# # 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 = 55.118558 km # Date (UTC) = 2014-12-14T10:08:05.260 # Date (julian) = 2457005.92228311 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6495.9102 7.9515081e+10 0.034568406 0.031049944 -31.613075 51.290663 6498.0843 7.1241278e+10 0.041182617 0.031705533 -31.723028 51.203459 6500.2584 6.3393694e+10 0.047640461 0.032361121 -31.829775 51.113049 6502.4325 5.8217118e+10 0.054212916 0.033016709 -31.935937 51.022054 6504.6065 5.4834718e+10 0.061200645 0.033672297 -32.042099 50.931059 6506.7806 5.1029179e+10 0.068489418 0.034327885 -32.148261 50.840062 6508.9547 4.7620836e+10 0.076315821 0.034983473 -32.254422 50.749065 6511.1288 4.4284839e+10 0.084691465 0.035639062 -32.360593 50.660226 6513.3029 4.1314128e+10 0.093764104 0.036294650 -32.466770 50.573011 6515.4769 3.8702495e+10 0.10367702 0.036950238 -32.572947 50.485795 6517.6510 3.6153707e+10 0.11434352 0.037605826 -32.675569 50.395051 6519.8251 3.3936716e+10 0.12594699 0.038261414 -32.777938 50.304055 6521.9992 3.1693898e+10 0.13826316 0.038917002 -32.880308 50.213060 6524.1733 2.9574133e+10 0.14513294 0.039488510 -32.982678 50.122063 6526.3473 2.7721875e+10 0.15163707 0.040032228 -33.085049 50.031067 6528.5214 2.5917123e+10 0.15820235 0.041856124 -33.184923 49.940070 6530.6955 2.4333329e+10 0.16387691 0.044802380 -33.283503 49.849074 6532.8696 2.2638998e+10 0.16951582 0.047410633 -33.382083 49.758077 6535.0437 2.1094802e+10 0.17267626 0.048205358 -33.480674 49.667069 6537.2177 1.9244781e+10 0.17347880 0.048787880 -33.579266 49.576062 6539.3918 1.7488394e+10 0.17308998 0.050117914 -33.677852 49.485059 6541.5659 1.6029431e+10 0.17116398 0.051143013 -33.776432 49.394062 6543.7400 1.4749653e+10 0.16896215 0.051576104 -33.875012 49.303066 6545.9141 1.3911485e+10 0.16686780 0.052463756 -33.973591 49.212070 6548.0881 1.2969693e+10 0.16577224 0.053693968 -34.072169 49.121075 6550.2622 1.2066888e+10 0.16448695 0.055051017 -34.170334 49.030080 6552.4363 1.1243947e+10 0.16308789 0.055476950 -34.265122 48.939083 6554.6104 1.0468412e+10 0.16136104 0.054845189 -34.359909 48.848087 6556.7845 9.7565499e+09 0.15961068 0.053897795 -34.454703 48.757085 6558.9585 9.1633917e+09 0.15733796 0.052422509 -34.549503 48.666078 6561.1326 8.6622957e+09 0.15500244 0.051307327 -34.644303 48.575071 6563.3067 8.3880679e+09 0.15280726 0.049573583 -34.739092 48.484072 6565.4808 7.7458651e+09 0.15085820 0.047772462 -34.833880 48.393076 6567.6549 6.9534994e+09 0.14956065 0.046063484 -34.927921 48.302079 6569.8289 6.0222303e+09 0.14884195 0.044906376 -35.018917 48.211084 6572.0030 5.2104750e+09 0.14817997 0.044228424 -35.109914 48.120089 6574.1771 4.9977529e+09 0.14580866 0.042769943 -35.200909 48.029093 6576.3512 4.7360648e+09 0.14367799 0.040967173 -35.291905 47.938096 6578.5253 4.5490958e+09 0.14087270 0.037820160 -35.382900 47.847100 6580.6993 4.2823441e+09 0.13823127 0.035874457 -35.473908 47.756092 6582.8734 4.0157237e+09 0.13605625 0.035056111 -35.564916 47.665083 6585.0475 3.9113867e+09 0.13358480 0.033932793 -35.659161 47.570838 6587.2216 3.8038938e+09 0.13137005 0.033207464 -35.761533 47.468467 6589.3957 3.6708645e+09 0.12950908 0.032261010 -35.863904 47.366095 6591.5697 3.4962520e+09 0.12739450 0.028559017 -35.952011 47.274422 6593.7438 3.3250487e+09 0.12541962 0.026410687 -36.039216 47.183425 6595.9179 3.1405382e+09 0.12303636 0.025718761 -36.126420 47.092429 6598.0920 2.9593038e+09 0.12148714 0.025363247 -36.213626 47.001434 6600.2661 2.7935068e+09 0.12113282 0.025536863 -36.300832 46.910438 6602.4401 2.6342252e+09 0.12068029 0.027141028 -36.388044 46.819434 6604.6142 2.4922621e+09 0.11976176 0.026435986 -36.475260 46.728426 6606.7883 2.3755589e+09 0.11888576 0.026087396 -36.562368 46.637310 6608.9624 2.2725483e+09 0.11582853 0.023706926 -36.645780 46.542522 6611.1365 2.1851546e+09 0.11277153 0.024871428 -36.729192 46.447735 6613.3106 2.0918345e+09 0.11160695 0.023687532 -36.812605 46.354430 6615.4846 1.9986384e+09 0.10999323 0.023266442 -36.896018 46.263435 6617.6587 1.8860188e+09 0.10893675 0.023657643 -36.979431 46.172440 6619.8328 1.7817155e+09 0.10811248 0.024726853 -37.062845 46.081443 6622.0069 1.6888278e+09 0.10665462 0.024756163 -37.146258 45.990447 6624.1810 1.6253886e+09 0.10428187 0.024959173 -37.229673 45.899448 6626.3550 1.5880335e+09 0.10216850 0.026138558 -37.313096 45.808440 6628.5291 1.5247076e+09 0.10004637 0.025917920 -37.396519 45.717431 6630.7032 1.4374963e+09 0.098046903 0.025930035 -37.482889 45.620982 6632.8773 1.3382060e+09 0.096556170 0.026137537 -37.572465 45.518611 6635.0514 1.2673751e+09 0.095079552 0.026407489 -37.660704 45.417769 6637.2254 1.2141918e+09 0.093701571 0.026051001 -37.740325 45.326772 6639.3995 1.1700677e+09 0.093074130 0.025485279 -37.819946 45.235776 6641.5736 1.1200934e+09 0.093644221 0.025150248 -37.899567 45.142895 6643.7477 1.0716050e+09 0.092881322 0.025305508 -37.979189 45.048108 6645.9218 1.0291727e+09 0.091890711 0.025883493 -38.058810 44.953320 6648.0958 9.8876608e+08 0.090884063 0.027028438 -38.138431 44.861792 6650.2699 9.5303973e+08 0.090078188 0.026317029 -38.218052 44.770797 6652.4440 9.1537950e+08 0.089493075 0.027372683 -38.299886 44.677273 6654.6181 8.8058296e+08 0.088412598 0.027772919 -38.389476 44.574885 6656.7922 8.4137444e+08 0.086434071 0.028718690 -38.479066 44.472497 6658.9662 8.0237973e+08 0.084754440 0.031774722 -38.556575 44.380111 6661.1403 7.6709837e+08 0.083317908 0.032606417 -38.632403 44.289116 6663.3144 7.3843728e+08 0.081868354 0.032396085 -38.708233 44.197209 6665.4885 7.1011633e+08 0.081264804 0.027746739 -38.784063 44.102421 6667.6626 6.8771173e+08 0.080369639 0.027346827 -38.859894 44.007633 6669.8366 6.6466028e+08 0.079332323 0.027496414 -38.941441 43.908272 6672.0107 6.3521609e+08 0.078869906 0.026885813 -39.026751 43.805899 6674.1848 6.0784211e+08 0.077695362 0.029110683 -39.109610 43.706468 6676.3589 5.7750287e+08 0.075182775 0.031945021 -39.185440 43.615473 6678.5330 5.5285929e+08 0.074020728 0.030580146 -39.261270 43.524478 6680.7070 5.3066249e+08 0.074510577 0.029594096 -39.334751 43.433475 6682.8811 5.0935329e+08 0.075090397 0.031097754 -39.406798 43.342466 6685.0552 4.9009490e+08 0.074964844 0.032763146 -39.478846 43.251458 6687.2293 4.7314131e+08 0.073183239 0.034215026 -39.559746 43.145070 6689.4034 4.5379575e+08 0.070714047 0.033652932 -39.640790 43.038432 6691.5774 4.3344324e+08 0.069818869 0.032865024 -39.716075 42.941798 6693.7515 4.1371674e+08 0.068930334 0.031346269 -39.788114 42.850802 6695.9256 3.9466471e+08 0.068778877 0.029689451 -39.860218 42.759724 6698.0997 3.7930373e+08 0.067953629 0.030354646 -39.941217 42.657410 6700.2738 3.6397081e+08 0.066280783 0.030870778 -40.022261 42.555039 6702.4478 3.4912037e+08 0.065082331 0.033234337 -40.097382 42.460149 6704.6219 3.3654614e+08 0.065329284 0.036482952 -40.169421 42.369153 6706.7960 3.2394741e+08 0.065019497 0.039831792 -40.241556 42.277926 6708.9701 3.1109266e+08 0.064405786 0.041099969 -40.318334 42.175554 6711.1442 3.0041654e+08 0.062583904 0.040856256 -40.395112 42.073182 6713.3182 2.8753136e+08 0.060472863 0.044837658 -40.466131 41.975928 6715.4923 2.7575185e+08 0.058495651 0.047882127 -40.534387 41.881128 6717.6664 2.6687870e+08 0.056312876 0.049833048 -40.602973 41.786035 6719.8405 2.5482711e+08 0.054818729 0.050571314 -40.679752 41.683662 6722.0146 2.4492188e+08 0.054831193 0.050587193 -40.756531 41.581289 6724.1886 2.3644698e+08 0.052238081 0.048351316 -40.827386 41.486817 6726.3627 2.2930077e+08 0.048641739 0.040954639 -40.895633 41.395822 6728.5368 2.2323470e+08 0.047992987 0.040388936 -40.964365 41.304180 6730.7109 2.1356146e+08 0.046363924 0.041353621 -41.041144 41.201807 6732.8850 2.0517607e+08 0.045115846 0.043903129 -41.117924 41.099434 6735.0591 1.9719715e+08 0.045242781 0.049356120 -41.194703 40.994023 6737.2331 1.9147598e+08 0.046898935 0.054878212 -41.271483 40.887384 6739.4072 1.8600209e+08 0.047322942 0.063324902 -41.346692 40.782317 6741.5813 1.7858602e+08 0.045640241 0.067416571 -41.419207 40.679946 6743.7554 1.7221687e+08 0.041158883 0.076143164 -41.491530 40.577844 6745.9295 1.6433644e+08 0.039649893 0.078957621 -41.555993 40.486835 6748.1035 1.6051117e+08 0.035501101 0.067561593 -41.620457 40.395827 6750.2776 1.5819577e+08 0.032739288 0.072478169 -41.688032 40.300425 6752.4517 1.5272523e+08 0.029951899 0.073611782 -41.760547 40.198052 6754.6258 1.4607190e+08 0.028468381 0.075207147 -41.833061 40.095680 6756.7999 1.3709025e+08 0.025721337 0.076225054 -41.905574 39.993308 6758.9739 1.3231369e+08 0.026444290 0.075764837 -41.978087 39.890936 6761.1480 1.2835295e+08 0.027225200 0.077980454 -42.050600 39.785588 6763.3221 1.2308112e+08 0.032251025 0.077418715 -42.123113 39.678950 6765.4962 1.1831533e+08 0.034406352 0.079621772 -42.194119 39.573820 6767.6703 1.1363442e+08 0.032586050 0.081225252 -42.262368 39.471447 6769.8443 1.1042676e+08 0.027845118 0.086502150 -42.330663 39.369075 6772.0184 1.0701823e+08 0.023886682 0.091775250 -42.403169 39.266703 6774.1925 1.0212703e+08 0.019928256 0.097048351 -42.475682 39.164332 6776.3666 98089196. 0.015997231 0.10232145 -42.545361 39.061960 6778.5407 95527191. 0.012107950 0.10759455 -42.613609 38.959586 6780.7147 88681151. 0.0081950721 0.11286765 -42.681857 38.857214 6782.8888 85388072. 0.0043351315 0.11814075 -42.750105 38.754843 6785.0629 82245309. 0.00047172585 0.12341385 -42.818353 38.652472 6787.2370 78641791. -0.0034077363 0.12868696 -42.886611 38.545921 6789.4111 78396670. -0.0072365321 0.13396006 -42.954869 38.439268 6791.5851 72365637. -0.011207190 0.13923316 -43.023121 38.335319 6793.7592 70600695. -0.015123386 0.14450626 -43.091369 38.232946 6795.9333 70811835. -0.019035347 0.14977936 -43.158391 38.130574 6798.1074 66689372. -0.023150609 0.15505246 -43.222374 38.028201 6800.2815 66579666. -0.027268999 0.16032556 -43.286357 37.925828 6802.4555 62913909. -0.031771998 0.16559866 -43.354363 37.823456 6804.6296 60607117. -0.036683860 0.17087176 -43.422611 37.721085 6806.8037 57770737. -0.043210701 0.17614486 -43.493778 37.609955 6808.9778 51382778. -0.064213398 0.18141796 -43.566901 37.492955 6811.1519 48878208. -0.054852302 0.18669106 -43.635021 37.383963 6813.3259 48543962. -0.027931258 0.19196416 -43.699005 37.281592