# # 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 = 55.535380 km # Date (UTC) = 2013-11-16T09:02:18.357 # Date (julian) = 2456612.87660136 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.2492 5.1382221e+10 0.056765893 0.033262994 -5.1887999 64.252598 6505.2538 4.7603017e+10 0.065307717 0.033867484 -5.4225407 64.158203 6507.2584 4.4038477e+10 0.074108495 0.034471975 -5.6562815 64.063808 6509.2631 4.0465107e+10 0.083105587 0.035076466 -5.9082986 63.955948 6511.2677 3.6942909e+10 0.092277665 0.035680957 -6.1705145 63.840575 6513.2723 3.3854627e+10 0.10176244 0.036285447 -6.4051927 63.740619 6515.2770 3.1215445e+10 0.11162371 0.036889938 -6.6299428 63.646223 6517.2816 2.9078179e+10 0.12196336 0.037494429 -6.8501055 63.549534 6519.2862 2.7180199e+10 0.13269244 0.038098920 -7.0658663 63.450645 6521.2909 2.5277664e+10 0.14364883 0.038703410 -7.2919002 63.347047 6523.2955 2.3363171e+10 0.15111850 0.039252348 -7.5436274 63.231671 6525.3001 2.1448377e+10 0.15685432 0.039747963 -7.7817303 63.122540 6527.3047 1.9672709e+10 0.16165521 0.040937718 -7.9974906 63.023649 6529.3094 1.8191828e+10 0.16522127 0.042728590 -8.2118601 62.924762 6531.3140 1.6902005e+10 0.16853038 0.045685715 -8.4185955 62.825889 6533.3186 1.5706729e+10 0.17180485 0.047654996 -8.6253309 62.727017 6535.3233 1.4597583e+10 0.17319296 0.048084067 -8.8320985 62.628128 6537.3279 1.3575343e+10 0.17427628 0.048839813 -9.0388686 62.529237 6539.3325 1.2682771e+10 0.17440398 0.050046137 -9.2393069 62.427181 6541.3372 1.1921620e+10 0.17341875 0.051217193 -9.4370875 62.323796 6543.3418 1.1192005e+10 0.17195018 0.051471595 -9.6506822 62.214659 6545.3464 1.0458143e+10 0.17039753 0.052458670 -9.8814319 62.099283 6547.3510 9.7603676e+09 0.16882882 0.053420859 -10.093296 61.990777 6549.3557 9.1431624e+09 0.16700686 0.054328736 -10.291076 61.887392 6551.3603 8.6413524e+09 0.16557806 0.055362222 -10.485726 61.784007 6553.3649 8.1930867e+09 0.16420574 0.055151622 -10.674517 61.680622 6555.3696 7.7676188e+09 0.16266739 0.054542847 -10.863308 61.577236 6557.3742 7.3745363e+09 0.16101865 0.053631565 -11.052098 61.473852 6559.3788 7.0075971e+09 0.15879043 0.052344424 -11.240888 61.370467 6561.3834 6.6624387e+09 0.15649130 0.051183727 -11.425639 61.267082 6563.3881 6.3232949e+09 0.15441623 0.049479452 -11.609934 61.163696 6565.3927 6.0018064e+09 0.15260531 0.047872474 -11.794229 61.060312 6567.3973 5.6989085e+09 0.15108831 0.046281230 -11.978524 60.956927 6569.4020 5.4118681e+09 0.14949118 0.044878586 -12.160799 60.853541 6571.4066 5.1425526e+09 0.14811552 0.044392226 -12.340599 60.750155 6573.4112 4.8909360e+09 0.14629480 0.043327484 -12.519389 60.646768 6575.4159 4.6524162e+09 0.14431375 0.041957475 -12.694695 60.543383 6577.4205 4.4277355e+09 0.14199346 0.039559894 -12.869989 60.439986 6579.4251 4.2357684e+09 0.13915030 0.036836794 -13.040811 60.332119 6581.4297 4.0496274e+09 0.13651432 0.035466477 -13.211621 60.224240 6583.4344 3.8496695e+09 0.13427218 0.034801807 -13.404508 60.106483 6585.4390 3.6344131e+09 0.13224812 0.033619801 -13.603792 59.985864 6587.4436 3.4146950e+09 0.13075060 0.033256661 -13.778347 59.876308 6589.4483 3.2275871e+09 0.12919905 0.032156668 -13.949158 59.768427 6591.4529 3.0728553e+09 0.12719772 0.028690876 -14.114180 59.660547 6593.4575 2.9293640e+09 0.12545066 0.026676866 -14.276000 59.552668 6595.4622 2.7984491e+09 0.12330798 0.025671497 -14.437820 59.446672 6597.4668 2.6769744e+09 0.12140770 0.025575429 -14.599640 59.343285 6599.4714 2.5640968e+09 0.12025136 0.024958083 -14.761460 59.239025 6601.4760 2.4578057e+09 0.12013920 0.027269877 -14.923281 59.131146 6603.4807 2.3530909e+09 0.11902732 0.026378719 -15.085102 59.023266 6605.4853 2.2514858e+09 0.11859587 0.027072169 -15.242562 58.915385 6607.4899 2.1571264e+09 0.11701294 0.024739573 -15.399887 58.807505 6609.4946 2.0726809e+09 0.11413018 0.023852838 -15.553864 58.699625 6611.4992 1.9901904e+09 0.11154414 0.024640122 -15.706694 58.591745 6613.5038 1.9088204e+09 0.11053730 0.023758442 -15.859525 58.483865 6615.5084 1.8191894e+09 0.10920849 0.023267175 -16.012356 58.375984 6617.5131 1.7364353e+09 0.10820218 0.023609358 -16.158374 58.272092 6619.5177 1.6777202e+09 0.10727236 0.024650828 -16.288164 58.177699 6621.5223 1.6288174e+09 0.10593980 0.024916317 -16.417955 58.083307 6623.5270 1.5902733e+09 0.10385368 0.024687058 -16.561711 57.978757 6625.5316 1.5407157e+09 0.10227389 0.026031955 -16.710047 57.870875 6627.5362 1.4815874e+09 0.10013815 0.025523945 -16.856007 57.760620 6629.5409 1.4314015e+09 0.098800972 0.026011317 -16.999847 57.648245 6631.5455 1.3756229e+09 0.097201716 0.025986176 -17.143687 57.537235 6633.5501 1.3234113e+09 0.096100930 0.026248297 -17.287527 57.429356 6635.5547 1.2750500e+09 0.094923293 0.026482979 -17.431011 57.321477 6637.5594 1.2285662e+09 0.093927657 0.025887449 -17.570356 57.213596 6639.5640 1.1783815e+09 0.093568289 0.025426488 -17.709701 57.105715 6641.5686 1.1276423e+09 0.094068632 0.025150231 -17.849047 56.993994 6643.5733 1.0761259e+09 0.093480781 0.025279174 -17.988394 56.881618 6645.5779 1.0382696e+09 0.092578680 0.025722404 -18.124909 56.772073 6647.5825 1.0072307e+09 0.091521591 0.026744479 -18.259759 56.664192 6649.5871 9.7038003e+08 0.090592406 0.026824332 -18.394608 56.554491 6651.5918 9.3402476e+08 0.090090456 0.026937678 -18.529458 56.442116 6653.5964 8.9053492e+08 0.089594707 0.027830166 -18.664308 56.330552 6655.6010 8.5812951e+08 0.088032068 0.027858566 -18.799159 56.222673 6657.6057 8.2514290e+08 0.086417831 0.029603666 -18.934009 56.114794 6659.6103 7.9373851e+08 0.084902507 0.031707290 -19.064563 56.002618 6661.6149 7.7050315e+08 0.083335866 0.032848145 -19.194918 55.890243 6663.6196 7.3928617e+08 0.081976915 0.032311519 -19.321989 55.777868 6665.6242 7.1323693e+08 0.081625314 0.027524381 -19.447850 55.665492 6667.6288 6.8596281e+08 0.080854377 0.027334432 -19.573711 55.553117 6669.6334 6.5718783e+08 0.079849833 0.027705111 -19.699571 55.440742 6671.6381 6.3148762e+08 0.079516773 0.026874441 -19.825431 55.329632 6673.6427 6.0292831e+08 0.078795930 0.028420428 -19.951290 55.221751 6675.6473 5.8126804e+08 0.076817313 0.031038238 -20.076895 55.113615 6677.6520 5.6237003e+08 0.075481993 0.031431385 -20.198260 55.001240 6679.6566 5.4197352e+08 0.075436756 0.029725193 -20.319625 54.888865 6681.6612 5.2060682e+08 0.076293493 0.030164637 -20.440973 54.776506 6683.6659 5.0138060e+08 0.076646062 0.032164394 -20.562318 54.664150 6685.6705 4.8652380e+08 0.076238254 0.033413031 -20.683675 54.551782 6687.6751 4.7084415e+08 0.074164436 0.033966384 -20.805040 54.439406 6689.6797 4.5326804e+08 0.072047072 0.033404149 -20.924686 54.327031 6691.6844 4.3289386e+08 0.071136778 0.032839797 -21.041556 54.214656 6693.6890 4.1314248e+08 0.070311329 0.031367719 -21.158427 54.102281 6695.6936 3.9886286e+08 0.070061769 0.029732062 -21.275297 53.989905 6697.6983 3.8517943e+08 0.069339910 0.030179631 -21.392167 53.877530 6699.7029 3.7566022e+08 0.067832600 0.030941868 -21.504843 53.765155 6701.7075 3.6630668e+08 0.066056758 0.032447575 -21.617218 53.652780 6703.7121 3.5491143e+08 0.066139390 0.035457254 -21.729593 53.540405 6705.7168 3.4479719e+08 0.066082550 0.037942891 -21.841968 53.428030 6707.7214 3.3480194e+08 0.065643238 0.040083486 -21.954344 53.315655 6709.7260 3.2530665e+08 0.064586037 0.040670749 -22.066719 53.203279 6711.7307 3.1582656e+08 0.062556177 0.041523530 -22.177931 53.090903 6713.7353 3.0444257e+08 0.060490207 0.046346028 -22.285811 52.978528 6715.7399 2.8958222e+08 0.058810240 0.048135362 -22.393691 52.866153 6717.7446 2.7869501e+08 0.056821115 0.049828214 -22.501571 52.753778 6719.7492 2.6982992e+08 0.055405063 0.050658060 -22.609451 52.641403 6721.7538 2.6391327e+08 0.055572591 0.050531027 -22.717332 52.529028 6723.7584 2.5822133e+08 0.053878093 0.049791941 -22.825212 52.416653 6725.7631 2.4978140e+08 0.050066334 0.041099365 -22.930464 52.304278 6727.7677 2.4285162e+08 0.049198455 0.039937587 -23.033849 52.191903 6729.7723 2.3482380e+08 0.048194747 0.040530649 -23.143440 52.072782 6731.7770 2.2482326e+08 0.046609587 0.043296321 -23.264059 51.941674 6733.7816 2.1619501e+08 0.045621211 0.048167793 -23.376866 51.819057 6735.7862 2.0855603e+08 0.046912580 0.050128063 -23.480252 51.706682 6737.7909 2.0072393e+08 0.048163520 0.056654838 -23.582609 51.593278 6739.7955 1.9350975e+08 0.048133052 0.063800068 -23.681500 51.476409 6741.8001 1.8364024e+08 0.046267532 0.068040650 -23.780391 51.359561 6743.8047 1.7875687e+08 0.041871993 0.076476186 -23.879280 51.247183 6745.8094 1.7834065e+08 0.040390260 0.078907138 -23.978170 51.134807 6747.8140 1.7332441e+08 0.036113354 0.067080933 -24.077060 51.022432 6749.8186 1.6653149e+08 0.033900911 0.072053792 -24.175949 50.910057 6751.8233 1.5609620e+08 0.031082497 0.074059749 -24.274840 50.797682 6753.8279 1.4746116e+08 0.029698296 0.075656482 -24.373730 50.685307 6755.8325 1.4784526e+08 0.027326484 0.074240340 -24.476329 50.566753 6757.8371 1.4479352e+08 0.026252183 0.074199542 -24.586460 50.435644 6759.8418 1.3922187e+08 0.026777469 0.076023089 -24.689934 50.310558 6761.8464 1.3305602e+08 0.029714108 0.078038154 -24.784329 50.193687 6763.8510 1.2367471e+08 0.032800612 0.079029608 -24.878725 50.077708 6765.8557 1.2153847e+08 0.034414431 0.079687398 -24.973119 49.965333 6767.8603 1.1796625e+08 0.031870187 0.081012460 -25.067514 49.852958 6769.8649 1.1318232e+08 0.027335269 0.086552080 -25.157533 49.740583 6771.8696 1.0998573e+08 0.023537927 0.091414188 -25.247433 49.628208 6773.8742 1.0507785e+08 0.019692410 0.096276296 -25.348557 49.497875 6775.8788 1.0240919e+08 0.015874823 0.10113840 -25.453443 49.361524 6777.8834 1.0009115e+08 0.012054372 0.10600051 -25.545709 49.245364 6779.8881 95759765. 0.0081634595 0.11086262 -25.635609 49.132989 6781.8927 92543386. 0.0042862475 0.11572473 -25.725500 49.020625 6783.8973 88697433. 0.00036571849 0.12058684 -25.815386 48.908269 6785.9020 82943886. -0.0036790867 0.12544894 -25.909099 48.786497 6787.9066 76468457. -0.0078348631 0.13031105 -26.008741 48.650145 6789.9112 68938094. -0.012185734 0.13517316 -26.103652 48.525436 6791.9158 63341691. -0.016516630 0.14003527 -26.193553 48.413061 6793.9205 61105247. -0.020579690 0.14489738 -26.282280 48.300686 6795.9251 61914238. -0.024307153 0.14975949 -26.367686 48.188311 6797.9297 64365519. -0.027859776 0.15462159 -26.453416 48.075068 6799.9344 62546847. -0.031975109 0.15948370 -26.547813 47.938715 6801.9390 57755374. -0.036667796 0.16434581 -26.641047 47.805463 6803.9436 54596804. -0.041401372 0.16920792 -26.726453 47.693088 6805.9483 51955354. -0.046409709 0.17407003 -26.811859 47.580712 6807.9529 54864205. -0.050576595 0.17893213 -26.905399 47.446646 6809.9575 53405445. -0.056521683 0.18379424 -26.999750 47.310379 6811.9621 50233209. -0.064807544 0.18865635 -27.080736 47.197868 6813.9668 51286639. -0.076180219 0.19351846 -27.161646 47.085493 6815.9714 52387146. -0.12741977 0.19838057 -27.252985 46.958634 6817.9760 54248659. -0.086651080 0.20324267 -27.347383 46.827526 6819.9807 48975597. -0.0040432220 0.20810478 -27.430096 46.708752