# # 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 = 38.036525 km # Date (UTC) = 2017-01-09T10:13:24.191 # Date (julian) = 2457762.92597443 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6513.8232 5.8188640e+10 0.12397838 0.036451549 -33.636778 49.553221 6515.3586 5.2405737e+10 0.13166129 0.036914568 -33.712092 49.477906 6516.8941 4.7825093e+10 0.13950175 0.037377588 -33.787407 49.402592 6518.4296 4.3389437e+10 0.14734799 0.037840608 -33.862722 49.327277 6519.9651 3.9956387e+10 0.15535523 0.038303627 -33.938036 49.251963 6521.5006 3.6852335e+10 0.16340653 0.038766647 -34.013350 49.176648 6523.0360 3.3910861e+10 0.16861605 0.039188046 -34.088665 49.101334 6524.5715 3.1327678e+10 0.17270312 0.039629995 -34.163980 49.023460 6526.1070 2.8775354e+10 0.17467246 0.039780263 -34.239294 48.945133 6527.6425 2.6562358e+10 0.17844617 0.041182918 -34.314609 48.866807 6529.1780 2.4477395e+10 0.18006648 0.042519255 -34.388327 48.790077 6530.7134 2.2761590e+10 0.18163335 0.044827495 -34.460629 48.714762 6532.2489 2.1176780e+10 0.18377303 0.046892134 -34.532932 48.639448 6533.7844 1.9716011e+10 0.18358730 0.047852931 -34.605871 48.564131 6535.3199 1.8320004e+10 0.18335058 0.048085536 -34.681197 48.488805 6536.8554 1.6991879e+10 0.18259888 0.048555808 -34.756522 48.413480 6538.3908 1.5708849e+10 0.18142734 0.049346996 -34.831848 48.338154 6539.9263 1.4518997e+10 0.18063950 0.050764904 -34.901791 48.260151 6541.4618 1.3353466e+10 0.17781623 0.051176774 -34.971080 48.181823 6542.9973 1.2281661e+10 0.17583085 0.051380857 -35.040370 48.103495 6544.5327 1.1395352e+10 0.17387630 0.052076524 -35.106785 48.031682 6546.0682 1.0641282e+10 0.17130861 0.052520667 -35.171052 47.964737 6547.6037 1.0050402e+10 0.17019926 0.053516943 -35.235320 47.897792 6549.1392 9.5077823e+09 0.16794728 0.054108122 -35.299588 47.830847 6550.6747 8.9461386e+09 0.16635909 0.055154290 -35.368064 47.756889 6552.2101 8.4044708e+09 0.16496283 0.055533873 -35.437353 47.681574 6553.7456 7.8520347e+09 0.16259660 0.054960252 -35.506642 47.606259 6555.2811 7.3310184e+09 0.16094111 0.054617171 -35.575932 47.529383 6556.8166 6.8750371e+09 0.15874239 0.053893073 -35.645221 47.451056 6558.3521 6.4276246e+09 0.15640022 0.052939305 -35.714510 47.372730 6559.8875 6.0470878e+09 0.15416185 0.052287003 -35.783799 47.295003 6561.4230 5.6859750e+09 0.15113134 0.051164226 -35.853088 47.219688 6562.9585 5.3439391e+09 0.14873014 0.049967858 -35.922378 47.144373 6564.4940 5.0371221e+09 0.14603637 0.048547727 -35.991667 47.069059 6566.0295 4.7393497e+09 0.14332902 0.047166221 -36.058307 46.993744 6567.5649 4.4543200e+09 0.14154637 0.046139520 -36.124584 46.918430 6569.1004 4.1912174e+09 0.13905009 0.044858960 -36.190861 46.843115 6570.6359 3.9223714e+09 0.13724642 0.044654100 -36.257143 46.766106 6572.1714 3.6767000e+09 0.13518154 0.044132015 -36.323429 46.687767 6573.7069 3.4545818e+09 0.13238926 0.043090250 -36.389715 46.609427 6575.2423 3.2358456e+09 0.13017218 0.042131574 -36.454220 46.533838 6576.7778 3.0611099e+09 0.12762583 0.040476118 -36.513132 46.466893 6578.3133 2.9072227e+09 0.12516158 0.038154894 -36.572045 46.399948 6579.8488 2.7828171e+09 0.12315445 0.036603892 -36.630957 46.333003 6581.3842 2.6740795e+09 0.12096319 0.035480254 -36.692075 46.260287 6582.9197 2.5391113e+09 0.11948117 0.035043511 -36.755339 46.181960 6584.4552 2.4027630e+09 0.11768787 0.034267543 -36.818603 46.103634 6585.9907 2.2703474e+09 0.11583176 0.033178743 -36.882432 46.025872 6587.5262 2.1400582e+09 0.11465632 0.033274947 -36.948710 45.950558 6589.0616 2.0356167e+09 0.11279712 0.032923683 -37.014987 45.875243 6590.5971 1.9312310e+09 0.11086175 0.029951326 -37.081264 45.799928 6592.1326 1.8336477e+09 0.10891783 0.027944730 -37.144925 45.724614 6593.6681 1.7387170e+09 0.10690776 0.026481109 -37.208189 45.649299 6595.2036 1.6465420e+09 0.10487689 0.025644681 -37.271453 45.573985 6596.7390 1.5537591e+09 0.10268043 0.025723914 -37.334717 45.497017 6598.2745 1.4652606e+09 0.10107982 0.025276101 -37.397981 45.418689 6599.8100 1.3816618e+09 0.10031763 0.024978447 -37.461245 45.340361 6601.3455 1.3003677e+09 0.099789558 0.027208389 -37.522284 45.264642 6602.8810 1.2453842e+09 0.098632492 0.026764862 -37.575847 45.197688 6604.4164 1.2004585e+09 0.097274225 0.026318541 -37.629411 45.130734 6605.9519 1.1675744e+09 0.096431440 0.027463623 -37.682974 45.063780 6607.4874 1.1303567e+09 0.094493525 0.024744579 -37.741344 44.991191 6609.0229 1.0854572e+09 0.091755053 0.023712725 -37.804608 44.912865 6610.5584 1.0357503e+09 0.089516534 0.024536470 -37.867872 44.834538 6612.0938 9.8799239e+08 0.088078552 0.024250645 -37.930605 44.756742 6613.6293 9.4618797e+08 0.087508063 0.023804485 -37.990857 44.681427 6615.1648 9.0483186e+08 0.086792189 0.023256602 -38.051109 44.606112 6616.7003 8.7293395e+08 0.085825230 0.023392206 -38.111361 44.530798 6618.2357 8.3857235e+08 0.085549910 0.023948812 -38.171613 44.452902 6619.7712 7.9755705e+08 0.085238631 0.024711998 -38.231865 44.374574 6621.3067 7.6121303e+08 0.084579556 0.024987788 -38.292117 44.296247 6622.8422 7.2121462e+08 0.083718552 0.024533831 -38.350750 44.219538 6624.3777 6.9054194e+08 0.082544143 0.025064471 -38.407988 44.144223 6625.9131 6.6452956e+08 0.081812355 0.026487256 -38.465227 44.068908 6627.4486 6.4218001e+08 0.080317762 0.025490106 -38.523122 43.992937 6628.9841 6.2091821e+08 0.079493008 0.026102649 -38.583374 43.914611 6630.5196 5.9015574e+08 0.078474239 0.025929582 -38.643626 43.836284 6632.0551 5.5458248e+08 0.077454231 0.026038947 -38.703878 43.757958 6633.5905 5.2068850e+08 0.076591322 0.026255355 -38.761423 43.682337 6635.1260 5.0065721e+08 0.075656549 0.026418686 -38.818663 43.607023 6636.6615 4.8147270e+08 0.074504977 0.026292867 -38.875903 43.531708 6638.1970 4.6264798e+08 0.073819788 0.025663061 -38.929459 43.459689 6639.7325 4.4247368e+08 0.073668660 0.025366279 -38.980337 43.390067 6641.2679 4.2464922e+08 0.073900748 0.025149210 -39.031216 43.320444 6642.8034 4.1483842e+08 0.073484646 0.025184574 -39.082094 43.250821 6644.3389 3.9900905e+08 0.072630196 0.025380233 -39.138351 43.176381 6645.8744 3.8396380e+08 0.071942378 0.025861294 -39.195598 43.101056 6647.4098 3.6862939e+08 0.071334090 0.026653567 -39.252845 43.025730 6648.9453 3.5158424e+08 0.070539459 0.027597090 -39.310089 42.950410 6650.4808 3.3514561e+08 0.070537416 0.026365307 -39.367328 42.875096 6652.0163 3.2271572e+08 0.070239317 0.027255002 -39.424568 42.799781 6653.5518 3.1602361e+08 0.069870342 0.027807373 -39.481186 42.723845 6655.0872 3.0123100e+08 0.069007697 0.027646266 -39.535413 42.645518 6656.6227 2.8608266e+08 0.067621799 0.028569979 -39.589639 42.567190 6658.1582 2.6676174e+08 0.066720975 0.030341656 -39.643866 42.488862 6659.6937 2.5173897e+08 0.065674756 0.031689896 -39.698092 42.413207 6661.2292 2.4120931e+08 0.064591109 0.032651666 -39.752319 42.337892 6662.7646 2.3216412e+08 0.063728619 0.032615263 -39.806545 42.262578 6664.3001 2.2212993e+08 0.062784862 0.031107963 -39.860771 42.185554 6665.8356 2.0840016e+08 0.062796449 0.027177972 -39.914997 42.107227 6667.3711 2.0242753e+08 0.062261380 0.027239761 -39.969223 42.028900 6668.9066 1.9180165e+08 0.061145217 0.028273012 -40.023449 41.951320 6670.4420 1.8678137e+08 0.061170660 0.027123844 -40.077675 41.876006 6671.9775 1.8049119e+08 0.060826160 0.026879279 -40.131902 41.800691 6673.5130 1.7040345e+08 0.060169205 0.028226438 -40.186128 41.725377 6675.0485 1.6651447e+08 0.058842989 0.029891201 -40.240355 41.647264 6676.5840 1.6149441e+08 0.057001309 0.032090078 -40.294581 41.568936 6678.1194 1.5736889e+08 0.056394543 0.030856733 -40.348808 41.490609 6679.6549 1.5250893e+08 0.056291814 0.029726583 -40.401199 41.414117 6681.1904 1.4524515e+08 0.056834403 0.029803422 -40.452414 41.338802 6682.7259 1.3812874e+08 0.057178798 0.030979134 -40.503628 41.263488 6684.2613 1.3347892e+08 0.057097255 0.032667354 -40.555716 41.187300 6685.7968 1.3067670e+08 0.056728521 0.033546483 -40.609942 41.108973 6687.3323 1.2754187e+08 0.055124435 0.034157570 -40.664169 41.030646 6688.8678 1.2288463e+08 0.052977381 0.033985505 -40.718396 40.952319 6690.4033 1.1636881e+08 0.052156155 0.033069649 -40.769706 40.876905 6691.9387 1.1189645e+08 0.051336187 0.032779781 -40.820927 40.801579 6693.4742 1.0611218e+08 0.050621025 0.031441401 -40.872148 40.726253 6695.0097 1.0239001e+08 0.050362504 0.029857692 -40.923365 40.648972 6696.5452 95296033. 0.049767877 0.029902297 -40.974579 40.570644 6698.0807 87874541. 0.048823757 0.030328532 -41.025793 40.492317 6699.6161 80661822. 0.047284022 0.031021912 -41.076007 40.414989 6701.1516 77615600. 0.045875151 0.031631913 -41.124208 40.339675 6702.6871 78552925. 0.045988539 0.033425381 -41.172410 40.264361 6704.2226 76589888. 0.046195925 0.036286850 -41.220657 40.189046 6705.7581 75534003. 0.046370428 0.038016276 -41.271862 40.113732 6707.2935 73167458. 0.046066459 0.040144778 -41.323076 40.038417 6708.8290 70884222. 0.045581039 0.040946345 -41.374289 39.963103 6710.3645 67898737. 0.044343952 0.040567840 -41.425503 39.885700 6711.9000 64123436. 0.042392123 0.041716154 -41.476718 39.807373 6713.4355 65265843. 0.041211642 0.045261557 -41.527933 39.729046 6714.9709 65209266. 0.039859558 0.047376403 -41.580595 39.647822 6716.5064 61404393. 0.037613178 0.049147254 -41.635684 39.561747 6718.0419 58563703. 0.035153577 0.049877652 -41.690772 39.475671 6719.5774 54427687. 0.032171529 0.050821298 -41.742627 39.393232 6721.1128 56080719. 0.031437486 0.050337900 -41.790829 39.314905 6722.6483 55655364. 0.028093421 0.049803705 -41.839030 39.236577 6724.1838 49333429. 0.017421865 0.048391772 -41.887231 39.158701 6725.7193 45759280. -0.022941636 0.041126718 -41.935432 39.083387 6727.2548 45384306. 0.0027571041 0.040620969 -41.983633 39.008072 6730.3257 48194789. 0.067654805 0.040825506 -42.080036 38.857443