# # 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 = 42.955808 km # Date (UTC) = 2016-01-15T09:29:21.377 # Date (julian) = 2457402.89538631 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6482.7691 1.0282511e+11 0.026056928 0.027087292 -19.470050 53.151627 6484.6660 8.2277045e+10 0.033876269 0.027659268 -19.597058 53.045296 6486.5628 8.9406353e+10 0.033736551 0.028231245 -19.720402 52.938965 6488.4596 8.9823890e+10 0.035820414 0.028803221 -19.843746 52.832635 6490.3564 7.9790543e+10 0.040059061 0.029375198 -19.954952 52.736768 6492.2532 7.1235961e+10 0.043904125 0.029947174 -20.062875 52.643730 6494.1500 6.5522366e+10 0.046979449 0.030519151 -20.171915 52.548937 6496.0468 6.5390598e+10 0.049090139 0.031091127 -20.291006 52.438352 6497.9436 6.4222127e+10 0.051389102 0.031663104 -20.410097 52.327767 6499.8404 6.1428431e+10 0.053540600 0.032235080 -20.518037 52.230324 6501.7372 5.7716266e+10 0.055304835 0.032807057 -20.622238 52.137286 6503.6340 5.4517383e+10 0.056958816 0.033379033 -20.727360 52.043427 6505.5308 5.0915935e+10 0.059028821 0.033951010 -20.846451 51.937096 6507.4276 4.6970584e+10 0.062358943 0.034522986 -20.965542 51.830765 6509.3244 4.3715088e+10 0.068308286 0.035094963 -21.071407 51.731237 6511.2212 4.0797240e+10 0.077695704 0.035666939 -21.171888 51.634479 6513.1180 3.8569778e+10 0.091288483 0.036238916 -21.272368 51.537809 6515.0148 3.6605293e+10 0.10882697 0.036810892 -21.372849 51.444771 6516.9116 3.4374803e+10 0.12697028 0.037382869 -21.473330 51.351734 6518.8084 3.2162772e+10 0.14314363 0.037954845 -21.577210 51.254223 6520.7052 2.9669262e+10 0.15593850 0.038526822 -21.687793 51.147893 6522.6021 2.7192194e+10 0.16413876 0.039074905 -21.798376 51.041562 6524.4989 2.5033893e+10 0.16854029 0.039604181 -21.899005 50.944662 6526.3957 2.3353651e+10 0.17142260 0.040082892 -21.999485 50.847902 6528.2925 2.1919524e+10 0.17457748 0.041674498 -22.101710 50.748288 6530.1893 2.0318381e+10 0.17723489 0.044093673 -22.208041 50.641957 6532.0861 1.8627656e+10 0.17892102 0.046756099 -22.314372 50.535626 6533.9829 1.6906735e+10 0.17870614 0.047937282 -22.411638 50.438361 6535.8797 1.5537724e+10 0.17767270 0.047842693 -22.508397 50.341603 6537.7765 1.4324566e+10 0.17827724 0.049051307 -22.604188 50.245812 6539.6733 1.3351995e+10 0.17783282 0.050458636 -22.697226 50.152775 6541.5701 1.2560164e+10 0.17607936 0.051141650 -22.790263 50.059737 6543.4669 1.1780215e+10 0.17455244 0.051504435 -22.890916 49.956647 6545.3637 1.1039678e+10 0.17326704 0.052458825 -22.997247 49.846062 6547.2605 1.0205059e+10 0.17189213 0.053386434 -23.099808 49.739365 6549.1573 9.4982808e+09 0.16983470 0.054126603 -23.189137 49.646314 6551.0541 8.9248615e+09 0.16802763 0.055254750 -23.278466 49.553263 6552.9509 8.4697338e+09 0.16645572 0.055347418 -23.367788 49.458228 6554.8477 8.0740827e+09 0.16399612 0.054850170 -23.457104 49.361469 6556.7445 7.6860889e+09 0.16079245 0.053903664 -23.546420 49.264711 6558.6413 7.2653371e+09 0.15739666 0.052692799 -23.646557 49.156230 6560.5382 6.8099157e+09 0.15419877 0.051789097 -23.748634 49.045647 6562.4350 6.3358220e+09 0.15144981 0.050466027 -23.844372 48.943780 6564.3318 5.9059146e+09 0.14870941 0.048621244 -23.933689 48.850743 6566.2286 5.5484589e+09 0.14649540 0.047053585 -24.023006 48.757705 6568.1254 5.2415417e+09 0.14491401 0.045656417 -24.109308 48.661654 6570.0222 4.9949821e+09 0.14332490 0.044908323 -24.194902 48.564894 6571.9190 4.7455034e+09 0.14138814 0.044252284 -24.281996 48.466439 6573.8158 4.4773679e+09 0.13898764 0.043002834 -24.379820 48.355856 6575.7126 4.1853879e+09 0.13699593 0.041659756 -24.477644 48.245273 6577.6094 3.9101983e+09 0.13484521 0.039263161 -24.566033 48.148226 6579.5062 3.6789463e+09 0.13221108 0.036792217 -24.651628 48.055188 6581.4030 3.4783210e+09 0.12974726 0.035474574 -24.736908 47.961837 6583.2998 3.3061143e+09 0.12756465 0.034869916 -24.818781 47.865077 6585.1966 3.1441702e+09 0.12526963 0.033813584 -24.900655 47.768317 6587.0934 2.9851902e+09 0.12292310 0.033179068 -24.987175 47.666066 6588.9902 2.8123085e+09 0.12054051 0.033049242 -25.080746 47.555482 6590.8870 2.6349796e+09 0.11782333 0.029412053 -25.173778 47.445708 6592.7838 2.4663954e+09 0.11537808 0.027312184 -25.255650 47.352671 6594.6806 2.3226354e+09 0.11254636 0.025798885 -25.337523 47.259634 6596.5774 2.1994340e+09 0.10932439 0.025724648 -25.419396 47.165260 6598.4742 2.0812269e+09 0.10679030 0.025180742 -25.501269 47.068500 6600.3711 1.9748481e+09 0.10562137 0.025752694 -25.583143 46.971740 6602.2679 1.8754426e+09 0.10438552 0.027288053 -25.662515 46.874981 6604.1647 1.7907704e+09 0.10274010 0.026169049 -25.740666 46.778223 6606.0615 1.7171307e+09 0.10231676 0.027393506 -25.818823 46.681457 6607.9583 1.6285795e+09 0.10045994 0.023814765 -25.907966 46.571089 6609.8551 1.5336730e+09 0.097985090 0.023959930 -25.997285 46.460504 6611.7519 1.4303812e+09 0.095941906 0.024478976 -26.079526 46.361039 6613.6487 1.3426559e+09 0.095276768 0.023811596 -26.157677 46.268002 6615.5455 1.2779551e+09 0.094071014 0.023268315 -26.235828 46.174964 6617.4423 1.2203925e+09 0.093185231 0.023585892 -26.310467 46.078391 6619.3391 1.1657963e+09 0.092504341 0.024607734 -26.384909 45.981619 6621.2359 1.1062673e+09 0.091678433 0.025011254 -26.460314 45.884850 6623.1327 1.0545353e+09 0.090257708 0.024540994 -26.538466 45.788091 6625.0295 1.0045783e+09 0.088969560 0.025432829 -26.616617 45.691333 6626.9263 9.5632496e+08 0.086948196 0.025410681 -26.698728 45.586654 6628.8231 8.9996447e+08 0.085956681 0.026037293 -26.783793 45.476069 6630.7199 8.4422913e+08 0.084494415 0.025930076 -26.866500 45.368549 6632.6167 7.9557372e+08 0.083162376 0.026106297 -26.940930 45.271791 6634.5135 7.5692170e+08 0.081682522 0.026364303 -27.015359 45.175033 6636.4103 7.2707224e+08 0.080087659 0.026390398 -27.087799 45.080264 6638.3072 6.9521329e+08 0.078979960 0.025658260 -27.158508 44.987227 6640.2040 6.6592579e+08 0.078827912 0.025245697 -27.229217 44.894189 6642.1008 6.2954609e+08 0.078683082 0.025155819 -27.312092 44.786280 6643.9976 5.9557960e+08 0.077641491 0.025343239 -27.397158 44.675695 6645.8944 5.6639141e+08 0.076873274 0.025870665 -27.475097 44.571972 6647.7912 5.3957885e+08 0.076206589 0.026854338 -27.545805 44.475214 6649.6880 5.1674620e+08 0.075638685 0.026685338 -27.616513 44.378456 6651.5848 4.9698730e+08 0.075390806 0.026932320 -27.687221 44.281697 6653.4816 4.7733115e+08 0.075141585 0.027771545 -27.757929 44.184937 6655.3784 4.6214266e+08 0.074013960 0.027766571 -27.828638 44.088178 6657.2752 4.4246062e+08 0.072634004 0.029220337 -27.899347 43.991420 6659.1720 4.2443721e+08 0.071415305 0.031798718 -27.970055 43.894661 6661.0688 4.0904705e+08 0.070392757 0.032569997 -28.043309 43.791888 6662.9656 3.9053118e+08 0.069560409 0.032502504 -28.119868 43.681304 6664.8624 3.7637726e+08 0.069039080 0.029050523 -28.195623 43.572193 6666.7592 3.5593150e+08 0.068934495 0.027056540 -28.262610 43.479156 6668.6560 3.4204638e+08 0.068052030 0.028051316 -28.329597 43.386118 6670.5528 3.2611249e+08 0.068118254 0.027072512 -28.398060 43.291604 6672.4496 3.1255754e+08 0.067947957 0.027140220 -28.468768 43.194844 6674.3464 3.0160188e+08 0.067061748 0.029247041 -28.539476 43.098085 6676.2433 2.8754366e+08 0.065142535 0.031870498 -28.614336 42.991514 6678.1401 2.7663851e+08 0.064451902 0.030842938 -28.690894 42.880931 6680.0369 2.6243539e+08 0.064817824 0.029449376 -28.762686 42.775305 6681.9337 2.4728292e+08 0.065591013 0.030373652 -28.825951 42.678545 6683.8305 2.3751271e+08 0.065906630 0.032405645 -28.889217 42.581785 6685.7273 2.2828593e+08 0.065650033 0.033473020 -28.961409 42.475743 6687.6241 2.1325937e+08 0.063952533 0.033994844 -29.037967 42.365159 6689.5209 1.9985555e+08 0.062156899 0.033547143 -29.110270 42.260192 6691.4177 1.8541163e+08 0.061698438 0.032902715 -29.173545 42.167140 6693.3145 1.7801710e+08 0.061260952 0.031496197 -29.236820 42.074089 6695.2113 1.7474487e+08 0.061116703 0.029820660 -29.300089 41.978688 6697.1081 1.6665304e+08 0.060911171 0.030104946 -29.363354 41.881929 6699.0049 1.5837948e+08 0.060062219 0.031585901 -29.426620 41.785169 6700.9017 1.4936693e+08 0.058813656 0.031336546 -29.498442 41.675324 6702.7985 1.4280017e+08 0.058686971 0.033514352 -29.570747 41.564741 6704.6953 1.3819919e+08 0.059102691 0.036518995 -29.637669 41.462389 6706.5921 1.3340056e+08 0.059117044 0.039476961 -29.700935 41.365629 6708.4889 1.3002400e+08 0.058929719 0.040576011 -29.764200 41.268870 6710.3857 1.2438859e+08 0.057963655 0.040571999 -29.835677 41.159553 6712.2825 1.2012888e+08 0.056319250 0.042354551 -29.907982 41.048969 6714.1794 1.1394620e+08 0.054696014 0.047316892 -29.973177 40.948162 6716.0762 1.0702780e+08 0.053497419 0.048513529 -30.032721 40.855125 6717.9730 1.0561881e+08 0.051800830 0.049814086 -30.092265 40.762087 6719.8698 1.0279586e+08 0.050812481 0.050543499 -30.162911 40.653784 6721.7666 1.0177744e+08 0.051069496 0.050534870 -30.235216 40.543201 6723.6634 99021741. 0.049641059 0.049738919 -30.300899 40.439791 6725.5602 91972526. 0.046157985 0.041226103 -30.360443 40.343031 6727.4570 88258501. 0.045306681 0.040351552 -30.419987 40.246272 6729.3538 86431848. 0.044886782 0.040809618 -30.486608 40.138013 6731.2506 81225681. 0.043649696 0.042248754 -30.554659 40.027430 6733.1474 77193129. 0.043001296 0.044724580 -30.618621 39.925280 6735.0442 74874022. 0.043485428 0.049340359 -30.678166 39.832243 6736.9410 72107146. 0.045319678 0.053912547 -30.737710 39.739205 6738.8378 69608574. 0.046395354 0.061933644 -30.800630 39.632242 6740.7346 65545757. 0.046109127 0.065305332 -30.864428 39.521657 6742.6314 60935910. 0.044116036 0.070149335 -30.926344 39.417190 6744.5282 59133891. 0.041351690 0.078201984 -30.985888 39.320431 6746.4250 58240812. 0.040186547 0.074045784 -31.045432 39.223673 6748.3218 54206868. 0.040588645 0.068710105 -31.108189 39.116471 6750.2186 49553158. 0.052735560 0.072377475 -31.171987 39.005886 6752.1154 49115116. 0.038536374 0.074000881 -31.235786 38.897021 6754.0123 51561833. 0.013383423 0.076193766 -31.299585 38.790691