# # 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 = 68.251274 km # Date (UTC) = 2014-01-04T10:08:30.049 # Date (julian) = 2456661.92257001 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6490.9892 6.9831376e+10 0.036480489 0.029566018 -32.770823 49.098442 6493.6212 6.3604006e+10 0.044932785 0.030359707 -32.898356 48.971647 6496.2533 5.7028116e+10 0.053252865 0.031153397 -33.027457 48.842546 6498.8853 5.1026399e+10 0.061258477 0.031947086 -33.161238 48.713427 6501.5174 4.5628409e+10 0.068899618 0.032740776 -33.295522 48.584307 6504.1495 4.1614817e+10 0.075931912 0.033534465 -33.406492 48.469073 6506.7815 3.8542498e+10 0.082490258 0.034328155 -33.516657 48.354318 6509.4136 3.6087873e+10 0.088795673 0.035121844 -33.641746 48.228257 6512.0456 3.3596801e+10 0.095180260 0.035915534 -33.770847 48.099156 6514.6777 3.0689748e+10 0.10188234 0.036709223 -33.895549 47.970055 6517.3097 2.7988231e+10 0.10939144 0.037502913 -34.019485 47.840953 6519.9418 2.5726916e+10 0.11839719 0.038296602 -34.130819 47.724982 6522.5738 2.3852249e+10 0.12783543 0.039067519 -34.240984 47.610227 6525.2059 2.2067872e+10 0.13379813 0.039758716 -34.361293 47.484905 6527.8380 2.0305192e+10 0.13964364 0.041324837 -34.485229 47.355803 6530.4700 1.8628543e+10 0.14641019 0.044486705 -34.598158 47.238169 6533.1021 1.7150536e+10 0.15428608 0.047562963 -34.708338 47.123399 6535.7341 1.5836571e+10 0.16022368 0.047905837 -34.823861 46.996505 6538.3662 1.4527775e+10 0.16614401 0.049334991 -34.942634 46.862239 6540.9982 1.3182751e+10 0.16824392 0.051325695 -35.061407 46.731513 6543.6303 1.1937529e+10 0.16757819 0.051547316 -35.180180 46.602412 6546.2623 1.0893921e+10 0.16514359 0.052680396 -35.285631 46.484055 6548.8944 1.0040149e+10 0.16307474 0.053934746 -35.386615 46.369301 6551.5265 9.2670973e+09 0.16155131 0.055420547 -35.497746 46.246363 6554.1585 8.5054197e+09 0.15944690 0.054835707 -35.616519 46.117262 6556.7906 7.7885484e+09 0.15765254 0.053896897 -35.724016 45.997255 6559.4226 7.1719633e+09 0.15525399 0.052339479 -35.825000 45.882500 6562.0547 6.6483210e+09 0.15290272 0.050827869 -35.929389 45.761204 6564.6867 6.1512839e+09 0.15057586 0.048460366 -36.037850 45.632084 6567.3188 5.6974831e+09 0.14894953 0.046347637 -36.142429 45.508039 6569.9509 5.3099963e+09 0.14780118 0.044914310 -36.243414 45.388695 6572.5829 4.9629207e+09 0.14624839 0.043896339 -36.346939 45.266027 6575.2150 4.6192317e+09 0.14434700 0.042159031 -36.455384 45.136926 6577.8470 4.2710122e+09 0.14204508 0.038889908 -36.563829 45.007825 6580.4791 3.9401544e+09 0.13954390 0.036078017 -36.672273 44.878724 6583.1111 3.6646937e+09 0.13740521 0.034965416 -36.775081 44.756332 6585.7432 3.4375462e+09 0.13478590 0.033376611 -36.871475 44.641577 6588.3752 3.2273182e+09 0.13251288 0.033254617 -36.971354 44.522675 6591.0073 3.0222569e+09 0.12909110 0.029193671 -37.079800 44.393574 6593.6394 2.8234020e+09 0.12575271 0.026507813 -37.182381 44.267907 6596.2714 2.6439837e+09 0.12179190 0.025726040 -37.274195 44.148546 6598.9035 2.4931871e+09 0.11898870 0.024975817 -37.368009 44.027486 6601.5355 2.3504025e+09 0.11879807 0.027297892 -37.471291 43.898384 6604.1676 2.2014545e+09 0.11767611 0.026170781 -37.574572 43.769283 6606.7996 2.0490002e+09 0.11740328 0.026067040 -37.677854 43.640182 6609.4317 1.9123827e+09 0.11443560 0.023834165 -37.777675 43.515406 6612.0637 1.7993652e+09 0.11197013 0.024273120 -37.869479 43.400651 6614.6958 1.6993925e+09 0.11110975 0.023461110 -37.962694 43.283498 6617.3279 1.6013782e+09 0.10990651 0.023547951 -38.065975 43.149234 6619.9599 1.5000346e+09 0.10950745 0.024757526 -38.166263 43.018604 6622.5920 1.4134205e+09 0.10808191 0.024600429 -38.253487 42.903834 6625.2240 1.3373349e+09 0.10638153 0.025664939 -38.340814 42.788930 6627.8561 1.2696846e+09 0.10423473 0.025647503 -38.438917 42.659846 6630.4881 1.1996353e+09 0.10238724 0.025929505 -38.537033 42.530745 6633.1202 1.1219633e+09 0.10058312 0.026173238 -38.635151 42.401644 6635.7523 1.0522153e+09 0.098554859 0.026512600 -38.731795 42.273862 6638.3843 9.8844079e+08 0.096988036 0.025654899 -38.819008 42.154516 6641.0164 9.3698017e+08 0.096898179 0.025148356 -38.906221 42.035170 6643.6484 8.9151512e+08 0.095603349 0.025290522 -38.998925 41.906491 6646.2805 8.4490556e+08 0.093830430 0.026065332 -39.091878 41.777390 6648.9125 7.9599927e+08 0.091904238 0.027575138 -39.184831 41.648289 6651.5446 7.4666134e+08 0.090917371 0.026901515 -39.276920 41.520388 6654.1766 7.0611073e+08 0.089567961 0.027960973 -39.359554 41.405618 6656.8087 6.7084423e+08 0.087070207 0.028733211 -39.442189 41.290849 6659.4408 6.4121994e+08 0.085201476 0.031742656 -39.534166 41.158427 6662.0728 6.0925233e+08 0.083714162 0.033003418 -39.627119 41.024163 6664.7049 5.7809953e+08 0.082853425 0.029626997 -39.720073 40.894901 6667.3369 5.5111491e+08 0.082544360 0.027227217 -39.813026 40.765800 6669.9690 5.1936167e+08 0.081916207 0.027360490 -39.905979 40.636699 6672.6010 4.9100623e+08 0.081701095 0.027227972 -39.997498 40.508976 6675.2331 4.6617676e+08 0.079968310 0.030244819 -40.075531 40.394221 6677.8652 4.4443532e+08 0.078097230 0.031128316 -40.153563 40.279467 6680.4972 4.2876335e+08 0.078305420 0.029548784 -40.240548 40.151549 6683.1293 4.0765157e+08 0.079017773 0.031378017 -40.328337 40.022448 6685.7613 3.8700495e+08 0.078476330 0.033508978 -40.416126 39.888279 6688.3934 3.6728418e+08 0.075398351 0.033875995 -40.503914 39.754243 6691.0254 3.4518832e+08 0.073606664 0.032995263 -40.591702 39.625142 6693.6575 3.2634477e+08 0.072351721 0.031378530 -40.679491 39.496039 6696.2895 3.0649918e+08 0.071906754 0.029796085 -40.767294 39.366918 6698.9216 2.9108783e+08 0.070363715 0.031482818 -40.854206 39.237801 6701.5537 2.7854952e+08 0.068046931 0.032221816 -40.936831 39.108700 6704.1857 2.6737799e+08 0.067894324 0.036268747 -41.018374 38.982977 6706.8178 2.5651863e+08 0.067429523 0.039869664 -41.096406 38.868223 6709.4498 2.4427348e+08 0.066331399 0.040846434 -41.174700 38.752358 6712.0819 2.3223889e+08 0.063684442 0.041981981 -41.257327 38.618093 6714.7139 2.2053695e+08 0.061134860 0.047357082 -41.339954 38.484450 6717.3460 2.1174393e+08 0.058639662 0.049852867 -41.422578 38.355349 6719.9780 2.0233548e+08 0.057009781 0.050440623 -41.505203 38.226248 6722.6101 1.9332303e+08 0.056740887 0.049850957 -41.587827 38.097147 6725.2422 1.8518384e+08 0.052227479 0.041424755 -41.670452 37.968046 6727.8742 1.7691700e+08 0.051008933 0.039795680 -41.753077 37.838945 6730.5063 1.7056850e+08 0.049408130 0.041073063 -41.834095 37.709844 6733.1383 1.6288116e+08 0.047892465 0.044675328 -41.911555 37.580742 6735.7704 1.6060835e+08 0.048645366 0.050111252 -41.990954 37.451633 6738.4024 1.5412570e+08 0.050089074 0.059536708 -42.073591 37.322513 6741.0345 1.4830405e+08 0.049015596 0.065857075 -42.153959 37.193401 6743.6666 1.4398130e+08 0.043968216 0.075543982 -42.231420 37.064300 6746.2986 1.3537745e+08 0.040903035 0.075515625 -42.314436 36.925940 6748.9307 1.3075604e+08 0.037951311 0.071913155 -42.402962 36.778393 6751.5627 1.2246165e+08 0.033705510 0.073949592 -42.482553 36.645743 6754.1948 1.1697772e+08 0.031380862 0.075900247 -42.560015 36.516642 6756.8268 1.1087072e+08 0.028110921 0.076294470 -42.637476 36.383042 6759.4589 1.0869906e+08 0.028856651 0.075930692 -42.714938 36.248777 6762.0909 1.0707768e+08 0.032550152 0.077904144 -42.792398 36.119339 6764.7230 1.0360261e+08 0.035842448 0.079517922 -42.869857 35.990238 6767.3551 1.0362058e+08 0.035082450 0.081578194 -42.947319 35.861137 6769.9871 1.0119348e+08 0.029271928 0.086848443 -43.025099 35.730898 6772.6192 97732889. 0.024356973 0.093232336 -43.107725 35.583350 6775.2512 93714508. 0.019491150 0.099616229 -43.188454 35.442579 6777.8833 88498459. 0.014661600 0.10600012 -43.265915 35.313478 6780.5153 84107912. 0.0098531300 0.11238402 -43.341151 35.184377 6783.1474 84214477. 0.0050783363 0.11876791 -43.413448 35.055275 6785.7794 79440959. 0.00025037498 0.12515180 -43.490851 34.917054 6788.4115 75750376. -0.0045800683 0.13153569 -43.573477 34.769507 6791.0436 73573704. -0.0093914974 0.13791959 -43.647839 34.636717 6793.6756 70211681. -0.014238211 0.14430348 -43.720136 34.507616 6796.3077 74000509. -0.018895320 0.15068737 -43.792441 34.378498 6798.9397 72273058. -0.023695189 0.15707127 -43.864748 34.249378 6801.5718 68893380. -0.028553904 0.16345516 -43.946625 34.103169 6804.2038 65024495. -0.033453907 0.16983905 -44.026845 33.961123 6806.8359 61440721. -0.038375651 0.17622295 -44.099143 33.837184 6809.4680 61331796. -0.043122810 0.18260684 -44.172754 33.706244 6812.1000 62442019. -0.047798022 0.18899073 -44.249477 33.558697 6814.7321 61538780. -0.052585414 0.19537463 -44.329755 33.411150 6817.3641 59058962. -0.057483323 0.20175852 -44.412381 33.263603 6819.9962 58970757. -0.062226654 0.20814241 -44.480942 33.132801 6822.6282 56677315. -0.067147347 0.21452631 -44.548075 33.003700 6825.2603 55170066. -0.072028447 0.22091020 -44.624525 32.856682 6827.8923 52920717. -0.077008236 0.22729409 -44.701251 32.709134 6830.5244 49071387. -0.082217586 0.23367798 -44.777976 32.561586 6833.1565 47578072. -0.087195206 0.24006188 -44.849112 32.424785 6835.7885 50322772. -0.091614988 0.24644577 -44.916243 32.295684 6838.4206 50430056. -0.096408251 0.25282966 -44.989573 32.154665 6841.0526 49950484. -0.10133638 0.25921356 -45.066298 32.007118 6843.6847 45238475. -0.10706301 0.26559745 -45.143024 31.865188 6846.3167 42030835. -0.11283532 0.27198134 -45.219749 31.722024 6848.9488 45107069. -0.11742624 0.27836524 -45.296474 31.574476 6851.5809 43483539. -0.12331610 0.28474913 -45.369876 31.426929 6854.2129 41295467. -0.12990202 0.29113302 -45.440698 31.279381 6856.8450 38448122. -0.13776769 0.29751692 -45.516648 31.131833 6859.4770 37183722. -0.14688149 0.30390081 -45.592345 30.984286 6862.1091 38147937. -0.15898482 0.31028470 -45.663167 30.836739 6864.7411 38577831. -0.20878777 0.31666860 -45.736821 30.692024 6867.3732 36656831. -0.17793219 0.32305249 -45.813547 30.550379 6870.0052 35704882. -0.094686147 0.32943638 -45.885635 30.404098