1538695e+09 0.091719747 0.026135832 3.8079278 44.407690 6634.8859 1.0911629e+09 0.090554195 0.026391465 3.7217463 44.289757 6636.9088 1.0330366e+09 0.089267296 0.026196845 3.6436204 44.182848 6638.9316 9.8907030e+08 0.088264548 0.025631055 3.5682133 44.079660 6640.9545 9.4875950e+08 0.088888027 0.025153872 3.4928060 43.976471 6642.9773 9.1549240e+08 0.088428194 0.025191690 3.4173983 43.873283 6645.0002 8.8352627e+08 0.087356004 0.025451766 3.3419907 43.770094 6647.0230 8.4722709e+08 0.086092004 0.026449904 3.2589512 43.656461 6649.0459 8.0870166e+08 0.084840639 0.027570442 3.1727698 43.538527 6651.0687 7.7049895e+08 0.084422451 0.026536841 3.0940148 43.428021 6653.0916 7.3925954e+08 0.083887191 0.027572424 3.0225764 43.324833 6655.1144 7.1266756e+08 0.082439948 0.027657505 2.9511381 43.221645 6657.1373 6.8127133e+08 0.080471307 0.029060372 2.8696550 43.103946 6659.1602 6.4378761e+08 0.078890928 0.031801191 2.7880094 42.986013 6661.1830 6.1342076e+08 0.077455500 0.032628158 2.7143192 42.879572 6663.2059 5.9008276e+08 0.076068549 0.032426164 2.6428803 42.776383 6665.2287 5.7193737e+08 0.075307005 0.028172374 2.5687900 42.669364 6667.2516 5.4785286e+08 0.074576879 0.027195863 2.4871445 42.551430 6669.2744 5.1993629e+08 0.073343671 0.028073852 2.4062805 42.434310 6671.2973 4.9428621e+08 0.073291783 0.026869585 2.3388109 42.331122 6673.3201 4.7566350e+08 0.072801160 0.027937996 2.2713413 42.227934 6675.3430 4.5975131e+08 0.071181123 0.030455298 2.1962808 42.116850 6677.3658 4.3890595e+08 0.069641232 0.031838140 2.1146352 41.998916 6679.3887 4.1545079e+08 0.069500829 0.029946573 2.0376793 41.885861 6681.4115 3.9340741e+08 0.070555544 0.029973091 1.9702098 41.782673 6683.4344 3.7721627e+08 0.071067888 0.031825200 1.9027402 41.679485 6685.4573 3.6421515e+08 0.070811945 0.033187812 1.8274505 41.564336 6687.4801 3.5094327e+08 0.068936989 0.034075139 1.7503402 41.446404 6689.5030 3.3662224e+08 0.066713496 0.033563277 1.6790774 41.337413 6691.5258 3.2434174e+08 0.065829812 0.032877205 1.6116078 41.234224 6693.5487 3.1277351e+08 0.065005129 0.031415861 1.5436947 41.129753 6695.5715 3.0129864e+08 0.064735779 0.029754491 1.4711209 41.011822 6697.5944 2.8611666e+08 0.064143777 0.030166485 1.3985470 40.893890 6699.6172 2.7195996e+08 0.062810074 0.031020902 1.3304674 40.788950 6701.6401 2.5940787e+08 0.061164876 0.032348636 1.2629878 40.685745 6703.6629 2.4951472e+08 0.061295732 0.035334126 1.1936636 40.577203 6705.6858 2.3918786e+08 0.061358642 0.037887812 1.1211022 40.459291 6707.7086 2.3094116e+08 0.061006773 0.040085313 1.0499700 40.343702 6709.7315 2.2159255e+08 0.060060138 0.040667271 0.98645938 40.240496 6711.7544 2.1057416e+08 0.058146945 0.041550485 0.92294874 40.137291 6713.7772 2.0001302e+08 0.056178697 0.046497633 0.85364976 40.024680 6715.8001 1.8699867e+08 0.054640854 0.048196873 0.78107592 39.906748 6717.8229 1.7781708e+08 0.052809537 0.049823367 0.71243989 39.795215 6719.8458 1.7182289e+08 0.051644737 0.050566292 0.64893911 39.692027 6721.8686 1.6430404e+08 0.051958025 0.050565621 0.58543833 39.588839 6723.8915 1.5526040e+08 0.050323212 0.049866139 0.51364151 39.472168 6725.9143 1.4836740e+08 0.046685409 0.041004877 0.44106765 39.354235 6727.9372 1.4194015e+08 0.046117994 0.039711780 0.37171293 39.236303 6729.9600 1.3782546e+08 0.045046908 0.040405533 0.30367495 39.118371 6731.9829 1.3065529e+08 0.043624166 0.043706175 0.23993279 39.007884 6734.0058 1.2463095e+08 0.042816912 0.049353253 0.18040046 38.904694 6736.0286 1.2028268e+08 0.044618128 0.050463157 0.12086813 38.801504 6738.0515 1.1600768e+08 0.045929371 0.057604408 0.048484451 38.683787 6740.0743 1.1241461e+08 0.045819611 0.064177316 -0.024089409 38.565855 6742.0972 1.0775664e+08 0.043775674 0.068847522 -0.086480589 38.459434 6744.1200 1.0540969e+08 0.039445927 0.077886247 -0.14601256 38.356244 6746.1429 1.0213964e+08 0.038106855 0.077326168 -0.20776557 38.250389 6748.1657 99110648. 0.034750284 0.067888819 -0.27580357 38.136993 6750.1886 95364325. 0.032198703 0.072326149 -0.34358546 38.023340 6752.2114 93736492. 0.029578991 0.073889801 -0.40708758 37.905408 6754.2343 91485106. 0.028547022 0.075836698 -0.47058970 37.787477 6756.2571 89523039. 0.026229229 0.074828588 -0.53795593 37.669543 6758.2800 89502877. 0.026130795 0.074297424 -0.60599440 37.551608 6760.3029 84034880. 0.026827730 0.076638804 -0.66595915 37.443217 6762.3257 81333446. 0.031096334 0.077525448 -0.72152232 37.340029 6764.3486 80423514. 0.033959385 0.079499984 -0.77867630 37.234961 6766.3714 79687027. 0.035131785 0.080553902 -0.84671431 37.117029 6768.3943 77141265. 0.031825008 0.082274710 -0.91475232 36.999098 6770.4171 74224322. 0.027935734 0.087891416 -0.97860426 36.881164 6772.4400 71378735. 0.024483299 0.092797726 -1.0421064 36.763231 6774.4628 69127588. 0.021037625 0.097704037 -1.1056085 36.645299 6776.4857 67291582. 0.017603851 0.10261035 -1.1691107 36.527367 6778.5085 61841381. 0.014310445 0.10751666 -1.2326131 36.411764 6780.5314 57733022. 0.011074066 0.11242297 -1.2961156 36.298366 6782.5543 53353936. 0.0080532406 0.11732928 -1.3596180 36.183567 6784.5771 49103424. 0.0051711472 0.12223559 -1.4231202 36.065634 6786.6000 44956482. 0.0051623041 0.12714190 -1.4853805 35.949238 6788.6228 44342248. -0.0010840871 0.13204821 -1.5369749 35.846050 6790.6457 46259556. -0.010653742 0.13695452 -1.5885692 35.742862