# # 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 = 44.889138 km # Date (UTC) = 2013-12-30T09:27:40.849 # Date (julian) = 2456656.89422279 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.3653 5.5854387e+10 0.051719642 0.032694912 -23.251757 48.196714 6503.8210 5.2492518e+10 0.060563178 0.033435411 -23.358827 48.091174 6506.2766 4.9074720e+10 0.069672474 0.034175911 -23.465891 47.984110 6508.7323 4.5747806e+10 0.079117243 0.034916410 -23.575592 47.872926 6511.1880 4.2417042e+10 0.088926427 0.035656909 -23.691223 47.752476 6513.6436 3.9131738e+10 0.099139073 0.036397408 -23.804865 47.635136 6516.0993 3.6035486e+10 0.10983170 0.037137908 -23.911929 47.528071 6518.5550 3.3461203e+10 0.12123814 0.037878407 -24.018994 47.421007 6521.0106 3.1194037e+10 0.13337017 0.038618906 -24.122228 47.317772 6523.4663 2.9055275e+10 0.14195915 0.039294680 -24.225023 47.214976 6525.9220 2.6816044e+10 0.14700682 0.039676995 -24.332327 47.102251 6528.3776 2.4508323e+10 0.15258660 0.041742046 -24.443140 46.981802 6530.8333 2.2263514e+10 0.15629905 0.044995273 -24.550043 46.867870 6533.2889 2.0248949e+10 0.16049758 0.047642380 -24.652825 46.760806 6535.7446 1.8518993e+10 0.16189133 0.047901288 -24.754956 46.653741 6538.2003 1.7070456e+10 0.16467982 0.049254204 -24.853455 46.546677 6540.6559 1.5730141e+10 0.16618063 0.051163985 -24.951954 46.439612 6543.1116 1.4418071e+10 0.16651849 0.051411184 -25.056577 46.321615 6545.5673 1.3116702e+10 0.16613242 0.052460649 -25.162572 46.201166 6548.0229 1.1876718e+10 0.16538999 0.053674495 -25.263021 46.090628 6550.4786 1.0841411e+10 0.16392944 0.055105196 -25.361533 45.983550 6552.9343 1.0016691e+10 0.16224718 0.055351613 -25.458298 45.876477 6555.3899 9.3433523e+09 0.16011278 0.054525732 -25.552515 45.769413 6557.8456 8.7082806e+09 0.15804944 0.053336087 -25.647573 45.661392 6560.3013 8.0405351e+09 0.15559437 0.052002686 -25.753569 45.540943 6562.7569 7.3878102e+09 0.15313041 0.050159664 -25.859564 45.420494 6565.2126 6.7916429e+09 0.15106221 0.048077001 -25.953829 45.317640 6567.6683 6.3122136e+09 0.14940184 0.046052163 -26.048046 45.214859 6570.1239 5.9280815e+09 0.14818297 0.044866178 -26.142262 45.109248 6572.5796 5.5811538e+09 0.14655712 0.043898244 -26.236478 45.002184 6575.0352 5.2353808e+09 0.14464904 0.042339343 -26.332967 44.890753 6577.4909 4.8748136e+09 0.14225387 0.039449268 -26.434160 44.770286 6579.9466 4.5254357e+09 0.13981151 0.036550122 -26.532532 44.653176 6582.4022 4.2007966e+09 0.13746017 0.035184334 -26.622466 44.546112 6584.8579 3.9271481e+09 0.13515801 0.034048177 -26.712399 44.439048 6587.3136 3.6969642e+09 0.13262183 0.033227845 -26.802334 44.331984 6589.7692 3.4856627e+09 0.12982497 0.031519882 -26.892268 44.224919 6592.2249 3.2687138e+09 0.12635598 0.027855079 -26.985932 44.110086 6594.6806 3.0478870e+09 0.12286907 0.025798925 -27.082290 43.989637 6597.1362 2.8347070e+09 0.11896674 0.025679738 -27.175406 43.875945 6599.5919 2.6527023e+09 0.11639307 0.024965330 -27.265340 43.768881 6602.0476 2.4954156e+09 0.11522252 0.027476047 -27.356368 43.659540 6604.5032 2.3400156e+09 0.11364552 0.026370075 -27.452742 43.539073 6606.9589 2.1831630e+09 0.11287245 0.025780867 -27.548102 43.419874 6609.4146 2.0353666e+09 0.10986061 0.023829074 -27.633753 43.312809 6611.8702 1.9119461e+09 0.10730669 0.024403512 -27.719404 43.205745 6614.3259 1.8115819e+09 0.10629088 0.023715970 -27.805056 43.098681 6616.7816 1.7202242e+09 0.10477002 0.023404963 -27.890707 42.991617 6619.2372 1.6226244e+09 0.10405599 0.024583150 -27.978859 42.878871 6621.6929 1.5223772e+09 0.10302067 0.024859789 -28.070400 42.758421 6624.1485 1.4234267e+09 0.10102383 0.024941825 -28.158391 42.642642 6626.6042 1.3362234e+09 0.099251792 0.025821084 -28.239760 42.535578 6629.0599 1.2590695e+09 0.097560471 0.026098279 -28.321272 42.428326 6631.5155 1.1802801e+09 0.095511537 0.025983134 -28.412812 42.307879 6633.9712 1.1054668e+09 0.093639808 0.026321815 -28.504354 42.187430 6636.4269 1.0353250e+09 0.091771717 0.026383982 -28.586360 42.079527 6638.8825 9.7577802e+08 0.090158530 0.025633193 -28.667740 41.972449 6641.3382 9.2686587e+08 0.090271198 0.025149449 -28.749113 41.865379 6643.7939 8.8515127e+08 0.088794144 0.025312482 -28.830481 41.758314 6646.2495 8.4351738e+08 0.087046508 0.026049311 -28.913288 41.647655 6648.7052 7.9557518e+08 0.085221734 0.027436343 -29.000011 41.527206 6651.1609 7.4806119e+08 0.084116493 0.026607440 -29.085702 41.409340 6653.6165 7.0414793e+08 0.083039015 0.027840436 -29.167071 41.302276 6656.0722 6.6731851e+08 0.080833388 0.028086777 -29.248440 41.195212 6658.5279 6.3301608e+08 0.079069992 0.030997237 -29.334402 41.076664 6660.9835 5.9686563e+08 0.077659138 0.032519968 -29.421126 40.956215 6663.4392 5.6326697e+08 0.076431465 0.032361504 -29.500318 40.846226 6665.8948 5.3379564e+08 0.076284107 0.027080891 -29.577415 40.739147 6668.3505 5.0634050e+08 0.075463986 0.027780953 -29.658821 40.628240 6670.8062 4.7857403e+08 0.075253918 0.026955143 -29.745543 40.512608 6673.2618 4.4933797e+08 0.074909172 0.027850822 -29.830473 40.395184 6675.7175 4.2150889e+08 0.072851621 0.031172647 -29.912379 40.274735 6678.1732 3.9504274e+08 0.071636151 0.030820789 -29.992855 40.158254 6680.6288 3.7495518e+08 0.072166579 0.029577209 -30.069942 40.051190 6683.0845 3.5719076e+08 0.072894795 0.031312419 -30.147028 39.944126 6685.5402 3.3719851e+08 0.072562383 0.033275387 -30.228748 39.824192 6687.9958 3.1980467e+08 0.070108203 0.033787515 -30.310654 39.703742 6690.4515 3.0181019e+08 0.068046979 0.033064122 -30.384505 39.595138 6692.9072 2.8834809e+08 0.066990888 0.031711897 -30.457318 39.488060 6695.3628 2.7410910e+08 0.066310127 0.029792827 -30.535143 39.373612 6697.8185 2.5812937e+08 0.065518023 0.030194847 -30.617048 39.253163 6700.2742 2.4299470e+08 0.063657146 0.030871068 -30.696662 39.132714 6702.7298 2.2958767e+08 0.062498077 0.033459495 -30.773749 39.012265 6705.1855 2.1890102e+08 0.062583101 0.036998362 -30.849123 38.897170 6707.6412 2.0703436e+08 0.062080792 0.040094982 -30.921927 38.790106 6710.0968 1.9673952e+08 0.060797856 0.040515445 -30.995009 38.682172 6712.5525 1.8726961e+08 0.058410813 0.042855730 -31.072096 38.561722 6715.0081 1.7668938e+08 0.056236128 0.047386919 -31.149184 38.441273 6717.4638 1.6726993e+08 0.053951204 0.049845580 -31.231039 38.320824 6719.9195 1.5818251e+08 0.052354021 0.050496271 -31.312944 38.200374 6722.3751 1.4834775e+08 0.052141660 0.050141434 -31.390447 38.084329 6724.8308 1.4079871e+08 0.047965033 0.042988910 -31.467534 37.968699 6727.2865 1.3217052e+08 0.045801729 0.040578727 -31.544631 37.849014 6729.7421 1.2362936e+08 0.044691789 0.040550776 -31.621730 37.728547 6732.1978 1.1784629e+08 0.042583186 0.043776623 -31.692284 37.618306 6734.6535 1.1091980e+08 0.041904665 0.049314282 -31.760805 37.511242 6737.1091 1.0679451e+08 0.043488720 0.054483198 -31.830931 37.398449 6739.5648 1.0281193e+08 0.043605617 0.063517752 -31.903201 37.277999 6742.0205 1.0115253e+08 0.041062080 0.068660602 -31.977169 37.157550 6744.4761 97595274. 0.035908212 0.078161681 -32.054256 37.037101 6746.9318 90456445. 0.030818544 0.068154196 -32.130009 36.916652 6749.3875 84247302. 0.029279834 0.072171848 -32.202278 36.796203 6751.8431 76403026. 0.024803338 0.074068146 -32.274547 36.676724 6754.2988 73595908. 0.022721734 0.075732991 -32.346817 36.561092 6756.7544 70054244. 0.019186855 0.076108215 -32.419693 36.444854 6759.2101 67613549. 0.019330172 0.075870658 -32.496780 36.324404 6761.6658 66019868. 0.021129086 0.078023231 -32.573627 36.203954 6764.1214 62138751. 0.023744009 0.079489104 -32.645897 36.083505 6766.5771 61173861. 0.021593206 0.081019175 -32.718167 35.963056 6769.0328 57185674. -0.0050828161 0.084533748 -32.785750 35.842590 6771.4884 53734525. 0.0084643682 0.090489815 -32.853212 35.722122 6773.9441 49421367. 0.047116570 0.096445882 -32.934283 35.591147