# # 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 = 54.975149 km # Date (UTC) = 2015-01-15T21:07:22.381 # Date (julian) = 2457038.38012015 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6514.0256 4.3830601e+10 0.11604033 0.036512582 -61.646986 38.492684 6516.0485 4.0947460e+10 0.12617763 0.037122588 -61.579514 38.381553 6518.0714 3.8226907e+10 0.13645551 0.037732594 -61.510683 38.266196 6520.0943 3.5451907e+10 0.14679902 0.038342600 -61.438106 38.139188 6522.1172 3.2516846e+10 0.15682960 0.038947953 -61.365530 38.012180 6524.1402 2.9525750e+10 0.16141402 0.039476754 -61.292954 37.885173 6526.1631 2.6826452e+10 0.16487796 0.039839059 -61.220378 37.758165 6528.1860 2.4517648e+10 0.16896333 0.041590038 -61.158980 37.648165 6530.2089 2.2705581e+10 0.17215783 0.044121179 -61.099447 37.541004 6532.2318 2.1120578e+10 0.17446871 0.046877867 -61.035512 37.427145 6534.2548 1.9479489e+10 0.17495768 0.048015822 -60.962936 37.300136 6536.2777 1.7888000e+10 0.17432931 0.048038945 -60.892093 37.175236 6538.3006 1.6447726e+10 0.17501066 0.049303054 -60.832558 37.064106 6540.3235 1.5289592e+10 0.17497571 0.051006938 -60.773023 36.952976 6542.3464 1.4242509e+10 0.17347243 0.051133763 -60.705491 36.832109 6544.3694 1.3172230e+10 0.17212666 0.051943972 -60.632915 36.705101 6546.3923 1.2169462e+10 0.17048178 0.052787301 -60.565669 36.586204 6548.4152 1.1347808e+10 0.16903128 0.053791635 -60.506134 36.479043 6550.4381 1.0668418e+10 0.16741447 0.055095058 -60.446600 36.371882 6552.4610 1.0005801e+10 0.16564702 0.055470727 -60.379503 36.247075 6554.4839 9.3126450e+09 0.16338723 0.054842536 -60.311464 36.120066 6556.5069 8.6505503e+09 0.16125453 0.053938607 -60.249246 36.003927 6558.5298 8.1179635e+09 0.15912986 0.052787865 -60.189712 35.892796 6560.5527 7.6583821e+09 0.15672177 0.051775978 -60.129523 35.779794 6562.5756 7.1931740e+09 0.15451088 0.050332180 -60.066019 35.657321 6564.5985 6.7297766e+09 0.15224672 0.048500340 -60.002514 35.534848 6566.6215 6.3139706e+09 0.15036885 0.046831328 -59.942823 35.423269 6568.6444 5.9825675e+09 0.14868399 0.045179327 -59.883288 35.312140 6570.6673 5.6854266e+09 0.14735648 0.044641093 -59.822004 35.196010 6572.6902 5.3695278e+09 0.14588884 0.043834888 -59.758500 35.073538 6574.7131 5.0517550e+09 0.14399528 0.042512490 -59.696870 34.953741 6576.7361 4.7871479e+09 0.14184309 0.040524183 -59.641297 34.842595 6578.7590 4.5681799e+09 0.13916969 0.037451112 -59.585723 34.731448 6580.7819 4.3548557e+09 0.13684932 0.035798175 -59.521218 34.612195 6582.8048 4.1336703e+09 0.13497957 0.035074784 -59.453189 34.489744 6584.8277 3.9074842e+09 0.13292636 0.034064617 -59.391539 34.373082 6586.8506 3.7252208e+09 0.13063528 0.033160300 -59.335966 34.261935 6588.8736 3.5722239e+09 0.12830398 0.033088201 -59.280395 34.150799 6590.8965 3.4050761e+09 0.12549511 0.029394468 -59.221450 34.023892 6592.9194 3.2301093e+09 0.12293200 0.027180507 -59.162483 33.896882 6594.9423 3.0622271e+09 0.12022199 0.025655235 -59.106197 33.785520 6596.9652 2.9259409e+09 0.11742932 0.025722885 -59.050630 33.678359 6598.9882 2.8142424e+09 0.11552392 0.024935384 -58.992931 33.565863 6601.0111 2.6945124e+09 0.11580330 0.027050906 -58.929427 33.438855 6603.0340 2.5652786e+09 0.11513146 0.026643148 -58.866687 33.313121 6605.0569 2.4424207e+09 0.11467691 0.026712790 -58.815092 33.205960 6607.0798 2.3415336e+09 0.11359674 0.025549355 -58.763497 33.098799 6609.1028 2.2539895e+09 0.11078131 0.023736453 -58.705415 32.983299 6611.1257 2.1555643e+09 0.10822070 0.024878315 -58.641910 32.860826 6613.1486 2.0571514e+09 0.10747059 0.023628108 -58.582454 32.742210 6615.1715 1.9684498e+09 0.10637001 0.023256808 -58.530859 32.631081 6617.1944 1.8936172e+09 0.10518335 0.023503711 -58.479264 32.519951 6619.2173 1.8195054e+09 0.10450419 0.024578356 -58.421619 32.399515 6621.2403 1.7324861e+09 0.10373961 0.025009810 -58.362651 32.277042 6623.2632 1.6454298e+09 0.10231939 0.024589331 -58.308222 32.161556 6625.2861 1.5693573e+09 0.10108213 0.025739010 -58.256626 32.050426 6627.3090 1.5099489e+09 0.099032518 0.025436180 -58.205029 31.939679 6629.3319 1.4601731e+09 0.097747685 0.026049089 -58.153434 31.832517 6631.3549 1.4145099e+09 0.095843918 0.025966812 -58.101839 31.725356 6633.3778 1.3655974e+09 0.094318813 0.026218209 -58.045992 31.609364 6635.4007 1.3096142e+09 0.092714403 0.026459878 -57.987023 31.486892 6637.4236 1.2513229e+09 0.091230031 0.025953938 -57.930798 31.368640 6639.4465 1.1997923e+09 0.090351800 0.025468474 -57.879201 31.257509 6641.4695 1.1538672e+09 0.090629138 0.025149895 -57.827605 31.146379 6643.4924 1.1133983e+09 0.089931950 0.025266960 -57.773591 31.025579 6645.5153 1.0702816e+09 0.089152338 0.025693078 -57.719159 30.903107 6647.5382 1.0257643e+09 0.088321448 0.026721149 -57.666565 30.790557 6649.5611 9.9068096e+08 0.087504409 0.026860201 -57.614968 30.683396 6651.5840 9.5653846e+08 0.087133656 0.026931752 -57.563008 30.573685 6653.6070 9.1681657e+08 0.086732409 0.027835556 -57.508576 30.446676 6655.6299 8.7593387e+08 0.085372755 0.027870485 -57.454144 30.319668 6657.6528 8.3693573e+08 0.083969804 0.029658341 -57.402332 30.210996 6659.6757 8.1077812e+08 0.082564414 0.031693642 -57.350736 30.103836 6661.6986 7.8801773e+08 0.081141080 0.032890782 -57.297993 29.990485 6663.7216 7.5719832e+08 0.079902806 0.032283251 -57.243561 29.868011 6665.7445 7.2578822e+08 0.079841026 0.027327278 -57.190488 29.748596 6667.7674 6.9831819e+08 0.079196326 0.027385336 -57.142861 29.641435 6669.7903 6.7849640e+08 0.078371525 0.027543994 -57.095235 29.534274 6671.8132 6.5733658e+08 0.078077943 0.026876938 -57.042978 29.416699 6673.8362 6.3235499e+08 0.077303559 0.028709745 -56.988545 29.294226 6675.8591 6.0690974e+08 0.075167172 0.031443794 -56.937345 29.177140 6677.8820 5.8596130e+08 0.073960679 0.031104377 -56.889711 29.065994 6679.9049 5.6837370e+08 0.073874657 0.029519995 -56.842078 28.954848 6681.9278 5.5173859e+08 0.074390843 0.030369173 -56.787951 28.832890 6683.9507 5.3054402e+08 0.074477781 0.032581910 -56.733529 28.710438 6685.9737 5.0682502e+08 0.073956496 0.033733268 -56.679098 28.587970 6687.9966 4.8314485e+08 0.071728557 0.033787095 -56.624664 28.465497 6690.0195 4.6292093e+08 0.069974886 0.033113629 -56.576120 28.351388 6692.0424 4.4885510e+08 0.069033582 0.032716067 -56.532457 28.244211 6694.0653 4.3394036e+08 0.068216528 0.031169449 -56.488496 28.136611 6696.0883 4.2116047e+08 0.068174929 0.029712455 -56.434062 28.014139 6698.1112 4.0283750e+08 0.067480442 0.030370422 -56.379629 27.891667 6700.1341 3.8711330e+08 0.066034767 0.030767182 -56.334064 27.781798 6702.1570 3.7602405e+08 0.064612820 0.033002108 -56.290406 27.674637 6704.1799 3.6370309e+08 0.064969155 0.036265911 -56.243478 27.562828 6706.2029 3.5432044e+08 0.064912804 0.038799454 -56.189046 27.440356 6708.2258 3.4039090e+08 0.064599803 0.040289435 -56.135063 27.317883 6710.2487 3.2475224e+08 0.063452779 0.040545173 -56.085166 27.195410 6712.2716 3.1336200e+08 0.061487188 0.042334247 -56.035269 27.072936 6714.2945 3.0068014e+08 0.059545075 0.047325551 -55.990952 26.964158 6716.3174 2.9167318e+08 0.057864353 0.048868930 -55.947294 26.856998 6718.3404 2.8415950e+08 0.055789366 0.050342508 -55.901298 26.744099 6720.3633 2.7401847e+08 0.055250090 0.050377673 -55.851403 26.621626 6722.3862 2.6511510e+08 0.054930464 0.050127756 -55.801508 26.499154 6724.4091 2.5183233e+08 0.052136487 0.046510228 -55.751612 26.376681 6726.4320 2.4021251e+08 0.049289927 0.040955264 -55.701715 26.254209 6728.4550 2.3170402e+08 0.048807490 0.040272927 -55.657843 26.146521 6730.4779 2.2767335e+08 0.047300373 0.041034132 -55.614184 26.039360 6732.5008 2.2044626e+08 0.045991875 0.043832404 -55.567743 25.927392 6734.5237 2.1142578e+08 0.045655851 0.049322089 -55.517846 25.809455 6736.5466 2.0305946e+08 0.047387222 0.052421591 -55.467950 25.690423 6738.5696 1.9375932e+08 0.048411238 0.060456746 -55.418053 25.567951 6740.5925 1.8815685e+08 0.047775870 0.065062499 -55.368387 25.446045 6742.6154 1.8318195e+08 0.044977872 0.070110268 -55.324729 25.338884 6744.6383 1.7653685e+08 0.041330057 0.078287128 -55.281070 25.231722 6746.6612 1.7267435e+08 0.037970876 0.071299755 -55.234186 25.116640 6748.6841 1.6758939e+08 0.036754724 0.070616223 -55.184291 24.994167 6750.7071 1.5997793e+08 0.034030748 0.073211475 -55.135814 24.871695 6752.7300 1.5431434e+08 0.031350452 0.073289747 -55.090453 24.749222 6754.7529 1.4881205e+08 0.029876386 0.075002707 -55.044601 24.627241 6756.7758 1.4459954e+08 0.027319823 0.076163215 -54.994704 24.509303 6758.7987 1.4155630e+08 0.027985602 0.075394367 -54.944808 24.391366 6760.8217 1.3643591e+08 0.028345419 0.077628139 -54.899011 24.269332 6762.8446 1.3108329e+08 0.033284794 0.076688470 -54.853652 24.146860 6764.8675 1.2914945e+08 0.035663734 0.079524845 -54.805121 24.024388 6766.8904 1.2512083e+08 0.035772466 0.081727886 -54.755224 23.901915 6768.9133 1.2152972e+08 0.031343298 0.084142421 -54.707571 23.781685 6770.9363 1.1527418e+08 0.027621630 0.089150528 -54.662212 23.663749 6772.9592 1.0768859e+08 0.023975401 0.094056996 -54.616852 23.544498 6774.9821 1.0108344e+08 0.020343345 0.098963463 -54.571491 23.422025 6777.0050 94692677. 0.016731181 0.10386993 -54.526275 23.300859 6779.0279 90383417. 0.013130933 0.10877640 -54.482616 23.193698 6781.0508 90967350. 0.0095215807 0.11368287 -54.438957 23.086537 6783.0738 90453587. 0.0059212463 0.11858933 -54.394337 22.973280 6785.0967 87231629. 0.0023289381 0.12349580 -54.348977 22.855343 6787.1196 82818179. -0.0012609635 0.12840227 -54.300887 22.728395 6789.1425 76330526. -0.0048495806 0.13330874 -54.247966 22.585506 6791.1654 74238576. -0.0084381795 0.13821520 -54.198610 22.454385 6793.1884 71801572. -0.012026692 0.14312167 -54.153249 22.336448 6795.2113 67246096. -0.015619466 0.14802814 -54.107888 22.217301 6797.2342 65691895. -0.019212634 0.15293461 -54.062529 22.094828 6799.2571 64825340. -0.022813672 0.15784107 -54.017169 21.972639 6801.2800 61722443. -0.026435647 0.16274754 -53.971808 21.854702 6803.3030 58713466. -0.030084692 0.16765401 -53.926447 21.736766 6805.3259 55210003. -0.033792034 0.17256047 -53.884985 21.614956 6807.3488 51920119. -0.037577687 0.17746694 -53.844169 21.492505 6809.3717 53527246. -0.041401238 0.18237341 -53.800386 21.373001 6811.3946 50840414. -0.045541199 0.18727988 -53.755025 21.255065 6813.4175 50243954. -0.050647826 0.19218634 -53.709664 21.135095 6815.4405 49671110. -0.062791241 0.19709281 -53.664305 21.012622 6817.4634 48035695. -0.059449628 0.20199928 -53.617102 20.886463 6819.4863 46804488. -0.047501520 0.20690575 -53.564179 20.748867