# # 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 = 46.821198 km # Date (UTC) = 2015-12-15T08:03:42.929 # Date (julian) = 2457371.83591353 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6539.6920 1.6357773e+10 0.17793867 0.050481319 -2.1392310 49.749171 6541.3838 1.5488408e+10 0.17589974 0.051202074 -2.2159495 49.678354 6543.0755 1.4603926e+10 0.17445585 0.051401712 -2.2926677 49.607538 6544.7673 1.3746594e+10 0.17321375 0.052266756 -2.3693758 49.536730 6546.4590 1.2949491e+10 0.17122402 0.052842199 -2.4460839 49.465922 6548.1507 1.2222822e+10 0.17004293 0.053712658 -2.5227920 49.395114 6549.8425 1.1514176e+10 0.16897402 0.054824819 -2.5995002 49.324307 6551.5342 1.0871842e+10 0.16731389 0.055423265 -2.6762085 49.253500 6553.2259 1.0271207e+10 0.16590308 0.055221489 -2.7529168 49.182693 6554.9177 9.6998300e+09 0.16450101 0.054851637 -2.8288702 49.111885 6556.6094 9.1600356e+09 0.16239061 0.053923530 -2.9026280 49.041077 6558.3012 8.6410293e+09 0.16047429 0.052982682 -2.9763858 48.970270 6559.9929 8.1559875e+09 0.15855354 0.052275111 -3.0501436 48.899462 6561.6846 7.7033593e+09 0.15586162 0.051035309 -3.1239101 48.828646 6563.3764 7.2865896e+09 0.15336116 0.049492992 -3.1976779 48.757830 6565.0681 6.8944528e+09 0.15133964 0.048241058 -3.2714457 48.687013 6566.7598 6.5229373e+09 0.14898358 0.046753041 -3.3452087 48.616201 6568.4516 6.1767816e+09 0.14680259 0.045356547 -3.4189665 48.545393 6570.1433 5.8517711e+09 0.14514815 0.044858139 -3.4927243 48.474585 6571.8351 5.5565254e+09 0.14320044 0.044275203 -3.5664821 48.403777 6573.5268 5.2908572e+09 0.14111865 0.043234737 -3.6402401 48.332969 6575.2185 5.0250612e+09 0.13962518 0.042155444 -3.7139981 48.262161 6576.9103 4.7674024e+09 0.13784032 0.040323645 -3.7877560 48.191352 6578.6020 4.5215991e+09 0.13572701 0.037698962 -3.8545074 48.127345 6580.2938 4.3134311e+09 0.13405590 0.036249282 -3.9182334 48.066275 6581.9855 4.1507146e+09 0.13224334 0.035298188 -3.9819593 48.005204 6583.6772 4.0098363e+09 0.13032119 0.034678883 -4.0456853 47.944134 6585.3690 3.8709622e+09 0.12865058 0.033675791 -4.1160222 47.873977 6587.0607 3.7177800e+09 0.12699350 0.033171820 -4.1868392 47.803161 6588.7524 3.5586136e+09 0.12526991 0.033128649 -4.2576562 47.732344 6590.4442 3.4061038e+09 0.12330924 0.030235816 -4.3268652 47.661532 6592.1359 3.2532614e+09 0.12122185 0.027941505 -4.3947224 47.590724 6593.8277 3.1167343e+09 0.11903025 0.026332748 -4.4625796 47.519916 6595.5194 2.9901210e+09 0.11662866 0.025677434 -4.5304368 47.449109 6597.2111 2.8653226e+09 0.11444611 0.025656100 -4.5982941 47.378302 6598.9029 2.7481877e+09 0.11245262 0.024976101 -4.6661515 47.307495 6600.5946 2.6321049e+09 0.11203973 0.026212290 -4.7340088 47.236688 6602.2864 2.5256533e+09 0.11095032 0.027272272 -4.8041282 47.165873 6603.9781 2.4291099e+09 0.10906854 0.026084247 -4.8749451 47.095055 6605.6698 2.3344589e+09 0.10829854 0.027226976 -4.9457619 47.024238 6607.3616 2.2390473e+09 0.10639707 0.024993037 -5.0174062 46.948856 6609.0533 2.1332368e+09 0.10362484 0.023721765 -5.0904277 46.865877 6610.7450 2.0245413e+09 0.10134895 0.024714850 -5.1634492 46.782898 6612.4368 1.9142034e+09 0.10041092 0.023994405 -5.2345987 46.704332 6614.1285 1.8163743e+09 0.099768139 0.023851947 -5.3024561 46.633525 6615.8203 1.7369809e+09 0.098673601 0.023276769 -5.3703134 46.562718 6617.5120 1.6569135e+09 0.098212883 0.023609000 -5.4381702 46.491910 6619.2037 1.5910605e+09 0.097667281 0.024575072 -5.5031573 46.421102 6620.8955 1.5346969e+09 0.097042260 0.025055763 -5.5680642 46.350294 6622.5872 1.4810898e+09 0.095940699 0.024601697 -5.6329712 46.279486 6624.2789 1.4329603e+09 0.094437262 0.025011630 -5.6978782 46.208678 6625.9707 1.3775879e+09 0.093562445 0.026555926 -5.7627851 46.137870 6627.6624 1.3213156e+09 0.092019681 0.025572695 -5.8276920 46.067062 6629.3542 1.2751534e+09 0.090953393 0.026045071 -5.8926006 45.996252 6631.0459 1.2326652e+09 0.089415925 0.025935429 -5.9575160 45.925436 6632.7376 1.1872363e+09 0.088318476 0.026120794 -6.0224315 45.854620 6634.4294 1.1440478e+09 0.086986260 0.026358164 -6.0873469 45.783804 6636.1211 1.1000515e+09 0.085627295 0.026502718 -6.1498802 45.712994 6637.8129 1.0563270e+09 0.084740671 0.025763300 -6.2118367 45.642186 6639.5046 1.0203986e+09 0.084088926 0.025447722 -6.2737933 45.571378 6641.1963 9.8237633e+08 0.084311584 0.025148967 -6.3369762 45.500570 6642.8881 9.4107404e+08 0.083827130 0.025188038 -6.4018835 45.429763 6644.5798 9.0658172e+08 0.082760192 0.025406271 -6.4667908 45.358956 6646.2715 8.7528646e+08 0.081729503 0.026060709 -6.5316209 45.288149 6647.9633 8.4500197e+08 0.080973928 0.026944954 -6.5935773 45.217341 6649.6550 8.2306557e+08 0.080247045 0.026730770 -6.6555337 45.146533 6651.3468 7.9137441e+08 0.079983280 0.026749908 -6.7174901 45.075725 6653.0385 7.6219071e+08 0.079831666 0.027545318 -6.7775732 45.004912 6654.7302 7.3607331e+08 0.078961470 0.027725137 -6.8365874 44.934095 6656.4220 7.1236626e+08 0.077469246 0.028393784 -6.8956016 44.863279 6658.1137 6.9355613e+08 0.076400871 0.030262755 -6.9572628 44.790272 6659.8055 6.6697309e+08 0.075310739 0.031666580 -7.0269651 44.710612 6661.4972 6.3938965e+08 0.074181708 0.032788180 -7.0966674 44.630952 6663.1889 6.0511571e+08 0.073388681 0.032430856 -7.1638577 44.553371 6664.8807 5.7745505e+08 0.072989372 0.028983760 -7.2228642 44.482563 6666.5724 5.5758087e+08 0.072736569 0.027020136 -7.2818707 44.411756 6668.2641 5.3790318e+08 0.071992678 0.027704524 -7.3408772 44.340949 6669.9559 5.1780465e+08 0.071627139 0.027373944 -7.3998836 44.267647 6671.6476 4.9752687e+08 0.071411609 0.026874578 -7.4588899 44.193890 6673.3394 4.7803474e+08 0.070956148 0.027966755 -7.5178962 44.120132 6675.0311 4.6355612e+08 0.069600633 0.029857921 -7.5769060 44.047715 6676.7228 4.5065705e+08 0.067675082 0.032179588 -7.6359201 43.976897 6678.4146 4.3478117e+08 0.067061441 0.030659329 -7.6949341 43.906080 6680.1063 4.2155513e+08 0.067356616 0.029464374 -7.7544411 43.834671 6681.7981 4.0388812e+08 0.067856227 0.030269611 -7.8208242 43.755010 6683.4898 3.8602025e+08 0.068136608 0.031906373 -7.8872072 43.675350 6685.1815 3.7157484e+08 0.067961724 0.032896576 -7.9530317 43.596169 6686.8733 3.5461512e+08 0.066677947 0.034269164 -8.0090881 43.525362 6688.5650 3.4208721e+08 0.064604759 0.033915613 -8.0651445 43.454554 6690.2567 3.2983032e+08 0.063577112 0.033086441 -8.1212009 43.383747 6691.9485 3.1794173e+08 0.062773774 0.032777484 -8.1792178 43.312939 6693.6402 3.1290831e+08 0.062068734 0.031384454 -8.2382239 43.242131 6695.3320 3.0276874e+08 0.061906197 0.029798497 -8.2972301 43.171323 6697.0237 2.8959280e+08 0.061477826 0.030094264 -8.3573528 43.098080 6698.7154 2.7649602e+08 0.060540909 0.031199832 -8.4204166 43.018421 6700.4072 2.6547061e+08 0.059235325 0.030969729 -8.4834804 42.938762 6702.0989 2.5527669e+08 0.058049692 0.032955710 -8.5447058 42.861425 6703.7906 2.4932027e+08 0.058339862 0.035653690 -8.6007619 42.790617 6705.4824 2.4064665e+08 0.058414539 0.037526193 -8.6568180 42.719809 6707.1741 2.3094991e+08 0.058079680 0.040161883 -8.7128740 42.649001 6708.8659 2.2548315e+08 0.057581374 0.040986473 -8.7721578 42.570456 6710.5576 2.1453397e+08 0.056348869 0.040605638 -8.8319117 42.490785 6712.2493 2.0542304e+08 0.054657709 0.042292900 -8.8916656 42.411113 6713.9411 1.9566271e+08 0.052900331 0.047090302 -8.9482374 42.336531 6715.6328 1.9137241e+08 0.051585489 0.048025815 -9.0042935 42.262773 6717.3246 1.8862100e+08 0.049914831 0.049854193 -9.0603496 42.189015 6719.0163 1.8519584e+08 0.047973622 0.051354359 -9.1181433 42.112477 6720.7080 1.7853417e+08 0.048414406 0.050337728 -9.1778882 42.032817 6722.3998 1.7005196e+08 0.048038610 0.050110984 -9.2376331 41.953157 6724.0915 1.6696817e+08 0.046227695 0.049162509 -9.2943355 41.877553 6725.7832 1.6088123e+08 0.043016355 0.041086763 -9.3474410 41.806745 6727.4750 1.5717435e+08 0.042246968 0.040327570 -9.4005464 41.735937 6729.1667 1.5028865e+08 0.041919973 0.040934302 -9.4541084 41.664520 6730.8585 1.4645276e+08 0.040595979 0.041555958 -9.5138537 41.584861 6732.5502 1.4016824e+08 0.039630942 0.043841499 -9.5735989 41.505201 6734.2419 1.3291453e+08 0.039106051 0.049339043 -9.6329730 41.426036 6735.9337 1.3120493e+08 0.040675278 0.050284598 -9.6860857 41.355219 6737.6254 1.2439761e+08 0.041840132 0.056127838 -9.7391985 41.284402 6739.3172 1.2512627e+08 0.042282548 0.063214686 -9.7923113 41.213584 6741.0089 1.1964459e+08 0.041435468 0.065784048 -9.8498471 41.136870 6742.7006 1.0952824e+08 0.038823351 0.070317967 -9.9095917 41.057211 6744.3924 1.0381978e+08 0.035590580 0.078096898 -9.9693363 40.977552 6746.0841 97827769. 0.034708588 0.078009453 -10.026910 40.897892 6747.7758 98155567. 0.031165178 0.067094068 -10.083336 40.818232 6749.4676 96983556. 0.030164144 0.072149909 -10.139761 40.738571 6751.1593 90987919. 0.028287950 0.073779033 -10.192166 40.664589 6752.8511 89579869. 0.026206999 0.073149642 -10.242321 40.593782 6754.5428 89766168. 0.025153292 0.075340585 -10.292476 40.522975 6756.2345 90308897. 0.023261373 0.074770404 -10.344211 40.449103 6757.9263 89144275. 0.023079193 0.073929062 -10.400637 40.366123 6759.6180 80557627. 0.023692628 0.075969091 -10.457063 40.283144 6761.3098 76879776. 0.025004360 0.077993816 -10.513489 40.200958 6763.0015 70927338. 0.029066535 0.076442298 -10.569914 40.121298 6764.6932 66207135. 0.030966103 0.079516496 -10.626340 40.041638 6766.3850 67226437. 0.031557602 0.080584546 -10.682766 39.961978 6768.0767 67553448. 0.028613774 0.081132023 -10.739191 39.882319 6769.7684 69151013. 0.024446471 0.086318070 -10.795617 39.802659 6771.4602 64692103. 0.020182130 0.090421279 -10.850706 39.724887 6773.1519 55796579. 0.013637153 0.094524488 -10.900868 39.654070 6774.8437 50366827. -0.0079864930 0.098627698 -10.951030 39.583253 6776.5354 49572524. 0.0025651926 0.10273091 -11.001192 39.512435 6778.2271 54205591. 0.029138479 0.10683412 -11.053782 39.434327