# # 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 = 44.111684 km # Date (UTC) = 2013-01-10T10:10:21.569 # Date (julian) = 2456302.92386076 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6499.3062 1.0012785e+11 0.041878036 0.032073983 -34.201731 48.532779 6501.1164 8.9256134e+10 0.048460621 0.032619844 -34.286982 48.443977 6502.9266 8.0079893e+10 0.055262264 0.033165704 -34.372223 48.352592 6504.7368 7.2662411e+10 0.062416905 0.033711565 -34.457460 48.260251 6506.5470 6.6504281e+10 0.069945221 0.034257425 -34.542697 48.167910 6508.3571 6.0669088e+10 0.077759149 0.034803286 -34.639071 48.063507 6510.1673 5.4903655e+10 0.085800870 0.035349146 -34.736488 47.957973 6511.9775 4.9785444e+10 0.094225689 0.035895007 -34.828416 47.858384 6513.7877 4.5598168e+10 0.10319111 0.036440867 -34.913653 47.766043 6515.5979 4.2124255e+10 0.11270213 0.036986728 -34.998890 47.673701 6517.4081 3.8942111e+10 0.12262422 0.037532588 -35.081872 47.583615 6519.2183 3.5827673e+10 0.13283946 0.038078449 -35.163558 47.494826 6521.0285 3.2952908e+10 0.14339376 0.038624309 -35.245245 47.406036 6522.8387 3.0390704e+10 0.15198476 0.039136884 -35.326932 47.314337 6524.6489 2.8146194e+10 0.15847061 0.039657497 -35.408619 47.221997 6526.4591 2.6174799e+10 0.16327912 0.040149435 -35.490275 47.129656 6528.2693 2.4460451e+10 0.16843582 0.041656145 -35.568427 47.037315 6530.0795 2.2991757e+10 0.17343966 0.043940037 -35.646561 46.944973 6531.8897 2.1550431e+10 0.17660323 0.046523690 -35.727558 46.850149 6533.6999 2.0009537e+10 0.17779955 0.047817035 -35.820916 46.744615 6535.5101 1.8396193e+10 0.17761456 0.048003006 -35.914273 46.639081 6537.3203 1.6885016e+10 0.17740243 0.048836245 -35.996603 46.543104 6539.1305 1.5618684e+10 0.17607405 0.049801622 -36.074738 46.450762 6540.9407 1.4552716e+10 0.17469881 0.051298523 -36.152874 46.358421 6542.7509 1.3592545e+10 0.17331697 0.051287328 -36.231009 46.266080 6544.5611 1.2678951e+10 0.17186118 0.052099537 -36.309144 46.173740 6546.3713 1.1853218e+10 0.17001967 0.052770059 -36.386948 46.081730 6548.1815 1.1107023e+10 0.16896652 0.053721852 -36.461530 45.992941 6549.9917 1.0422887e+10 0.16814451 0.054976914 -36.536113 45.904152 6551.8019 9.8325965e+09 0.16663970 0.055517234 -36.611685 45.814373 6553.6121 9.2858873e+09 0.16491578 0.055027368 -36.689832 45.722019 6555.4223 8.7807859e+09 0.16347640 0.054498525 -36.767979 45.629664 6557.2325 8.3272934e+09 0.16184841 0.053720372 -36.844478 45.537316 6559.0427 7.8997250e+09 0.15937738 0.052382362 -36.919061 45.444974 6560.8529 7.5266335e+09 0.15699326 0.051505308 -36.993643 45.352633 6562.6631 7.1556083e+09 0.15491900 0.050248939 -37.075117 45.251760 6564.4733 6.7409192e+09 0.15243077 0.048557098 -37.160356 45.146226 6566.2835 6.3210181e+09 0.15017195 0.047022510 -37.242996 45.043106 6568.0937 5.9372378e+09 0.14847665 0.045685533 -37.314028 44.950764 6569.9039 5.6182125e+09 0.14662480 0.044911254 -37.385060 44.858422 6571.7141 5.3690246e+09 0.14430609 0.044308242 -37.457396 44.766081 6573.5243 5.1403081e+09 0.14184885 0.043236750 -37.531978 44.673741 6575.3345 4.9142106e+09 0.13989495 0.042039110 -37.606561 44.581401 6577.1447 4.6887199e+09 0.13793008 0.039993102 -37.679185 44.489059 6578.9549 4.4732203e+09 0.13550879 0.037141737 -37.750217 44.396718 6580.7651 4.2691409e+09 0.13372864 0.035813704 -37.821249 44.304376 6582.5753 4.0815534e+09 0.13222451 0.035137244 -37.892281 44.212035 6584.3855 3.9088423e+09 0.13036704 0.034305525 -37.963312 44.119695 6586.1957 3.7380092e+09 0.12853627 0.033168767 -38.034344 44.027354 6588.0059 3.5743949e+09 0.12726936 0.033377968 -38.102106 43.935013 6589.8161 3.4187626e+09 0.12535787 0.031426955 -38.169586 43.842671 6591.6263 3.2635758e+09 0.12302837 0.028495232 -38.237438 43.750329 6593.4365 3.1168255e+09 0.12096016 0.026696433 -38.308469 43.657989 6595.2467 2.9749056e+09 0.11867649 0.025649152 -38.379501 43.565648 6597.0569 2.8383227e+09 0.11630507 0.025704781 -38.449506 43.473308 6598.8671 2.7091268e+09 0.11434224 0.024993196 -38.516986 43.380968 6600.6773 2.5886674e+09 0.11397827 0.026382210 -38.584465 43.288627 6602.4875 2.4799403e+09 0.11284903 0.027100650 -38.651950 43.196279 6604.2977 2.3823588e+09 0.11118585 0.026248019 -38.719441 43.103924 6606.1079 2.2890111e+09 0.11025185 0.027310139 -38.786932 43.011568 6607.9181 2.1834062e+09 0.10786413 0.023894171 -38.860752 42.910551 6609.7283 2.0687081e+09 0.10483806 0.023922259 -38.937860 42.805034 6611.5385 1.9490671e+09 0.10215378 0.024615079 -39.012412 42.702763 6613.3487 1.8414720e+09 0.10111628 0.023701513 -39.076350 42.613960 6615.1589 1.7492928e+09 0.099982290 0.023256419 -39.140288 42.525157 6616.9691 1.6724304e+09 0.098890828 0.023434392 -39.205568 42.435014 6618.7793 1.5984426e+09 0.098471165 0.024359223 -39.273047 42.342672 6620.5894 1.5275183e+09 0.098017163 0.024957147 -39.340526 42.250331 6622.3996 1.4569272e+09 0.097024080 0.024651620 -39.406006 42.157990 6624.2098 1.3874896e+09 0.095579058 0.024974639 -39.469934 42.065649 6626.0200 1.3312228e+09 0.094697012 0.026565366 -39.533863 41.973309 6627.8302 1.2773976e+09 0.093173083 0.025637520 -39.597791 41.880967 6629.6404 1.2301690e+09 0.092037981 0.025993311 -39.661720 41.788626 6631.4506 1.1823787e+09 0.090463901 0.025976542 -39.725648 41.696284 6633.2608 1.1256499e+09 0.089376136 0.026197793 -39.789577 41.603944 6635.0710 1.0747627e+09 0.088156697 0.026410440 -39.853505 41.511603 6636.8812 1.0275163e+09 0.086759479 0.026207533 -39.917433 41.419263 6638.6914 9.8631896e+08 0.085737901 0.025641518 -39.981362 41.326921 6640.5016 9.5594459e+08 0.085904414 0.025209277 -40.045291 41.234578 6642.3118 9.2231640e+08 0.085588987 0.025164457 -40.110745 41.138270 6644.1220 8.8310453e+08 0.084453388 0.025356795 -40.179748 41.032736 6645.9322 8.3642748e+08 0.083490945 0.025888398 -40.248751 40.927202 6647.7424 7.8712431e+08 0.082563143 0.026828670 -40.310534 40.832711 6649.5526 7.4642590e+08 0.081544112 0.026871924 -40.370911 40.740371 6651.3628 7.1609048e+08 0.080903072 0.026762216 -40.431289 40.648031 6653.1730 6.8738872e+08 0.080413482 0.027613999 -40.491665 40.555689 6654.9832 6.6099510e+08 0.079325859 0.027617365 -40.552041 40.463348 6656.7934 6.3392226e+08 0.077720337 0.028719795 -40.612417 40.371006 6658.6036 6.0975887e+08 0.076569093 0.031131602 -40.672795 40.278666 6660.4138 5.8933438e+08 0.075537742 0.032002134 -40.733172 40.186326 6662.2240 5.6413253e+08 0.074436298 0.032918587 -40.793553 40.093979 6664.0342 5.4259651e+08 0.073302891 0.032080915 -40.853938 40.001623 6665.8444 5.1978479e+08 0.073515369 0.027163537 -40.914324 39.909267 6667.6546 4.9970379e+08 0.072996415 0.027343906 -40.974705 39.816920 6669.4648 4.8462343e+08 0.072137316 0.027878315 -41.035082 39.724580 6671.2750 4.6898390e+08 0.072101761 0.026869267 -41.095459 39.632240 6673.0852 4.5163746e+08 0.071747052 0.027586643 -41.159304 39.532964 6674.8954 4.2895812e+08 0.070478900 0.029710120 -41.224248 39.431488 6676.7056 4.0463335e+08 0.068585132 0.032168478 -41.286793 39.332712 6678.5158 3.8272595e+08 0.068022430 0.030591627 -41.343618 39.240370 6680.3260 3.6779363e+08 0.068537677 0.029511812 -41.400443 39.148029 6682.1362 3.5345710e+08 0.069096889 0.030528600 -41.457269 39.055688 6683.9464 3.4183062e+08 0.069205348 0.032575529 -41.514094 38.963348 6685.7566 3.3175452e+08 0.068760719 0.033503984 -41.570919 38.871007 6687.5668 3.2104931e+08 0.066819911 0.034026796 -41.627744 38.778667 6689.3770 3.1245798e+08 0.064608242 0.033676675 -41.684570 38.686326 6691.1872 3.0061007e+08 0.063805629 0.032957099 -41.741395 38.593985 6692.9974 2.8456508e+08 0.063232234 0.031607126 -41.805110 38.490448 6694.8076 2.7457972e+08 0.062740740 0.030129157 -41.870054 38.384912 6696.6178 2.6471706e+08 0.062531698 0.029932461 -41.931873 38.284456 6698.4280 2.5571527e+08 0.061832452 0.030805268 -41.988698 38.192115 6700.2382 2.4574230e+08 0.060649873 0.030844382 -42.045523 38.099775 6702.0484 2.3014445e+08 0.059522852 0.032915359 -42.100327 38.009456 6703.8586 2.1809086e+08 0.060092527 0.035823662 -42.153601 37.920667 6705.6688 2.0954011e+08 0.060362243 0.037857549 -42.206875 37.831878 6707.4790 2.0525766e+08 0.060205456 0.040118214 -42.262826 37.740411 6709.2892 2.0240400e+08 0.059657301 0.040948617 -42.319651 37.648069 6711.0994 1.9575474e+08 0.058329636 0.040805286 -42.376477 37.555726 6712.9096 1.8381882e+08 0.056936258 0.043518720 -42.437109 37.451011 6714.7198 1.7375925e+08 0.055428128 0.047357520 -42.497994 37.345477 6716.5300 1.6621517e+08 0.054028227 0.049181947 -42.555268 37.246200 6718.3402 1.6298935e+08 0.052345634 0.050342190 -42.608543 37.153859 6720.1504 1.5992546e+08 0.051884483 0.050402345 -42.661817 37.061517 6721.9606 1.5174515e+08 0.052158401 0.050593320 -42.720105 36.960486 6723.7708 1.4499156e+08 0.050695780 0.049798808 -42.780991 36.854952 6725.5810 1.3582572e+08 0.047293878 0.041213125 -42.840393 36.752681 6727.3912 1.2912727e+08 0.046467455 0.040439258 -42.893674 36.663878 6729.2014 1.2221282e+08 0.046263689 0.040911221 -42.946955 36.575076 6731.0116 1.1813999e+08 0.044906766 0.041773012 -42.998884 36.484929 6732.8217 1.1641700e+08 0.043999435 0.043891490 -43.048606 36.392587 6734.6319 1.1154466e+08 0.043965596 0.049315577 -43.098328 36.300244 6736.4421 1.0806854e+08 0.045655313 0.052026562 -43.154349 36.200460 6738.2523 98779964. 0.047006286 0.058710358 -43.215235 36.094926 6740.0625 94720741. 0.047007552 0.064157204 -43.274998 35.990718 6741.8727 89688675. 0.045479436 0.068247798 -43.324720 35.898378 6743.6829 85753978. 0.041828892 0.075654526 -43.374442 35.806038 6745.4931 83919062. 0.040433495 0.078774197 -43.426188 35.711095 6747.3033 80303905. 0.036289141 0.067256734 -43.483014 35.609619 6749.1135 79890716. 0.036241484 0.072246848 -43.539840 35.508144 6750.9237 75378276. 0.034074401 0.073581441 -43.593749 35.414169 6752.7339 71931892. 0.031766962 0.073285182 -43.647023 35.321827 6754.5441 69208411. 0.030839108 0.075338444 -43.700331 35.229360 6756.3543 65212970. 0.029163925 0.075078645 -43.757143 35.123878 6758.1645 63408683. 0.029631854 0.074053234 -43.813970 35.018343 6759.9747 61724333. 0.030961030 0.076055172 -43.865022 34.921883 6761.7849 60530047. 0.035055648 0.078033075 -43.911193 34.833094 6763.5951 60527334. 0.040115125 0.078250217 -43.957363 34.744305 6765.4053 56282595. 0.055620015 0.079605185 -44.011273 34.643353 6767.2155 55911569. 0.043386604 0.081734442 -44.068099 34.537817 6769.0257 56598421. 0.016087691 0.084516633 -44.124925 34.432282