# # 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 = 49.518592 km # Date (UTC) = 2011-12-09T09:21:34.472 # Date (julian) = 2455904.88998231 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6493.0799 3.2685823e+11 0.031438653 0.030196468 -23.891191 49.126163 6495.1113 2.9519625e+11 0.038266928 0.030809047 -23.985207 49.034793 6497.1428 2.6251155e+11 0.044899618 0.031421625 -24.084849 48.935151 6499.1742 2.2537666e+11 0.051390937 0.032034204 -24.184491 48.835509 6501.2057 1.9155280e+11 0.057623935 0.032646783 -24.278531 48.744106 6503.2371 1.6391871e+11 0.063646943 0.033259362 -24.370643 48.655537 6505.2686 1.4184949e+11 0.069641418 0.033871941 -24.462754 48.566968 6507.3000 1.2422600e+11 0.075857069 0.034484519 -24.561804 48.468197 6509.3315 1.0782602e+11 0.082354138 0.035097098 -24.661446 48.368555 6511.3630 9.3110867e+10 0.089241350 0.035709677 -24.755065 48.273475 6513.3944 8.1339610e+10 0.096864365 0.036322256 -24.840102 48.184894 6515.4259 7.2411626e+10 0.10555001 0.036934835 -24.925140 48.096313 6517.4573 6.5235451e+10 0.11539722 0.037547413 -25.012261 48.009829 6519.4888 5.9340597e+10 0.12649752 0.038159992 -25.100830 47.924803 6521.5202 5.4051131e+10 0.13866953 0.038772571 -25.189399 47.839776 6523.5517 4.9118857e+10 0.14727603 0.039315840 -25.283408 47.743533 6525.5831 4.4367403e+10 0.15476401 0.039715666 -25.379064 47.643891 6527.6146 3.9848409e+10 0.16245976 0.041162650 -25.471058 47.547111 6529.6460 3.6111019e+10 0.16852632 0.043264827 -25.552542 47.458542 6531.6775 3.3171909e+10 0.17261063 0.046214737 -25.634025 47.369973 6533.7089 3.0703107e+10 0.17418606 0.047820855 -25.721684 47.276579 6535.7404 2.8180064e+10 0.17299061 0.047903128 -25.817340 47.176937 6537.7718 2.5641576e+10 0.17283199 0.049049104 -25.912996 47.077295 6539.8033 2.3329674e+10 0.17200147 0.050615966 -25.995527 46.987905 6541.8347 2.1363846e+10 0.16973389 0.051055836 -26.077022 46.899324 6543.8662 1.9762901e+10 0.16776577 0.051609224 -26.158515 46.810744 6545.8976 1.8368218e+10 0.16600986 0.052463609 -26.239998 46.722175 6547.9291 1.7092696e+10 0.16524302 0.053640675 -26.321481 46.633606 6549.9605 1.5909601e+10 0.16434078 0.054945134 -26.404712 46.541917 6551.9920 1.4721649e+10 0.16308204 0.055583951 -26.492398 46.442275 6554.0234 1.3567976e+10 0.16119571 0.054832872 -26.580083 46.342633 6556.0549 1.2548109e+10 0.15965986 0.054005057 -26.662975 46.251549 6558.0863 1.1701864e+10 0.15851866 0.053165738 -26.744458 46.162980 6560.1178 1.0998079e+10 0.15672153 0.052168111 -26.825942 46.074411 6562.1492 1.0305819e+10 0.15453227 0.050737899 -26.913317 45.975321 6564.1807 9.6130862e+09 0.15210288 0.048689710 -27.001002 45.875679 6566.2121 8.9702224e+09 0.15026548 0.047062878 -27.084392 45.779354 6568.2436 8.4325387e+09 0.14885446 0.045547745 -27.162344 45.687231 6570.2750 7.9961355e+09 0.14735293 0.044803577 -27.240295 45.595107 6572.3065 7.5796558e+09 0.14535292 0.044054635 -27.321804 45.498331 6574.3379 7.1395629e+09 0.14280788 0.042692692 -27.405502 45.398689 6576.3694 6.6873661e+09 0.14057507 0.040946211 -27.488568 45.300265 6578.4008 6.2790455e+09 0.13834045 0.038016630 -27.566509 45.211696 6580.4323 5.9282572e+09 0.13649430 0.036121247 -27.644450 45.123126 6582.4638 5.6297071e+09 0.13492008 0.035167595 -27.721374 45.034557 6584.4952 5.3576103e+09 0.13324515 0.034245756 -27.795771 44.945988 6586.5267 5.1105387e+09 0.13156730 0.033164488 -27.870169 44.857419 6588.5581 4.8547326e+09 0.13016333 0.033193550 -27.947037 44.763705 6590.5896 4.5838433e+09 0.12824926 0.029965401 -28.026750 44.664064 6592.6210 4.3135493e+09 0.12637086 0.027470339 -28.106464 44.564422 6594.6525 4.0696994e+09 0.12429756 0.025814355 -28.181107 44.475351 6596.6839 3.8808354e+09 0.12175363 0.025724164 -28.255514 44.386770 6598.7154 3.7098322e+09 0.11981198 0.025065627 -28.330629 44.296714 6600.7468 3.5267425e+09 0.11952539 0.026525184 -28.410343 44.197072 6602.7783 3.3231540e+09 0.11860339 0.026852494 -28.490057 44.097431 6604.8097 3.1269519e+09 0.11759587 0.026552059 -28.566452 44.004702 6606.8412 2.9630859e+09 0.11632028 0.025992413 -28.640849 43.916133 6608.8726 2.8283164e+09 0.11309198 0.023709299 -28.715247 43.827564 6610.9041 2.6992752e+09 0.10983022 0.024866797 -28.793906 43.730118 6612.9355 2.5546911e+09 0.10839178 0.023621766 -28.873620 43.630476 6614.9670 2.4124650e+09 0.10682859 0.023274286 -28.949704 43.534076 6616.9984 2.2887877e+09 0.10491461 0.023439002 -29.017016 43.445507 6619.0299 2.1852676e+09 0.10362810 0.024533123 -29.084329 43.356938 6621.0613 2.0888805e+09 0.10244963 0.025069119 -29.157476 43.263157 6623.0928 1.9829672e+09 0.10095050 0.024526199 -29.237201 43.163500 6625.1242 1.8739532e+09 0.099851634 0.025545848 -29.316926 43.063843 6627.1557 1.7806732e+09 0.098095182 0.025376948 -29.384717 42.971440 6629.1871 1.7131560e+09 0.097134981 0.026075271 -29.452030 42.879328 6631.2186 1.6419240e+09 0.095585621 0.025952970 -29.520510 42.786170 6633.2500 1.5721523e+09 0.094400627 0.026195907 -29.596238 42.686529 6635.2815 1.4907354e+09 0.093133885 0.026442001 -29.671966 42.586887 6637.3129 1.4168422e+09 0.091882472 0.026008144 -29.742394 42.494219 6639.3444 1.3597428e+09 0.091081061 0.025504982 -29.809706 42.405649 6641.3758 1.3014477e+09 0.091470335 0.025149577 -29.877018 42.317080 6643.4073 1.2499010e+09 0.090685491 0.025254115 -29.951123 42.219574 6645.4387 1.1876585e+09 0.089664326 0.025657220 -30.026851 42.119932 6647.4702 1.1303357e+09 0.088498390 0.026685340 -30.099016 42.023588 6649.5016 1.0808960e+09 0.087357624 0.026942192 -30.162794 41.935008 6651.5331 1.0392920e+09 0.086659922 0.026892708 -30.226572 41.846427 6653.5645 1.0044160e+09 0.085827060 0.027813900 -30.296037 41.752583 6655.5960 9.6245810e+08 0.084081117 0.027856485 -30.371765 41.652941 6657.6275 9.2074640e+08 0.082271033 0.029628936 -30.447493 41.553299 6659.6589 8.7673684e+08 0.080615862 0.031697150 -30.519366 41.453658 6661.6904 8.3029392e+08 0.079008592 0.032886562 -30.591107 41.354016 6663.7218 7.9010567e+08 0.077494751 0.032283182 -30.659199 41.259444 6665.7533 7.5631929e+08 0.077224629 0.027312890 -30.722969 41.170875 6667.7847 7.3098251e+08 0.076496334 0.027391695 -30.786739 41.082306 6669.8162 7.0882461e+08 0.075798641 0.027517448 -30.853041 40.986703 6671.8476 6.8266295e+08 0.075692920 0.026877428 -30.920798 40.887061 6673.8791 6.5420707e+08 0.075082596 0.028773922 -30.989057 40.787419 6675.9105 6.2441800e+08 0.073094466 0.031542328 -31.060799 40.687778 6677.9420 5.9292977e+08 0.072203115 0.031019114 -31.132541 40.588136 6679.9734 5.6794731e+08 0.072397041 0.029463382 -31.197176 40.495329 6682.0049 5.4444673e+08 0.073126302 0.030428263 -31.257402 40.406760 6684.0363 5.2352607e+08 0.073330613 0.032655935 -31.317629 40.318191 6686.0678 5.0452971e+08 0.072762010 0.033800515 -31.387015 40.220812 6688.0992 4.8452175e+08 0.070417830 0.033808095 -31.458768 40.121155 6690.1307 4.6817666e+08 0.068629615 0.033100888 -31.529378 40.021502 6692.1621 4.4939935e+08 0.067634107 0.032577061 -31.597135 39.921860 6694.1936 4.3020244e+08 0.066778161 0.030989717 -31.664891 39.822219 6696.2250 4.0780203e+08 0.066663192 0.029769281 -31.729551 39.719481 6698.2565 3.8813171e+08 0.065805225 0.030569867 -31.793321 39.615854 6700.2879 3.7319198e+08 0.064201959 0.030881286 -31.856142 39.516263 6702.3194 3.6089398e+08 0.062901885 0.033131759 -31.916368 39.427694 6704.3508 3.5287839e+08 0.063066699 0.036349832 -31.976594 39.339125 6706.3823 3.4231693e+08 0.062836398 0.039111744 -32.040174 39.245625 6708.4137 3.3028305e+08 0.062341641 0.040494124 -32.107932 39.145983 6710.4452 3.1935812e+08 0.060961908 0.040583635 -32.175690 39.046340 6712.4766 3.0534699e+08 0.059034942 0.042714921 -32.239714 38.946699 6714.5081 2.8999089e+08 0.057179984 0.047341607 -32.303484 38.847057 6716.5395 2.7549673e+08 0.055540288 0.049196058 -32.367255 38.747415 6718.5710 2.6202273e+08 0.053514580 0.050701695 -32.431026 38.647774 6720.6024 2.5358871e+08 0.053377210 0.050349962 -32.494796 38.548132 6722.6339 2.4316664e+08 0.052859676 0.049821541 -32.558575 38.448477 6724.6653 2.3303943e+08 0.049486053 0.044370569 -32.622356 38.348820 6726.6968 2.2455231e+08 0.047156228 0.040957652 -32.686132 38.249170 6728.7283 2.1475644e+08 0.046783515 0.040660271 -32.749902 38.149528 6730.7597 2.0604981e+08 0.045145045 0.041420549 -32.813673 38.049886 6732.7912 1.9470965e+08 0.043906161 0.043885858 -32.877444 37.950244 6734.8226 1.8603138e+08 0.043707593 0.049304106 -32.941215 37.850602 6736.8541 1.7919310e+08 0.045216183 0.053583821 -33.004986 37.750960 6738.8855 1.7368682e+08 0.045846231 0.062196226 -33.068756 37.651318 6740.9170 1.6849356e+08 0.044711395 0.065616832 -33.132527 37.551677 6742.9484 1.6024626e+08 0.041292464 0.070921736 -33.192780 37.452035 6744.9799 1.5458133e+08 0.037874881 0.078551311 -33.252565 37.352393 6747.0113 1.4752539e+08 0.033061724 0.067357266 -33.313840 37.252752 6749.0428 1.4132539e+08 0.032965755 0.072266224 -33.377611 37.153110 6751.0742 1.3556409e+08 0.029863111 0.073743051 -33.441382 37.053468 6753.1057 1.2878867e+08 0.027044365 0.073319254 -33.501705 36.957273 6755.1371 1.2515084e+08 0.025083500 0.074545227 -33.561489 36.861616 6757.1686 1.2332167e+08 0.022640761 0.076228486 -33.621273 36.764541 6759.2000 1.1893321e+08 0.023466168 0.075868223 -33.681059 36.664899 6761.2315 1.1317149e+08 0.024368711 0.077987349 -33.740845 36.565257 6763.2629 1.0500302e+08 0.028823939 0.077238511 -33.800631 36.465615 6765.2944 1.0044911e+08 0.030791690 0.079584933 -33.860416 36.365974 6767.3258 96512837. 0.029677647 0.081610922 -33.920205 36.266327 6769.3573 93589953. 0.025001830 0.085320823 -33.979998 36.166670 6771.3887 93267156. 0.021277993 0.090247985 -34.039791 36.067014 6773.4202 91333410. 0.017482831 0.095175148 -34.102883 35.955563 6775.4516 92525053. 0.013814139 0.10010231 -34.166655 35.841685 6777.4831 89064115. 0.0099028942 0.10502947 -34.227900 35.736832 6779.5145 85669306. 0.0059259422 0.10995664 -34.287685 35.637190 6781.5460 80140914. 0.0016992595 0.11488380 -34.346973 35.537548 6783.5774 75261588. -0.0027035905 0.11981096 -34.402772 35.437906 6785.6089 72492260. -0.0072390629 0.12473813 -34.458572 35.338264 6787.6403 70574080. -0.012189677 0.12966529 -34.522088 35.229852 6789.6718 68051823. -0.018210396 0.13459245 -34.590416 35.115974 6791.7032 64282318. -0.027537293 0.13951961 -34.653474 35.008084 6793.7347 61040752. -0.064100683 0.14444678 -34.709273 34.908442 6795.7661 56823975. -0.041814264 0.14937394 -34.765072 34.808801 6797.7976 54669713. 0.017803557 0.15430110 -34.828139 34.700333