# # 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 = 42.807494 km # Date (UTC) = 2013-12-27T10:22:12.677 # Date (julian) = 2456653.93209117 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.1950 5.5891505e+10 0.054552247 0.033246655 -37.062627 48.113477 6504.9677 5.2258051e+10 0.061720440 0.033781215 -37.139916 48.039281 6506.7405 4.8597695e+10 0.069083369 0.034315774 -37.224356 47.955644 6508.5132 4.5149211e+10 0.076638167 0.034850334 -37.311308 47.868693 6510.2859 4.1743201e+10 0.084359060 0.035384894 -37.398259 47.781742 6512.0586 3.8780028e+10 0.092428938 0.035919453 -37.474187 47.705813 6513.8313 3.6361913e+10 0.10096206 0.036454013 -37.548394 47.631606 6515.6041 3.4317319e+10 0.10993130 0.036988572 -37.622602 47.557399 6517.3768 3.2479577e+10 0.11925309 0.037523132 -37.696802 47.481248 6519.1495 3.0828752e+10 0.12893748 0.038057691 -37.770999 47.403959 6520.9222 2.9360676e+10 0.13898181 0.038592251 -37.845195 47.326670 6522.6949 2.7940639e+10 0.14737315 0.039099231 -37.919392 47.249381 6524.4677 2.6539118e+10 0.15309538 0.039593102 -37.993590 47.172093 6526.2404 2.5100970e+10 0.15718774 0.039920108 -38.067788 47.094804 6528.0131 2.3692637e+10 0.16231455 0.041452885 -38.141985 47.017516 6529.7858 2.2357868e+10 0.16657359 0.043487548 -38.216181 46.940227 6531.5586 2.1200990e+10 0.16950658 0.046041663 -38.290378 46.862938 6533.3313 2.0048070e+10 0.17232462 0.047660370 -38.364575 46.785649 6535.1040 1.8843815e+10 0.17391386 0.048179182 -38.444157 46.702617 6536.8767 1.7569243e+10 0.17390703 0.048574925 -38.524163 46.619133 6538.6494 1.6265402e+10 0.17327495 0.049472925 -38.603706 46.535971 6540.4222 1.5172321e+10 0.17263433 0.051053543 -38.674813 46.458682 6542.1949 1.4253792e+10 0.17082630 0.051076227 -38.745920 46.381393 6543.9676 1.3429321e+10 0.16898201 0.051635846 -38.817026 46.304104 6545.7403 1.2668421e+10 0.16761405 0.052462200 -38.888132 46.226816 6547.5131 1.1966496e+10 0.16686852 0.053482468 -38.959237 46.149527 6549.2858 1.1303720e+10 0.16537157 0.054257505 -39.030343 46.072239 6551.0585 1.0696626e+10 0.16411194 0.055256283 -39.099646 45.996752 6552.8312 1.0115221e+10 0.16348610 0.055377550 -39.167659 45.922554 6554.6039 9.5620515e+09 0.16210306 0.054845054 -39.235672 45.848356 6556.3767 9.0341803e+09 0.16042209 0.053957750 -39.307858 45.769717 6558.1494 8.4867943e+09 0.15911875 0.053112013 -39.387853 45.682766 6559.9221 7.9346251e+09 0.15755230 0.052283102 -39.467848 45.595815 6561.6948 7.4017061e+09 0.15541456 0.051030287 -39.542179 45.513430 6563.4675 6.9457500e+09 0.15340597 0.049387523 -39.610203 45.436131 6565.2403 6.5577554e+09 0.15186918 0.048045569 -39.678227 45.358832 6567.0130 6.2144239e+09 0.15025078 0.046606204 -39.745509 45.281535 6568.7857 5.8924641e+09 0.14841707 0.045049406 -39.810431 45.204247 6570.5584 5.5740173e+09 0.14719633 0.044686187 -39.875353 45.126958 6572.3312 5.2822509e+09 0.14553410 0.044040512 -39.940298 45.049670 6574.1039 5.0235766e+09 0.14312381 0.042805114 -40.008303 44.972381 6575.8766 4.7978186e+09 0.14115444 0.041495204 -40.076318 44.895092 6577.6493 4.5975445e+09 0.13934312 0.039200447 -40.144332 44.817803 6579.4220 4.4210828e+09 0.13722550 0.036838482 -40.209967 44.742894 6581.1948 4.2541049e+09 0.13536881 0.035537632 -40.274889 44.668698 6582.9675 4.0921275e+09 0.13403880 0.035030515 -40.339811 44.594502 6584.7402 3.9180037e+09 0.13243945 0.034112292 -40.409082 44.513474 6586.5129 3.7197988e+09 0.13079133 0.033164666 -40.482133 44.426510 6588.2857 3.5125199e+09 0.12963088 0.033284537 -40.555184 44.339546 6590.0584 3.3084193e+09 0.12809953 0.030953486 -40.622868 44.258970 6591.8311 3.1384907e+09 0.12599682 0.028264117 -40.687790 44.181681 6593.6038 2.9916942e+09 0.12404824 0.026540855 -40.752712 44.104393 6595.3765 2.8650345e+09 0.12178869 0.025662619 -40.817635 44.027104 6597.1493 2.7458388e+09 0.11958397 0.025675627 -40.882557 43.949815 6598.9220 2.6111384e+09 0.11776340 0.024966979 -40.947479 43.872527 6600.6947 2.4902433e+09 0.11752948 0.026418056 -41.011811 43.795238 6602.4674 2.3719926e+09 0.11655515 0.027117752 -41.073642 43.717949 6604.2401 2.2780655e+09 0.11490597 0.026213867 -41.135473 43.640661 6606.0129 2.1960060e+09 0.11404676 0.027480840 -41.197304 43.563372 6607.7856 2.0981800e+09 0.11176981 0.024155751 -41.266528 43.480168 6609.5583 1.9908411e+09 0.10877599 0.023871776 -41.336090 43.396694 6611.3310 1.8801049e+09 0.10596326 0.024747354 -41.405024 43.313722 6613.1038 1.7811720e+09 0.10477408 0.023611658 -41.466862 43.236423 6614.8765 1.7041692e+09 0.10343097 0.023336634 -41.528700 43.159124 6616.6492 1.6366292e+09 0.10201821 0.023384191 -41.590538 43.081825 6618.4219 1.5755363e+09 0.10152931 0.024089396 -41.652370 43.004535 6620.1946 1.5207651e+09 0.10099585 0.024829921 -41.714202 42.927246 6621.9674 1.4561796e+09 0.10000251 0.024768810 -41.776033 42.849958 6623.7401 1.3959647e+09 0.098451634 0.024766016 -41.840468 42.766752 6625.5128 1.3281686e+09 0.097624352 0.026009537 -41.906552 42.679801 6627.2855 1.2601989e+09 0.095946605 0.025427106 -41.972636 42.592849 6629.0583 1.1985668e+09 0.095046868 0.026098573 -42.033305 42.513021 6630.8310 1.1416418e+09 0.093653227 0.025930349 -42.092044 42.435733 6632.6037 1.0962111e+09 0.092412581 0.026104733 -42.150783 42.358444 6634.3764 1.0534937e+09 0.091019500 0.026354300 -42.209525 42.282705 6636.1491 1.0179934e+09 0.089524246 0.026491837 -42.268272 42.208499 6637.9219 9.8798086e+08 0.088446906 0.025709913 -42.327019 42.134292 6639.6946 9.5359615e+08 0.087857740 0.025379816 -42.387735 42.056665 6641.4673 9.1704509e+08 0.087875608 0.025149887 -42.453819 41.969714 6643.2400 8.6919820e+08 0.087198122 0.025228859 -42.519903 41.882762 6645.0127 8.2627584e+08 0.086217539 0.025457656 -42.583099 41.799610 6646.7855 7.8993548e+08 0.084920498 0.026326731 -42.641838 41.722322 6648.5582 7.6164287e+08 0.083655832 0.027337938 -42.700577 41.645033 6650.3309 7.3412964e+08 0.082900852 0.026330992 -42.760480 41.566212 6652.1036 7.0554975e+08 0.082155615 0.027279035 -42.826562 41.479261 6653.8764 6.7805979e+08 0.081417330 0.027973097 -42.892645 41.392310 6655.6491 6.4592204e+08 0.080065124 0.027878416 -42.955770 41.308097 6657.4218 6.1710771e+08 0.078803880 0.029390384 -43.011418 41.230809 6659.1945 5.8971755e+08 0.077591341 0.031794021 -43.067066 41.153520 6660.9672 5.6302158e+08 0.076611146 0.032505174 -43.122714 41.076382 6662.7400 5.4190291e+08 0.075687916 0.032629108 -43.178369 41.002174 6664.5127 5.2524390e+08 0.074849135 0.030330194 -43.234025 40.927966 6666.2854 5.0767620e+08 0.074778604 0.026964210 -43.289681 40.853758 6668.0581 4.9156958e+08 0.074119841 0.027522215 -43.350997 40.769170 6669.8309 4.7101470e+08 0.073580498 0.027502361 -43.413602 40.682219 6671.6036 4.4724874e+08 0.073474742 0.026873950 -43.476207 40.595268 6673.3763 4.2639285e+08 0.073044862 0.028021993 -43.532276 40.517394 6675.1490 4.0971568e+08 0.071614725 0.030083777 -43.587924 40.440105 6676.9217 3.9641685e+08 0.069716389 0.032307778 -43.643572 40.362817 6678.6945 3.8389253e+08 0.069127328 0.030472130 -43.701672 40.278718 6680.4672 3.6904263e+08 0.069757532 0.029542300 -43.760800 40.191767 6682.2399 3.5263731e+08 0.070280719 0.030607838 -43.819927 40.104816 6684.0126 3.3692612e+08 0.070358205 0.032654732 -43.876167 40.025881 6685.7853 3.2350447e+08 0.069899115 0.033534357 -43.931814 39.948592 6687.5581 3.1389528e+08 0.067914781 0.034031660 -43.987461 39.871303 6689.3308 3.0404131e+08 0.065656032 0.033718261 -44.045179 39.790334 6691.1035 2.9265079e+08 0.064811448 0.032976841 -44.104306 39.706860 6692.8762 2.7868459e+08 0.064133466 0.031747812 -44.163434 39.623387 6694.6490 2.6377058e+08 0.063557206 0.030351482 -44.222566 39.537400 6696.4217 2.4942702e+08 0.063392725 0.029850984 -44.281701 39.450436 6698.1944 2.3681108e+08 0.062764601 0.030484651 -44.340836 39.363472 6699.9671 2.2770437e+08 0.061548371 0.030698057 -44.394412 39.284685 6701.7398 2.1807135e+08 0.060126925 0.032495004 -44.446969 39.207396 6703.5126 2.1015050e+08 0.060385197 0.034957832 -44.499526 39.130107 6705.2853 2.0179007e+08 0.060554304 0.037175786 -44.556093 39.046921 6707.0580 1.9572559e+08 0.060234301 0.040178517 -44.615219 38.959969 6708.8307 1.8740728e+08 0.059824061 0.040948213 -44.674345 38.873018 6710.6035 1.7927457e+08 0.058585744 0.040614613 -44.730915 38.788625 6712.3762 1.6439930e+08 0.056987834 0.042528385 -44.786564 38.705152 6714.1489 1.5194654e+08 0.055290350 0.047314602 -44.842213 38.621679 6715.9216 1.4486951e+08 0.053959297 0.048321190 -44.895202 38.543525 6717.6943 1.3786896e+08 0.052280527 0.049831320 -44.947759 38.466237 6719.4671 1.3366155e+08 0.050797276 0.050926099 -45.000316 38.388948 6721.2398 1.2726630e+08 0.051188773 0.050376146 -45.054807 38.305616 6723.0125 1.2531921e+08 0.050259835 0.049375917 -45.110455 38.218665 6724.7852 1.2269678e+08 0.046798213 0.043369535 -45.166104 38.131714 6726.5579 1.2150920e+08 0.044913882 0.040956400 -45.221759 38.044753 6728.3307 1.1412382e+08 0.044622128 0.040096764 -45.277416 37.957789 6730.1034 1.0711752e+08 0.043452056 0.040520662 -45.333073 37.870825 6731.8761 1.0150352e+08 0.042120976 0.043493648 -45.383308 37.795038 6733.6488 98650808. 0.041373779 0.047447010 -45.432773 37.720840 6735.4216 96162999. 0.042363975 0.049740944 -45.482238 37.646642 6737.1943 93821176. 0.043773227 0.054754437 -45.535666 37.564270 6738.9670 90702233. 0.044467842 0.062644861 -45.591315 37.477319 6740.7397 86413724. 0.043726293 0.065314046 -45.646964 37.390368 6742.5124 86767548. 0.041289967 0.069859412 -45.699949 37.303417 6744.2852 82145594. 0.037723970 0.078013979 -45.752121 37.216466 6746.0579 79870887. 0.036848473 0.078314299 -45.804292 37.129515 6747.8306 79042163. 0.033052068 0.067075215 -45.859560 37.045662 6749.6033 75238461. 0.031569207 0.072112741 -45.915208 36.962190 6751.3761 72509869. 0.029439508 0.073870667 -45.970804 36.878664 6753.1488 71090160. 0.027573050 0.073458743 -46.022973 36.791713 6754.9215 66287424. 0.026098765 0.074731594 -46.075143 36.704762 6756.6942 67262602. 0.023709150 0.075953228 -46.127801 36.617810 6758.4669 66639548. 0.023972546 0.074692723 -46.183450 36.530859 6760.2397 59661729. 0.023457713 0.076518290 -46.239099 36.443907 6762.0124 54782755. 0.021311748 0.078030873 -46.293826 36.357877 6763.7851 49352275. 0.028172296 0.078828810 -46.345997 36.274404 6765.5578 50123926. 0.040541568 0.079633026 -46.398169 36.190930