# # 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 = 52.591037 km # Date (UTC) = 2013-11-27T09:58:52.330 # Date (julian) = 2456623.91588345 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.8867 5.6051513e+10 0.050208526 0.032852154 105.22662 29.334541 6504.0779 5.2086889e+10 0.059067797 0.033512900 105.28056 29.211816 6506.2691 4.8415494e+10 0.068263094 0.034173646 105.33645 29.087142 6508.4603 4.4969217e+10 0.077789813 0.034834392 105.39139 28.963418 6510.6515 4.1779032e+10 0.087700514 0.035495138 105.44298 28.843044 6512.8427 3.8667541e+10 0.097952792 0.036155884 105.49457 28.722670 6515.0339 3.5766025e+10 0.10860937 0.036816630 105.55000 28.602297 6517.2250 3.3143516e+10 0.11972361 0.037477376 105.60589 28.481923 6519.4162 3.0710755e+10 0.13125532 0.038138123 105.65933 28.361549 6521.6074 2.8493516e+10 0.14321151 0.038798869 105.71092 28.241175 6523.7986 2.6303689e+10 0.15024318 0.039377044 105.76251 28.120802 6525.9898 2.4221361e+10 0.15526225 0.039669252 105.81410 28.000428 6528.1810 2.2362396e+10 0.16129697 0.041586050 105.86569 27.880055 6530.3722 2.0673475e+10 0.16583431 0.044349712 105.92122 27.755741 6532.5633 1.9166394e+10 0.16981516 0.047154806 105.97711 27.631067 6534.7545 1.7753472e+10 0.17207774 0.048155629 106.03046 27.508922 6536.9457 1.6432847e+10 0.17318451 0.048636656 106.08206 27.388530 6539.1369 1.5258890e+10 0.17360029 0.049809342 106.13366 27.268143 6541.3281 1.4183723e+10 0.17307410 0.051220133 106.18524 27.147769 6543.5193 1.3193209e+10 0.17160073 0.051518178 106.23683 27.027396 6545.7105 1.2223655e+10 0.16957191 0.052461932 106.28438 26.907022 6547.9016 1.1287932e+10 0.16796097 0.053630242 106.33167 26.786648 6550.0928 1.0484586e+10 0.16641271 0.055008602 106.37808 26.674466 6552.2840 9.8727473e+09 0.16453046 0.055515281 106.42394 26.567469 6554.4752 9.3602333e+09 0.16232120 0.054842352 106.46982 26.460421 6556.6664 8.8472382e+09 0.16021583 0.053915155 106.52136 26.340157 6558.8576 8.2874222e+09 0.15772473 0.052508552 106.57295 26.219784 6561.0488 7.7095277e+09 0.15510160 0.051348656 106.62166 26.099410 6563.2399 7.1860121e+09 0.15295330 0.049650814 106.66895 25.979035 6565.4311 6.7166647e+09 0.15079279 0.047828851 106.71771 25.858661 6567.6223 6.2776352e+09 0.14911782 0.046091010 106.76930 25.738288 6569.8135 5.8737276e+09 0.14765950 0.044905370 106.82082 25.617989 6572.0047 5.4960365e+09 0.14610235 0.044227476 106.86812 25.501897 6574.1959 5.1474741e+09 0.14379530 0.042760932 106.91541 25.385805 6576.3871 4.8339117e+09 0.14167816 0.040925891 106.96568 25.266751 6578.5782 4.5287462e+09 0.13911063 0.037736514 107.01727 25.146377 6580.7694 4.2659541e+09 0.13657715 0.035809698 107.06537 25.030892 6582.9606 4.0443484e+09 0.13441727 0.035032387 107.10740 24.923896 6585.1518 3.8605737e+09 0.13188650 0.033849420 107.14944 24.816899 6587.3430 3.6939048e+09 0.12925869 0.033234360 107.19540 24.699888 6589.5342 3.5070127e+09 0.12672010 0.031986249 107.24269 24.579513 6591.7253 3.3147187e+09 0.12399810 0.028383440 107.28998 24.459139 6593.9165 3.1247431e+09 0.12177117 0.026250124 107.33727 24.338765 6596.1077 2.9490772e+09 0.11940528 0.025726784 107.38456 24.218806 6598.2989 2.7920277e+09 0.11788678 0.025264458 107.43185 24.102731 6600.4901 2.6465374e+09 0.11769848 0.025997406 107.47914 23.986655 6602.6813 2.5095241e+09 0.11715369 0.026935262 107.52643 23.867269 6604.8725 2.3790203e+09 0.11648735 0.026589314 107.57372 23.746896 6607.0636 2.2494358e+09 0.11552810 0.025581322 107.62101 23.626522 6609.2548 2.1295782e+09 0.11267056 0.023781628 107.66830 23.506148 6611.4460 2.0149336e+09 0.11013782 0.024674030 107.71559 23.385772 6613.6372 1.8998970e+09 0.10935826 0.023807380 107.76289 23.265380 6615.8284 1.7948254e+09 0.10801641 0.023277019 107.81018 23.144989 6618.0196 1.6963701e+09 0.10748488 0.023785574 107.85028 23.038240 6620.2108 1.6191553e+09 0.10674599 0.024835114 107.88849 22.935064 6622.4019 1.5555818e+09 0.10528279 0.024651009 107.92830 22.828869 6624.5931 1.4959049e+09 0.10345933 0.025179807 107.97559 22.708495 6626.7843 1.4322799e+09 0.10144915 0.025591617 108.02288 22.588120 6628.9755 1.3614717e+09 0.10008070 0.026099157 108.07017 22.471398 6631.1667 1.2943207e+09 0.098191249 0.025947698 108.11746 22.355324 6633.3579 1.2338420e+09 0.096582437 0.026214733 108.16250 22.236999 6635.5491 1.1803597e+09 0.094728447 0.026482126 108.20549 22.116626 6637.7402 1.1269395e+09 0.093221808 0.025798865 108.24933 21.997101 6639.9314 1.0729451e+09 0.092817782 0.025295163 108.29662 21.881025 6642.1226 1.0176552e+09 0.092955707 0.025156714 108.34391 21.764950 6644.3138 9.6684038e+08 0.092099606 0.025377521 108.38745 21.645129 6646.5050 9.2061175e+08 0.091243419 0.026181541 108.43044 21.524755 6648.6962 8.7729916e+08 0.090252269 0.027430300 108.47344 21.406716 6650.8874 8.3337756e+08 0.089948416 0.026458377 108.51644 21.290624 6653.0785 7.9383467e+08 0.089684847 0.027565759 108.55922 21.177366 6655.2697 7.6629897e+08 0.088303511 0.027721666 108.60126 21.074190 6657.4609 7.4174222e+08 0.086472939 0.029435748 108.64329 20.971014 6659.6521 7.1573853e+08 0.084947577 0.031698571 108.68590 20.857477 6661.8433 6.8530231e+08 0.083464046 0.032964449 108.72889 20.737103 6664.0345 6.5344305e+08 0.082063589 0.032079992 108.77188 20.617917 6666.2256 6.2782137e+08 0.082046116 0.026952565 108.81487 20.501842 6668.4168 6.0268287e+08 0.080992721 0.027839642 108.85786 20.385766 6670.6080 5.7869932e+08 0.080579132 0.027046947 108.90085 20.269692 6672.7992 5.5218667e+08 0.080134163 0.027342832 108.94384 20.153618 6674.9904 5.2891114e+08 0.078519642 0.029790249 108.98683 20.034860 6677.1816 5.0658474e+08 0.076239358 0.032100091 109.02982 19.914486 6679.3728 4.8076064e+08 0.075777452 0.029959740 109.07282 19.795394 6681.5639 4.6257195e+08 0.076515460 0.030090008 109.11581 19.679319 6683.7551 4.4043771e+08 0.076683312 0.032295232 109.15880 19.563244 6685.9463 4.2036804e+08 0.076036857 0.033704380 109.20179 19.447169 6688.1375 4.0321226e+08 0.073426480 0.033816930 109.24478 19.331094 6690.3287 3.8677232e+08 0.071624935 0.033078196 109.28778 19.215008 6692.5199 3.7168763e+08 0.070727827 0.032161633 109.33077 19.098916 6694.7111 3.5727648e+08 0.070108592 0.030264443 109.37239 18.982830 6696.9022 3.3988737e+08 0.069791766 0.030050649 109.41108 18.866755 6699.0934 3.2590438e+08 0.068570207 0.031504225 109.44978 18.750680 6701.2846 3.1456355e+08 0.066809140 0.031827054 109.49274 18.634605 6703.4758 2.9941420e+08 0.066829739 0.034865833 109.53573 18.518530 6705.6670 2.8907130e+08 0.066914419 0.037854367 109.57872 18.402455 6707.8582 2.7644945e+08 0.066636635 0.040063895 109.62171 18.286381 6710.0494 2.6696033e+08 0.065510294 0.040506155 109.66323 18.170306 6712.2405 2.5707318e+08 0.063368987 0.042276559 109.70192 18.054231 6714.4317 2.4904182e+08 0.061250148 0.047335865 109.74068 17.938156 6716.6229 2.4093623e+08 0.059324410 0.049318849 109.78367 17.822082 6718.8141 2.3381431e+08 0.056905541 0.051080305 109.82666 17.706007 6721.0053 2.2344044e+08 0.057169302 0.050305490 109.87050 17.578492 6723.1965 2.1059870e+08 0.056038674 0.049478516 109.91472 17.445832 6725.3877 2.0450134e+08 0.051771652 0.041333873 109.95814 17.324027 6727.5788 1.9653675e+08 0.050524538 0.040189211 110.00113 17.207952 6729.7700 1.9099960e+08 0.049436253 0.040532189 110.04271 17.091877 6731.9612 1.8146134e+08 0.047642016 0.043663004 110.08140 16.975803 6734.1524 1.7286486e+08 0.046713313 0.049344431 110.12009 16.859728 6736.3436 1.6410666e+08 0.048461735 0.051653921 110.15878 16.743653 6738.5348 1.5445971e+08 0.049541821 0.060265206 110.19747 16.627578 6740.7259 1.4491603e+08 0.048824606 0.065290519 110.23908 16.511492 6742.9171 1.3796993e+08 0.045512574 0.070845520 110.28207 16.395400 6745.1083 1.3489744e+08 0.042120910 0.078612423 110.32550 16.273500 6747.2995 1.2980128e+08 0.037602477 0.067258053 110.36972 16.140840 6749.4907 1.2452999e+08 0.036455448 0.072143582 110.41220 16.014764 6751.6819 1.1678850e+08 0.033248983 0.073999971 110.45089 15.902989 6753.8731 1.1386720e+08 0.031529769 0.075802670 110.48958 15.791214 6756.0642 1.1009043e+08 0.028986548 0.074332221 110.52827 15.675185 6758.2554 1.0735114e+08 0.028487690 0.074245464 110.56696 15.559110 6760.4466 1.0549339e+08 0.028917967 0.076912947 110.60566 15.443035 6762.6378 1.0417637e+08 0.033409584 0.077022020 110.64435 15.326960 6764.8290 1.0380712e+08 0.035978939 0.079523000 110.68490 15.206952 6767.0202 99226785. 0.035922890 0.081953178 110.72912 15.079206 6769.2114 95925345. 0.030921088 0.084966894 110.77297 14.954981 6771.4025 87538721. 0.026883517 0.090281482 110.81596 14.838907 6773.5937 82821848. 0.022816616 0.095596070 110.85895 14.722832 6775.7849 78785155. 0.018745223 0.10091066 110.89835 14.590577 6777.9761 74009768. 0.014671822 0.10622525 110.93766 14.457917 6780.1673 73085907. 0.010596198 0.11153983 110.97638 14.344895 6782.3585 69157192. 0.0065057778 0.11685442 111.01507 14.233118 6784.5497 64727830. 0.0024114439 0.12216901 111.05377 14.118702 6786.7408 60114585. -0.0017016585 0.12748360 111.09246 14.002627 6788.9320 56803601. -0.0058442196 0.13279818 111.13274 13.883190 6791.1232 57748639. -0.0099861625 0.13811277 111.17696 13.755443 6793.3144 60264460. -0.014228266 0.14342736 111.21978 13.630648 6795.5056 60389151. -0.018780065 0.14874195 111.25848 13.514574 6797.6968 58222840. -0.024823029 0.15405653 111.29717 13.398500 6799.8880 53414543. -0.041363190 0.15937112 111.34098 13.271608 6802.0791 50344576. -0.035644333 0.16468571 111.38520 13.143861 6804.2703 47618925. -0.016144509 0.17000030 111.42942 13.011734