# # 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 = 46.435032 km # Date (UTC) = 2013-12-31T10:15:38.350 # Date (julian) = 2456657.92752720 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.0901 4.9422019e+10 0.049360791 0.032913459 -35.213783 48.216217 6504.0640 4.5737393e+10 0.056995698 0.033508688 -35.310603 48.119397 6506.0379 4.2027249e+10 0.064765284 0.034103918 -35.407423 48.022577 6508.0118 3.8817810e+10 0.072881132 0.034699148 -35.494820 47.932897 6509.9857 3.6291087e+10 0.081533065 0.035294377 -35.577438 47.846836 6511.9596 3.4284850e+10 0.090738829 0.035889607 -35.660057 47.760776 6513.9336 3.2466759e+10 0.10037819 0.036484836 -35.753449 47.666553 6515.9075 3.0480336e+10 0.11024243 0.037080066 -35.850269 47.569733 6517.8814 2.8481745e+10 0.12039555 0.037675295 -35.944582 47.474812 6519.8553 2.6701507e+10 0.13098015 0.038270525 -36.027199 47.388752 6521.8292 2.5126554e+10 0.14198245 0.038865754 -36.109816 47.302692 6523.8031 2.3808501e+10 0.14820226 0.039378170 -36.191502 47.217563 6525.7771 2.2589302e+10 0.15354767 0.039693531 -36.270690 47.134933 6527.7510 2.1455854e+10 0.15947080 0.041261690 -36.349877 47.052303 6529.7249 2.0340694e+10 0.16411937 0.043390479 -36.434114 46.964466 6531.6988 1.9134834e+10 0.16769037 0.046245809 -36.527060 46.867646 6533.6727 1.7902678e+10 0.17025114 0.047805477 -36.620007 46.770826 6535.6466 1.6773159e+10 0.17139093 0.047943784 -36.702144 46.682451 6537.6206 1.5868344e+10 0.17306112 0.048977795 -36.781320 46.596391 6539.5945 1.5061138e+10 0.17327180 0.050363234 -36.860495 46.510330 6541.5684 1.4257557e+10 0.17172383 0.051142202 -36.948381 46.414802 6543.5423 1.3354851e+10 0.16989693 0.051524227 -37.037455 46.317982 6545.5162 1.2422086e+10 0.16826322 0.052460192 -37.122556 46.224367 6547.4902 1.1598078e+10 0.16698275 0.053473760 -37.198290 46.138306 6549.4641 1.0897520e+10 0.16538949 0.054439204 -37.274023 46.052246 6551.4380 1.0290065e+10 0.16401810 0.055389491 -37.349761 45.966181 6553.4119 9.7189553e+09 0.16267235 0.055128008 -37.425505 45.880109 6555.3858 9.1734311e+09 0.16120665 0.054529182 -37.501249 45.794036 6557.3597 8.6287960e+09 0.15965798 0.053640622 -37.583503 45.702715 6559.3337 8.0473916e+09 0.15754979 0.052349521 -37.672577 45.605896 6561.3076 7.4719874e+09 0.15537936 0.051221115 -37.761650 45.509076 6563.2815 6.9460285e+09 0.15353810 0.049602746 -37.835514 45.422007 6565.2554 6.5129600e+09 0.15185775 0.048028377 -37.907805 45.335946 6567.2293 6.1667948e+09 0.15024653 0.046423286 -37.980122 45.249885 6569.2032 5.8389313e+09 0.14851214 0.044865652 -38.055834 45.163825 6571.1772 5.5674618e+09 0.14707411 0.044454889 -38.131568 45.077765 6573.1511 5.3008921e+09 0.14531086 0.043536245 -38.207841 44.990667 6575.1250 5.0204039e+09 0.14327617 0.042249298 -38.289169 44.893847 6577.0989 4.7222214e+09 0.14083517 0.040065003 -38.370497 44.797027 6579.0728 4.4233167e+09 0.13777499 0.037030460 -38.447178 44.705741 6581.0467 4.1822955e+09 0.13522648 0.035582453 -38.519468 44.619680 6583.0207 3.9845467e+09 0.13339871 0.035011206 -38.591759 44.533620 6584.9946 3.7982649e+09 0.13162685 0.033973724 -38.669565 44.440994 6586.9685 3.5912911e+09 0.13005508 0.033158777 -38.750907 44.344160 6588.9424 3.3770835e+09 0.12860744 0.033065207 -38.831999 44.247623 6590.9163 3.1836343e+09 0.12669432 0.029357540 -38.904289 44.161562 6592.8903 3.0174170e+09 0.12505810 0.027208819 -38.976580 44.075502 6594.8642 2.8784871e+09 0.12299715 0.025698135 -39.048448 43.989441 6596.8381 2.7486555e+09 0.12063861 0.025723463 -39.117297 43.903381 6598.8120 2.6393288e+09 0.11882278 0.025019486 -39.186145 43.817320 6600.7859 2.5323886e+09 0.11865326 0.026605585 -39.256868 43.728916 6602.7598 2.4116558e+09 0.11778854 0.026868217 -39.334323 43.632097 6604.7338 2.2852146e+09 0.11682738 0.026506957 -39.411777 43.535277 6606.7077 2.1623511e+09 0.11587176 0.026232295 -39.483762 43.445296 6608.6816 2.0630763e+09 0.11306246 0.023714350 -39.552611 43.359236 6610.6555 1.9781201e+09 0.11005176 0.024629303 -39.621459 43.273175 6612.6294 1.8930000e+09 0.10837483 0.023850468 -39.696606 43.179242 6614.6033 1.7964176e+09 0.10707015 0.023524812 -39.774074 43.082408 6616.5773 1.7049215e+09 0.10538594 0.023372900 -39.849744 42.987179 6618.5512 1.6139726e+09 0.10448099 0.024187001 -39.915150 42.901118 6620.5251 1.5402882e+09 0.10336281 0.024936409 -39.980555 42.815058 6622.4990 1.4761717e+09 0.10156987 0.024625172 -40.046801 42.728997 6624.4729 1.4098466e+09 0.099545126 0.025115467 -40.115650 42.642937 6626.4468 1.3587093e+09 0.097738323 0.026021577 -40.184499 42.556876 6628.4208 1.2995589e+09 0.096345595 0.025873930 -40.254953 42.467167 6630.3947 1.2383756e+09 0.095116378 0.025929274 -40.328535 42.370347 6632.3686 1.1764532e+09 0.093854072 0.026076543 -40.402118 42.273527 6634.3425 1.1101212e+09 0.092721033 0.026351828 -40.469511 42.184852 6636.3164 1.0634715e+09 0.091405899 0.026426868 -40.534918 42.098792 6638.2904 1.0262733e+09 0.090451797 0.025658992 -40.600325 42.012731 6640.2643 9.8468458e+08 0.090533495 0.025238318 -40.669407 41.917491 6642.2382 9.4065742e+08 0.090492971 0.025161443 -40.739129 41.820656 6644.2121 8.8523817e+08 0.089589153 0.025366530 -40.807683 41.726734 6646.1860 8.4233832e+08 0.088618333 0.026016438 -40.873088 41.640674 6648.1599 8.0917387e+08 0.087571723 0.027071349 -40.938494 41.554613 6650.1339 7.8210430e+08 0.086726766 0.026285881 -41.005472 41.464621 6652.1078 7.5402364e+08 0.085987833 0.027280174 -41.075183 41.367801 6654.0817 7.1543934e+08 0.085193420 0.028001424 -41.144893 41.270982 6656.0556 6.8170910e+08 0.083373930 0.028072226 -41.208535 41.182590 6658.0295 6.5103162e+08 0.081899328 0.030113446 -41.270499 41.096529 6660.0034 6.2738250e+08 0.080319383 0.031629128 -41.332463 41.010469 6661.9774 6.0646684e+08 0.078600959 0.033032741 -41.401231 40.914957 6663.9513 5.8247472e+08 0.077055149 0.032219590 -41.470942 40.818137 6665.9252 5.5313892e+08 0.076942578 0.027031163 -41.540652 40.721317 6667.8991 5.2327462e+08 0.076115393 0.027433718 -41.610362 40.624498 6669.8730 4.9731003e+08 0.075348887 0.027459038 -41.680073 40.527678 6671.8469 4.7544105e+08 0.075095580 0.026877418 -41.744257 40.438534 6673.8209 4.6036200e+08 0.074420539 0.028686883 -41.806229 40.352462 6675.7948 4.4196812e+08 0.072528261 0.031320660 -41.868200 40.266390 6677.7687 4.2485460e+08 0.071451780 0.031265429 -41.933301 40.171617 6679.7426 4.0685518e+08 0.071491799 0.029654105 -41.999138 40.074797 6681.7165 3.8820885e+08 0.072328960 0.030207073 -42.063311 39.980425 6683.6905 3.7239920e+08 0.072687206 0.032200448 -42.121832 39.894364 6685.6644 3.5639171e+08 0.072372764 0.033406577 -42.180354 39.808304 6687.6383 3.4327490e+08 0.070385263 0.033986921 -42.241235 39.718773 6689.6122 3.3169082e+08 0.068255237 0.033464941 -42.307072 39.621953 6691.5861 3.1807049e+08 0.067380339 0.032862976 -42.372909 39.525133 6693.5600 3.0366395e+08 0.066616712 0.031411960 -42.438747 39.428313 6695.5340 2.9225913e+08 0.066365714 0.029761392 -42.504585 39.331493 6697.5079 2.8030914e+08 0.065776939 0.030155538 -42.570423 39.234673 6699.4818 2.6941219e+08 0.064477623 0.031145875 -42.636260 39.137854 6701.4557 2.5469188e+08 0.062923185 0.032078102 -42.702097 39.041034 6703.4296 2.4072942e+08 0.063047043 0.034750299 -42.763723 38.950407 6705.4035 2.2888840e+08 0.063218502 0.037386027 -42.822253 38.864335 6707.3775 2.2135808e+08 0.062875363 0.040132755 -42.880782 38.778263 6709.3514 2.1365447e+08 0.062148541 0.040909049 -42.941619 38.684973 6711.3253 2.0341850e+08 0.060506216 0.041062331 -43.003584 38.588152 6713.2992 1.9458003e+08 0.058739472 0.044768818 -43.065549 38.491332 6715.2731 1.8693743e+08 0.057106780 0.047657940 -43.127513 38.394512 6717.2470 1.8237123e+08 0.055298654 0.049858987 -43.189478 38.297693 6719.2210 1.7648659e+08 0.053456093 0.051159904 -43.251442 38.200873 6721.1949 1.6490405e+08 0.054090388 0.050362618 -43.313407 38.104054 6723.1688 1.5625888e+08 0.053116204 0.049463087 -43.375371 38.007234 6725.1427 1.5053605e+08 0.049138699 0.041486871 -43.430964 37.923554 6727.1166 1.4521865e+08 0.047704574 0.040804993 -43.486043 37.840936 6729.0906 1.4125103e+08 0.047330978 0.040985071 -43.541262 37.758028 6731.0645 1.3329173e+08 0.045658531 0.041878334 -43.603227 37.661208 6733.0384 1.2859793e+08 0.044493472 0.044132728 -43.665192 37.564388 6735.0123 1.2634604e+08 0.044404882 0.049306496 -43.727156 37.467568 6736.9862 1.2172988e+08 0.045791264 0.054083481 -43.789121 37.370748 6738.9601 1.1452114e+08 0.046318979 0.062607108 -43.851085 37.273928 6740.9341 1.1039194e+08 0.045063606 0.065646040 -43.909741 37.177096 6742.9080 1.0474262e+08 0.041637070 0.070823205 -43.967841 37.080262 6744.8819 1.0325462e+08 0.038058952 0.078475534 -44.027001 36.983432 6746.8558 98834412. 0.033689510 0.069037527 -44.088965 36.886612 6748.8297 90990167. 0.032959730 0.071382125 -44.150930 36.789793 6750.8036 87475808. 0.029825694 0.073376387 -44.210214 36.692973 6752.7776 83841324. 0.026769421 0.073234691 -44.268306 36.596154 6754.7515 84427602. 0.024995022 0.075004997 -44.326398 36.499334 6756.7254 81234061. 0.022159194 0.076033463 -44.384491 36.402514 6758.6993 77374381. 0.022379357 0.075184116 -44.442584 36.305693 6760.6732 70648286. 0.022265623 0.077345094 -44.500676 36.210919 6762.6471 67021716. 0.026417623 0.077006940 -44.558767 36.117973 6764.6211 67987474. 0.028559728 0.079513039 -44.616857 36.025027 6766.5950 66960806. 0.028485207 0.081059613 -44.674950 35.928417 6768.5689 67543135. 0.023760930 0.082903068 -44.733042 35.831597 6770.5428 64666054. 0.016881502 0.088196276 -44.794154 35.729745 6772.5167 59609263. -0.0054052919 0.092983893 -44.860545 35.619091 6774.4907 55407197. 0.0060000908 0.097771511 -44.925664 35.509883 6776.4646 49864071. 0.039271554 0.10255913 -44.979884 35.413064