# # 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 = 52.332406 km # Date (UTC) = 2014-12-16T10:31:26.791 # Date (julian) = 2457007.93850453 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6504.2153 3.8218425e+10 0.060645663 0.033554326 98.413726 27.777095 6505.9922 3.6172338e+10 0.068996719 0.034090156 98.457111 27.693425 6507.7692 3.3961228e+10 0.077440361 0.034625986 98.499746 27.609754 6509.5461 3.1955532e+10 0.086138421 0.035161816 98.540033 27.526085 6511.3231 3.0140899e+10 0.095112690 0.035697647 98.580320 27.442415 6513.1000 2.8372264e+10 0.10428615 0.036233477 98.620607 27.358745 6514.8769 2.6657857e+10 0.11362598 0.036769307 98.660892 27.275075 6516.6539 2.5023659e+10 0.12314530 0.037305137 98.701177 27.191405 6518.4308 2.3544675e+10 0.13289719 0.037840968 98.741462 27.107734 6520.2077 2.2173664e+10 0.14284649 0.038376798 98.781751 27.024055 6521.9847 2.0878047e+10 0.15295682 0.038912628 98.822041 26.940374 6523.7616 1.9646988e+10 0.15808510 0.039367874 98.862331 26.856692 6525.5385 1.8472109e+10 0.16307155 0.039720752 98.902619 26.771277 6527.3155 1.7386576e+10 0.16795135 0.040945509 98.942907 26.684508 6529.0924 1.6346723e+10 0.17078921 0.042382987 98.983194 26.597740 6530.8693 1.5373880e+10 0.17355473 0.045045767 99.023480 26.512008 6532.6463 1.4468038e+10 0.17693490 0.047224093 99.063765 26.428337 6534.4232 1.3616038e+10 0.17788490 0.048062948 99.104050 26.344667 6536.2002 1.2824078e+10 0.17713781 0.047969584 99.144334 26.260997 6537.9771 1.2074062e+10 0.17779622 0.049145879 99.184619 26.177326 6539.7540 1.1368668e+10 0.17722720 0.050556355 99.224904 26.093656 6541.5310 1.0737507e+10 0.17498944 0.051154343 99.265189 26.009986 6543.3079 1.0153370e+10 0.17323908 0.051462702 99.302750 25.926306 6545.0848 9.6048545e+09 0.17203274 0.052456327 99.339943 25.842624 6546.8618 9.0648641e+09 0.17019754 0.053173621 99.377135 25.758943 6548.6387 8.5551591e+09 0.16836338 0.053858384 99.416351 25.675269 6550.4156 8.0808136e+09 0.16730244 0.055089432 99.456636 25.591598 6552.1926 7.6599795e+09 0.16611265 0.055538296 99.496920 25.507928 6553.9695 7.2683242e+09 0.16402042 0.054847708 99.535882 25.424258 6555.7464 6.8976258e+09 0.16247550 0.054226173 99.573070 25.340588 6557.5234 6.5542320e+09 0.16110092 0.053538051 99.610257 25.256918 6559.3003 6.2194540e+09 0.15891883 0.052353284 99.648065 25.173249 6561.0773 5.9270603e+09 0.15653444 0.051334613 99.688350 25.089578 6562.8542 5.6402989e+09 0.15479117 0.050067113 99.728635 25.005908 6564.6311 5.3843371e+09 0.15271023 0.048485573 99.768919 24.922237 6566.4081 5.1404024e+09 0.15067061 0.046952047 99.806195 24.838556 6568.1850 4.9042851e+09 0.14924543 0.045601609 99.843387 24.754875 6569.9619 4.6987422e+09 0.14791631 0.044915031 99.880580 24.671194 6571.7389 4.5058568e+09 0.14610054 0.044301477 99.917768 24.589835 6573.5158 4.3177104e+09 0.14391816 0.043243564 99.954956 24.509263 6575.2927 4.1233344e+09 0.14204458 0.042081002 99.992144 24.428692 6577.0697 3.9306849e+09 0.14005468 0.040110935 100.02933 24.346510 6578.8466 3.7689574e+09 0.13770041 0.037312723 100.06652 24.262840 6580.6235 3.6293872e+09 0.13613273 0.035944510 100.10370 24.179171 6582.4005 3.4887135e+09 0.13476731 0.035184814 100.14089 24.095501 6584.1774 3.3481749e+09 0.13316995 0.034418867 100.17807 24.011830 6585.9543 3.2124899e+09 0.13166800 0.033207793 100.21526 23.928160 6587.7313 3.0730873e+09 0.13078025 0.033320394 100.25245 23.844488 6589.5082 2.9377998e+09 0.12930899 0.032037714 100.28964 23.760807 6591.2852 2.7945661e+09 0.12747358 0.028880145 100.32683 23.677126 6593.0621 2.6594367e+09 0.12607732 0.027044494 100.36403 23.593444 6594.8390 2.5543860e+09 0.12426049 0.025711938 100.40121 23.509772 6596.6160 2.4572755e+09 0.12211325 0.025724473 100.43840 23.426102 6598.3929 2.3780008e+09 0.12059043 0.025219582 100.47558 23.342432 6600.1698 2.2987920e+09 0.12025483 0.025339022 100.51277 23.260659 6601.9468 2.2187065e+09 0.11977838 0.027491565 100.54996 23.180088 6603.7237 2.1419930e+09 0.11848961 0.026234842 100.58715 23.099516 6605.5006 2.0675013e+09 0.11813334 0.027085041 100.62433 23.017751 6607.2776 1.9972757e+09 0.11671720 0.025158887 100.66152 22.934081 6609.0545 1.9297563e+09 0.11398366 0.023722124 100.69871 22.850411 6610.8314 1.8685925e+09 0.11139587 0.024797408 100.73541 22.766739 6612.6084 1.8089784e+09 0.11012468 0.023866191 100.76950 22.683058 6614.3853 1.7568640e+09 0.10892753 0.023675023 100.80359 22.599377 6616.1623 1.7022004e+09 0.10745769 0.023307765 100.83768 22.515695 6617.9392 1.6475659e+09 0.10699870 0.023750635 100.87899 22.425525 6619.7161 1.5815247e+09 0.10662378 0.024698703 100.92082 22.334881 6621.4931 1.5108604e+09 0.10603935 0.024926019 100.96217 22.244680 6623.2700 1.4429303e+09 0.10502718 0.024591855 100.99625 22.161010 6625.0469 1.3824730e+09 0.10424790 0.025453608 101.03034 22.077339 6626.8239 1.3405040e+09 0.10260694 0.025541220 101.06443 21.993669 6628.6008 1.2973670e+09 0.10180290 0.025947027 101.10111 21.909999 6630.3777 1.2524548e+09 0.10070064 0.025929233 101.13830 21.826328 6632.1547 1.2049561e+09 0.099476451 0.026050892 101.17549 21.742658 6633.9316 1.1598195e+09 0.098335701 0.026314902 101.21078 21.660878 6635.7085 1.1169751e+09 0.097246124 0.026506045 101.24487 21.580307 6637.4855 1.0810045e+09 0.096279524 0.025923638 101.27896 21.499736 6639.2624 1.0474725e+09 0.095524161 0.025534281 101.31305 21.417975 6641.0394 1.0131682e+09 0.096026014 0.025148434 101.34714 21.334293 6642.8163 9.8701856e+08 0.095569030 0.025185100 101.38124 21.250611 6644.5932 9.5649944e+08 0.094560900 0.025407721 101.41533 21.167415 6646.3702 9.2359469e+08 0.093519644 0.026111753 101.44941 21.086844 6648.1471 8.9593269e+08 0.092540030 0.027062750 101.48350 21.006273 6649.9240 8.6784129e+08 0.091761165 0.026359958 101.51758 20.925702 6651.7010 8.4148377e+08 0.091049336 0.027021354 101.55887 20.835770 6653.4779 8.1233042e+08 0.090453854 0.027769661 101.60071 20.745126 6655.2548 7.7453887e+08 0.089284025 0.027715515 101.64207 20.654907 6657.0318 7.4147717e+08 0.087754697 0.028937966 101.67616 20.571236 6658.8087 7.1483240e+08 0.086559988 0.031495338 101.71025 20.487566 6660.5856 6.9240290e+08 0.085590040 0.032158319 101.74434 20.403896 6662.3626 6.7422098e+08 0.084487441 0.032840843 101.77843 20.322801 6664.1395 6.5507169e+08 0.083393000 0.031695611 101.81252 20.242218 6665.9164 6.3781172e+08 0.083488284 0.027045495 101.84662 20.161636 6667.6934 6.1564188e+08 0.082960891 0.027358150 101.88118 20.074942 6669.4703 5.9021577e+08 0.082205813 0.027872650 101.91604 19.984299 6671.2473 5.6740778e+08 0.082234827 0.026868872 101.95090 19.893655 6673.0242 5.4688505e+08 0.081929830 0.027495398 101.98519 19.808165 6674.8011 5.3290158e+08 0.080592473 0.029630595 102.01928 19.724495 6676.5781 5.2043990e+08 0.078554808 0.032086282 102.05337 19.640825 6678.3550 5.0436999e+08 0.077860912 0.030699175 102.08746 19.558742 6680.1319 4.8992318e+08 0.078144771 0.029469906 102.12154 19.478170 6681.9089 4.7646557e+08 0.078606565 0.030354629 102.15563 19.397599 6683.6858 4.6472594e+08 0.078700318 0.032193637 102.19093 19.314156 6685.4627 4.5381064e+08 0.078241696 0.033193606 102.22928 19.223511 6687.2397 4.3747117e+08 0.076483611 0.034209230 102.26763 19.132866 6689.0166 4.2092243e+08 0.073967874 0.034001071 102.30421 19.046415 6690.7935 4.0364915e+08 0.073199934 0.033024922 102.33830 18.965833 6692.5705 3.9047704e+08 0.072329548 0.032102861 102.37239 18.885251 6694.3474 3.8249604e+08 0.071431592 0.030774101 102.40663 18.802092 6696.1244 3.6954154e+08 0.071254106 0.029727452 102.44150 18.707961 6697.9013 3.5489360e+08 0.070625865 0.030205325 102.47636 18.613831 6699.6782 3.4071183e+08 0.069367461 0.030964624 102.51097 18.524065 6701.4552 3.2819188e+08 0.067859371 0.032077297 102.54506 18.443494 6703.2321 3.2017041e+08 0.067831988 0.034256015 102.57915 18.362924 6705.0090 3.1379543e+08 0.067884090 0.036684664 102.61331 18.281397 6706.7860 3.0072161e+08 0.067555451 0.039814320 102.64817 18.190753 6708.5629 2.8959047e+08 0.067135610 0.040656560 102.68303 18.100108 6710.3398 2.8085490e+08 0.065906017 0.040563014 102.71772 18.011746 6712.1168 2.7408329e+08 0.064002861 0.042046770 102.75181 17.931175 6713.8937 2.7216831e+08 0.062011098 0.046918981 102.78590 17.850603 6715.6706 2.6829667e+08 0.060439891 0.048064506 102.81999 17.769962 6717.4476 2.5962678e+08 0.058578165 0.049846583 102.85485 17.679391 6719.2245 2.4920144e+08 0.056678533 0.051156531 102.88971 17.588747 6721.0015 2.3761099e+08 0.057015830 0.050304336 102.92407 17.499423 6722.7784 2.2814354e+08 0.056082671 0.049642914 102.95506 17.418841 6724.5553 2.2283618e+08 0.052895792 0.045289353 102.98605 17.338259 6726.3323 2.1746565e+08 0.050297297 0.040954364 103.01704 17.257677 6728.1092 2.1069354e+08 0.049640836 0.039782864 103.05469 17.167992 6729.8861 2.0078166e+08 0.048343805 0.040454799 103.09304 17.077348 6731.6631 1.9086311e+08 0.046736498 0.043069648 103.13127 16.986704 6733.4400 1.8402666e+08 0.045679092 0.046313203 103.16613 16.896059 6735.2169 1.7829054e+08 0.046045769 0.049523727 103.20100 16.805414 6736.9939 1.7485487e+08 0.047234191 0.054112400 103.23521 16.716462 6738.7708 1.6918408e+08 0.047711469 0.061564745 103.26620 16.635891 6740.5477 1.6392658e+08 0.046833722 0.064986088 103.29719 16.555319 6742.3247 1.5684825e+08 0.044365133 0.069401893 103.32818 16.474748 6744.1016 1.4873784e+08 0.040217916 0.077872008 103.36281 16.387979 6745.8786 1.4448783e+08 0.039209988 0.078936222 103.39767 16.300821 6747.6555 1.4086679e+08 0.034804613 0.067135502 103.43253 16.213410 6749.4324 1.4057453e+08 0.033539641 0.072159536 103.46740 16.122766 6751.2094 1.3467728e+08 0.031093471 0.073800188 103.50226 16.032122 6752.9863 1.2959975e+08 0.028684092 0.072993151 103.53712 15.941478 6754.7632 1.2330961e+08 0.027011820 0.074986104 103.57199 15.850833 6756.5402 1.1716513e+08 0.024509501 0.075556830 103.60685 15.760189 6758.3171 1.1457115e+08 0.024520046 0.074375871 103.64041 15.672925 6760.0940 1.1023151e+08 0.024779692 0.076240592 103.67141 15.592343 6761.8710 1.0940302e+08 0.027739092 0.078040184 103.70240 15.511761 6763.6479 1.0733785e+08 0.030414741 0.078410976 103.73382 15.430459 6765.4248 1.0237207e+08 0.031798501 0.079608749 103.76868 15.343301 6767.2018 98017504. 0.030632366 0.081749827 103.80354 15.256144 6768.9787 93877380. 0.026081775 0.084377664 103.83841 15.168145 6770.7556 87791373. 0.022160446 0.088712480 103.87327 15.077501 6772.5326 83998317. 0.018163304 0.093022330 103.90813 14.986858 6774.3095 78084596. 0.013667101 0.097332180 103.94299 14.896214 6776.0865 73851390. 0.0086579153 0.10164203 103.97786 14.805570 6777.8634 68072835. 0.0021910466 0.10595188 104.01272 14.714925 6779.6403 63119179. -0.0086069153 0.11026173 104.04758 14.626039 6781.4173 60579367. -0.052284253 0.11457158 104.08245 14.538881 6783.1942 55215368. -0.025850738 0.11888143 104.11731 14.451723 6784.9711 53637641. 0.048893559 0.12319128 104.14995 14.362347