# # 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 = 59.278669 km # Date (UTC) = 2013-12-18T06:28:17.445 # Date (julian) = 2456644.76964636 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.6248 4.5957608e+10 0.053424960 0.032773174 21.425786 49.169187 6504.1476 4.2330525e+10 0.062087873 0.033533893 21.311399 49.063598 6506.6703 3.9019837e+10 0.071002233 0.034294612 21.197011 48.958009 6509.1930 3.5831642e+10 0.080228253 0.035055331 21.082624 48.852420 6511.7157 3.2498064e+10 0.089711236 0.035816051 20.954264 48.733936 6514.2384 2.9161931e+10 0.099455120 0.036576770 20.825576 48.615148 6516.7611 2.6109081e+10 0.10961650 0.037337489 20.714764 48.504765 6519.2839 2.3698646e+10 0.12057166 0.038098208 20.604762 48.394762 6521.8066 2.1830380e+10 0.13247485 0.038858927 20.494769 48.287779 6524.3293 2.0167686e+10 0.13873599 0.039543947 20.384782 48.182190 6526.8520 1.8625705e+10 0.14425539 0.040561332 20.274794 48.076602 6529.3747 1.7234146e+10 0.14850129 0.042832713 20.164806 47.971015 6531.8975 1.5921834e+10 0.15320461 0.046534941 20.055426 47.864820 6534.4202 1.4704752e+10 0.15607424 0.048062097 19.949838 47.754832 6536.9429 1.3609100e+10 0.15862079 0.048634135 19.844250 47.644845 6539.4656 1.2604789e+10 0.16108773 0.050207243 19.738649 47.538650 6541.9883 1.1709305e+10 0.16262634 0.051006021 19.633047 47.433047 6544.5111 1.0857832e+10 0.16383446 0.052058923 19.527453 47.327453 6547.0338 1.0090429e+10 0.16438183 0.053300207 19.421865 47.221866 6549.5565 9.3780240e+09 0.16368427 0.054533387 19.317683 47.114873 6552.0792 8.7148597e+09 0.16264639 0.055566830 19.216494 47.004886 6554.6019 8.1171911e+09 0.16059440 0.054845011 19.115101 46.895102 6557.1246 7.5540139e+09 0.15874001 0.053787979 19.009512 46.789513 6559.6474 7.0563079e+09 0.15644445 0.052314112 18.903924 46.683924 6562.1701 6.6035543e+09 0.15408806 0.050718063 18.801728 46.578324 6564.6928 6.1890087e+09 0.15187960 0.048457620 18.700525 46.472721 6567.2155 5.8118619e+09 0.15032043 0.046434960 18.599330 46.364923 6569.7382 5.4823980e+09 0.14913001 0.044900472 18.498142 46.254935 6572.2610 5.1641411e+09 0.14789875 0.044080712 18.395200 46.142943 6574.7837 4.8358893e+09 0.14615629 0.042478608 18.286310 46.024155 6577.3064 4.5040286e+09 0.14415438 0.039739100 18.179930 45.907192 6579.8291 4.1830998e+09 0.14193690 0.036614697 18.083140 45.797205 6582.3518 3.9111894e+09 0.13986332 0.035198052 17.986351 45.687217 6584.8746 3.6739960e+09 0.13784378 0.034039110 17.889562 45.581340 6587.3973 3.4556648e+09 0.13566785 0.033246389 17.792773 45.475751 6589.9200 3.2586142e+09 0.13320790 0.031220805 17.695975 45.367243 6592.4427 3.0694879e+09 0.12997156 0.027643523 17.599174 45.257240 6594.9654 2.8982091e+09 0.12662673 0.025642551 17.504087 45.148954 6597.4881 2.7432556e+09 0.12285318 0.025568688 17.411696 45.043367 6600.0109 2.5903782e+09 0.12058204 0.025012207 17.318797 44.937270 6602.5336 2.4566524e+09 0.11858717 0.027061296 17.222008 44.827283 6605.0563 2.3271399e+09 0.11682308 0.026712274 17.125220 44.717295 6607.5790 2.2142695e+09 0.11470330 0.024563651 17.032138 44.611015 6610.1017 2.1109649e+09 0.11145917 0.024100186 16.939748 44.505425 6612.6245 2.0028516e+09 0.10948853 0.023854182 16.843589 44.389485 6615.1472 1.8895878e+09 0.10842615 0.023256060 16.744584 44.265728 6617.6699 1.7745755e+09 0.10744721 0.023661350 16.649215 44.151959 6620.1926 1.6746790e+09 0.10686040 0.024829267 16.556825 44.046372 6622.7153 1.5870894e+09 0.10536053 0.024567596 16.465653 43.939567 6625.2380 1.5087020e+09 0.10367796 0.025681668 16.377663 43.829579 6627.7608 1.4338222e+09 0.10154341 0.025610683 16.289673 43.719608 6630.2835 1.3638660e+09 0.099792619 0.025929000 16.201683 43.614019 6632.8062 1.3024751e+09 0.097744818 0.026129016 16.113692 43.508430 6635.3289 1.2408498e+09 0.095709901 0.026449115 16.017664 43.389579 6637.8516 1.1722573e+09 0.093987163 0.025744303 15.918674 43.265841 6640.3744 1.1017971e+09 0.093574211 0.025224848 15.827488 43.154986 6642.8971 1.0343247e+09 0.093001235 0.025188407 15.739486 43.049384 6645.4198 9.7713986e+08 0.091332633 0.025648344 15.653414 42.941863 6647.9425 9.3028001e+08 0.089556522 0.026934019 15.569824 42.831876 6650.4652 8.8830989e+08 0.088058468 0.026361743 15.485509 42.722612 6652.9880 8.5129444e+08 0.086887794 0.027522347 15.397519 42.617024 6655.5107 8.1589137e+08 0.084493927 0.027821227 15.309529 42.511435 6658.0334 7.7246997e+08 0.082095309 0.030120300 15.216143 42.389662 6660.5561 7.3215355e+08 0.079988310 0.032131475 15.122102 42.265924 6663.0788 6.9407193e+08 0.078405151 0.032461367 15.037157 42.157987 6665.6015 6.6153774e+08 0.077899459 0.027561473 14.953555 42.052384 6668.1243 6.3318945e+08 0.077210304 0.027580742 14.866667 41.935924 6670.6470 6.0064346e+08 0.076835095 0.027028895 14.777575 41.812186 6673.1697 5.6716805e+08 0.076519943 0.027713021 14.691665 41.698944 6675.6924 5.3703907e+08 0.074404030 0.031124600 14.608074 41.593357 6678.2151 5.1098175e+08 0.073057272 0.030792718 14.525827 41.486426 6680.7379 4.9130329e+08 0.073574866 0.029600751 14.446636 41.376439 6683.2606 4.7405308e+08 0.074161834 0.031570461 14.367125 41.266167 6685.7833 4.4935968e+08 0.073698778 0.033532192 14.278033 41.147377 6688.3060 4.2586603e+08 0.070844020 0.033855829 14.189058 41.028691 6690.8287 4.0173729e+08 0.069046596 0.033020890 14.109857 40.918689 6693.3515 3.8356751e+08 0.067911301 0.031483519 14.030656 40.808687 6695.8742 3.6492679e+08 0.067385035 0.029698899 13.944143 40.692191 6698.3969 3.4293398e+08 0.066284471 0.030762594 13.855052 40.573403 6700.9196 3.2610364e+08 0.064106022 0.031349818 13.776239 40.460941 6703.4423 3.1179919e+08 0.063656727 0.034782079 13.701448 40.350954 6705.9650 3.0180274e+08 0.063505828 0.038384263 13.620281 40.237042 6708.4878 2.8698149e+08 0.062869250 0.040574737 13.531189 40.118253 6711.0105 2.6920112e+08 0.060968463 0.040704160 13.444203 39.997358 6713.5332 2.5353607e+08 0.058437982 0.045615101 13.360062 39.873619 6716.0559 2.3934777e+08 0.056274265 0.048483725 13.279707 39.757232 6718.5786 2.2909867e+08 0.053696666 0.050713601 13.204915 39.651645 6721.1014 2.1907376e+08 0.053780220 0.050334438 13.128887 39.543659 6723.6241 2.0850305e+08 0.052325926 0.049717002 13.044733 39.419902 6726.1468 1.9670935e+08 0.048251621 0.040952691 12.960580 39.296702 6728.6695 1.8199917e+08 0.047779409 0.040577020 12.876438 39.177912 6731.1922 1.7132565e+08 0.046043439 0.042132603 12.793555 39.059929 6733.7150 1.6433920e+08 0.044793315 0.047805986 12.723162 38.949941 6736.2377 1.5956890e+08 0.046535062 0.051253531 12.652770 38.839952 6738.7604 1.5570313e+08 0.047783107 0.061507380 12.571122 38.722761 6741.2831 1.4756618e+08 0.046547084 0.066566129 12.486981 38.603974 6743.8058 1.4175551e+08 0.041683608 0.076483518 12.406789 38.481235 6746.3285 1.3595980e+08 0.038967720 0.075167582 12.327597 38.357497 6748.8513 1.3052739e+08 0.036361427 0.071495424 12.248405 38.237608 6751.3740 1.2477016e+08 0.032717919 0.073869793 12.169212 38.118818 6753.8967 1.1913667e+08 0.030406776 0.075879175 12.090019 37.996280 6756.4194 1.1584920e+08 0.027546877 0.075246136 12.010826 37.872542 6758.9421 1.1003288e+08 0.027927767 0.075697597 11.931634 37.752451 6761.4649 1.0299890e+08 0.030027977 0.078006631 11.852442 37.633661 6763.9876 95274141. 0.034975278 0.079445445 11.779549 37.524323 6766.5103 89486671. 0.036364679 0.080868041 11.709148 37.418722 6769.0330 87776690. 0.031430535 0.084534330 11.637041 37.305069 6771.5557 84149721. 0.026985221 0.090653032 11.562798 37.181331 6774.0784 79638987. 0.022609246 0.096771734 11.481667 37.052500 6776.6012 74564541. 0.018296377 0.10289044 11.391159 36.916738 6779.1239 69826442. 0.014002529 0.10900914 11.311316 36.792106 6781.6466 68053483. 0.0096416618 0.11512784 11.237073 36.673318 6784.1693 64859493. 0.0053250199 0.12124654 11.162830 36.551385 6786.6920 62396449. 0.00099515138 0.12736524 11.088588 36.427647 6789.2148 60686374. -0.0033534175 0.13348395 11.014345 36.306952 6791.7375 58338029. -0.0076759807 0.13960265 10.940102 36.188162 6794.2602 59901504. -0.012122979 0.14572135 10.865859 36.066431 6796.7829 57128170. -0.016427826 0.15184005 10.791616 35.942693 6799.3056 52183479. -0.020640460 0.15795875 10.717373 35.821797 6801.8284 48917162. -0.024892652 0.16407745 10.643130 35.703010 6804.3511 47397518. -0.029210717 0.17019616 10.566145 35.574822 6806.8738 49960891. -0.033698041 0.17631486 10.486951 35.439059 6809.3965 49876757. -0.038070336 0.18243356 10.411648 35.312747 6811.9192 50326868. -0.042463881 0.18855226 10.337405 35.189009 6814.4419 47853435. -0.046736788 0.19467096 10.266944 35.069046 6816.9647 50666015. -0.051215495 0.20078967 10.197640 34.950238 6819.4874 51849396. -0.055621828 0.20690837 10.120964 34.818794 6822.0101 48566375. -0.059863134 0.21302707 10.041769 34.683033 6824.5328 47650270. -0.064178488 0.21914577 9.9674161 34.563865 6827.0555 42459741. -0.068282306 0.22526447 9.8931734 34.445076 6829.5783 41708254. -0.072550684 0.23138317 9.8141903 34.304624 6832.1010 41879730. -0.076842197 0.23750188 9.7378092 34.167493 6834.6237 40421855. -0.081027558 0.24362058 9.6734654 34.048705 6837.1464 38959808. -0.085187411 0.24973928 9.6066108 33.927048 6839.6691 38267079. -0.089371491 0.25585798 9.5274166 33.791286 6842.1919 37780192. -0.093540221 0.26197668 9.4482226 33.655524 6844.7146 34921793. -0.097466153 0.26809539 9.3690289 33.519764 6847.2373 33180531. -0.10138517 0.27421409 9.2961064 33.391620 6849.7600 29625183. -0.10491065 0.28033279 9.2268129 33.267882 6852.2827 30667608. -0.10885549 0.28645149 9.1549174 33.136772 6854.8054 32978344. -0.11269926 0.29257019 9.0813795 33.001009 6857.3282 33912928. -0.11576175 0.29868890 9.0078420 32.865248 6859.8509 34190450. -0.11209926 0.30480760 8.9338666 32.729488 6862.3736 34213058. -0.12300046 0.31092630 8.8546729 32.593726 6864.8963 34404826. -0.14164559 0.31704500 8.7772306 32.457964