# # 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 = 51.884539 km # Date (UTC) = 2014-01-03T09:20:57.573 # Date (julian) = 2456660.88955524 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6504.2932 5.0005880e+10 0.059291302 0.033577820 -21.511848 48.328150 6506.1780 4.6999894e+10 0.067295575 0.034146158 -21.604294 48.235704 6508.0627 4.4012339e+10 0.075514446 0.034714496 -21.686951 48.153049 6509.9474 4.1595432e+10 0.084167684 0.035282834 -21.765837 48.074164 6511.8322 3.9666155e+10 0.093262828 0.035851172 -21.844723 47.995279 6513.7169 3.7765840e+10 0.10263181 0.036419510 -21.932823 47.904665 6515.6017 3.5537671e+10 0.11210350 0.036987848 -22.025269 47.808521 6517.4864 3.3401588e+10 0.12186029 0.037556186 -22.117715 47.712377 6519.3711 3.1249336e+10 0.13182209 0.038124524 -22.196936 47.629859 6521.2559 2.8961195e+10 0.14186163 0.038692862 -22.275821 47.547686 6523.1406 2.7122810e+10 0.14913397 0.039213964 -22.354706 47.465514 6525.0254 2.5466455e+10 0.15523693 0.039779321 -22.439343 47.373758 6526.9101 2.4194757e+10 0.15965237 0.040622211 -22.524392 47.281312 6528.7948 2.2986870e+10 0.16298110 0.042073023 -22.608036 47.191212 6530.6796 2.1653939e+10 0.16651731 0.044780081 -22.686932 47.109029 6532.5643 2.0465996e+10 0.17022036 0.047155612 -22.765827 47.026846 6534.4490 1.9194206e+10 0.17168752 0.048070173 -22.845872 46.942747 6536.3338 1.7809476e+10 0.17172104 0.048089148 -22.930921 46.850302 6538.2185 1.6417121e+10 0.17271975 0.049263091 -23.015971 46.757856 6540.1033 1.5296562e+10 0.17287546 0.050902886 -23.096463 46.670366 6541.9880 1.4535005e+10 0.17085861 0.051006129 -23.172062 46.588193 6543.8727 1.3931617e+10 0.16881025 0.051610948 -23.247661 46.506020 6545.7575 1.3252176e+10 0.16711986 0.052462353 -23.325791 46.419328 6547.6422 1.2464762e+10 0.16609126 0.053531588 -23.407143 46.326883 6549.5270 1.1609887e+10 0.16460475 0.054503291 -23.488495 46.234437 6551.4117 1.0859042e+10 0.16317650 0.055380262 -23.565614 46.149549 6553.2964 1.0254399e+10 0.16193971 0.055186054 -23.641213 46.067376 6555.1812 9.7804931e+09 0.16065486 0.054701136 -23.716811 45.985204 6557.0659 9.2863164e+09 0.15901366 0.053824793 -23.796399 45.895909 6558.9507 8.7147347e+09 0.15683824 0.052429233 -23.877750 45.803464 6560.8354 8.1576465e+09 0.15488355 0.051521098 -23.959102 45.711018 6562.7201 7.6496188e+09 0.15328178 0.050194675 -24.031524 45.628722 6564.6049 7.2487667e+09 0.15137642 0.048497472 -24.103845 45.546538 6566.4896 6.9037819e+09 0.14961316 0.046905916 -24.176167 45.464355 6568.3743 6.5360007e+09 0.14832496 0.045427551 -24.253539 45.372453 6570.2591 6.1579272e+09 0.14734989 0.044810188 -24.331193 45.280008 6572.1438 5.7921254e+09 0.14599281 0.044147793 -24.406752 45.189258 6574.0286 5.4786506e+09 0.14386514 0.042841288 -24.475777 45.103799 6575.9133 5.2288728e+09 0.14196591 0.041458382 -24.544803 45.018340 6577.7980 5.0064911e+09 0.13980451 0.038966848 -24.615557 44.931481 6579.6828 4.7662494e+09 0.13739791 0.036695145 -24.693211 44.839036 6581.5675 4.5202288e+09 0.13527666 0.035424758 -24.770864 44.746590 6583.4523 4.2621172e+09 0.13373842 0.034792756 -24.848519 44.654145 6585.3370 4.0139308e+09 0.13244981 0.033701355 -24.926173 44.561699 6587.2217 3.7878318e+09 0.13126831 0.033207497 -25.003828 44.469253 6589.1065 3.5844344e+09 0.12988778 0.032834750 -25.074657 44.384933 6590.9912 3.4198694e+09 0.12799704 0.029218262 -25.143691 44.302749 6592.8759 3.2798271e+09 0.12645255 0.027222713 -25.212725 44.220566 6594.7607 3.1475291e+09 0.12452147 0.025754943 -25.285449 44.130689 6596.6454 2.9997460e+09 0.12234278 0.025724339 -25.359406 44.038243 6598.5302 2.8460515e+09 0.12090223 0.025154046 -25.432989 43.946265 6600.4149 2.7031905e+09 0.12080258 0.025842838 -25.498727 43.864092 6602.2996 2.5888892e+09 0.12020259 0.027260931 -25.564465 43.781920 6604.1844 2.4897148e+09 0.11887087 0.026180755 -25.630259 43.699651 6606.0691 2.3877249e+09 0.11844992 0.027379759 -25.704184 43.603560 6607.9539 2.2718708e+09 0.11649469 0.023823485 -25.778141 43.507416 6609.8386 2.1510227e+09 0.11387150 0.023955034 -25.849642 43.415446 6611.7233 2.0507199e+09 0.11148133 0.024497182 -25.915380 43.333274 6613.6081 1.9705068e+09 0.11039833 0.023796694 -25.981119 43.251101 6615.4928 1.9045716e+09 0.10880677 0.023266694 -26.048964 43.166294 6617.3776 1.8270325e+09 0.10757442 0.023564425 -26.122920 43.073849 6619.2623 1.7370340e+09 0.10663508 0.024589201 -26.196876 42.981403 6621.1470 1.6511328e+09 0.10557288 0.025040713 -26.264485 42.894624 6623.0318 1.5730622e+09 0.10408506 0.024503596 -26.326944 42.812440 6624.9165 1.5142105e+09 0.10269764 0.025352911 -26.389404 42.730257 6626.8012 1.4604424e+09 0.10093362 0.025570042 -26.455842 42.642838 6628.6860 1.4027292e+09 0.10003059 0.025981611 -26.526101 42.550392 6630.5707 1.3394168e+09 0.098814880 0.025929708 -26.596360 42.457947 6632.4555 1.2740646e+09 0.097648513 0.026086959 -26.666618 42.365501 6634.3402 1.2069106e+09 0.096507901 0.026351658 -26.736876 42.273056 6636.2249 1.1495779e+09 0.095270731 0.026462400 -26.806008 42.181320 6638.1097 1.1004063e+09 0.094442692 0.025666864 -26.865172 42.095861 6639.9944 1.0576977e+09 0.094331861 0.025272648 -26.924337 42.010402 6641.8792 1.0213264e+09 0.094299924 0.025151286 -26.984158 41.924529 6643.7639 9.8071425e+08 0.093343051 0.025307957 -27.054416 41.832084 6645.6486 9.3758338e+08 0.092423929 0.025755545 -27.124675 41.739638 6647.5334 8.9495973e+08 0.091401727 0.026718602 -27.190999 41.650835 6649.4181 8.5726304e+08 0.090325547 0.027057343 -27.250172 41.568651 6651.3028 8.2679183e+08 0.089711372 0.026716255 -27.309344 41.486468 6653.1876 7.9801322e+08 0.089104130 0.027621437 -27.370828 41.401073 6655.0723 7.7151809e+08 0.087695985 0.027640102 -27.437389 41.308628 6656.9571 7.4556020e+08 0.085676459 0.028863428 -27.503949 41.216183 6658.8418 7.1614512e+08 0.084053838 0.031554035 -27.570510 41.123737 6660.7265 6.8587557e+08 0.082665646 0.032286390 -27.637070 41.031292 6662.6113 6.5138516e+08 0.081372836 0.032701306 -27.703630 40.938846 6664.4960 6.2550292e+08 0.080309984 0.030391171 -27.763502 40.855690 6666.3808 6.0416400e+08 0.080138852 0.026982791 -27.822667 40.773518 6668.2655 5.8630109e+08 0.079342954 0.027705721 -27.881831 40.691345 6670.1502 5.7044384e+08 0.078972651 0.027259031 -27.947371 40.597129 6672.0350 5.4771834e+08 0.078764572 0.026899872 -28.013932 40.500985 6673.9197 5.2384909e+08 0.078123634 0.028834717 -28.079910 40.405424 6675.8045 4.9879846e+08 0.076262376 0.031339179 -28.142773 40.312979 6677.6892 4.7682432e+08 0.075172210 0.031378460 -28.205636 40.220533 6679.5739 4.5970619e+08 0.074988964 0.029793501 -28.268499 40.128088 6681.4587 4.4370837e+08 0.075729882 0.030009242 -28.331362 40.035642 6683.3434 4.2596763e+08 0.076116159 0.031691849 -28.394225 39.943197 6685.2281 4.0843555e+08 0.075861816 0.032945816 -28.451861 39.858438 6687.1129 3.9228952e+08 0.074191269 0.034279943 -28.507746 39.776254 6688.9976 3.7885466e+08 0.071549131 0.034015476 -28.563631 39.694071 6690.8824 3.6874327e+08 0.070667524 0.033014744 -28.624450 39.604631 6692.7671 3.5772624e+08 0.069790323 0.031874540 -28.687313 39.512185 6694.6518 3.4522026e+08 0.069021495 0.030347438 -28.750176 39.419740 6696.5366 3.3237993e+08 0.068593177 0.029898723 -28.813039 39.327294 6698.4213 3.2107845e+08 0.067552713 0.030796124 -28.875901 39.234849 6700.3061 3.1076753e+08 0.065947548 0.030894729 -28.937661 39.142404 6702.1908 2.9769631e+08 0.064569305 0.033029081 -28.996826 39.049958 6704.0755 2.8277544e+08 0.064774607 0.036214644 -29.055991 38.957513 6705.9603 2.6982732e+08 0.064723140 0.038375777 -29.117353 38.862870 6707.8450 2.5787556e+08 0.064416951 0.040065779 -29.180216 38.766728 6709.7298 2.4924595e+08 0.063493400 0.040668387 -29.243079 38.670585 6711.6145 2.4121066e+08 0.061734824 0.041391352 -29.302651 38.577732 6713.4992 2.3007905e+08 0.060005166 0.045492223 -29.361817 38.485286 6715.3840 2.1851572e+08 0.058479014 0.047771298 -29.419762 38.394747 6717.2687 2.0655887e+08 0.056743340 0.049857648 -29.472352 38.312575 6719.1534 2.0053044e+08 0.054777459 0.051224056 -29.524942 38.230402 6721.0382 1.9653231e+08 0.055195627 0.050315403 -29.578476 38.146756 6722.9229 1.9113858e+08 0.054286862 0.049464233 -29.637649 38.054297 6724.8077 1.8409875e+08 0.050681215 0.043182182 -29.696823 37.961838 6726.6924 1.7546226e+08 0.048791737 0.040957612 -29.755993 37.869384 6728.5771 1.7074460e+08 0.048425507 0.040446093 -29.815158 37.776939 6730.4619 1.6390592e+08 0.046989204 0.041012191 -29.874323 37.684494 6732.3466 1.5892969e+08 0.045625504 0.043804020 -29.930771 37.592048 6734.2314 1.5388172e+08 0.044892084 0.049339680 -29.986239 37.499602 6736.1161 1.4644749e+08 0.046440360 0.050793901 -30.041821 37.407156 6738.0008 1.4157463e+08 0.047506505 0.057325667 -30.100986 37.314710 6739.8856 1.3860926e+08 0.047299424 0.063910321 -30.160151 37.222265 6741.7703 1.3686618e+08 0.045432152 0.067955657 -30.218109 37.129819 6743.6550 1.3357152e+08 0.041389172 0.075466372 -30.273576 37.037374 6745.5398 1.2829968e+08 0.039683124 0.078793808 -30.329043 36.944928 6747.4245 1.2476617e+08 0.035271151 0.067215013 -30.384511 36.852483 6749.3093 1.2244001e+08 0.034542528 0.072193257 -30.439978 36.760037 6751.1940 1.1890427e+08 0.032051685 0.073793696 -30.495445 36.667592 6753.0787 1.1504608e+08 0.029806967 0.073232111 -30.558186 36.563022 6754.9635 1.1020377e+08 0.028284574 0.074664075 -30.621579 36.457368 6756.8482 1.0548739e+08 0.025890737 0.076349501 -30.680599 36.359000 6758.7330 1.0050560e+08 0.026692370 0.075255258 -30.736067 36.266554 6760.6177 97414582. 0.027107898 0.077239189 -30.791534 36.174108 6762.5024 94624107. 0.031548509 0.077240376 -30.847002 36.081663 6764.3872 90972507. 0.034083674 0.079501834 -30.902470 35.989217 6766.2719 86787681. 0.035198405 0.080328818 -30.957937 35.896772 6768.1567 84350708. 0.032273052 0.081419693 -31.013405 35.804326 6770.0414 84479812. 0.028312262 0.086980089 -31.068872 35.711881 6771.9261 84981790. 0.024942664 0.091551409 -31.122720 35.619429 6773.8109 83950073. 0.021574740 0.096122729 -31.174497 35.526970 6775.6956 78982558. 0.018213761 0.10069405 -31.226274 35.434511 6777.5803 75319484. 0.014848569 0.10526537 -31.286587 35.332355 6779.4651 73021713. 0.011474506 0.10983669 -31.349979 35.226700 6781.3498 71096603. 0.0080943608 0.11440801 -31.409087 35.125916 6783.2346 71092079. 0.0047070208 0.11897933 -31.460857 35.033470 6785.1193 66145559. 0.0012857834 0.12355065 -31.512627 34.941024 6787.0040 61756945. -0.0021704380 0.12812197 -31.564397 34.848578 6788.8888 60738937. -0.0056382071 0.13269329 -31.616166 34.756133 6790.7735 61938910. -0.0091285663 0.13726461 -31.667935 34.663687 6792.6583 63973742. -0.012675948 0.14183593 -31.726806 34.558560 6794.5430 61902024. -0.016449724 0.14640725 -31.785972 34.452906 6796.4277 56243446. -0.020680506 0.15097857 -31.840746 34.355096 6798.3125 51099483. -0.026398453 0.15554989 -31.892516 34.262651 6800.1972 47110784. -0.042850182 0.16012121 -31.944286 34.170205 6802.0819 44607737. -0.036489287 0.16469253 -32.002636 34.069768 6803.9667 44984849. -0.016692028 0.16926385 -32.061802 33.968338