# # 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 = 46.368965 km # Date (UTC) = 2013-12-20T09:44:03.582 # Date (julian) = 2456646.90559702 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6499.8673 4.3430012e+10 0.040118127 0.032243205 -27.373417 48.871331 6501.8165 4.0857571e+10 0.046791505 0.032830973 -27.461798 48.786350 6503.7657 3.8557037e+10 0.053796079 0.033418742 -27.548634 48.702913 6505.7149 3.6396716e+10 0.061178492 0.034006510 -27.633616 48.621330 6507.6640 3.4266243e+10 0.068927309 0.034594278 -27.718598 48.539746 6509.6132 3.2486817e+10 0.077223488 0.035182047 -27.805323 48.458163 6511.5624 3.0710579e+10 0.085941656 0.035769815 -27.893704 48.376580 6513.5116 2.8925012e+10 0.095074035 0.036357583 -27.982085 48.294997 6515.4607 2.7289718e+10 0.10474088 0.036945352 -28.068532 48.211467 6517.4099 2.5714240e+10 0.11486979 0.037533120 -28.153525 48.126474 6519.3591 2.4329802e+10 0.12558126 0.038120888 -28.238518 48.041481 6521.3083 2.3101897e+10 0.13685448 0.038708656 -28.321364 47.958635 6523.2574 2.1928643e+10 0.14502461 0.039242915 -28.402946 47.877053 6525.2066 2.0784438e+10 0.15190535 0.039758636 -28.484529 47.795472 6527.1558 1.9614208e+10 0.15763696 0.040829565 -28.568449 47.713889 6529.1049 1.8502511e+10 0.16185809 0.042402960 -28.653431 47.632306 6531.0541 1.7442735e+10 0.16596310 0.045307457 -28.738413 47.550723 6533.0033 1.6485285e+10 0.17085145 0.047520989 -28.820859 47.466604 6534.9525 1.5595015e+10 0.17319517 0.048211001 -28.902441 47.381623 6536.9016 1.4779009e+10 0.17350214 0.048597227 -28.984024 47.296641 6538.8508 1.4039197e+10 0.17288668 0.049570986 -29.065615 47.214384 6540.8000 1.3373078e+10 0.17176680 0.051232040 -29.147208 47.132792 6542.7492 1.2706175e+10 0.17018469 0.051286664 -29.228802 47.051199 6544.6983 1.1961916e+10 0.16878480 0.052210857 -29.315886 46.957516 6546.6475 1.1161831e+10 0.16701102 0.052997328 -29.403843 46.861910 6548.5967 1.0341478e+10 0.16553007 0.053845838 -29.490220 46.769780 6550.5459 9.6299994e+09 0.16452946 0.055122040 -29.571803 46.688197 6552.4950 9.0299051e+09 0.16360964 0.055462165 -29.653385 46.606613 6554.4442 8.5192915e+09 0.16205566 0.054841702 -29.733928 46.523990 6556.3934 8.0490042e+09 0.16044222 0.053955290 -29.812111 46.439008 6558.3426 7.6052317e+09 0.15898835 0.052947399 -29.890295 46.354027 6560.2917 7.1911815e+09 0.15722910 0.052011271 -29.967240 46.270283 6562.2409 6.7809991e+09 0.15527155 0.050650668 -30.042024 46.188701 6564.1901 6.4085490e+09 0.15298125 0.048685451 -30.116808 46.107119 6566.1393 6.0800043e+09 0.15121078 0.047104106 -30.193032 46.024097 6568.0884 5.7815357e+09 0.15002940 0.045690371 -30.271226 45.939104 6570.0376 5.5085742e+09 0.14879412 0.044901931 -30.349419 45.854111 6571.9868 5.2382287e+09 0.14709682 0.044233766 -30.425973 45.770758 6573.9360 4.9724039e+09 0.14465029 0.042906400 -30.500757 45.689175 6575.8851 4.7232503e+09 0.14237869 0.041486645 -30.575542 45.607591 6577.8343 4.4901020e+09 0.14000965 0.038909883 -30.650326 45.524176 6579.7835 4.2660346e+09 0.13758783 0.036639785 -30.725109 45.439194 6581.7327 4.0529153e+09 0.13553168 0.035374752 -30.799893 45.354212 6583.6818 3.8523391e+09 0.13392356 0.034676556 -30.874677 45.271262 6585.6310 3.6618470e+09 0.13243153 0.033466302 -30.949461 45.189680 6587.5802 3.4928310e+09 0.13118273 0.033286914 -31.024244 45.108098 6589.5293 3.3358708e+09 0.12950479 0.031995797 -31.096806 45.024280 6591.4785 3.1907290e+09 0.12731319 0.028661952 -31.168201 44.939287 6593.4277 3.0591283e+09 0.12536736 0.026704592 -31.239595 44.854294 6595.3769 2.9191126e+09 0.12309631 0.025662654 -31.317356 44.764452 6597.3260 2.7661266e+09 0.12105538 0.025619840 -31.397665 44.672669 6599.2752 2.6113315e+09 0.11965516 0.024946283 -31.477087 44.581562 6601.2244 2.4693890e+09 0.11957023 0.027151367 -31.548473 44.496580 6603.1736 2.3494900e+09 0.11846350 0.026560522 -31.619858 44.411598 6605.1227 2.2469261e+09 0.11760427 0.026768014 -31.691243 44.327152 6607.0719 2.1543175e+09 0.11608657 0.025564987 -31.762627 44.245568 6609.0211 2.0618281e+09 0.11292593 0.023712196 -31.834012 44.163985 6610.9703 1.9759473e+09 0.10984663 0.024930045 -31.905398 44.081666 6612.9194 1.8912309e+09 0.10850875 0.023633782 -31.976792 43.996673 6614.8686 1.8096609e+09 0.10696024 0.023342052 -32.048186 43.911680 6616.8178 1.7328951e+09 0.10510709 0.023410651 -32.118645 43.826691 6618.7670 1.6614400e+09 0.10388241 0.024349943 -32.186630 43.741709 6620.7161 1.5955292e+09 0.10265805 0.024997972 -32.254616 43.656727 6622.6653 1.5309701e+09 0.10105303 0.024580909 -32.325428 43.569485 6624.6145 1.4634099e+09 0.099516099 0.025191240 -32.401913 43.477704 6626.5637 1.3863326e+09 0.098188662 0.025872750 -32.478398 43.385922 6628.5128 1.3190326e+09 0.097165860 0.025911310 -32.548784 43.299020 6630.4620 1.2578733e+09 0.095939400 0.025929440 -32.616770 43.214039 6632.4112 1.2040394e+09 0.094618038 0.026081649 -32.684756 43.129057 6634.3604 1.1519821e+09 0.093332469 0.026353129 -32.752741 43.046712 6636.3095 1.0988746e+09 0.092023736 0.026429550 -32.820727 42.965129 6638.2587 1.0538465e+09 0.091100181 0.025660371 -32.888712 42.883546 6640.2079 1.0146150e+09 0.091079295 0.025245218 -32.953870 42.799119 6642.1571 9.8006768e+08 0.090927866 0.025158123 -33.018465 42.714125 6644.1062 9.4399823e+08 0.089770338 0.025355087 -33.083059 42.629132 6646.0554 9.0239497e+08 0.088743272 0.025948824 -33.154853 42.538080 6648.0046 8.5838806e+08 0.087780617 0.026967347 -33.227513 42.446299 6649.9537 8.1209802e+08 0.086988842 0.026318992 -33.297931 42.356406 6651.9029 7.7506849e+08 0.086278499 0.027176125 -33.362518 42.271425 6653.8521 7.4381415e+08 0.085464196 0.027960712 -33.427105 42.186443 6655.8013 7.1515421e+08 0.083669395 0.027941303 -33.491691 42.101461 6657.7504 6.8733763e+08 0.082026975 0.029771604 -33.556277 42.016479 6659.6996 6.6221408e+08 0.080372680 0.031688657 -33.620863 41.931498 6661.6488 6.3860904e+08 0.078712982 0.032865394 -33.688630 41.843836 6663.5980 6.1059182e+08 0.077309632 0.032317501 -33.761290 41.752053 6665.5471 5.8074418e+08 0.077065720 0.027650619 -33.833951 41.660270 6667.4963 5.4992323e+08 0.076600290 0.027285763 -33.897678 41.573778 6669.4455 5.2386464e+08 0.075826840 0.027898153 -33.958873 41.488785 6671.3947 5.0452036e+08 0.075883764 0.026870973 -34.020068 41.403792 6673.3438 4.8670412e+08 0.075465079 0.027973453 -34.084105 41.321656 6675.2930 4.6836753e+08 0.073899501 0.030359584 -34.148692 41.240075 6677.2422 4.4909776e+08 0.072212834 0.032013924 -34.213279 41.158493 6679.1914 4.3051955e+08 0.071788589 0.030109639 -34.281673 41.064347 6681.1405 4.0994983e+08 0.072792879 0.029765175 -34.350509 40.968741 6683.0897 3.9205566e+08 0.073340269 0.031320052 -34.417196 40.877075 6685.0389 3.7692899e+08 0.073147164 0.032745909 -34.478383 40.795492 6686.9881 3.6122739e+08 0.071555653 0.034335952 -34.539571 40.713908 6688.9372 3.4193880e+08 0.068992099 0.034001535 -34.602055 40.627568 6690.8864 3.2491966e+08 0.068152915 0.033014281 -34.667066 40.531962 6692.8356 3.1091193e+08 0.067341542 0.031795019 -34.732078 40.436356 6694.7848 3.0242607e+08 0.066574780 0.030161152 -34.794325 40.350900 6696.7339 2.9959953e+08 0.065940593 0.029980718 -34.855520 40.269306 6698.6831 2.9088676e+08 0.064725585 0.031155455 -34.916715 40.187712 6700.6323 2.8147753e+08 0.062981361 0.031136696 -34.980898 40.095148 6702.5815 2.6884593e+08 0.062061930 0.033341022 -35.045909 39.999542 6704.5306 2.5779830e+08 0.062102329 0.036438118 -35.110278 39.906292 6706.4798 2.4665428e+08 0.061754774 0.039281458 -35.171465 39.824710 6708.4290 2.3722386e+08 0.061216400 0.040510715 -35.232652 39.743129 6710.3781 2.2672358e+08 0.059884353 0.040570513 -35.294704 39.658375 6712.3273 2.1371512e+08 0.057957582 0.042437687 -35.359718 39.562768 6714.2765 2.0250490e+08 0.055994479 0.047324195 -35.424731 39.467162 6716.2257 1.9437308e+08 0.054316622 0.048733752 -35.489743 39.371555 6718.1748 1.8575165e+08 0.052298602 0.050084721 -35.554754 39.275949 6720.1240 1.7646809e+08 0.051366631 0.050405397 -35.619716 39.180409 6722.0732 1.6793704e+08 0.051232583 0.050514718 -35.674199 39.098699 6724.0224 1.6090405e+08 0.049141623 0.049739879 -35.728595 39.017105 6725.9715 1.5609888e+08 0.045324526 0.040969144 -35.783574 38.934741 6727.9207 1.5141343e+08 0.044479807 0.039733729 -35.848587 38.839135 6729.8699 1.4298421e+08 0.043195808 0.040465624 -35.913600 38.743529 6731.8191 1.3613861e+08 0.041465146 0.043380113 -35.976929 38.649606 6733.7682 1.2917548e+08 0.040335551 0.048095297 -36.038117 38.557825 6735.7174 1.2022663e+08 0.041360888 0.050055018 -36.099306 38.466043 6737.6666 1.1533649e+08 0.042452636 0.056258993 -36.157687 38.382678 6739.6158 1.1291520e+08 0.042439195 0.063580126 -36.215474 38.301095 6741.5649 1.1183094e+08 0.040732967 0.067369919 -36.273261 38.219512 6743.5141 1.0934241e+08 0.036728934 0.074515606 -36.334052 38.125541 6745.4633 1.0507769e+08 0.034583595 0.078761647 -36.395240 38.029935 6747.4125 99606069. 0.030004363 0.067219168 -36.456428 37.935356 6749.3616 95199187. 0.028998059 0.072178918 -36.517615 37.843575 6751.3108 94124761. 0.026289929 0.073843081 -36.578803 37.751794 6753.2600 89493698. 0.024001916 0.073818632 -36.639991 37.657512 6755.2092 87966476. 0.022212586 0.074513645 -36.701179 37.561906 6757.1583 84833505. 0.019892468 0.076259572 -36.762219 37.466447 6759.1075 77057051. 0.020428982 0.075845896 -36.819584 37.374665 6761.0567 76891688. 0.020825107 0.077972907 -36.876948 37.282883 6763.0059 72925807. 0.025391030 0.076455583 -36.935936 37.189474 6764.9550 71909920. 0.027251418 0.079529038 -36.997133 37.093853 6766.9042 68877798. 0.026450707 0.081759062 -37.058330 36.998233 6768.8534 64142644. 0.020609358 0.083926664 -37.116425 36.905720 6770.8025 60806431. 0.014431483 0.088826231 -37.173790 36.813939 6772.7517 57289178. 0.0048912280 0.093553835 -37.231153 36.721414 6774.7009 55853969. -0.031741352 0.098281440 -37.288516 36.625808 6776.6501 52582247. -0.0089986269 0.10300904 -37.345879 36.530202 6778.5992 51410406. 0.049940627 0.10773665 -37.405458 36.436812