# # 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 = 42.650197 km # Date (UTC) = 2010-11-29T11:24:33.588 # Date (julian) = 2455529.97538875 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6525.3679 3.5974884e+10 0.17417222 0.039740230 80.466840 34.904573 6526.9817 3.3349892e+10 0.17723077 0.040697242 80.512044 34.818208 6528.5954 3.1038202e+10 0.17851330 0.041914849 80.556371 34.732720 6530.2092 2.8992422e+10 0.18084014 0.044121610 80.600698 34.647232 6531.8230 2.7021649e+10 0.18202579 0.046426580 80.650641 34.552806 6533.4368 2.5010062e+10 0.18230275 0.047705211 80.704918 34.451486 6535.0506 2.2926857e+10 0.18248888 0.048202356 80.759195 34.350166 6536.6644 2.1058163e+10 0.18118544 0.048384921 80.805504 34.258990 6538.2781 1.9520977e+10 0.18070427 0.049292122 80.849833 34.170336 6539.8919 1.8197110e+10 0.18036387 0.050723283 80.894162 34.081681 6541.5057 1.7056225e+10 0.17815613 0.051162531 80.940524 33.995061 6543.1195 1.5959081e+10 0.17661172 0.051413255 80.988015 33.909573 6544.7333 1.5019712e+10 0.17518045 0.052239196 81.035506 33.824085 6546.3471 1.4135217e+10 0.17283940 0.052750101 81.081465 33.737064 6547.9608 1.3367617e+10 0.17139668 0.053652756 81.125792 33.648410 6549.5746 1.2642343e+10 0.16946230 0.054551871 81.170118 33.559757 6551.1884 1.1957571e+10 0.16704794 0.055301886 81.214445 33.471103 6552.8022 1.1314171e+10 0.16515756 0.055384855 81.258772 33.382450 6554.4160 1.0606426e+10 0.16251730 0.054841109 81.303099 33.293796 6556.0298 1.0021279e+10 0.15971327 0.054008750 81.347426 33.205673 6557.6435 9.4506172e+09 0.15795457 0.053462732 81.391755 33.120185 6559.2573 9.0013848e+09 0.15537749 0.052358136 81.436085 33.034697 6560.8711 8.5524997e+09 0.15283388 0.051488891 81.480414 32.949180 6562.4849 8.0984830e+09 0.15089001 0.050418509 81.524747 32.860512 6564.0987 7.6799919e+09 0.14821438 0.048726877 81.569081 32.771843 6565.7125 7.2386651e+09 0.14635805 0.047509388 81.613414 32.683175 6567.3262 6.8389404e+09 0.14485262 0.046341339 81.655046 32.597216 6568.9400 6.4710852e+09 0.14283901 0.044907553 81.696206 32.511729 6570.5538 6.1397747e+09 0.14157337 0.044688102 81.737366 32.426243 6572.1676 5.8732307e+09 0.13989169 0.044134178 81.780720 32.338560 6573.7814 5.6162779e+09 0.13752392 0.043030444 81.825047 32.249906 6575.3952 5.3669603e+09 0.13560564 0.041978237 81.869374 32.161251 6577.0089 5.1210231e+09 0.13338610 0.040206322 81.915152 32.067759 6578.6227 4.8283672e+09 0.13079370 0.037666254 81.962193 31.970057 6580.2365 4.5409330e+09 0.12881741 0.036302182 82.009234 31.872355 6581.8503 4.2638340e+09 0.12670199 0.035339128 82.054183 31.781630 6583.4641 4.0014466e+09 0.12472384 0.034786771 82.098513 31.692976 6585.0779 3.8153195e+09 0.12277325 0.033908525 82.142842 31.604322 6586.6916 3.6508271e+09 0.12044820 0.033162355 82.185229 31.517608 6588.3054 3.4968639e+09 0.11847175 0.033277932 82.226389 31.432120 6589.9192 3.3444160e+09 0.11625078 0.031222345 82.267549 31.346632 6591.5330 3.1720039e+09 0.11375916 0.028600487 82.308708 31.259705 6593.1468 3.0417982e+09 0.11182865 0.026965761 82.349868 31.171052 6594.7606 2.9230936e+09 0.10987556 0.025755011 82.391028 31.082398 6596.3743 2.8037776e+09 0.10767607 0.025725572 82.432189 30.994682 6597.9881 2.6874740e+09 0.10627037 0.025410911 82.473351 30.909194 6599.6019 2.5587789e+09 0.10544328 0.024965932 82.514514 30.823706 6601.2157 2.4457998e+09 0.10522095 0.027147270 82.555676 30.737782 6602.8295 2.3315439e+09 0.10444745 0.026808789 82.596836 30.649128 6604.4433 2.2156161e+09 0.10354478 0.026334471 82.637995 30.560474 6606.0570 2.1186312e+09 0.10313214 0.027401454 82.679155 30.471820 6607.6708 2.0282684e+09 0.10147146 0.024382360 82.720315 30.386267 6609.2846 1.9377898e+09 0.099051126 0.023790475 82.761475 30.300780 6610.8984 1.8545109e+09 0.096708158 0.024861375 82.802635 30.215292 6612.5122 1.7795365e+09 0.095674685 0.023938071 82.841201 30.129794 6614.1260 1.7052164e+09 0.094740703 0.023853709 82.879202 30.044293 6615.7397 1.6488047e+09 0.093408742 0.023274292 82.917203 29.958793 6617.3535 1.5800518e+09 0.092621326 0.023556461 82.957300 29.871201 6618.9673 1.5120762e+09 0.091901683 0.024501231 82.998459 29.782546 6620.5811 1.4616822e+09 0.091201792 0.024954455 83.039619 29.693892 6622.1949 1.4020952e+09 0.090059166 0.024706122 83.083750 29.600670 6623.8087 1.3486039e+09 0.088384051 0.024791423 83.130794 29.502967 6625.4224 1.2860413e+09 0.087539205 0.025901709 83.177837 29.405264 6627.0362 1.2139623e+09 0.085880156 0.025330805 83.218171 29.316618 6628.6500 1.1442462e+09 0.085378243 0.025967007 83.256164 29.231131 6630.2638 1.0839843e+09 0.084606051 0.025928952 83.294157 29.145644 6631.8776 1.0362243e+09 0.083543652 0.026019910 83.332151 29.060156 6633.4914 1.0029491e+09 0.082697278 0.026238040 83.370147 28.974668 6635.1051 9.6312372e+08 0.081904947 0.026415556 83.408142 28.889180 6636.7189 9.1808012e+08 0.080954250 0.026270563 83.446137 28.802348 6638.3327 8.8107210e+08 0.080412970 0.025657147 83.484133 28.713693 6639.9465 8.4680546e+08 0.080649534 0.025289775 83.522129 28.625038 6641.5603 8.2195116e+08 0.080891312 0.025150203 83.560124 28.537227 6643.1741 7.9555331e+08 0.080534165 0.025218900 83.598117 28.451740 6644.7878 7.6380749e+08 0.079911832 0.025428755 83.636110 28.366253 6646.4016 7.2526217e+08 0.079206664 0.026128044 83.674103 28.280766 6648.0154 6.8205711e+08 0.078771922 0.026974602 83.712098 28.195278 6649.6292 6.5505377e+08 0.078182570 0.026766371 83.750094 28.109790 6651.2430 6.3104372e+08 0.077918919 0.026670374 83.788089 28.024302 6652.8568 6.1195629e+08 0.077750541 0.027486251 83.826084 27.938815 6654.4705 5.9830351e+08 0.076948443 0.027835768 83.864080 27.853327 6656.0843 5.7168906e+08 0.075657820 0.028097434 83.902075 27.767839 6657.6981 5.5150392e+08 0.074693776 0.029710901 83.940069 27.682351 6659.3119 5.3533021e+08 0.073536824 0.031769537 83.978062 27.596863 6660.9257 5.1574074e+08 0.072644529 0.032467396 84.016055 27.511375 6662.5395 5.0896684e+08 0.071775216 0.032741600 84.057486 27.418156 6664.1532 4.8120024e+08 0.071081566 0.031645364 84.100910 27.320453 6665.7670 4.5229104e+08 0.071631431 0.027290324 84.144335 27.222749 6667.3808 4.3163763e+08 0.071558628 0.027243337 84.183041 27.135657 6668.9946 4.1818865e+08 0.070796129 0.028350922 84.221040 27.050157 6670.6084 4.0450057e+08 0.071305410 0.027046779 84.259039 26.964657 6672.2222 3.8804739e+08 0.071415538 0.027008370 84.294781 26.879166 6673.8359 3.7299443e+08 0.071139303 0.028709438 84.329610 26.793678 6675.4497 3.5235727e+08 0.070067193 0.030659756 84.364438 26.708190 6677.0635 3.3386460e+08 0.069004586 0.032267926 84.401019 26.622702 6678.6773 3.0670428e+08 0.069239175 0.030483608 84.439014 26.537214 6680.2911 3.0278762e+08 0.070057518 0.029504273 84.477010 26.451727 6681.9049 3.0539765e+08 0.070648107 0.030351556 84.515720 26.361415 6683.5186 3.0002600e+08 0.071143902 0.031948665 84.555525 26.263712 6685.1324 2.9000382e+08 0.071313726 0.032844717 84.595329 26.166010 6686.7462 2.7543479e+08 0.070520796 0.034195243 84.631992 26.076020 6688.3600 2.6068546e+08 0.069046795 0.033868290 84.666821 25.990533 6689.9738 2.5207140e+08 0.068122404 0.033139465 84.701650 25.905045 6691.5876 2.3744170e+08 0.067853612 0.032862636 84.737975 25.819557 6693.2013 2.2457337e+08 0.067803299 0.031535014 84.775968 25.734069 6694.8151 2.2390279e+08 0.067455051 0.030118577 84.813961 25.648581 6696.4289 2.2060678e+08 0.067336078 0.029853991 84.850958 25.563094 6698.0427 2.1849939e+08 0.066847484 0.030276425 84.885787 25.477606 6699.6565 2.0954462e+08 0.066054959 0.030984688 84.920615 25.392118 6701.2703 1.9500658e+08 0.065341202 0.031806001 84.956222 25.304720 6702.8840 1.8526626e+08 0.065768507 0.033582647 84.996027 25.207017 6704.4978 1.7182900e+08 0.066656404 0.036422015 85.035832 25.109315 6706.1116 1.6477747e+08 0.067018875 0.038640661 85.073682 25.016412 6707.7254 1.5894216e+08 0.067134479 0.040082914 85.108510 24.930924 6709.3392 1.5636912e+08 0.066574694 0.040916807 85.143339 24.845436 6710.9530 1.5814418e+08 0.065071971 0.040683026 85.178168 24.759948 6712.5667 1.4960950e+08 0.064010130 0.042882221 85.212996 24.674461 6714.1805 1.4244014e+08 0.062721975 0.047316981 85.247825 24.588973 6715.7943 1.4062061e+08 0.061453164 0.048190991 85.283032 24.502554 6717.4081 1.3444489e+08 0.060150193 0.049849026 85.322837 24.404852 6719.0219 1.3096227e+08 0.058342399 0.051349049 85.362642 24.307149 6720.6357 1.2268354e+08 0.059171287 0.050346113 85.399900 24.214257 6722.2494 1.1686889e+08 0.059104148 0.050296821 85.431562 24.131935 6723.8632 1.1302882e+08 0.057550715 0.049850383 85.463224 24.049614 6725.4770 1.0871947e+08 0.054131059 0.041278051 85.495375 23.966801 6727.0908 1.0684645e+08 0.052778074 0.040839417 85.530209 23.881301 6728.7046 99550110. 0.052963165 0.040626723 85.565042 23.795800 6730.3184 94392442. 0.051822872 0.040815420 85.599876 23.710300 6731.9321 91407153. 0.050444208 0.043605173 85.639657 23.612657 6733.5459 94862790. 0.049002068 0.046888332 85.679455 23.514971 6735.1597 97620479. 0.049003274 0.049462982 85.717363 23.420855 6736.7735 94705781. 0.050243972 0.053279264 85.749029 23.338521 6738.3873 87515116. 0.051358835 0.059453258 85.780695 23.256187 6740.0011 79579625. 0.051702333 0.064052182 85.812969 23.172706 6741.6148 78817463. 0.050068532 0.067512276 85.852774 23.075004 6743.2286 76046808. 0.047187965 0.072589788 85.892579 22.977301 6744.8424 80647886. 0.044257479 0.078444999 85.929850 22.883399 6746.4562 79613925. 0.042195306 0.073683454 85.961512 22.797912 6748.0700 79379634. 0.040502292 0.067385080 85.993173 22.712424 6749.6838 74539849. 0.039894754 0.072090717 86.025527 22.625622 6751.2975 64925731. 0.040687320 0.073837476 86.061715 22.531539 6752.9113 65267597. 0.040524355 0.073079894 86.097903 22.437455 6754.5251 58426069. 0.044157767 0.075369019 86.133562 22.346718 6756.1389 54036699. 0.049710058 0.074524317 86.168391 22.261230 6757.7527 50500490. 0.063475562 0.074455865 86.203219 22.175742 6759.3665 42581771. 0.15412079 0.075908389 86.238362 22.087433 6760.9802 45405756. 0.085765503 0.077930562 86.274547 21.989731 6762.5940 52809374. -0.032034348 0.077092622 86.310732 21.892028