# # 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 = 55.000131 km # Date (UTC) = 2013-01-10T10:35:28.689 # Date (julian) = 2456302.94130427 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6489.1938 1.0730896e+11 0.018736090 0.029024623 93.226666 41.020005 6491.3207 8.9098009e+10 0.025687559 0.029665993 93.307749 40.895727 6493.4476 7.4924042e+10 0.032170967 0.030307363 93.393596 40.762187 6495.5746 6.4595396e+10 0.038042202 0.030948733 93.476428 40.638235 6497.7015 5.6984193e+10 0.043308402 0.031590103 93.555713 40.525563 6499.8284 5.1357462e+10 0.048128897 0.032231473 93.634472 40.412892 6501.9554 4.7060339e+10 0.052796887 0.032872843 93.705415 40.300223 6504.0823 4.3259491e+10 0.057612238 0.033514213 93.776358 40.187554 6506.2092 4.0056171e+10 0.062982842 0.034155584 93.850082 40.074883 6508.3362 3.7342848e+10 0.069305994 0.034796954 93.925196 39.962211 6510.4631 3.4856315e+10 0.076868908 0.035438324 94.003212 39.845188 6512.5900 3.2249703e+10 0.085697901 0.036079694 94.089059 39.716418 6514.7169 2.9622972e+10 0.095968309 0.036721064 94.172318 39.590443 6516.8439 2.7151216e+10 0.10791904 0.037362434 94.243258 39.477772 6518.9708 2.5081099e+10 0.12184046 0.038003804 94.314198 39.365100 6521.0977 2.3323527e+10 0.13755516 0.038645174 94.385147 39.252416 6523.2247 2.1666998e+10 0.15103674 0.039234794 94.456097 39.139728 6525.3516 2.0121191e+10 0.16257322 0.039742089 94.527044 39.025456 6527.4785 1.8800132e+10 0.17198976 0.041063883 94.597984 38.908613 6529.6055 1.7516803e+10 0.17803393 0.043200215 94.668927 38.791766 6531.7324 1.6168846e+10 0.18109332 0.046294668 94.749847 38.663180 6533.8593 1.4819436e+10 0.18118799 0.047884768 94.830924 38.534410 6535.9862 1.3542859e+10 0.17936794 0.047796470 94.899294 38.419938 6538.1132 1.2504777e+10 0.17952661 0.049211789 94.966063 38.307267 6540.2401 1.1644502e+10 0.17856636 0.050967532 95.034884 38.194595 6542.3670 1.0854899e+10 0.17613124 0.051141583 95.105824 38.081924 6544.4940 1.0136356e+10 0.17424071 0.052045058 95.176367 37.969253 6546.6209 9.4736892e+09 0.17227149 0.052975419 95.243136 37.856582 6548.7478 8.8813099e+09 0.17033970 0.053890971 95.309906 37.743911 6550.8748 8.3412112e+09 0.16866238 0.055204390 95.376673 37.631240 6553.0017 7.8511817e+09 0.16730786 0.055334222 95.443439 37.518568 6555.1286 7.4072981e+09 0.16536661 0.054745301 95.510207 37.405897 6557.2555 6.9932111e+09 0.16300565 0.053705933 95.576976 37.293226 6559.3825 6.6185602e+09 0.16010056 0.052344011 95.643745 37.180555 6561.5094 6.2766551e+09 0.15698338 0.051121659 95.710512 37.067885 6563.6363 5.9597581e+09 0.15375483 0.049192279 95.777279 36.955215 6565.7633 5.6372458e+09 0.15084851 0.047451705 95.848912 36.834336 6567.8902 5.2836990e+09 0.14859247 0.045864509 95.925221 36.705566 6570.0171 4.9444277e+09 0.14631970 0.044910417 95.995864 36.583448 6572.1441 4.6330848e+09 0.14346310 0.044147662 96.058460 36.470777 6574.2710 4.3791943e+09 0.14004132 0.042724854 96.121126 36.358106 6576.3979 4.1638133e+09 0.13706144 0.040913390 96.187902 36.245417 6578.5248 3.9459267e+09 0.13423247 0.037820830 96.254679 36.132729 6580.6518 3.7468137e+09 0.13194933 0.035918423 96.318859 36.020052 6582.7787 3.5495627e+09 0.13022558 0.035081888 96.381455 35.907381 6584.9056 3.3714749e+09 0.12840880 0.034022180 96.444050 35.794710 6587.0326 3.2018181e+09 0.12653238 0.033165584 96.506646 35.682038 6589.1595 3.0355751e+09 0.12469038 0.032729563 96.569242 35.569367 6591.2864 2.8783319e+09 0.12236468 0.028878718 96.631837 35.456696 6593.4134 2.7244624e+09 0.12034146 0.026717930 96.694433 35.344025 6595.5403 2.5901486e+09 0.11779512 0.025679600 96.757027 35.231354 6597.6672 2.4641500e+09 0.11564123 0.025512181 96.819620 35.118682 6599.7941 2.3457032e+09 0.11455086 0.024977494 96.882065 35.006011 6601.9211 2.2416659e+09 0.11395549 0.027479462 96.940486 34.893342 6604.0480 2.1419630e+09 0.11228779 0.026099778 96.998908 34.780672 6606.1749 2.0564976e+09 0.11162543 0.027189619 97.059997 34.668002 6608.3019 1.9835907e+09 0.10885281 0.023724390 97.122592 34.555331 6610.4288 1.9023426e+09 0.10558130 0.024412678 97.186201 34.438753 6612.5557 1.8099734e+09 0.10360492 0.023905539 97.252970 34.309983 6614.6827 1.7069274e+09 0.10232141 0.023470173 97.318521 34.184171 6616.8096 1.6084630e+09 0.10069690 0.023409363 97.376943 34.075672 6618.9365 1.5265194e+09 0.099648316 0.024477972 97.435365 33.967173 6621.0634 1.4625016e+09 0.098495353 0.025068419 97.496915 33.855547 6623.1904 1.4013576e+09 0.096807984 0.024562355 97.559511 33.742876 6625.3173 1.3372531e+09 0.095566530 0.025776239 97.620635 33.630199 6627.4442 1.2784993e+09 0.093912158 0.025488410 97.679066 33.517513 6629.5712 1.2188392e+09 0.093088833 0.026005837 97.737496 33.404827 6631.6981 1.1668882e+09 0.091653351 0.026001678 97.791926 33.292155 6633.8250 1.1240110e+09 0.090423406 0.026296293 97.846177 33.179484 6635.9520 1.0816539e+09 0.089122411 0.026542547 97.902767 33.066813 6638.0789 1.0381065e+09 0.088301069 0.025668206 97.961188 32.954142 6640.2058 9.9604048e+08 0.088394974 0.025245471 98.019610 32.842157 6642.3327 9.5079208e+08 0.088495153 0.025165313 98.078032 32.733658 6644.4597 9.1332150e+08 0.087553011 0.025393287 98.136454 32.625158 6646.5866 8.8410523e+08 0.086456629 0.026223790 98.191670 32.513456 6648.7135 8.5545241e+08 0.085268553 0.027441924 98.245918 32.400786 6650.8405 8.2668406e+08 0.084750629 0.026447642 98.304820 32.282132 6652.9674 7.8873188e+08 0.084391363 0.027516689 98.371589 32.153362 6655.0943 7.4791522e+08 0.083185794 0.027649189 98.434916 32.029019 6657.2212 7.1168018e+08 0.081336818 0.029157754 98.489167 31.916348 6659.3482 6.8103555e+08 0.079798797 0.031761968 98.543418 31.803677 6661.4751 6.5356033e+08 0.078362583 0.032776933 98.597666 31.694672 6663.6020 6.2916452e+08 0.076964407 0.032316373 98.651914 31.586174 6665.7290 6.0344242e+08 0.076682955 0.027352688 98.706162 31.475663 6667.8559 5.8019354e+08 0.075929391 0.027417844 98.760410 31.362992 6669.9828 5.5766923e+08 0.075279616 0.027346268 98.814658 31.250321 6672.1098 5.3918659e+08 0.075036306 0.026943218 98.868909 31.137650 6674.2367 5.2420107e+08 0.074195730 0.029154454 98.923160 31.024979 6676.3636 5.0634790e+08 0.072115279 0.031948075 98.982753 30.904496 6678.4905 4.8382184e+08 0.071442781 0.030608513 99.044752 30.780496 6680.6175 4.5955806e+08 0.072279754 0.029574756 99.102156 30.663211 6682.7444 4.3962998e+08 0.073088801 0.030993300 99.156404 30.550540 6684.8713 4.2225042e+08 0.073143277 0.032698309 99.210654 30.438686 6686.9983 4.0827036e+08 0.071634505 0.034341893 99.264914 30.330172 6689.1252 3.9225460e+08 0.069030216 0.033903325 99.319173 30.221657 6691.2521 3.8079132e+08 0.068200775 0.032941777 99.370082 30.109816 6693.3791 3.6777505e+08 0.067406736 0.031474048 99.420156 29.997145 6695.5060 3.5119026e+08 0.067138425 0.029766529 99.475050 29.879896 6697.6329 3.3855389e+08 0.066529602 0.030171362 99.537052 29.755896 6699.7598 3.2411052e+08 0.065161234 0.030889309 99.595389 29.635377 6701.8868 3.1263820e+08 0.063488301 0.032710603 99.645463 29.522706 6704.0137 3.0020327e+08 0.063844726 0.036184285 99.695537 29.410035 6706.1406 2.8293629e+08 0.063979646 0.038691176 99.745614 29.301166 6708.2676 2.7050879e+08 0.063675247 0.040334951 99.795691 29.192668 6710.3945 2.6172967e+08 0.062373121 0.040573713 99.847914 29.082023 6712.5214 2.5886344e+08 0.060270226 0.042798079 99.902162 28.969352 6714.6484 2.5649337e+08 0.058197495 0.047352152 99.956763 28.855341 6716.7753 2.4721568e+08 0.056350298 0.049543290 100.01400 28.731341 6718.9022 2.3549333e+08 0.054169213 0.051217552 100.07107 28.607584 6721.0291 2.2200157e+08 0.054758655 0.050312682 100.12115 28.494913 6723.1561 2.1050871e+08 0.053844050 0.049455992 100.17123 28.382242 6725.2830 2.0166725e+08 0.049854194 0.041399238 100.22578 28.262489 6727.4099 1.9064128e+08 0.048746798 0.040414230 100.28300 28.138489 6729.5369 1.8326419e+08 0.048103269 0.040687591 100.33425 28.020474 6731.6638 1.7833309e+08 0.046421495 0.043071108 100.38015 27.907803 6733.7907 1.7356262e+08 0.045370393 0.048217406 100.42661 27.795683 6735.9177 1.7099627e+08 0.046782384 0.050267595 100.47668 27.687184 6738.0446 1.6256915e+08 0.048110752 0.057566574 100.52676 27.578685 6740.1715 1.5109838e+08 0.047903778 0.064343372 100.58210 27.458784 6742.2984 1.4355905e+08 0.045392286 0.069337978 100.63933 27.334785 6744.4254 1.3855543e+08 0.041113752 0.078122432 100.68933 27.218023 6746.5523 1.3474706e+08 0.037970595 0.072566069 100.73523 27.105352 6748.6792 1.3268757e+08 0.036101834 0.070590399 100.78387 26.989934 6750.8062 1.2582021e+08 0.033196733 0.073380697 100.84111 26.865933 6752.9331 1.2064804e+08 0.030312147 0.073054707 100.89669 26.744192 6755.0600 1.1886184e+08 0.028349908 0.074579027 100.94259 26.635693 6757.1870 1.1532589e+08 0.025752647 0.076172686 100.98849 26.527195 6759.3139 1.1079584e+08 0.026528376 0.075895701 101.04289 26.407080 6761.4408 1.0609400e+08 0.028079901 0.078004645 101.10012 26.283079 6763.5677 1.0091608e+08 0.032179940 0.078166855 101.14996 26.166461 6765.6947 97421202. 0.033955869 0.079658009 101.19587 26.053774 6767.8216 97007415. 0.031544060 0.081055777 101.24346 25.938183 6769.9485 94662528. 0.026745720 0.086754884 101.29592 25.814183 6772.0755 91442149. 0.022669446 0.091913625 101.34838 25.690183 6774.2024 88691501. 0.018589872 0.097072365 101.40084 25.566183 6776.3293 84111713. 0.014445129 0.10223111 101.45289 25.443161 6778.4563 83048712. 0.010385639 0.10738985 101.49879 25.334663 6780.5832 81528947. 0.0063022895 0.11254859 101.54470 25.226165 6782.7101 78197641. 0.0021138581 0.11770733 101.59497 25.107332 6784.8370 74742068. -0.0021442816 0.12286607 101.64744 24.983331 6786.9640 70386949. -0.0065682219 0.12802481 101.69990 24.859330 6789.0909 67775293. -0.011031705 0.13318355 101.75236 24.735330 6791.2178 66326398. -0.015629863 0.13834229 101.80482 24.611330 6793.3448 60925851. -0.021129224 0.14350103 101.85728 24.487329 6795.4717 59226041. -0.027120851 0.14865977 101.90571 24.369164 6797.5986 57401003. -0.035962311 0.15381851 101.94743 24.260666 6799.7256 55228204. -0.069414884 0.15897725 101.98916 24.152168 6801.8525 54094980. -0.048423569 0.16413599 102.04141 24.028478 6803.9794 48942272. 0.0037405601 0.16929473 102.09387 23.904477