# # 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 = 64.163749 km # Date (UTC) = 2014-12-21T09:32:50.005 # Date (julian) = 2457012.89780098 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6507.3060 4.9423124e+10 0.078038834 0.034486329 113.28474 28.561559 6509.7311 4.6015013e+10 0.089331174 0.035217599 113.34396 28.447370 6512.1562 4.2528897e+10 0.10082115 0.035948869 113.40317 28.333182 6514.5812 3.9096145e+10 0.11251034 0.036680140 113.45864 28.215253 6517.0063 3.5834638e+10 0.12441325 0.037411410 113.51361 28.096836 6519.4313 3.2884707e+10 0.13659322 0.038142680 113.56859 27.980618 6521.8564 3.0134060e+10 0.14901431 0.038873951 113.62357 27.866430 6524.2815 2.7620026e+10 0.15533424 0.039526953 113.67921 27.752239 6526.7065 2.5258776e+10 0.16049069 0.040408797 113.73842 27.638036 6529.1316 2.3028654e+10 0.16404796 0.042445390 113.79764 27.523832 6531.5566 2.0989499e+10 0.16747466 0.046038884 113.85351 27.409640 6533.9817 1.9103216e+10 0.16927619 0.047936783 113.90849 27.295452 6536.4068 1.7416715e+10 0.16954089 0.048154445 113.96347 27.181263 6538.8318 1.5914261e+10 0.17030286 0.049561736 114.01845 27.067074 6541.2569 1.4590621e+10 0.17005395 0.051243223 114.07342 26.952886 6543.6819 1.3391901e+10 0.16916072 0.051560873 114.12840 26.838698 6546.1070 1.2294304e+10 0.16781336 0.052552575 114.18338 26.724511 6548.5321 1.1295754e+10 0.16681079 0.053826539 114.23837 26.610312 6550.9571 1.0371621e+10 0.16494595 0.055225016 114.29336 26.496109 6553.3822 9.5593927e+09 0.16322449 0.055142948 114.34693 26.381910 6555.8072 8.8287147e+09 0.16062638 0.054175086 114.39768 26.267722 6558.2323 8.1801807e+09 0.15848052 0.053041352 114.44843 26.153533 6560.6574 7.6005330e+09 0.15561564 0.051681610 114.50328 26.043443 6563.0824 7.0885068e+09 0.15307876 0.049833020 114.55826 25.933483 6565.5075 6.6301604e+09 0.15071747 0.047742141 114.61324 25.820968 6567.9325 6.2113494e+09 0.14909155 0.045828697 114.66822 25.706780 6570.3576 5.8174456e+09 0.14772617 0.044769377 114.72218 25.592589 6572.7827 5.4499266e+09 0.14618743 0.043781944 114.77294 25.478386 6575.2077 5.1194304e+09 0.14427924 0.042166295 114.82370 25.364182 6577.6328 4.8247578e+09 0.14202636 0.039226422 114.87815 25.249992 6580.0578 4.5716980e+09 0.13969517 0.036467297 114.93313 25.135803 6582.4829 4.3211467e+09 0.13753029 0.035162383 114.98919 25.014315 6584.9080 4.0503991e+09 0.13568576 0.034020909 115.04629 24.885851 6587.3330 3.7806900e+09 0.13384892 0.033232155 115.10079 24.764966 6589.7581 3.5399593e+09 0.13187021 0.031542008 115.15153 24.655006 6592.1831 3.3455489e+09 0.12917201 0.027895638 115.20228 24.544856 6594.6082 3.1786533e+09 0.12641255 0.025838649 115.25304 24.430653 6597.0333 3.0211073e+09 0.12331477 0.025712231 115.30380 24.316451 6599.4583 2.8669226e+09 0.12133459 0.024957296 115.35455 24.202257 6601.8834 2.7239568e+09 0.12052600 0.027461713 115.40530 24.088069 6604.3084 2.5889743e+09 0.11859120 0.026254420 115.45606 23.975218 6606.7335 2.4588562e+09 0.11750486 0.026185882 115.50680 23.865259 6609.1586 2.3408328e+09 0.11432637 0.023753032 115.55755 23.755300 6611.5836 2.2282060e+09 0.11180237 0.024586277 115.60830 23.641315 6614.0087 2.1248455e+09 0.11110719 0.023934511 115.65905 23.527127 6616.4337 2.0232848e+09 0.10996549 0.023350375 115.70981 23.415413 6618.8588 1.9319916e+09 0.10956723 0.024419293 115.76057 23.305440 6621.2839 1.8447791e+09 0.10896958 0.024995359 115.81132 23.194526 6623.7089 1.7643174e+09 0.10733999 0.024754470 115.86207 23.080338 6626.1340 1.6925509e+09 0.10611505 0.026420199 115.91282 22.966150 6628.5590 1.6209575e+09 0.10447875 0.025930071 115.95994 22.855593 6630.9841 1.5614791e+09 0.10266002 0.025930727 116.00646 22.745634 6633.4092 1.4984955e+09 0.10115983 0.026223688 116.05821 22.626533 6635.8342 1.4271917e+09 0.099494678 0.026524892 116.11530 22.498069 6638.2593 1.3535808e+09 0.098333552 0.025660346 116.16825 22.376864 6640.6843 1.2825992e+09 0.098505583 0.025186922 116.21477 22.266904 6643.1094 1.2209201e+09 0.098034642 0.025209137 116.26141 22.156827 6645.5345 1.1741866e+09 0.096600576 0.025702059 116.31217 22.042623 6647.9595 1.1276641e+09 0.095183903 0.026942972 116.36292 21.928420 6650.3846 1.0815193e+09 0.094036344 0.026343278 116.41087 21.817033 6652.8096 1.0428860e+09 0.093153757 0.027473286 116.45739 21.707074 6655.2347 1.0009031e+09 0.091360955 0.027707195 116.50707 21.593004 6657.6598 9.5636745e+08 0.089148005 0.029666412 116.56417 21.469299 6660.0848 9.1201197e+08 0.087438286 0.031703095 116.61918 21.347471 6662.5099 8.6852698e+08 0.085902626 0.032758199 116.66570 21.233282 6664.9349 8.3320766e+08 0.085210166 0.028785182 116.71222 21.119093 6667.3600 8.0370520e+08 0.084786396 0.027235692 116.75875 21.008415 6669.7851 7.7440902e+08 0.083986968 0.027549391 116.80528 20.898441 6672.2101 7.4560145e+08 0.083786071 0.027001388 116.85453 20.782033 6674.6352 7.1435490e+08 0.082581464 0.029490607 116.90686 20.658327 6677.0602 6.8308356e+08 0.080217202 0.032272581 116.95707 20.539664 6679.4853 6.5204663e+08 0.079970223 0.029866742 117.00359 20.429705 6681.9104 6.2709372e+08 0.080903969 0.030355772 117.05011 20.319736 6684.3354 6.0675691e+08 0.080991390 0.032671113 117.09663 20.205547 6686.7605 5.8426653e+08 0.079543350 0.034203543 117.14315 20.091358 6689.1855 5.6137334e+08 0.076439299 0.033849010 117.19338 19.971100 6691.6106 5.3497109e+08 0.075338353 0.032857202 117.24572 19.847395 6694.0357 5.1466649e+08 0.074107075 0.031211050 117.29494 19.731050 6696.4607 4.9899033e+08 0.073694693 0.029867205 117.34147 19.621076 6698.8858 4.8476185e+08 0.072177481 0.031433650 117.38899 19.508743 6701.3108 4.6753704e+08 0.070017125 0.031865534 117.44133 19.385037 6703.7359 4.4376286e+08 0.069842902 0.035516686 117.49296 19.262294 6706.1610 4.2526887e+08 0.069652776 0.038726539 117.53525 19.152335 6708.5860 4.0746421e+08 0.068934545 0.040681731 117.57754 19.042376 6711.0111 3.9311183e+08 0.066950015 0.040704836 117.62692 18.922718 6713.4361 3.7608811e+08 0.064510979 0.045264040 117.67926 18.799011 6715.8612 3.6142082e+08 0.062376622 0.048259396 117.72553 18.683605 6718.2863 3.4994347e+08 0.059957545 0.050258238 117.76783 18.573646 6720.7113 3.3763554e+08 0.059484659 0.050337348 117.81253 18.460398 6723.1364 3.2704894e+08 0.058480623 0.049445004 117.86486 18.336692 6725.5614 3.1225807e+08 0.054144469 0.041225317 117.91655 18.212983 6727.9865 2.9930371e+08 0.053174416 0.039646090 117.96413 18.089259 6730.4116 2.8681557e+08 0.051659149 0.040943197 118.01168 17.966031 6732.8366 2.7684458e+08 0.050170430 0.043894227 118.05820 17.856071 6735.2617 2.6822492e+08 0.050408749 0.049571221 118.10472 17.746112 6737.6867 2.6244235e+08 0.052044078 0.056323181 118.15196 17.630116 6740.1118 2.5375771e+08 0.051926818 0.064241346 118.19953 17.511168 6742.5369 2.4247452e+08 0.048878935 0.069918902 118.24982 17.389509 6744.9619 2.3371267e+08 0.044767482 0.078537430 118.30216 17.265804 6747.3870 2.2141754e+08 0.040240384 0.067227940 118.35227 17.142098 6749.8120 2.1263950e+08 0.038230989 0.072055597 118.39985 17.018392 6752.2371 2.0423433e+08 0.034953740 0.073860112 118.44549 16.899722 6754.6622 1.9601774e+08 0.033381391 0.075148642 118.48778 16.789762 6757.0872 1.9483411e+08 0.030384909 0.076475381 118.53008 16.679786 6759.5123 1.8782239e+08 0.031448709 0.075943575 118.57766 16.560838 6761.9373 1.8256720e+08 0.034892580 0.078045667 118.62524 16.441891 6764.3624 1.7571411e+08 0.038336704 0.079500647 118.67283 16.318644 6766.7875 1.6786249e+08 0.039038617 0.081494985 118.72042 16.194919 6769.2125 1.6341768e+08 0.033959417 0.084969703 118.76800 16.071209 6771.6376 1.5724856e+08 0.029646860 0.090851539 118.81558 15.947503 6774.0626 1.5119753e+08 0.025368664 0.096733376 118.86316 15.827113 6776.4877 1.4554646e+08 0.021093826 0.10261521 118.91073 15.708165 6778.9128 1.4098592e+08 0.016813908 0.10849705 118.95831 15.586385 6781.3378 1.3668678e+08 0.012536549 0.11437888 119.00589 15.462679 6783.7629 1.3380000e+08 0.0082480280 0.12026072 119.05347 15.341319 6786.1879 1.2924393e+08 0.0039890581 0.12614256 119.10105 15.222372 6788.6130 1.2403156e+08 -0.00025011483 0.13202439 119.14863 15.101561 6791.0381 1.1704447e+08 -0.0044458842 0.13790623 119.19621 14.977855 6793.4631 1.1180156e+08 -0.0086551709 0.14378807 119.24576 14.849027 6795.8882 1.0797578e+08 -0.012878908 0.14966990 119.30014 14.707646 6798.3132 1.0521497e+08 -0.017114285 0.15555174 119.35145 14.576378 6800.7383 1.0256534e+08 -0.021344641 0.16143358 119.39903 14.457430 6803.1634 98977042. -0.025549585 0.16731541 119.44495 14.338482 6805.5884 98645447. -0.029825018 0.17319725 119.48777 14.219533 6808.0135 97650284. -0.034083148 0.17907909 119.53176 14.099408 6810.4385 92392896. -0.038234077 0.18496092 119.57935 13.975702 6812.8636 87212684. -0.042371665 0.19084276 119.62792 13.850215 6815.2887 80540305. -0.046443040 0.19672459 119.68229 13.714271 6817.7137 80244702. -0.050692953 0.20260643 119.73313 13.582073 6820.1388 78662054. -0.054880858 0.20848827 119.77595 13.458349 6822.5638 74097692. -0.058940774 0.21437010 119.81976 13.335604 6824.9889 74235695. -0.063146096 0.22025194 119.86734 13.216656 6827.4140 71551002. -0.067231081 0.22613378 119.91506 13.095952 6829.8390 69831693. -0.071337200 0.23201561 119.96400 12.960008 6832.2641 66862714. -0.075371727 0.23789745 120.01437 12.824064 6834.6891 60981642. -0.079202391 0.24377929 120.06875 12.688120 6837.1142 57118869. -0.083044389 0.24966112 120.11821 12.557382 6839.5393 54636109. -0.086874690 0.25554296 120.16104 12.433677 6841.9643 50918669. -0.090412151 0.26142479 120.20760 12.306011 6844.3894 51110535. -0.093970124 0.26730663 120.26197 12.170068 6846.8144 52065651. -0.097367534 0.27318847 120.31075 12.042360 6849.2395 49148905. -0.093889721 0.27907030 120.35357 11.923412 6851.6646 48677708. -0.10507689 0.28495214 120.39873 11.797957 6854.0896 46444977. -0.12373021 0.29083398 120.44768 11.662013