# # 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 = 50.048487 km # Date (UTC) = 2014-11-30T08:56:06.359 # Date (julian) = 2456991.87229582 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.6507 7.1263852e+10 0.059760498 0.033384066 -10.992625 56.266846 6505.8077 6.6028716e+10 0.068461238 0.034034520 -11.124306 56.180312 6507.9648 6.0728918e+10 0.077363419 0.034684974 -11.266742 56.084261 6510.1219 5.5518168e+10 0.086494745 0.035335428 -11.410633 55.986923 6512.2789 5.0485993e+10 0.095872433 0.035985881 -11.554525 55.887393 6514.4360 4.5817216e+10 0.10552642 0.036636335 -11.698416 55.785824 6516.5930 4.1885456e+10 0.11559311 0.037286789 -11.839245 55.686587 6518.7501 3.8739134e+10 0.12619391 0.037937243 -11.963385 55.600066 6520.9071 3.6112055e+10 0.13730499 0.038587697 -12.087525 55.513544 6523.0642 3.3794562e+10 0.14592456 0.039195019 -12.219373 55.421650 6525.2212 3.1375971e+10 0.15189644 0.039756966 -12.359032 55.324312 6527.3783 2.8959791e+10 0.15658383 0.040991109 -12.498692 55.226974 6529.5353 2.6632035e+10 0.16038496 0.043088531 -12.638352 55.129634 6531.6924 2.4453188e+10 0.16385617 0.046236464 -12.778012 55.032294 6533.8494 2.2400300e+10 0.16606361 0.047880576 -12.911145 54.931693 6536.0065 2.0469446e+10 0.16641136 0.047796317 -13.042340 54.830124 6538.1636 1.8769601e+10 0.16869005 0.049236323 -13.169127 54.734690 6540.3206 1.7371449e+10 0.16968706 0.051005565 -13.289521 54.648157 6542.4777 1.6184269e+10 0.16887661 0.051183585 -13.409915 54.561624 6544.6347 1.5093514e+10 0.16798405 0.052159241 -13.538411 54.463811 6546.7918 1.3974391e+10 0.16637087 0.053116024 -13.669606 54.362240 6548.9488 1.2888455e+10 0.16421003 0.053950997 -13.800801 54.262308 6551.1059 1.1867888e+10 0.16272665 0.055272915 -13.931997 54.164970 6553.2629 1.0919127e+10 0.16152606 0.055202896 -14.062746 54.067803 6555.4200 1.0127201e+10 0.15983824 0.054500478 -14.175600 53.977521 6557.5770 9.4559534e+09 0.15821154 0.053504418 -14.288454 53.887238 6559.7341 8.9110111e+09 0.15619315 0.052304323 -14.406472 53.792824 6561.8911 8.3798904e+09 0.15396350 0.050933544 -14.533435 53.691253 6564.0482 7.8361960e+09 0.15154803 0.048749754 -14.660367 53.589713 6566.2053 7.2881983e+09 0.15002464 0.047066773 -14.783116 53.492357 6568.3623 6.7597889e+09 0.14904582 0.045438616 -14.905847 53.395019 6570.5194 6.3073608e+09 0.14813943 0.044702372 -15.019855 53.302189 6572.6764 5.9409794e+09 0.14690082 0.043842791 -15.128961 53.211893 6574.8335 5.6574719e+09 0.14517436 0.042454693 -15.238068 53.121598 6576.9905 5.3824142e+09 0.14313380 0.040231282 -15.360558 53.020228 6579.1476 5.0775247e+09 0.14054137 0.036989369 -15.483289 52.918658 6581.3046 4.7526617e+09 0.13854799 0.035504363 -15.603399 52.817087 6583.4617 4.4504250e+09 0.13674816 0.034787983 -15.721898 52.715516 6585.6187 4.1888928e+09 0.13461514 0.033476107 -15.837019 52.617806 6587.7758 3.9787007e+09 0.13260108 0.033330255 -15.942349 52.531284 6589.9328 3.8096463e+09 0.13004535 0.031195298 -16.047680 52.444763 6592.0899 3.6421311e+09 0.12720998 0.027986208 -16.158356 52.349238 6594.2470 3.4616444e+09 0.12484735 0.026036959 -16.272623 52.247667 6596.4040 3.2735743e+09 0.12249222 0.025725437 -16.386890 52.146097 6598.5611 3.0865544e+09 0.12104451 0.025139295 -16.501156 52.044527 6600.7181 2.9170032e+09 0.12111217 0.026466184 -16.615422 51.942957 6602.8752 2.7637999e+09 0.12053614 0.026769800 -16.718623 51.851223 6605.0322 2.6343753e+09 0.11992933 0.026692074 -16.820205 51.760928 6607.1893 2.5227052e+09 0.11864328 0.025333248 -16.923600 51.668214 6609.3463 2.4141405e+09 0.11567000 0.023808808 -17.033635 51.566644 6611.5034 2.3006022e+09 0.11303586 0.024637446 -17.143669 51.465075 6613.6604 2.1793449e+09 0.11213148 0.023815906 -17.253704 51.363504 6615.8175 2.0601211e+09 0.11070236 0.023276684 -17.363739 51.261933 6617.9745 1.9499691e+09 0.11001846 0.023762356 -17.467798 51.165878 6620.1316 1.8603597e+09 0.10916645 0.024809605 -17.565605 51.075596 6622.2887 1.7877154e+09 0.10755735 0.024681163 -17.663412 50.985313 6624.4457 1.7185405e+09 0.10549486 0.025100894 -17.767859 50.885657 6626.6028 1.6432633e+09 0.10351988 0.025822932 -17.873661 50.784085 6628.7598 1.5627960e+09 0.10184732 0.026011587 -17.979464 50.680536 6630.9169 1.4875270e+09 0.099785807 0.025930561 -18.085266 50.574734 6633.0739 1.4157995e+09 0.098046761 0.026165159 -18.191069 50.469374 6635.2310 1.3448126e+09 0.096068030 0.026434426 -18.296871 50.367805 6637.3880 1.2770187e+09 0.094292737 0.025971367 -18.402673 50.266235 6639.5451 1.2187199e+09 0.093436615 0.025433250 -18.499765 50.173027 6641.7021 1.1735544e+09 0.093670168 0.025150685 -18.593823 50.082731 6643.8592 1.1305903e+09 0.092801182 0.025322346 -18.688510 49.991490 6646.0162 1.0870867e+09 0.091864025 0.025928555 -18.790080 49.889919 6648.1733 1.0386178e+09 0.090950315 0.027080290 -18.891650 49.788348 6650.3304 9.9294720e+08 0.090305093 0.026330864 -18.993221 49.686778 6652.4874 9.5204984e+08 0.089804863 0.027384626 -19.094791 49.585209 6654.6445 9.1314160e+08 0.088789651 0.027761680 -19.194846 49.483639 6656.8015 8.7495760e+08 0.086843689 0.028726901 -19.292184 49.382068 6658.9586 8.3408120e+08 0.085226051 0.031761116 -19.389522 49.280483 6661.1156 7.9576059e+08 0.083857549 0.032593838 -19.486861 49.174715 6663.2727 7.5846887e+08 0.082556553 0.032407648 -19.584201 49.068912 6665.4297 7.2276654e+08 0.082046578 0.027843006 -19.681539 48.965785 6667.5868 6.8998659e+08 0.081349109 0.027318993 -19.778877 48.864216 6669.7438 6.5647264e+08 0.080444530 0.027591731 -19.873302 48.765686 6671.9009 6.2589911e+08 0.080116600 0.026878187 -19.959823 48.675402 6674.0579 6.0290213e+08 0.079065029 0.029003670 -20.046345 48.585118 6676.2150 5.7821417e+08 0.076589991 0.031852289 -20.136898 48.485343 6678.3721 5.5878698e+08 0.075391623 0.030687770 -20.230017 48.379524 6680.5291 5.3886300e+08 0.075657570 0.029555672 -20.324185 48.274762 6682.6862 5.1825081e+08 0.076042372 0.030948794 -20.421524 48.173193 6684.8432 4.9769318e+08 0.075742438 0.032696881 -20.518863 48.071623 6687.0003 4.7268671e+08 0.074042975 0.034342751 -20.608706 47.970052 6689.1573 4.4925387e+08 0.071333057 0.033874411 -20.697580 47.868480 6691.3144 4.2535573e+08 0.070558757 0.032927091 -20.788666 47.764697 6693.4714 4.0439695e+08 0.069802360 0.031442360 -20.881772 47.658895 6695.6285 3.8428467e+08 0.069590978 0.029744029 -20.974201 47.553769 6697.7855 3.6776045e+08 0.068959155 0.030190676 -21.063076 47.452199 6699.9426 3.5680127e+08 0.067434769 0.030720692 -21.151950 47.350630 6702.0996 3.4297579e+08 0.065824034 0.032956295 -21.244197 47.249059 6704.2567 3.2757518e+08 0.066229254 0.036303605 -21.337302 47.147488 6706.4138 3.1217177e+08 0.066157172 0.039166505 -21.426735 47.044081 6708.5708 2.9679243e+08 0.065726527 0.040665164 -21.511378 46.938278 6710.7279 2.8769369e+08 0.064139419 0.040638964 -21.596322 46.832776 6712.8849 2.7630237e+08 0.062097684 0.043472944 -21.685195 46.731205 6715.0420 2.6351588e+08 0.060079223 0.047421510 -21.774069 46.629634 6717.1990 2.5370208e+08 0.057932570 0.049861958 -21.859946 46.528064 6719.3561 2.4063610e+08 0.055929112 0.051031543 -21.944588 46.426494 6721.5131 2.3086326e+08 0.056148739 0.050458507 -22.030696 46.323458 6723.6702 2.2073978e+08 0.054398714 0.049742715 -22.119583 46.217640 6725.8272 2.0999338e+08 0.050290362 0.041059286 -22.208470 46.111821 6727.9843 2.0302249e+08 0.049303629 0.039649032 -22.293185 46.010177 6730.1413 1.9424266e+08 0.047775413 0.040572700 -22.377827 45.908606 6732.2984 1.8803424e+08 0.045997262 0.043795143 -22.459846 45.804412 6734.4554 1.8300581e+08 0.045240643 0.049326196 -22.540257 45.698609 6736.6125 1.7313938e+08 0.046840425 0.052670612 -22.624863 45.590164 6738.7696 1.6871722e+08 0.047580816 0.061557860 -22.721598 45.474082 6740.9266 1.5974262e+08 0.046494922 0.065633318 -22.815239 45.360751 6743.0837 1.5105863e+08 0.042779899 0.071611843 -22.895649 45.259180 6745.2407 1.4237364e+08 0.039616587 0.078668083 -22.976059 45.157609 6747.3978 1.3269156e+08 0.034991705 0.067224223 -23.056469 45.052540 6749.5548 1.3018672e+08 0.033441934 0.072126021 -23.136879 44.946737 6751.7119 1.2781770e+08 0.030073923 0.074012658 -23.217289 44.842898 6753.8689 1.2234064e+08 0.028268607 0.075789319 -23.297699 44.741329 6756.0260 1.1674543e+08 0.025577606 0.074233780 -23.379268 44.637808 6758.1830 1.1104865e+08 0.024824131 0.074092389 -23.471167 44.516888 6760.3401 1.1013459e+08 0.025156823 0.076709818 -23.562541 44.396613 6762.4971 1.0789919e+08 0.029316396 0.077248902 -23.638719 44.295042 6764.6542 1.0334994e+08 0.031791621 0.079514627 -23.714897 44.193471 6766.8113 98600164. 0.031889073 0.081548825 -23.791075 44.089063 6768.9683 88579230. 0.026797211 0.084340236 -23.867252 43.983260 6771.1254 84163588. 0.022525579 0.089609204 -23.946778 43.874296 6773.2824 79904351. 0.018251070 0.094841008 -24.033840 43.758212 6775.4395 77051783. 0.014019056 0.10007281 -24.118289 43.645613 6777.5965 78455405. 0.010008046 0.10530462 -24.194468 43.544043 6779.7536 75011954. 0.0056570806 0.11053642 -24.270646 43.442473 6781.9106 76269963. 0.0015594990 0.11576822 -24.346823 43.337190 6784.0677 76759590. -0.0026790974 0.12100003 -24.423000 43.231388 6786.2247 72460360. -0.0075259393 0.12623183 -24.502288 43.120298 6788.3818 68730689. -0.012829421 0.13146364 -24.584513 43.004214 6790.5388 61062301. -0.019868801 0.13669544 -24.668900 42.885970 6792.6959 57824997. -0.029668374 0.14192724 -24.755962 42.765050 6794.8530 55963844. -0.066826555 0.14715905 -24.837294 42.651465 6797.0100 52809416. -0.044063969 0.15239085 -24.909251 42.549880 6799.1671 50040617. 0.016357701 0.15762265 -24.981380 42.447971