# # 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 = 51.140863 km # Date (UTC) = 2015-01-29T10:43:04.249 # Date (julian) = 2457051.94657695 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6482.8029 7.8625099e+10 0.022265544 0.027097476 88.061689 52.885877 6484.7601 6.9191211e+10 0.027616469 0.027687644 88.237971 52.692676 6486.7172 6.2116452e+10 0.032340298 0.028277811 88.391543 52.520676 6488.6743 5.7120679e+10 0.036382717 0.028867979 88.545146 52.348641 6490.6314 5.4769707e+10 0.039531164 0.029458147 88.697204 52.176600 6492.5886 5.1302411e+10 0.042901778 0.030048315 88.844666 52.004558 6494.5457 4.7461643e+10 0.046268926 0.030638482 89.015133 51.805678 6496.5028 4.3727411e+10 0.049469645 0.031228650 89.187545 51.604530 6498.4600 4.0191143e+10 0.052370154 0.031818818 89.335007 51.432490 6500.4171 3.7481697e+10 0.054702669 0.032408986 89.478202 51.260448 6502.3742 3.5369343e+10 0.056530137 0.032999154 89.619521 51.087995 6504.3314 3.3385000e+10 0.058169889 0.033589321 89.760804 50.909853 6506.2885 3.1516426e+10 0.060378012 0.034179489 89.899404 50.734392 6508.2456 2.9680456e+10 0.064254211 0.034769657 90.034579 50.562350 6510.2028 2.7936925e+10 0.070882383 0.035359825 90.174745 50.390309 6512.1599 2.6320224e+10 0.081160668 0.035949993 90.314927 50.218277 6514.1170 2.4620340e+10 0.095218914 0.036540160 90.450070 50.046278 6516.0742 2.2912201e+10 0.11321370 0.037130328 90.581811 49.874254 6518.0313 2.1274807e+10 0.13179049 0.037720496 90.710842 49.702211 6519.9884 2.0038901e+10 0.14841381 0.038310664 90.824647 49.556814 6521.9455 1.9008605e+10 0.16146868 0.038900831 90.937289 49.413453 6523.9027 1.8030740e+10 0.16594102 0.039402840 91.065925 49.236106 6525.8598 1.6890324e+10 0.16927582 0.039684086 91.194944 49.060076 6527.8169 1.5567232e+10 0.17312647 0.041309582 91.323944 48.888076 6529.7741 1.4278377e+10 0.17558089 0.043468817 91.448537 48.716047 6531.7312 1.3125600e+10 0.17695143 0.046292958 91.569994 48.546197 6533.6883 1.2283912e+10 0.17749019 0.047812110 91.677514 48.397715 6535.6455 1.1574388e+10 0.17682245 0.047944295 91.787185 48.245938 6537.6026 1.0925216e+10 0.17705872 0.048969325 91.910074 48.073898 6539.5597 1.0149523e+10 0.17643149 0.050321169 92.029800 47.901877 6541.5169 9.3720503e+09 0.17475013 0.051158914 92.146516 47.729875 6543.4740 8.7774234e+09 0.17323954 0.051506295 92.250570 47.578675 6545.4311 8.2740991e+09 0.17194298 0.052459429 92.352970 47.430193 6547.3883 7.8186698e+09 0.17072057 0.053435012 92.468728 47.259771 6549.3454 7.2984966e+09 0.16906558 0.054318259 92.585470 47.087731 6551.3025 6.7400261e+09 0.16765469 0.055341940 92.702209 46.915691 6553.2597 6.2908203e+09 0.16624130 0.055204544 92.805777 46.759602 6555.2168 5.9420960e+09 0.16435998 0.054671215 92.903040 46.611149 6557.1739 5.6209645e+09 0.16202129 0.053757097 93.009942 46.445647 6559.1310 5.3166630e+09 0.15883913 0.052372390 93.119271 46.276340 6561.0882 5.0162774e+09 0.15567324 0.051329229 93.216553 46.132977 6563.0453 4.7234723e+09 0.15321768 0.049875955 93.315729 45.984663 6565.0024 4.4608161e+09 0.15105996 0.048315627 93.426327 45.806479 6566.9596 4.2037741e+09 0.14918489 0.046640058 93.527427 45.646231 6568.9167 3.9709408e+09 0.14740217 0.044928994 93.619570 45.502896 6570.8738 3.8055468e+09 0.14617201 0.044555537 93.708849 45.356674 6572.8310 3.6629887e+09 0.14469506 0.043754283 93.795889 45.208194 6574.7881 3.5061740e+09 0.14285868 0.042476484 93.897254 45.045386 6576.7452 3.3417749e+09 0.14082866 0.040513620 94.007853 44.873342 6578.7024 3.1728551e+09 0.13850890 0.037540507 94.095351 44.729424 6580.6595 3.0223405e+09 0.13654414 0.035911288 94.182391 44.585922 6582.6166 2.9175019e+09 0.13473651 0.035125994 94.269431 44.437440 6584.5738 2.8119447e+09 0.13271953 0.034202966 94.357307 44.287209 6586.5309 2.6917145e+09 0.13074593 0.033164433 94.455595 44.115210 6588.4880 2.5735429e+09 0.12907925 0.033216956 94.548862 43.953710 6590.4451 2.4514994e+09 0.12688771 0.030234022 94.635902 43.805227 6592.4023 2.3527053e+09 0.12451098 0.027682790 94.720415 43.659272 6594.3594 2.2618035e+09 0.12197298 0.025975224 94.802334 43.515911 6596.3165 2.1535425e+09 0.11918482 0.025725835 94.896429 43.353736 6598.2737 2.0484064e+09 0.11718669 0.025276504 95.000886 43.175550 6600.2308 1.9434061e+09 0.11634690 0.025464368 95.084772 43.029149 6602.1879 1.8536674e+09 0.11529491 0.027356256 95.166691 42.885788 6604.1451 1.7778725e+09 0.11343607 0.026157413 95.243685 42.742452 6606.1022 1.7018466e+09 0.11277537 0.027320314 95.320503 42.599087 6608.0593 1.6321284e+09 0.11062701 0.023730803 95.402426 42.450606 6610.0165 1.5700092e+09 0.10807162 0.024018708 95.484077 42.302398 6611.9736 1.5121488e+09 0.10604304 0.024337591 95.560875 42.159034 6613.9307 1.4645843e+09 0.10526976 0.023915075 95.638185 42.015159 6615.8879 1.4206031e+09 0.10394859 0.023278848 95.720108 41.866679 6617.8450 1.3755674e+09 0.10340801 0.023719402 95.803535 41.714739 6619.8021 1.3249609e+09 0.10286425 0.024719452 95.895700 41.542697 6621.7593 1.2606890e+09 0.10199003 0.024837790 95.979877 41.385563 6623.7164 1.1970918e+09 0.10051888 0.024757234 96.056660 41.242231 6625.6735 1.1430000e+09 0.099612114 0.026201308 96.133453 41.095984 6627.6306 1.1019042e+09 0.097876176 0.025560419 96.210255 40.947502 6629.5878 1.0626517e+09 0.096727037 0.026002833 96.283919 40.802158 6631.5449 1.0211418e+09 0.095095105 0.025986117 96.355599 40.658797 6633.5020 9.7916322e+08 0.093825348 0.026239904 96.430658 40.515436 6635.4592 9.4120345e+08 0.092435393 0.026468647 96.507459 40.372075 6637.4163 9.0754700e+08 0.091133530 0.025957520 96.580643 40.225095 6639.3734 8.7294696e+08 0.090327998 0.025494601 96.652323 40.076613 6641.3306 8.3489869e+08 0.090686853 0.025149423 96.724004 39.931987 6643.2877 7.9960236e+08 0.089995799 0.025236057 96.795685 39.788623 6645.2448 7.7109541e+08 0.088872577 0.025566377 96.867355 39.641188 6647.2020 7.4109066e+08 0.087627014 0.026544112 96.939021 39.492738 6649.1591 7.2145511e+08 0.086360112 0.027414389 97.010699 39.348595 6651.1162 6.9897274e+08 0.085993427 0.026573232 97.082380 39.205233 6653.0734 6.7513120e+08 0.085744496 0.027563113 97.154063 39.061871 6655.0305 6.4885509e+08 0.084756154 0.027622813 97.225748 38.918510 6656.9876 6.1489190e+08 0.083180868 0.028890242 97.292611 38.775149 6658.9447 5.9284109e+08 0.081836554 0.031736607 97.359171 38.631788 6660.9019 5.6718296e+08 0.080785579 0.032445762 97.425730 38.483370 6662.8590 5.4378053e+08 0.079787634 0.032562316 97.492466 38.335064 6664.8161 5.1858436e+08 0.079173144 0.029219861 97.564147 38.191702 6666.7733 4.9312492e+08 0.078983668 0.027059277 97.635411 38.048342 6668.7304 4.7468296e+08 0.077927366 0.028117130 97.701961 37.905008 6670.6875 4.5542712e+08 0.077898949 0.027010108 97.768512 37.761016 6672.6447 4.3634954e+08 0.077588985 0.027253260 97.835071 37.612535 6674.6018 4.1888591e+08 0.076398533 0.029462448 97.901630 37.464949 6676.5589 3.9827344e+08 0.074333572 0.032073951 97.968190 37.321587 6678.5161 3.8058428e+08 0.073584965 0.030591450 98.034750 37.178224 6680.4732 3.6685261e+08 0.074086503 0.029543598 98.101313 37.034863 6682.4303 3.5124557e+08 0.074633635 0.030753327 98.166500 36.891502 6684.3875 3.4257144e+08 0.074503043 0.032673753 98.227938 36.748141 6686.3446 3.2780505e+08 0.073549891 0.033961570 98.290993 36.603164 6688.3017 3.1502632e+08 0.071085943 0.033854837 98.357557 36.454681 6690.2588 2.9976609e+08 0.069527064 0.033086199 98.422259 36.308064 6692.2160 2.7975277e+08 0.068673100 0.032514523 98.483685 36.164732 6694.1731 2.6633633e+08 0.067896699 0.031018401 98.545118 36.021387 6696.1302 2.5549391e+08 0.067867636 0.029729899 98.606560 35.878024 6698.0874 2.5117128e+08 0.067106029 0.030337750 98.668002 35.734662 6700.0445 2.4761300e+08 0.065638976 0.030700730 98.729444 35.591301 6702.0016 2.3992069e+08 0.064084020 0.032878038 98.790884 35.447940 6703.9588 2.2525529e+08 0.064591791 0.036074381 98.852322 35.304579 6705.9159 2.0989218e+08 0.064809766 0.038296893 98.913763 35.161217 6707.8730 1.9722676e+08 0.064661004 0.040061765 98.975205 35.017854 6709.8302 1.8748905e+08 0.063789718 0.040604519 99.036647 34.871437 6711.7873 1.8177682e+08 0.061928257 0.041587959 99.098090 34.722954 6713.7444 1.7848226e+08 0.059992307 0.046379054 99.159522 34.577784 6715.7016 1.8099647e+08 0.058256240 0.048096122 99.220948 34.434452 6717.6587 1.8669282e+08 0.056164071 0.049833525 99.278852 34.291100 6719.6158 1.8833042e+08 0.054531647 0.050784764 99.335173 34.147739 6721.5730 1.8167477e+08 0.054765897 0.050476532 99.395267 34.004378 6723.5301 1.7166754e+08 0.053333990 0.049664581 99.456709 33.861017 6725.4872 1.5904713e+08 0.049536573 0.041271680 99.507831 33.733707 6727.4443 1.4945787e+08 0.048450664 0.040368390 99.556105 33.610828 6729.4015 1.4446596e+08 0.047777371 0.040777832 99.608442 33.477606 6731.3586 1.3998878e+08 0.046112439 0.042463723 99.664763 33.334245 6733.3157 1.3738224e+08 0.045024835 0.045638554 99.723909 33.190883 6735.2729 1.3419031e+08 0.045495253 0.049583106 99.785347 33.047521 6737.2300 1.2528770e+08 0.047005606 0.054868246 99.843722 32.904158 6739.1871 1.2060782e+08 0.047533450 0.063055569 99.900043 32.760795 6741.1443 1.1426184e+08 0.046414091 0.066170146 99.956356 32.617452 6743.1014 1.1160927e+08 0.043042602 0.071731465 100.01267 32.474120 6745.0585 1.0899660e+08 0.040143469 0.078591492 100.06898 32.330768 6747.0157 1.0651546e+08 0.035543275 0.067355770 100.12530 32.187407 6748.9728 1.0344891e+08 0.035764924 0.072134790 100.17784 32.044045 6750.9299 97228896. 0.033006041 0.073592012 100.22904 31.900683 6752.8871 93305513. 0.030342648 0.073107989 100.28427 31.757321 6754.8442 89794862. 0.028814786 0.074855914 100.34059 31.613959 6756.8013 88014186. 0.026307577 0.076228816 100.39691 31.470596 6758.7584 83595887. 0.027031072 0.075309162 100.45323 31.327233 6760.7156 78226008. 0.027434423 0.077425849 100.50504 31.183872 6762.6727 72690146. 0.032134463 0.076965707 100.55624 31.040511 6764.6298 71019795. 0.034565875 0.079513460 100.61218 30.897175 6766.5870 72183106. 0.035073715 0.081041494 100.66849 30.753842 6768.5441 72795945. 0.031270554 0.082813846 100.71983 30.610481 6770.5012 72352173. 0.027291131 0.088095421 100.77103 30.467222 6772.4584 71578698. 0.023575178 0.092842325 100.82223 30.328981 6774.4155 64960022. 0.019772762 0.097589229 100.87343 30.190397 6776.3726 60884920. 0.015782163 0.10233613 100.92463 30.047035 6778.3298 57730790. 0.010577427 0.10708304 100.97583 29.903673 6780.2869 53439866. -0.0021528327 0.11182994 101.02703 29.760310 6782.2440 51876180. 0.0012794670 0.11657685 101.07988 29.612342 6784.2012 48686439. 0.014099898 0.12132375 101.14130 29.440343