# # 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 = 46.360645 km # Date (UTC) = 2013-11-22T10:31:33.064 # Date (julian) = 2456618.93857713 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6479.3752 1.4838625e+11 0.047683415 0.026063866 -30.470888 60.959556 6481.3526 1.2593240e+11 0.053168275 0.026660149 -30.643248 60.873377 6483.3301 1.1433562e+11 0.056272360 0.027256431 -30.838343 60.775829 6485.3075 1.0408810e+11 0.059131532 0.027852714 -31.033438 60.678281 6487.2849 9.4661556e+10 0.061859156 0.028448997 -31.221327 60.580733 6489.2623 8.6877924e+10 0.064137516 0.029045280 -31.407553 60.483185 6491.2397 7.9506023e+10 0.066351436 0.029641562 -31.580806 60.390272 6493.2171 7.3804106e+10 0.067991081 0.030237845 -31.743751 60.301040 6495.1945 6.9405911e+10 0.069161261 0.030834128 -31.906696 60.211808 6497.1719 6.5672254e+10 0.070120187 0.031430411 -32.092451 60.114431 6499.1493 6.1825744e+10 0.071106146 0.032026694 -32.278679 60.016884 6501.1267 5.7539971e+10 0.072018607 0.032622976 -32.461694 59.916124 6503.1042 5.3371216e+10 0.072247979 0.033219259 -32.643487 59.814142 6505.0816 4.9830948e+10 0.071430340 0.033815542 -32.812798 59.718140 6507.0590 4.7137570e+10 0.070303953 0.034411825 -32.967983 59.628909 6509.0364 4.4586449e+10 0.070886571 0.035008107 -33.123168 59.539677 6511.0138 4.2002980e+10 0.076048458 0.035604390 -33.294169 59.443032 6512.9912 3.9356253e+10 0.088731903 0.036200673 -33.467093 59.345486 6514.9686 3.6763905e+10 0.10560372 0.036796956 -33.626263 59.253230 6516.9460 3.4714828e+10 0.12270837 0.037393239 -33.777569 59.163998 6518.9234 3.2888707e+10 0.13659976 0.037989521 -33.929884 59.074018 6520.9008 3.0920503e+10 0.14653653 0.038585804 -34.098375 58.972036 6522.8783 2.8880364e+10 0.15390355 0.039147233 -34.266866 58.870053 6524.8557 2.6949763e+10 0.15880193 0.039730940 -34.418435 58.775198 6526.8331 2.5391968e+10 0.16198818 0.040541470 -34.565863 58.682087 6528.8105 2.4005329e+10 0.16415331 0.042085444 -34.717045 58.586973 6530.7879 2.2436552e+10 0.16616132 0.044931738 -34.881101 58.484992 6532.7653 2.0796393e+10 0.16847058 0.047323526 -35.045157 58.383011 6534.7427 1.9343964e+10 0.16887500 0.048152324 -35.189309 58.293403 6536.7201 1.8179205e+10 0.16829153 0.048434818 -35.332855 58.204172 6538.6975 1.7139523e+10 0.16811023 0.049496345 -35.482718 58.109930 6540.6749 1.5975789e+10 0.16773996 0.051172965 -35.642342 58.007947 6542.6524 1.4791446e+10 0.16668008 0.051249909 -35.798688 57.907183 6544.6298 1.3736823e+10 0.16590222 0.052155228 -35.934497 57.814058 6546.6072 1.2882874e+10 0.16482963 0.052964136 -36.070305 57.720934 6548.5846 1.2205427e+10 0.16398281 0.053842224 -36.206102 57.627816 6550.5620 1.1625335e+10 0.16342366 0.055126079 -36.341888 57.534704 6552.5394 1.1042257e+10 0.16275300 0.055450998 -36.477677 57.441591 6554.5168 1.0378265e+10 0.16129435 0.054843225 -36.628174 57.339763 6556.4942 9.6473675e+09 0.15955010 0.053940465 -36.778930 57.237782 6558.4716 8.9445405e+09 0.15768048 0.052837410 -36.915972 57.142254 6560.4490 8.3931928e+09 0.15548553 0.051869434 -37.047880 57.049144 6562.4265 7.9507695e+09 0.15330611 0.050474112 -37.181950 56.954037 6564.4039 7.5110903e+09 0.15104807 0.048588564 -37.328272 56.847621 6566.3813 7.0530433e+09 0.14940172 0.046967196 -37.474595 56.741205 6568.3587 6.6139990e+09 0.14827521 0.045441941 -37.604548 56.650164 6570.3361 6.2369697e+09 0.14736740 0.044778285 -37.732575 56.560932 6572.3135 5.9151953e+09 0.14613976 0.044050617 -37.860603 56.470470 6574.2909 5.6194404e+09 0.14427926 0.042715277 -37.988633 56.377358 6576.2683 5.3239922e+09 0.14260365 0.041062540 -38.116662 56.284246 6578.2457 5.0178032e+09 0.14077424 0.038261562 -38.251660 56.181295 6580.2232 4.7140707e+09 0.13898470 0.036314530 -38.389112 56.074881 6582.2006 4.4252125e+09 0.13730327 0.035239217 -38.520121 55.974909 6584.1780 4.1967379e+09 0.13536828 0.034418564 -38.644269 55.881797 6586.1554 4.0034475e+09 0.13344664 0.033169288 -38.768418 55.788685 6588.1328 3.8002063e+09 0.13202560 0.033335585 -38.904630 55.683511 6590.1102 3.5827844e+09 0.13000144 0.030857077 -39.042084 55.577096 6592.0876 3.3628757e+09 0.12760671 0.027988430 -39.165817 55.479347 6594.0650 3.1761735e+09 0.12513539 0.026136831 -39.282205 55.386235 6596.0424 3.0239392e+09 0.12213417 0.025727081 -39.398594 55.292837 6598.0198 2.8937365e+09 0.11985482 0.025397692 -39.514983 55.195846 6599.9973 2.7765409e+09 0.11839424 0.024989710 -39.631373 55.098854 6601.9747 2.6568613e+09 0.11710860 0.027504700 -39.756016 54.997187 6603.9521 2.5196153e+09 0.11515693 0.026099650 -39.889036 54.890772 6605.9295 2.3759626e+09 0.11476337 0.027444804 -40.017114 54.787564 6607.9069 2.2471830e+09 0.11292405 0.023916225 -40.129622 54.694451 6609.8843 2.1377657e+09 0.11038096 0.023968611 -40.242131 54.601339 6611.8617 2.0471877e+09 0.10815915 0.024408938 -40.354641 54.508228 6613.8391 1.9740843e+09 0.10722137 0.023881466 -40.467150 54.415117 6615.8165 1.8978627e+09 0.10579491 0.023276654 -40.580660 54.320484 6617.7939 1.8143868e+09 0.10510330 0.023702478 -40.704810 54.209635 6619.7714 1.7171338e+09 0.10451896 0.024712029 -40.828961 54.098786 6621.7488 1.6187350e+09 0.10351798 0.024841266 -40.940235 54.002656 6623.7262 1.5438351e+09 0.10173470 0.024760861 -41.048883 53.909530 6625.7036 1.4800307e+09 0.10050777 0.026237190 -41.161458 53.813036 6627.6810 1.4138237e+09 0.098580448 0.025579867 -41.285609 53.706620 6629.6584 1.3391782e+09 0.097294900 0.025990064 -41.409665 53.600251 6631.6358 1.2679519e+09 0.095498799 0.025995352 -41.514547 53.503195 6633.6132 1.2096575e+09 0.093936823 0.026259316 -41.619298 53.406204 6635.5906 1.1616178e+09 0.092231538 0.026488362 -41.724048 53.310845 6637.5680 1.1206983e+09 0.090677646 0.025883201 -41.828799 53.217735 6639.5455 1.0783900e+09 0.089693466 0.025433117 -41.933549 53.124624 6641.5229 1.0318889e+09 0.089625093 0.025150076 -42.047178 53.016560 6643.5003 9.8374088e+08 0.088496116 0.025268154 -42.162461 52.905710 6645.4777 9.3420005e+08 0.087232355 0.025675462 -42.271555 52.803005 6647.4551 8.9233823e+08 0.085973620 0.026677389 -42.376305 52.706014 6649.4325 8.5696611e+08 0.084912497 0.027037501 -42.481117 52.608928 6651.4099 8.2148335e+08 0.084573880 0.026798306 -42.591966 52.502512 6653.3873 7.8354456e+08 0.084262554 0.027723416 -42.702816 52.396096 6655.3647 7.4600626e+08 0.083063507 0.027760925 -42.806134 52.296793 6657.3421 7.1039159e+08 0.081547574 0.029297989 -42.907005 52.199803 6659.3196 6.7969231e+08 0.080193342 0.031767939 -43.007189 52.103499 6661.2970 6.5583843e+08 0.078927834 0.032686200 -43.104181 52.010388 6663.2744 6.3327249e+08 0.077776419 0.032407177 -43.201172 51.917277 6665.2518 6.0960980e+08 0.077349572 0.028134571 -43.306474 51.813529 6667.2292 5.8204001e+08 0.076890829 0.027187645 -43.417323 51.702680 6669.2066 5.5386734e+08 0.075811950 0.028143504 -43.522064 51.596603 6671.1840 5.2899181e+08 0.075845911 0.026867971 -43.615174 51.499612 6673.1614 5.0807571e+08 0.075359704 0.027700642 -43.708285 51.402621 6675.1388 4.8847472e+08 0.073729640 0.030064279 -43.811598 51.295004 6677.1162 4.6670835e+08 0.071716810 0.032192962 -43.918014 51.184154 6679.0937 4.4399760e+08 0.071105385 0.030190378 -44.017624 51.082377 6681.0711 4.2302734e+08 0.071999396 0.029711879 -44.110735 50.989265 6683.0485 4.0537729e+08 0.072417852 0.031259624 -44.203845 50.896153 6685.0259 3.8863142e+08 0.072106010 0.032732180 -44.305241 50.786476 6687.0033 3.7019765e+08 0.070388659 0.034341061 -44.407222 50.675626 6688.9807 3.4945498e+08 0.067660048 0.034011571 -44.500552 50.574181 6690.9581 3.3511775e+08 0.066765343 0.033006063 -44.589783 50.477190 6692.9355 3.2346263e+08 0.065989256 0.031678957 -44.680303 50.378799 6694.9129 3.0953035e+08 0.065481006 0.029981497 -44.782286 50.267949 6696.8903 2.9432109e+08 0.065139753 0.030045707 -44.884269 50.157100 6698.8678 2.7960684e+08 0.064110726 0.031408914 -44.975467 50.057971 6700.8452 2.6910955e+08 0.062522846 0.031294603 -45.064699 49.960980 6702.8226 2.6114493e+08 0.062065654 0.033533562 -45.156160 49.861462 6704.8000 2.4850439e+08 0.062307973 0.036570390 -45.253706 49.755048 6706.7774 2.3276733e+08 0.062121755 0.039799405 -45.351095 49.648755 6708.7548 2.2145006e+08 0.061692882 0.040865538 -45.436448 49.551763 6710.7322 2.1312483e+08 0.060256929 0.040639818 -45.521802 49.454772 6712.7096 2.0576181e+08 0.058384597 0.043147502 -45.612463 49.351748 6714.6870 1.9681715e+08 0.056500936 0.047355060 -45.710011 49.240899 6716.6644 1.8563627e+08 0.054759531 0.049380032 -45.804667 49.132541 6718.6419 1.7341743e+08 0.052722126 0.050812061 -45.886152 49.035536 6720.6193 1.6807030e+08 0.052610148 0.050348013 -45.967636 48.938530 6722.5967 1.6375245e+08 0.052017799 0.049867553 -46.056130 48.833180 6724.5741 1.5964793e+08 0.048801705 0.045132648 -46.149243 48.722331 6726.5515 1.5487325e+08 0.046277128 0.040956341 -46.242356 48.611481 6728.5289 1.4656692e+08 0.045861409 0.040377738 -46.335469 48.500632 6730.5063 1.3795883e+08 0.044392019 0.041073128 -46.427509 48.391061 6732.4837 1.3217527e+08 0.043040323 0.043829262 -46.508983 48.294069 6734.4611 1.2827729e+08 0.042537777 0.049325854 -46.590457 48.197077 6736.4385 1.2655572e+08 0.044137935 0.052012970 -46.675639 48.092954 6738.4160 1.2531243e+08 0.045133707 0.059611142 -46.764319 47.982105 6740.3934 1.2177879e+08 0.044674933 0.064722367 -46.854148 47.871256 6742.3708 1.1580154e+08 0.042258893 0.069514227 -46.947261 47.760407 6744.3482 1.1050607e+08 0.038311622 0.078062728 -47.040254 47.649665 6746.3256 1.0697332e+08 0.036266556 0.075201808 -47.117905 47.552622 6748.3030 1.0352885e+08 0.033641936 0.068611049 -47.195498 47.455631 6750.2804 1.0323278e+08 0.030991103 0.072482961 -47.275927 47.352730 6752.2578 1.0008710e+08 0.028339889 0.073836118 -47.360172 47.241881 6754.2352 96479397. 0.027258872 0.075835174 -47.445176 47.131032 6756.2127 93102888. 0.024935381 0.074714092 -47.533856 47.020183 6758.1901 88975299. 0.024708250 0.074107233 -47.622535 46.909334 6760.1675 82725607. 0.025271147 0.076380631 -47.707154 46.798484 6762.1449 77323876. 0.029090474 0.077817139 -47.791399 46.687634 6764.1223 73436633. 0.031836853 0.079489144 -47.875644 46.576785 6766.0997 69147565. 0.033192317 0.079939274 -47.959889 46.465935 6768.0771 68881013. 0.030154480 0.081133492 -48.039867 46.360701 6770.0545 66287211. 0.025627062 0.087011940 -48.113581 46.263711 6772.0319 60986134. 0.021427749 0.091808029 -48.187295 46.166720 6774.0093 60268958. 0.016225878 0.096604118 -48.266055 46.058259 6775.9868 55426863. 0.0023155160 0.10140021 -48.345867 45.947410 6777.9642 52113648. 0.0068791267 0.10619630 -48.428216 45.836561 6779.9416 50555347. 0.022513660 0.11099239 -48.512460 45.725712