# # 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 = 34.271556 km # Date (UTC) = 2012-01-13T09:25:17.842 # Date (julian) = 2455939.89256762 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6495.4492 2.1824312e+11 0.026968422 0.030910941 -24.346324 47.308890 6496.7943 1.9771642e+11 0.031687363 0.031316527 -24.412675 47.230475 6498.1393 1.7850404e+11 0.036518225 0.031722114 -24.474847 47.157353 6499.4843 1.6248291e+11 0.041586679 0.032127701 -24.535541 47.086103 6500.8293 1.4899022e+11 0.046939687 0.032533287 -24.596236 47.014852 6502.1743 1.3687085e+11 0.052538013 0.032938874 -24.656930 46.943602 6503.5194 1.2482447e+11 0.058332141 0.033344461 -24.725859 46.865550 6504.8644 1.1315988e+11 0.064343859 0.033750047 -24.795226 46.787135 6506.2094 1.0230212e+11 0.070598297 0.034155634 -24.864592 46.708721 6507.5544 9.2864786e+10 0.077175172 0.034561221 -24.926791 46.634847 6508.8994 8.5201767e+10 0.084173051 0.034966807 -24.984847 46.563596 6510.2444 7.9049484e+10 0.091632679 0.035372394 -25.042904 46.492346 6511.5895 7.3947010e+10 0.099503942 0.035777980 -25.100960 46.421096 6512.9345 6.8899805e+10 0.10758444 0.036183567 -25.166019 46.343797 6514.2795 6.3527581e+10 0.11573923 0.036589154 -25.232369 46.265383 6515.6245 5.8256060e+10 0.12400486 0.036994740 -25.298720 46.186969 6516.9695 5.3686550e+10 0.13249519 0.037400327 -25.359291 46.113736 6518.3146 4.9947325e+10 0.14115116 0.037805914 -25.414709 46.045124 6519.6596 4.7141278e+10 0.14955972 0.038211500 -25.470126 45.976511 6521.0046 4.4567583e+10 0.15734830 0.038617087 -25.525543 45.907899 6522.3496 4.1946996e+10 0.16350581 0.039008799 -25.586812 45.829813 6523.6946 3.9079469e+10 0.16625258 0.039351273 -25.650147 45.748382 6525.0396 3.6065393e+10 0.16990974 0.039777691 -25.713482 45.666951 6526.3847 3.3329534e+10 0.17094032 0.040071358 -25.774581 45.590949 6527.7297 3.1070649e+10 0.17350053 0.041246226 -25.832637 45.522337 6529.0747 2.9335765e+10 0.17458769 0.042354769 -25.890693 45.453726 6530.4197 2.7926460e+10 0.17645515 0.044416289 -25.948748 45.385115 6531.7647 2.6579102e+10 0.17780224 0.046341756 -26.008239 45.310289 6533.1098 2.4989027e+10 0.17843265 0.047566228 -26.068558 45.231873 6534.4548 2.3260620e+10 0.17833440 0.048071774 -26.128877 45.153458 6535.7998 2.1647955e+10 0.17705187 0.047877353 -26.187636 45.077323 6537.1448 2.0361845e+10 0.17768344 0.048753495 -26.243053 45.006074 6538.4898 1.9425398e+10 0.17692047 0.049395199 -26.298470 44.934825 6539.8348 1.8619498e+10 0.17692841 0.050654181 -26.353886 44.863575 6541.1799 1.7724991e+10 0.17516076 0.051268202 -26.411895 44.788537 6542.5249 1.6759996e+10 0.17422792 0.051201510 -26.472215 44.710121 6543.8699 1.5735076e+10 0.17271882 0.051610201 -26.532534 44.631705 6545.2149 1.4799720e+10 0.17208475 0.052457492 -26.591247 44.554817 6546.5599 1.4013211e+10 0.17048290 0.052925259 -26.644025 44.483566 6547.9049 1.3354561e+10 0.16945154 0.053631500 -26.696803 44.412316 6549.2500 1.2850195e+10 0.16788566 0.054221017 -26.749581 44.341066 6550.5950 1.2366283e+10 0.16675354 0.055134339 -26.802359 44.270933 6551.9400 1.1914507e+10 0.16583498 0.055565707 -26.855137 44.202322 6553.2850 1.1492035e+10 0.16427498 0.055191790 -26.907915 44.133711 6554.6300 1.1100974e+10 0.16297464 0.054845601 -26.960693 44.065100 6555.9751 1.0710080e+10 0.16100859 0.054034083 -27.018253 43.988359 6557.3201 1.0218940e+10 0.16008499 0.053665482 -27.078572 43.906928 6558.6651 9.6695714e+09 0.15824199 0.052672562 -27.138891 43.825497 6560.0101 9.1234010e+09 0.15703302 0.052265191 -27.195968 43.748149 6561.3551 8.6715717e+09 0.15481320 0.051197680 -27.246108 43.679537 6562.7001 8.3234353e+09 0.15329360 0.050213687 -27.296247 43.610925 6564.0452 8.0154505e+09 0.15111166 0.048751128 -27.346387 43.542313 6565.3902 7.6999115e+09 0.14985330 0.047875337 -27.401911 43.466920 6566.7352 7.3419512e+09 0.14841122 0.046766982 -27.462230 43.385490 6568.0802 6.9616259e+09 0.14722006 0.045697920 -27.522548 43.304061 6569.4252 6.5977110e+09 0.14595488 0.044880101 -27.580695 43.225365 6570.7703 6.2891307e+09 0.14476819 0.044598443 -27.630835 43.156754 6572.1153 6.0277872e+09 0.14360127 0.044164140 -27.680974 43.088142 6573.4603 5.7859148e+09 0.14180524 0.043288107 -27.731113 43.019530 6574.8053 5.5611080e+09 0.14030559 0.042468216 -27.780137 42.950914 6576.1503 5.3450144e+09 0.13826211 0.041198361 -27.827644 42.882292 6577.4953 5.1568951e+09 0.13649106 0.039442301 -27.875152 42.813671 6578.8404 4.9897229e+09 0.13409614 0.037322579 -27.922659 42.745050 6580.1854 4.8030268e+09 0.13256515 0.036349432 -27.976380 42.668303 6581.5304 4.5995457e+09 0.13084595 0.035435996 -28.033673 42.586887 6582.8754 4.3748535e+09 0.12976092 0.035055568 -28.090966 42.505470 6584.2204 4.1570386e+09 0.12838715 0.034395430 -28.145140 42.428131 6585.5655 3.9630106e+09 0.12724144 0.033518704 -28.192647 42.359508 6586.9105 3.7982722e+09 0.12612306 0.033159527 -28.240155 42.290886 6588.2555 3.6547191e+09 0.12499218 0.033294608 -28.287662 42.222264 6589.6005 3.5289669e+09 0.12352157 0.031854619 -28.336564 42.152249 6590.9455 3.4098471e+09 0.12163475 0.029303235 -28.386703 42.080998 6592.2905 3.2918999e+09 0.12020660 0.027791317 -28.436843 42.009748 6593.6356 3.1840975e+09 0.11850008 0.026511338 -28.486982 41.938498 6594.9806 3.0689204e+09 0.11689000 0.025634230 -28.540192 41.861944 6596.3256 2.9528532e+09 0.11478719 0.025725793 -28.594479 41.783529 6597.6706 2.8171386e+09 0.11353306 0.025511105 -28.648766 41.705115 6599.0156 2.6871256e+09 0.11212829 0.024930671 -28.699051 41.629743 6600.3607 2.5715237e+09 0.11214653 0.025731315 -28.743912 41.558493 6601.7057 2.4702884e+09 0.11154187 0.027378022 -28.788774 41.487242 6603.0507 2.3838216e+09 0.11048625 0.026633264 -28.833635 41.415991 6604.3957 2.2990064e+09 0.10940510 0.026306236 -28.880173 41.346418 6605.7407 2.2251223e+09 0.10883593 0.027286455 -28.927673 41.277807 6607.0857 2.1579136e+09 0.10742974 0.025537680 -28.975173 41.209196 6608.4308 2.0966821e+09 0.10513805 0.023720982 -29.022673 41.140585 6609.7758 2.0265365e+09 0.10304344 0.023936375 -29.073363 41.063682 6611.1208 1.9453593e+09 0.10095168 0.024881421 -29.124634 40.985266 6612.4658 1.8565487e+09 0.10032655 0.023972710 -29.175906 40.906851 6613.8108 1.7740352e+09 0.099753158 0.023871088 -29.225178 40.832233 6615.1559 1.7044782e+09 0.099033984 0.023256327 -29.272678 40.760983 6616.5009 1.6379323e+09 0.098051276 0.023360911 -29.320177 40.689732 6617.8459 1.5772946e+09 0.097735972 0.023719702 -29.367677 40.618482 6619.1909 1.5179113e+09 0.097163690 0.024571977 -29.413223 40.549186 6620.5359 1.4685707e+09 0.096672671 0.024939899 -29.458084 40.480575 6621.8809 1.4325105e+09 0.095719094 0.024797454 -29.502946 40.411964 6623.2260 1.3901882e+09 0.094517167 0.024575542 -29.547807 40.343353 6624.5710 1.3452100e+09 0.093423586 0.025167953 -29.598765 40.262549 6625.9160 1.2870574e+09 0.092628089 0.026490666 -29.650036 40.181118 6627.2610 1.2222434e+09 0.091183296 0.025417637 -29.701307 40.099687 6628.6060 1.1624109e+09 0.090548066 0.025949151 -29.746829 40.026402 6629.9511 1.1087320e+09 0.089707015 0.025937151 -29.789051 39.957792 6631.2961 1.0663941e+09 0.088353479 0.025960841 -29.831273 39.889181 6632.6411 1.0324345e+09 0.087401703 0.026109217 -29.873496 39.820570 6633.9861 1.0030370e+09 0.086143774 0.026324417 -29.917950 39.751958 6635.3311 9.7451985e+08 0.085150623 0.026449445 -29.962812 39.683346 6636.6761 9.4946154e+08 0.083920561 0.026287178 -30.007673 39.614734 6638.0212 9.1983799e+08 0.083182592 0.025670720 -30.052726 39.545398 6639.3662 8.8395673e+08 0.082651452 0.025497194 -30.100981 39.463967 6640.7112 8.4727485e+08 0.083126861 0.025183636 -30.149237 39.382535 6642.0562 8.1122183e+08 0.083190127 0.025153997 -30.197492 39.301104 6643.4012 7.7860133e+08 0.082703494 0.025253200 -30.241279 39.229170 6644.7463 7.4673610e+08 0.082196249 0.025424260 -30.283502 39.160559 6646.0913 7.2103507e+08 0.081455436 0.025967392 -30.325724 39.091949 6647.4363 6.9941736e+08 0.080832517 0.026667488 -30.367947 39.023338 6648.7813 6.8428901e+08 0.079930277 0.027487294 -30.415909 38.942530 6650.1263 6.5880476e+08 0.079789106 0.026284156 -30.464164 38.861100 6651.4713 6.2879852e+08 0.079426283 0.026845382 -30.512419 38.779669 6652.8164 6.0097263e+08 0.079259060 0.027475135 -30.556843 38.706381 6654.1614 5.7331458e+08 0.078651118 0.027967477 -30.599072 38.637760 6655.5064 5.5651131e+08 0.077545062 0.027819460 -30.641301 38.569138 6656.8514 5.3767616e+08 0.076324187 0.028770700 -30.683529 38.500517 6658.1964 5.2221137e+08 0.075432962 0.030409458 -30.725753 38.431904 6659.5415 5.1096441e+08 0.074351922 0.031721651 -30.767975 38.363292 6660.8865 4.9892173e+08 0.073357873 0.032431756 -30.810197 38.294680 6662.2315 4.8576645e+08 0.072451699 0.032914393 -30.852765 38.225334 6663.5765 4.7156317e+08 0.071546778 0.032323449 -30.901021 38.143902 6664.9215 4.5210185e+08 0.071412444 0.028834271 -30.949276 38.062471 6666.2665 4.3532017e+08 0.071206963 0.026960534 -30.997532 37.981040 6667.6116 4.1655988e+08 0.070779993 0.027328094 -31.039356 37.909116 6668.9566 3.9836153e+08 0.069898843 0.028317278 -31.078939 37.840505 6670.3016 3.8855081e+08 0.070119649 0.027188908 -31.118523 37.771894 6671.6466 3.7845131e+08 0.070014787 0.026874563 -31.158106 37.703284 6672.9916 3.7526056e+08 0.069802540 0.027454367 -31.203074 37.625337 6674.3367 3.5788089e+08 0.069085865 0.029238778 -31.248314 37.546922 6675.6817 3.3909292e+08 0.067811810 0.031104003 -31.293553 37.468507 6677.0267 3.2559681e+08 0.066696406 0.032320280 -31.335192 37.394652 6678.3717 3.1235942e+08 0.066489497 0.030688002 -31.374776 37.323401 6679.7167 3.0934405e+08 0.066572304 0.029675504 -31.414359 37.252151 6681.0617 2.9932513e+08 0.067119853 0.029704725 -31.453942 37.180900 6682.4068 2.8796114e+08 0.067454816 0.030735322 -31.493526 37.111886 6683.7518 2.7774859e+08 0.067431061 0.032290319 -31.533110 37.043275 6685.0968 2.6776608e+08 0.067128314 0.032807077 -31.572694 36.974664 6686.4418 2.6262063e+08 0.065930931 0.034018138 -31.612603 36.905489 6687.7868 2.5514948e+08 0.064084417 0.033904077 -31.657842 36.827074 6689.1318 2.4488952e+08 0.061879021 0.033897339 -31.703082 36.748660 6690.4769 2.3183406e+08 0.060984941 0.033061214 -31.748321 36.670245 6691.8219 2.1627645e+08 0.059840059 0.032807352 -31.789365 36.599102 6693.1669 2.0791828e+08 0.058828988 0.031546830 -31.828948 36.530491 6694.5119 1.9679819e+08 0.057715706 0.030543541 -31.868532 36.461879 6695.8569 1.9114742e+08 0.056980354 0.029702064 -31.908115 36.393267 6697.2020 1.8115616e+08 0.055826759 0.030116823 -31.953085 36.312446 6698.5470 1.7108279e+08 0.054320980 0.030968605 -31.998325 36.231016 6699.8920 1.6205119e+08 0.052608909 0.030767377 -32.043565 36.149585 6701.2370 1.4874468e+08 0.050456312 0.031757211 -32.083523 36.076316 6702.5820 1.4051013e+08 0.049357484 0.033341484 -32.120467 36.007705 6703.9270 1.3036743e+08 0.048428600 0.035995006 -32.157412 35.939094 6705.2721 1.2474368e+08 0.047489916 0.037152286 -32.194356 35.870484 6706.6171 1.1963747e+08 0.045820708 0.039520392 -32.235773 35.793566 6707.9621 1.1396405e+08 0.043377952 0.040049006 -32.277996 35.715151 6709.3071 1.0459387e+08 0.036623348 0.040937199 -32.320219 35.636736 6710.6521 93615363. -0.00090426859 0.040624143 -32.359636 35.563531 6711.9972 79121632. 0.022906809 0.041826724 -32.396581 35.494920 6713.3422 74083324. 0.098138741 0.044924199 -32.433526 35.426309