# # 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 = 42.334140 km # Date (UTC) = 2016-01-18T10:13:01.845 # Date (julian) = 2457405.92571580 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6492.3776 9.7145627e+10 0.022176824 0.029984703 -30.123541 53.972265 6494.1445 9.1581415e+10 0.026825188 0.030517490 -30.241982 53.869671 6495.9113 8.5254696e+10 0.031466260 0.031050277 -30.356875 53.770626 6497.6782 7.9099875e+10 0.036157923 0.031583064 -30.471768 53.671580 6499.4450 7.2936701e+10 0.040971920 0.032115850 -30.580338 53.579719 6501.2118 6.8133836e+10 0.046168082 0.032648637 -30.684333 53.493057 6502.9787 6.4393600e+10 0.051959521 0.033181424 -30.788329 53.406394 6504.7455 6.0931300e+10 0.058416006 0.033714211 -30.897147 53.308363 6506.5124 5.7084595e+10 0.065492050 0.034246998 -31.008079 53.205355 6508.2792 5.3131800e+10 0.073275564 0.034779784 -31.119689 53.103026 6510.0461 4.8980836e+10 0.081727221 0.035312571 -31.234581 53.003981 6511.8129 4.5252791e+10 0.091059911 0.035845358 -31.349473 52.904936 6513.5797 4.1821747e+10 0.10122379 0.036378145 -31.461801 52.803326 6515.3466 3.8522566e+10 0.11212941 0.036910932 -31.572732 52.700320 6517.1134 3.5553206e+10 0.12378738 0.037443718 -31.683175 52.597802 6518.8803 3.2754209e+10 0.13599745 0.037976505 -31.790145 52.498756 6520.6471 3.0158123e+10 0.14859280 0.038509292 -31.897114 52.399710 6522.4140 2.7715296e+10 0.16023939 0.039025651 -32.006457 52.298291 6524.1808 2.5362789e+10 0.16735113 0.039491190 -32.117388 52.195283 6525.9476 2.3237402e+10 0.17200015 0.039674062 -32.226759 52.093501 6527.7145 2.1413745e+10 0.17670229 0.041235197 -32.316888 52.006838 6529.4813 1.9954348e+10 0.17863252 0.043002499 -32.407017 51.920175 6531.2482 1.8724405e+10 0.17948825 0.045589896 -32.500349 51.830403 6533.0150 1.7505405e+10 0.18108422 0.047525968 -32.607318 51.727396 6534.7819 1.6303448e+10 0.18101387 0.048163273 -32.714287 51.624390 6536.5487 1.5105201e+10 0.17955258 0.048281438 -32.818617 51.521383 6538.3155 1.4032021e+10 0.17913369 0.049310334 -32.921623 51.418377 6540.0824 1.3050375e+10 0.17876029 0.050893023 -33.024630 51.315933 6541.8492 1.2109527e+10 0.17652930 0.051051131 -33.127638 51.216888 6543.6161 1.1240184e+10 0.17473215 0.051543584 -33.230646 51.117842 6545.3829 1.0473428e+10 0.17339447 0.052458997 -33.323554 51.024306 6547.1498 9.8630786e+09 0.17195726 0.053344315 -33.410217 50.934176 6548.9166 9.3533156e+09 0.16972297 0.053941374 -33.496879 50.844046 6550.6834 8.8558654e+09 0.16827578 0.055156488 -33.592621 50.744475 6552.4503 8.3245532e+09 0.16682414 0.055473430 -33.691667 50.641468 6554.2171 7.7697346e+09 0.16438136 0.054836937 -33.790712 50.538461 6555.9840 7.2332661e+09 0.16191905 0.054026592 -33.889758 50.435453 6557.7508 6.7369854e+09 0.16001007 0.053395494 -33.988803 50.332445 6559.5177 6.3038413e+09 0.15704368 0.052328752 -34.079366 50.240634 6561.2845 5.9532874e+09 0.15348074 0.051232485 -34.166029 50.153971 6563.0513 5.6578452e+09 0.15039866 0.049868974 -34.252691 50.067308 6564.8182 5.3744449e+09 0.14752252 0.048400795 -34.346092 49.967566 6566.5850 5.0712330e+09 0.14498307 0.046851935 -34.441175 49.864559 6568.3519 4.7506166e+09 0.14328355 0.045448207 -34.536259 49.761552 6570.1187 4.4353655e+09 0.14208042 0.044868333 -34.631343 49.658544 6571.8856 4.1397945e+09 0.14050604 0.044261412 -34.726427 49.555536 6573.6524 3.8811545e+09 0.13843995 0.043133945 -34.809963 49.462215 6575.4192 3.6765608e+09 0.13661037 0.041954074 -34.889693 49.372086 6577.1861 3.4978755e+09 0.13442273 0.039928074 -34.969423 49.281957 6578.9529 3.3246725e+09 0.13164101 0.037144826 -35.059033 49.180657 6580.7198 3.1434828e+09 0.12956264 0.035855579 -35.150155 49.077649 6582.4866 2.9531347e+09 0.12776148 0.035161373 -35.241276 48.974642 6584.2535 2.7720266e+09 0.12564545 0.034377442 -35.332397 48.871636 6586.0203 2.5904035e+09 0.12362808 0.033171034 -35.423519 48.768629 6587.7871 2.4376876e+09 0.12212078 0.033332770 -35.505309 48.676171 6589.5540 2.3083934e+09 0.11989830 0.031946916 -35.585039 48.586042 6591.3208 2.2067683e+09 0.11711362 0.028839890 -35.664769 48.495913 6593.0877 2.1092318e+09 0.11472299 0.027020711 -35.751441 48.393750 6594.8545 1.9949530e+09 0.11216345 0.025703435 -35.838602 48.290742 6596.6214 1.8767438e+09 0.10932418 0.025724449 -35.921291 48.193019 6598.3882 1.7826280e+09 0.10706088 0.025221824 -35.997555 48.102890 6600.1550 1.7067140e+09 0.10583829 0.025308619 -36.073819 48.012761 6601.9219 1.6378158e+09 0.10456054 0.027479847 -36.155810 47.915863 6603.6887 1.5653297e+09 0.10276695 0.026255547 -36.242970 47.812855 6605.4556 1.4807102e+09 0.10228104 0.027047233 -36.330106 47.709847 6607.2224 1.4039037e+09 0.10105937 0.025267806 -36.413322 47.606841 6608.9893 1.3260496e+09 0.098614515 0.023706215 -36.496520 47.503835 6610.7561 1.2534813e+09 0.096405027 0.024725417 -36.576407 47.406975 6612.5229 1.1978563e+09 0.095286101 0.023930027 -36.652669 47.316845 6614.2898 1.1492469e+09 0.094381040 0.023740840 -36.728932 47.226714 6616.0566 1.1026671e+09 0.093034119 0.023291187 -36.806957 47.128953 6617.8235 1.0518439e+09 0.092604436 0.023712270 -36.886193 47.025947 6619.5903 1.0000335e+09 0.092048167 0.024668348 -36.964988 46.923823 6621.3572 9.5749058e+08 0.091176183 0.024971064 -37.037785 46.833693 6623.1240 9.2226113e+08 0.089833002 0.024537767 -37.110582 46.743563 6624.8908 8.8876757e+08 0.088578409 0.025339175 -37.185290 46.651066 6626.6577 8.5134368e+08 0.086917963 0.025752947 -37.268489 46.548059 6628.4245 8.1259112e+08 0.085843840 0.025875459 -37.351688 46.445053 6630.1914 7.7697889e+08 0.084617590 0.025928773 -37.425738 46.350542 6631.9582 7.4592971e+08 0.083056875 0.026028101 -37.495069 46.260413 6633.7251 7.2343742e+08 0.081684246 0.026278841 -37.564399 46.170285 6635.4919 6.9912213e+08 0.080348432 0.026473556 -37.641405 46.070175 6637.2587 6.7134923e+08 0.079103445 0.026034686 -37.720640 45.967167 6639.0256 6.4199499e+08 0.078029696 0.025618929 -37.799876 45.864160 6640.7924 6.0686084e+08 0.078620871 0.025173697 -37.879113 45.761152 6642.5593 5.7619751e+08 0.078437422 0.025174583 -37.958350 45.658145 6644.3261 5.4975556e+08 0.077650171 0.025378852 -38.027874 45.564487 6646.0930 5.3244125e+08 0.076933941 0.025968267 -38.093747 45.474344 6647.8598 5.1335454e+08 0.076358196 0.026890470 -38.159620 45.384200 6649.6266 4.9181292e+08 0.075781403 0.026769886 -38.233415 45.283220 6651.3935 4.6884016e+08 0.075584522 0.026785718 -38.308690 45.180214 6653.1603 4.4330105e+08 0.075503293 0.027607521 -38.380969 45.081307 6654.9272 4.2938280e+08 0.074594070 0.027641240 -38.446832 44.991177 6656.6940 4.1377849e+08 0.073063715 0.028632553 -38.512695 44.901047 6658.4609 4.0191254e+08 0.071917445 0.030878425 -38.582640 44.805333 6660.2277 3.8601887e+08 0.070917642 0.031832969 -38.657915 44.702327 6661.9945 3.6393793e+08 0.069810883 0.033041494 -38.733190 44.599321 6663.7614 3.4626668e+08 0.068794699 0.032272213 -38.808465 44.496314 6665.5282 3.2625752e+08 0.068888637 0.027681603 -38.883739 44.393307 6667.2951 3.0828279e+08 0.068516704 0.027211844 -38.954050 44.295263 6669.0619 2.9553318e+08 0.067427120 0.028292108 -39.016448 44.205133 6670.8288 2.8521872e+08 0.067538748 0.026944681 -39.078845 44.115003 6672.5956 2.7594022e+08 0.067189123 0.027224822 -39.147689 44.018426 6674.3624 2.6174298e+08 0.066205588 0.029260539 -39.222963 43.915419 6676.1293 2.4685517e+08 0.064240159 0.031797051 -39.298237 43.812413 6677.8961 2.3404654e+08 0.063382558 0.031084272 -39.360936 43.721981 6679.6630 2.2816853e+08 0.063176761 0.029719918 -39.423333 43.631851 6681.4298 2.2333103e+08 0.063803855 0.029987108 -39.486185 43.540539 6683.1967 2.1499169e+08 0.064223582 0.031476791 -39.553537 43.437533 6684.9635 2.0811752e+08 0.064106034 0.032702986 -39.620888 43.334526 6686.7303 1.9827995e+08 0.062865101 0.034186012 -39.690489 43.231518 6688.4972 1.8771651e+08 0.060698037 0.033899959 -39.761802 43.128510 6690.2640 1.7875490e+08 0.059518290 0.033085605 -39.832575 43.025912 6692.0309 1.7069909e+08 0.058642515 0.032729475 -39.891505 42.932316 6693.7977 1.6536525e+08 0.057869552 0.031330422 -39.950435 42.838720 6695.5646 1.6230476e+08 0.057748632 0.029755770 -40.011333 42.743629 6697.3314 1.5737090e+08 0.057195162 0.030133205 -40.082645 42.640623 6699.0982 1.5283014e+08 0.056051464 0.031499778 -40.153958 42.537616 6700.8651 1.4831485e+08 0.054561141 0.031309380 -40.222755 42.434610 6702.6319 1.3813252e+08 0.054007461 0.033381332 -40.290105 42.331603 6704.3988 1.3010551e+08 0.054161374 0.036373373 -40.356139 42.230023 6706.1656 1.2187117e+08 0.054042276 0.038734651 -40.411603 42.139893 6707.9325 1.1970042e+08 0.053824207 0.040053252 -40.467068 42.049763 6709.6993 1.2335207e+08 0.053056889 0.040687751 -40.525218 41.956723 6711.4661 1.1827258e+08 0.051433327 0.041222581 -40.592570 41.853716 6713.2330 1.1210972e+08 0.049807296 0.044529302 -40.659922 41.750709 6714.9998 1.0588666e+08 0.048209737 0.047378418 -40.727273 41.647701 6716.7667 1.0299823e+08 0.046583539 0.049530604 -40.794623 41.544693 6718.5335 1.0094534e+08 0.044819759 0.050643330 -40.861268 41.441685 6720.3004 94716001. 0.044489177 0.050384964 -40.924657 41.338679 6722.0672 87824068. 0.044364958 0.050522121 -40.988046 41.235673 6723.8340 83717730. 0.042674213 0.049834107 -41.046255 41.141084 6725.6009 80556149. 0.039046359 0.041200672 -41.101719 41.050954 6727.3677 79562054. 0.038000446 0.040470459 -41.157183 40.960824 6729.1346 77342690. 0.037423450 0.040955728 -41.218742 40.860792 6730.9014 73178178. 0.035381434 0.041614859 -41.282132 40.757786 6732.6683 72552679. 0.033604994 0.043863234 -41.345523 40.654779 6734.4351 67781274. 0.031326646 0.049327420 -41.408912 40.551770 6736.2019 63004696. 0.028321359 0.051118484 -41.472301 40.448762 6737.9688 59322535. 0.0036689285 0.057221674 -41.535690 40.345755 6739.7356 54176934. 0.022608316 0.063726828 -41.599079 40.242748 6741.5025 55645316. 0.068916684 0.067191785 -41.660228 40.142275