# # 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 = 58.564304 km # Date (UTC) = 2013-11-20T07:41:19.676 # Date (julian) = 2456616.82036662 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.3850 7.0335632e+10 0.052581002 0.033002389 139.35364 30.971885 6504.5751 6.3841829e+10 0.061146399 0.033662808 139.40950 30.847274 6506.7652 5.9072530e+10 0.070176802 0.034323227 139.46535 30.722663 6508.9553 5.5003677e+10 0.079634664 0.034983647 139.52348 30.584914 6511.1454 5.1032236e+10 0.089442296 0.035644066 139.58242 30.442498 6513.3355 4.7051089e+10 0.099557655 0.036304485 139.64135 30.300083 6515.5256 4.3184093e+10 0.11000278 0.036964904 139.70028 30.157667 6517.7157 3.9920785e+10 0.12099302 0.037625324 139.75430 30.027097 6519.9058 3.7198455e+10 0.13256184 0.038285743 139.80587 29.902485 6522.0959 3.4812146e+10 0.14435591 0.038942357 139.85992 29.773515 6524.2860 3.2522341e+10 0.15067629 0.039528555 139.91886 29.636010 6526.4761 3.0045111e+10 0.15595404 0.040167200 139.97779 29.497024 6528.6662 2.7534413e+10 0.16061357 0.041970965 140.03672 29.354607 6530.8563 2.5288634e+10 0.16438131 0.045027476 140.09255 29.216917 6533.0464 2.3410442e+10 0.16869332 0.047539299 140.13982 29.092306 6535.2365 2.1929132e+10 0.17069508 0.048121710 140.18708 28.967694 6537.4266 2.0644065e+10 0.17211083 0.048886342 140.24529 28.826379 6539.6167 1.9274036e+10 0.17292650 0.050390112 140.30422 28.683963 6541.8068 1.7791643e+10 0.17188461 0.051064894 140.36315 28.545976 6543.9969 1.6411454e+10 0.17008688 0.051643531 140.42208 28.408471 6546.1870 1.5232585e+10 0.16812857 0.052618390 140.47091 28.282128 6548.3771 1.4250867e+10 0.16655413 0.053780259 140.51818 28.157517 6550.5672 1.3324605e+10 0.16484823 0.055127380 140.56908 28.023319 6552.7573 1.2381962e+10 0.16334715 0.055396156 140.62310 27.880903 6554.9474 1.1458474e+10 0.16160423 0.054852261 140.67589 27.749585 6557.1375 1.0692019e+10 0.15949443 0.053779923 140.72746 27.629271 6559.3276 1.0012136e+10 0.15702215 0.052350205 140.77945 27.505092 6561.5177 9.3292231e+09 0.15459749 0.051117569 140.83347 27.362676 6563.7078 8.6757598e+09 0.15220649 0.049109602 140.88656 27.222728 6565.8979 8.0738868e+09 0.15022708 0.047298815 140.93382 27.098117 6568.0880 7.5762543e+09 0.14900107 0.045690764 140.98109 26.973506 6570.2781 7.1068051e+09 0.14778224 0.044802308 141.03384 26.838433 6572.4682 6.6199096e+09 0.14633178 0.043962025 141.08786 26.700927 6574.6583 6.1762493e+09 0.14446172 0.042538821 141.13664 26.573416 6576.8484 5.8067392e+09 0.14238377 0.040394855 141.18391 26.448804 6579.0385 5.4912622e+09 0.13959495 0.037049326 141.23420 26.318418 6581.2286 5.1775685e+09 0.13739579 0.035527382 141.28822 26.180914 6583.4187 4.8735026e+09 0.13542675 0.034809732 141.33769 26.048716 6585.6088 4.6091224e+09 0.13311300 0.033484038 141.38066 25.924104 6587.7989 4.3828407e+09 0.13098917 0.033335379 141.42455 25.798405 6589.9890 4.1542367e+09 0.12852943 0.031083853 141.47857 25.660901 6592.1791 3.9129706e+09 0.12583470 0.027899546 141.53227 25.524222 6594.3692 3.6931268e+09 0.12355187 0.025969839 141.57954 25.403907 6596.5593 3.5024731e+09 0.12122695 0.025724731 141.62680 25.283593 6598.7494 3.3349517e+09 0.11966890 0.025049364 141.67540 25.147348 6600.9395 3.1639668e+09 0.11989277 0.026921367 141.72451 25.004931 6603.1296 3.0002602e+09 0.11922128 0.026586534 141.77236 24.877632 6605.3197 2.8603106e+09 0.11877478 0.026933270 141.81964 24.757300 6607.5098 2.7283050e+09 0.11733548 0.024700272 141.86756 24.630835 6609.6999 2.5927399e+09 0.11458100 0.023913844 141.91666 24.493353 6611.8900 2.4597088e+09 0.11230161 0.024390878 141.96379 24.359996 6614.0801 2.3467263e+09 0.11144075 0.023885283 142.00677 24.235367 6616.2702 2.2450260e+09 0.11000756 0.023324712 142.04975 24.110730 6618.4603 2.1347997e+09 0.10946548 0.024118405 142.09882 23.973309 6620.6504 2.0190325e+09 0.10882328 0.024976801 142.14792 23.835803 6622.8405 1.9053451e+09 0.10751626 0.024534269 142.19527 23.714763 6625.0306 1.8219352e+09 0.10600328 0.025434169 142.24253 23.594448 6627.2207 1.7525704e+09 0.10375934 0.025402080 142.28709 23.474134 6629.4108 1.6915286e+09 0.10235817 0.026034823 142.33006 23.353821 6631.6009 1.6290545e+09 0.10032786 0.025991810 142.37490 23.228292 6633.7910 1.5544634e+09 0.098625145 0.026290362 142.42401 23.090787 6635.9811 1.4815335e+09 0.096806502 0.026546926 142.47148 22.956725 6638.1712 1.4168195e+09 0.095499111 0.025664181 142.51445 22.832115 6640.3614 1.3649085e+09 0.095341442 0.025226440 142.55741 22.707504 6642.5515 1.3126131e+09 0.095211943 0.025174263 142.60153 22.570774 6644.7416 1.2549033e+09 0.094406332 0.025423752 142.64573 22.433268 6646.9317 1.1948571e+09 0.093479313 0.026402402 142.68882 22.311295 6649.1218 1.1444494e+09 0.092452199 0.027465852 142.73179 22.190981 6651.3119 1.1004169e+09 0.092191050 0.026723159 142.77830 22.060760 6653.5020 1.0534197e+09 0.091783973 0.027781944 142.82741 21.923256 6655.6921 1.0037497e+09 0.090307357 0.027896177 142.87321 21.795034 6657.8822 9.6543416e+08 0.088766613 0.029924391 142.91617 21.674719 6660.0723 9.2816995e+08 0.087312734 0.031691681 142.95940 21.550748 6662.2624 8.8947841e+08 0.085829713 0.032897069 143.00360 21.413242 6664.4525 8.4979229e+08 0.084771338 0.030550534 143.04758 21.278769 6666.6426 8.1357315e+08 0.084583208 0.027033807 143.09055 21.158456 6668.8327 7.8580357e+08 0.083275163 0.028207627 143.13352 21.038142 6671.0228 7.5786496e+08 0.083155619 0.026865673 143.17753 20.903229 6673.2129 7.2099961e+08 0.082654248 0.027777583 143.22173 20.765724 6675.4030 6.8606133e+08 0.080757825 0.030570198 143.26493 20.645687 6677.5931 6.5902449e+08 0.078973525 0.031515101 143.30790 20.529669 6679.7832 6.3845789e+08 0.078716728 0.029620590 143.34878 20.411565 6681.9733 6.2125822e+08 0.079244007 0.030404041 143.38745 20.291251 6684.1634 6.0105682e+08 0.079174901 0.032662383 143.42700 20.168214 6686.3535 5.8208302e+08 0.078029344 0.033966744 143.47120 20.030708 6688.5436 5.6192401e+08 0.075145957 0.033910667 143.51599 19.893202 6690.7337 5.3817559e+08 0.073748460 0.033031783 143.56511 19.755697 6692.9238 5.1277485e+08 0.072982134 0.031692594 143.61332 19.619668 6695.1139 4.8986357e+08 0.072505059 0.029838554 143.65199 19.499354 6697.3040 4.7139545e+08 0.071958598 0.030129735 143.69066 19.379040 6699.4941 4.5445626e+08 0.070590637 0.031134530 143.73353 19.249410 6701.6842 4.3421648e+08 0.068895796 0.032413346 143.77772 19.116816 6703.8743 4.1700596e+08 0.069105531 0.035862989 143.81793 18.993092 6706.0644 4.0321880e+08 0.069111422 0.038558474 143.85661 18.872778 6708.2545 3.9155669e+08 0.068678751 0.040320712 143.89747 18.745671 6710.4446 3.7865427e+08 0.067272573 0.040583519 143.94166 18.608166 6712.6347 3.6082484e+08 0.065249247 0.043008378 143.98388 18.478365 6714.8248 3.4866778e+08 0.063182939 0.047365417 144.02256 18.362330 6717.0149 3.3623962e+08 0.061115564 0.049873347 144.06141 18.245610 6719.2050 3.2563744e+08 0.058898672 0.051175073 144.10560 18.108105 6721.3951 3.1528139e+08 0.059223851 0.050422945 144.14979 17.970630 6723.5852 3.0414019e+08 0.057608912 0.049695322 144.18850 17.854489 6725.7753 2.9432808e+08 0.053483435 0.041091724 144.22718 17.738473 6727.9654 2.8252102e+08 0.052593116 0.039674189 144.26955 17.608093 6730.1555 2.7524247e+08 0.051106248 0.040592122 144.31374 17.470588 6732.3456 2.6728501e+08 0.049425848 0.043803835 144.35794 17.336187 6734.5357 2.5615320e+08 0.048891760 0.049321367 144.40213 17.203591 6736.7258 2.4508108e+08 0.050585992 0.053098979 144.44304 17.078314 6738.9159 2.3104762e+08 0.051479437 0.062363614 144.48171 16.958000 6741.1060 2.2381994e+08 0.050262390 0.066061050 144.52055 16.834388 6743.2961 2.2159826e+08 0.046240148 0.073045029 144.55983 16.701794 6745.4862 2.1207142e+08 0.043695446 0.078771288 144.60026 16.568059 6747.6763 2.0380289e+08 0.039356029 0.067128331 144.64446 16.430554 6749.8664 1.9484012e+08 0.037109232 0.072040706 144.68757 16.297261 6752.0565 1.8683322e+08 0.033977662 0.074069071 144.72625 16.181243 6754.2466 1.8165514e+08 0.032661732 0.075816871 144.76493 16.065226 6756.4367 1.7390057e+08 0.029923511 0.075290664 144.80414 15.934807 6758.6268 1.6772752e+08 0.029958867 0.075030828 144.84342 15.802212 6760.8169 1.6433769e+08 0.030168956 0.077619113 144.88680 15.665530 6763.0070 1.5780675e+08 0.035177743 0.076459168 144.93099 15.528025 6765.1971 1.5244770e+08 0.037372758 0.079567180 144.97128 15.394430 6767.3872 1.4528460e+08 0.036139342 0.081542167 145.01057 15.261836 6769.5773 1.3877122e+08 0.031086035 0.085854545 145.05359 15.129242 6771.7674 1.3641331e+08 0.026845576 0.091166504 145.09778 14.996649 6773.9575 1.3121162e+08 0.022598261 0.096478463 145.13488 14.876050 6776.1476 1.2784199e+08 0.018343736 0.10179042 145.16925 14.760032 6778.3377 1.2433365e+08 0.014081605 0.10710238 145.20557 14.635498 6780.5278 1.1947138e+08 0.0097958556 0.11241434 145.24486 14.497992 6782.7179 1.1804273e+08 0.0055437762 0.11772630 145.28592 14.362255 6784.9080 1.1419817e+08 0.0012700405 0.12303826 145.33011 14.229661 6787.0981 1.0952868e+08 -0.0030102116 0.12835022 145.37272 14.097068 6789.2882 1.0384966e+08 -0.0073152233 0.13366217 145.41201 13.964473 6791.4783 1.0024958e+08 -0.011566214 0.13897413 145.45130 13.831879 6793.6684 97158121. -0.015806215 0.14428609 145.49059 13.699286 6795.8585 95129693. -0.020010186 0.14959805 145.53111 13.566692 6798.0487 93624123. -0.024191127 0.15491001 145.57530 13.434098 6800.2388 88866487. -0.028552325 0.16022197 145.61844 13.301504 6802.4289 85677366. -0.032855379 0.16553393 145.65773 13.168910 6804.6190 79407835. -0.037428206 0.17084589 145.69702 13.036316 6806.8091 75813199. -0.041875452 0.17615784 145.73631 12.903721 6808.9992 74675278. -0.046150133 0.18146980 145.77560 12.771126 6811.1893 72888238. -0.050552405 0.18678176 145.81488 12.638532 6813.3794 73847914. -0.054741073 0.19209372 145.85417 12.505939 6815.5695 69242523. -0.059745061 0.19740568 145.89345 12.373344 6817.7596 65617407. -0.064975430 0.20271764 145.93273 12.240750 6819.9497 61934590. -0.070779919 0.20802960 145.97202 12.108156 6822.1398 59402457. -0.077299827 0.21334155 146.01131 11.975562 6824.3299 61710526. -0.084066720 0.21865351 146.05060 11.842968 6826.5200 56277051. -0.098173761 0.22396547 146.08989 11.710375 6828.7101 53454732. -0.15650562 0.22927743 146.12917 11.577779 6830.9002 48530439. -0.11948187 0.23458939 146.16846 11.445184 6833.0903 46781303. -0.014937124 0.23990135 146.21403 11.296886