# # 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 = 51.721030 km # Date (UTC) = 2014-01-01T09:24:10.690 # Date (julian) = 2456658.89179039 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6497.5787 7.1633040e+10 0.036506411 0.031553068 -22.158741 48.461258 6499.7157 6.3757230e+10 0.043609730 0.032197481 -22.256497 48.363502 6501.8527 5.7717118e+10 0.050870292 0.032841894 -22.349669 48.270330 6503.9897 5.3109058e+10 0.058465335 0.033486306 -22.442840 48.177158 6506.1268 4.8909200e+10 0.066395866 0.034130719 -22.546765 48.073234 6508.2638 4.4680805e+10 0.074617840 0.034775132 -22.651585 47.968414 6510.4008 4.0837794e+10 0.083282288 0.035419545 -22.748132 47.869862 6512.5378 3.7795651e+10 0.092661242 0.036063958 -22.837576 47.776690 6514.6748 3.5247681e+10 0.10274489 0.036708370 -22.927021 47.683519 6516.8119 3.2753225e+10 0.11336127 0.037352783 -23.026038 47.583961 6518.9489 3.0171072e+10 0.12441169 0.037997196 -23.126681 47.483320 6521.0859 2.7680483e+10 0.13595136 0.038641609 -23.222058 47.386191 6523.2229 2.5537217e+10 0.14469278 0.039234365 -23.311502 47.293019 6525.3599 2.3742958e+10 0.15141776 0.039741135 -23.400947 47.199847 6527.4970 2.2186238e+10 0.15752336 0.041077276 -23.487459 47.106676 6529.6340 2.0894917e+10 0.16292812 0.043245673 -23.573176 47.013504 6531.7710 1.9674102e+10 0.16772573 0.046350893 -23.660441 46.919123 6533.9080 1.8375929e+10 0.17083745 0.047905472 -23.761068 46.814304 6536.0451 1.7019404e+10 0.17170800 0.047830809 -23.861695 46.709484 6538.1821 1.5695537e+10 0.17349409 0.049245340 -23.951607 46.613036 6540.3191 1.4593844e+10 0.17325835 0.051004849 -24.037326 46.519864 6542.4561 1.3628121e+10 0.17101738 0.051175403 -24.123276 46.426278 6544.5931 1.2653477e+10 0.16917157 0.052125507 -24.215531 46.321443 6546.7302 1.1644914e+10 0.16721783 0.053065323 -24.307786 46.216607 6548.8672 1.0696735e+10 0.16525400 0.053926613 -24.395787 46.119363 6551.0042 9.9112875e+09 0.16377009 0.055237223 -24.481505 46.026191 6553.1412 9.2451917e+09 0.16276900 0.055264081 -24.567223 45.933019 6555.2782 8.6281187e+09 0.16120580 0.054619582 -24.659253 45.828577 6557.4153 8.0181669e+09 0.15949877 0.053605825 -24.751495 45.723757 6559.5523 7.4292353e+09 0.15743167 0.052324845 -24.837765 45.625723 6561.6893 6.9312937e+09 0.15520576 0.051033012 -24.919756 45.532551 6563.8263 6.5033520e+09 0.15282352 0.048972511 -25.001747 45.439379 6565.9633 6.1467436e+09 0.15092693 0.047224518 -25.083738 45.346207 6568.1004 5.8343526e+09 0.14974117 0.045679412 -25.165728 45.253036 6570.2374 5.5341985e+09 0.14842678 0.044819180 -25.249031 45.157344 6572.3744 5.2257795e+09 0.14676613 0.044015749 -25.337094 45.052508 6574.5114 4.9020956e+09 0.14465116 0.042609374 -25.425156 44.947673 6576.6484 4.6062339e+09 0.14242635 0.040625029 -25.505071 44.852535 6578.7855 4.3608355e+09 0.13948941 0.037409286 -25.583335 44.759363 6580.9225 4.1479839e+09 0.13666270 0.035668251 -25.663050 44.664465 6583.0595 3.9374050e+09 0.13440495 0.034991551 -25.751099 44.559645 6585.1965 3.7120534e+09 0.13216712 0.033813662 -25.839148 44.454825 6587.3335 3.4968465e+09 0.13036739 0.033232269 -25.919729 44.358895 6589.4706 3.3235943e+09 0.12864210 0.032112432 -25.997993 44.265723 6591.6076 3.1737491e+09 0.12649662 0.028516328 -26.075959 44.172551 6593.7446 3.0437900e+09 0.12444505 0.026409969 -26.150497 44.079380 6595.8816 2.9190090e+09 0.12189125 0.025714998 -26.225034 43.986208 6598.0186 2.7879539e+09 0.12015071 0.025398266 -26.304937 43.886745 6600.1557 2.6516913e+09 0.11954772 0.025309884 -26.392999 43.777715 6602.2927 2.5075691e+09 0.11903810 0.027266871 -26.480872 43.668905 6604.4297 2.3687585e+09 0.11791648 0.026326419 -26.555435 43.575704 6606.5667 2.2563620e+09 0.11714007 0.026485583 -26.629973 43.482533 6608.7037 2.1538692e+09 0.11429230 0.023713765 -26.706196 43.385531 6610.8408 2.0428615e+09 0.11124746 0.024806308 -26.785859 43.280711 6612.9778 1.9286888e+09 0.11005411 0.023590191 -26.865523 43.175891 6615.1148 1.8199482e+09 0.10872414 0.023255064 -26.940348 43.082064 6617.2518 1.7373421e+09 0.10718645 0.023522740 -27.014884 42.988893 6619.3888 1.6667627e+09 0.10612363 0.024619736 -27.090757 42.892686 6621.5259 1.5879121e+09 0.10480127 0.024915147 -27.170420 42.787866 6623.6629 1.5044735e+09 0.10272534 0.024737414 -27.250084 42.683046 6625.7999 1.4267298e+09 0.10116614 0.026352130 -27.325268 42.588413 6627.9369 1.3654477e+09 0.098879530 0.025678730 -27.399814 42.495230 6630.0739 1.3111050e+09 0.097001304 0.025928484 -27.475347 42.399804 6632.2110 1.2493976e+09 0.095024114 0.026057642 -27.555010 42.294984 6634.3480 1.1850633e+09 0.093584045 0.026352226 -27.634673 42.190164 6636.4850 1.1246500e+09 0.092307034 0.026361405 -27.704177 42.094752 6638.6220 1.0751508e+09 0.091417340 0.025644542 -27.771261 42.001580 6640.7590 1.0324500e+09 0.091898483 0.025177781 -27.839909 41.906960 6642.8961 9.8799857e+08 0.091671348 0.025188365 -27.919573 41.802139 6645.0331 9.3834357e+08 0.090792153 0.025467184 -27.999237 41.697319 6647.1701 8.8798845e+08 0.089712388 0.026527342 -28.069599 41.601111 6649.3071 8.4896720e+08 0.088625369 0.027210327 -28.136683 41.507940 6651.4441 8.1284663e+08 0.088171402 0.026824541 -28.204473 41.414114 6653.5812 7.8412386e+08 0.087498392 0.027822385 -28.284135 41.309294 6655.7182 7.5276976e+08 0.085775698 0.027906973 -28.363797 41.204475 6657.8552 7.1332300e+08 0.084205885 0.029893126 -28.440647 41.099655 6659.9922 6.7725374e+08 0.082716732 0.031627618 -28.516117 40.994835 6662.1292 6.4192453e+08 0.081129245 0.032971754 -28.589191 40.893344 6664.2663 6.1059310e+08 0.079822312 0.031231817 -28.656284 40.800159 6666.4033 5.8774658e+08 0.079542826 0.026987181 -28.723377 40.706975 6668.5403 5.6446410e+08 0.078294256 0.027948911 -28.792994 40.606772 6670.6773 5.3418805e+08 0.077951984 0.027014836 -28.864271 40.501952 6672.8144 5.0980032e+08 0.077387064 0.027351612 -28.934634 40.399673 6674.9514 4.8423341e+08 0.075729368 0.029757336 -29.001718 40.306502 6677.0884 4.6727472e+08 0.073297703 0.032232559 -29.068801 40.213330 6679.2254 4.5171883e+08 0.072651647 0.030081501 -29.138128 40.113928 6681.3624 4.3078034e+08 0.073631322 0.029935411 -29.209406 40.009108 6683.4995 4.1239056e+08 0.074124335 0.031920535 -29.280683 39.904288 6685.6365 3.9195786e+08 0.073857144 0.033377110 -29.351961 39.799468 6687.7735 3.7535483e+08 0.071741851 0.033911515 -29.423239 39.694648 6689.9105 3.6187081e+08 0.069680287 0.033196415 -29.488465 39.598727 6692.0475 3.4550681e+08 0.068667098 0.032710130 -29.551830 39.505543 6694.1846 3.3163051e+08 0.067777284 0.031002364 -29.615844 39.411405 6696.3216 3.1891892e+08 0.067550369 0.029809393 -29.687121 39.306586 6698.4586 3.0583824e+08 0.066497662 0.030847292 -29.758399 39.201766 6700.5956 2.9426863e+08 0.064699118 0.031109503 -29.829676 39.096946 6702.7326 2.7906939e+08 0.063892403 0.033461743 -29.900954 38.992126 6704.8697 2.6534398e+08 0.064032106 0.036604601 -29.970923 38.887307 6707.0067 2.5321645e+08 0.063558884 0.040185870 -30.038008 38.782487 6709.1437 2.4417158e+08 0.062757327 0.041041145 -30.105092 38.677667 6711.2807 2.3195552e+08 0.060822749 0.041011612 -30.172177 38.572847 6713.4177 2.1858316e+08 0.058630412 0.045197492 -30.239262 38.468026 6715.5548 2.1026500e+08 0.056548203 0.047945979 -30.302308 38.369517 6717.6918 2.0287242e+08 0.054245109 0.049831479 -30.361938 38.276346 6719.8288 1.9838904e+08 0.052534166 0.050582420 -30.421568 38.183174 6721.9658 1.9327757e+08 0.052348843 0.050594905 -30.491198 38.080002 6724.1028 1.8484498e+08 0.049798899 0.049067886 -30.562475 37.975182 6726.2399 1.7746769e+08 0.045879213 0.040953531 -30.629786 37.870355 6728.3769 1.6953563e+08 0.045026331 0.040162262 -30.692687 37.765519 6730.5139 1.6122488e+08 0.043269785 0.041083523 -30.755960 37.660685 6732.6509 1.5530392e+08 0.041690751 0.043860041 -30.823045 37.555865 6734.7879 1.4870552e+08 0.041253196 0.049306191 -30.890130 37.451045 6736.9250 1.4269171e+08 0.042670186 0.053851877 -30.957215 37.346225 6739.0620 1.3816315e+08 0.043110453 0.062902405 -31.024299 37.241405 6741.1990 1.3416837e+08 0.041528835 0.066326256 -31.090047 37.136585 6743.3360 1.2704950e+08 0.037263959 0.073314237 -31.152939 37.031765 6745.4730 1.2125900e+08 0.034468597 0.078765750 -31.215831 36.926946 6747.6101 1.1529788e+08 0.029752836 0.067151140 -31.278723 36.822126 6749.7471 1.1094078e+08 0.027525604 0.072073381 -31.341616 36.717306 6751.8841 1.0630637e+08 0.024089858 0.074085475 -31.406808 36.612486 6754.0211 1.0099106e+08 0.022394993 0.076179502 -31.473893 36.507667 6756.1581 99923464. 0.019708892 0.074573837 -31.540291 36.402847 6758.2952 97140460. 0.019146962 0.074329487 -31.603184 36.298026 6760.4322 92443726. 0.019250224 0.076885428 -31.666076 36.193206 6762.5692 88140557. 0.023335339 0.077132670 -31.725703 36.088386 6764.7062 85798435. 0.025764791 0.079517119 -31.784402 35.983566 6766.8432 82763234. 0.025759864 0.081621185 -31.844751 35.880397 6768.9803 80872048. 0.020932000 0.084383254 -31.907642 35.779771 6771.1173 77170381. 0.016625941 0.089589612 -31.970534 35.679101 6773.2543 73366600. 0.012303777 0.094772826 -32.033435 35.574274 6775.3913 72229062. 0.0083430971 0.099956039 -32.096336 35.469438 6777.5283 67631268. 0.0038640728 0.10513925 -32.161848 35.355270 6779.6654 65599498. -0.00026053432 0.11032247 -32.228934 35.235473 6781.8024 64355781. -0.0042927955 0.11550568 -32.293768 35.123718 6783.9394 63054208. -0.0083956770 0.12068889 -32.356661 35.018898 6786.0764 62869697. -0.012356771 0.12587211 -32.418917 34.914077 6788.2134 62687211. -0.016409926 0.13105532 -32.477615 34.809258 6790.3505 60690661. -0.020977480 0.13623854 -32.536314 34.704438 6792.4875 54554741. -0.026890255 0.14142175 -32.601445 34.588133 6794.6245 49301272. -0.033339904 0.14660496 -32.668530 34.468337 6796.7615 47020203. -0.039565657 0.15178818 -32.729914 34.361575 6798.8986 45689822. -0.046400825 0.15697139 -32.788615 34.260947 6801.0356 46285939. -0.053741794 0.16215461 -32.847315 34.159083 6803.1726 44775382. -0.066847609 0.16733782 -32.906014 34.054262 6805.3096 44224920. -0.11446262 0.17252103 -32.964713 33.949442 6807.4466 46376542. -0.082108259 0.17770425 -33.031043 33.830995 6811.7207 45395510. -0.010018988 0.18807067 -33.158312 33.603728