# # 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 = 54.672614 km # Date (UTC) = 2014-12-07T09:31:59.754 # Date (julian) = 2456998.89721938 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6489.0276 1.3787706e+11 0.017895044 0.028974498 -21.056926 53.825647 6491.2717 1.1986787e+11 0.025237667 0.029651217 -21.182164 53.735632 6493.5159 1.0437534e+11 0.032224552 0.030327935 -21.317952 53.635068 6495.7600 9.2307901e+10 0.038704994 0.031004654 -21.454445 53.533799 6498.0042 8.2161379e+10 0.044748533 0.031681372 -21.580842 53.437412 6500.2483 7.3193924e+10 0.050419768 0.032358091 -21.702183 53.343470 6502.4925 6.7362124e+10 0.056022996 0.033034809 -21.823522 53.249966 6504.7366 6.2668720e+10 0.061994841 0.033711528 -21.944847 53.159951 6506.9808 5.8445130e+10 0.068580769 0.034388247 -22.066173 53.069935 6509.2249 5.3653038e+10 0.075841428 0.035064965 -22.193487 52.971211 6511.4691 4.8321919e+10 0.083795981 0.035741684 -22.325576 52.865540 6513.7132 4.3547785e+10 0.092871222 0.036418402 -22.453479 52.764333 6515.9574 3.9585484e+10 0.10348291 0.037095121 -22.570890 52.674318 6518.2016 3.6455442e+10 0.11585075 0.037771840 -22.688301 52.584303 6520.4457 3.3790472e+10 0.12985052 0.038448558 -22.802866 52.491421 6522.6899 3.1127894e+10 0.14318403 0.039097899 -22.916379 52.397479 6524.9340 2.8864595e+10 0.15395294 0.039758773 -23.029889 52.304226 6527.1782 2.6923572e+10 0.16333315 0.040845822 -23.143386 52.214211 6529.4223 2.5209784e+10 0.17056207 0.042908507 -23.256883 52.124195 6531.6665 2.3429781e+10 0.17556443 0.046198743 -23.379180 52.024471 6533.9106 2.1564478e+10 0.17696542 0.047906577 -23.506867 51.918799 6536.1548 1.9692962e+10 0.17521112 0.047928990 -23.628237 51.817224 6538.3989 1.7991401e+10 0.17483078 0.049350942 -23.737821 51.723296 6540.6431 1.6543411e+10 0.17333165 0.051157915 -23.847405 51.629368 6542.8872 1.5341738e+10 0.17117546 0.051339085 -23.956989 51.538546 6545.1314 1.4267517e+10 0.16952273 0.052456744 -24.066572 51.448531 6547.3756 1.3293672e+10 0.16759513 0.053430180 -24.175224 51.357579 6549.6197 1.2405534e+10 0.16592705 0.054597809 -24.280908 51.263637 6551.8639 1.1402355e+10 0.16453990 0.055538979 -24.386592 51.169695 6554.1080 1.0595236e+10 0.16245515 0.054834647 -24.501302 51.067732 6556.3522 9.8719160e+09 0.16065898 0.053961351 -24.620183 50.962061 6558.5963 9.2799915e+09 0.15865837 0.052731166 -24.733611 50.861236 6560.8405 8.8127634e+09 0.15602709 0.051516514 -24.839281 50.767306 6563.0846 8.1216260e+09 0.15394525 0.049830472 -24.944950 50.673377 6565.3288 7.5009088e+09 0.15181318 0.047945061 -25.050620 50.579447 6567.5729 6.9357618e+09 0.15002872 0.046132756 -25.156290 50.485518 6569.8171 6.5374137e+09 0.14831246 0.044905604 -25.264625 50.388037 6572.0612 6.2271103e+09 0.14629489 0.044195084 -25.379102 50.282366 6574.3054 5.8556842e+09 0.14359422 0.042708324 -25.493060 50.177185 6576.5496 5.4764437e+09 0.14092001 0.040738850 -25.590916 50.087158 6578.7937 5.1098148e+09 0.13767654 0.037396264 -25.688772 49.997131 6581.0379 4.7657953e+09 0.13496642 0.035585145 -25.788486 49.905244 6583.2820 4.4802537e+09 0.13308863 0.034878925 -25.890242 49.811315 6585.5262 4.2265363e+09 0.13123292 0.033550116 -25.991998 49.717385 6587.7703 3.9611669e+09 0.12991729 0.033329042 -26.090149 49.623457 6590.0145 3.7634593e+09 0.12809637 0.031035148 -26.187991 49.529529 6592.2586 3.5611166e+09 0.12577549 0.027822322 -26.290314 49.431300 6594.5028 3.3527219e+09 0.12362409 0.025896522 -26.400389 49.325627 6596.7469 3.1558686e+09 0.12120399 0.025723878 -26.508930 49.221070 6598.9911 2.9345622e+09 0.11957202 0.024933986 -26.602871 49.127129 6601.2352 2.7587714e+09 0.11980666 0.027156475 -26.696812 49.033189 6603.4794 2.6420461e+09 0.11851278 0.026379474 -26.792861 48.939254 6605.7235 2.5566957e+09 0.11767929 0.027272042 -26.890704 48.845325 6607.9677 2.4739409e+09 0.11526340 0.023796149 -26.988554 48.751384 6610.2119 2.3700548e+09 0.11189177 0.024205402 -27.094102 48.645897 6612.4560 2.2316103e+09 0.10977214 0.023980039 -27.199774 48.540224 6614.7002 2.0894216e+09 0.10859021 0.023458108 -27.294267 48.440142 6616.9443 1.9717649e+09 0.10694195 0.023430509 -27.384282 48.342300 6619.1885 1.8807301e+09 0.10585068 0.024571389 -27.474919 48.245079 6621.4326 1.8067315e+09 0.10440186 0.024946052 -27.568848 48.151151 6623.6768 1.7262178e+09 0.10209465 0.024742561 -27.662778 48.057223 6625.9209 1.6470999e+09 0.10028184 0.026496552 -27.761147 47.956195 6628.1651 1.5646778e+09 0.098066926 0.025770121 -27.862431 47.850507 6630.4092 1.4884480e+09 0.096287404 0.025929310 -27.959963 47.748733 6632.6534 1.4153725e+09 0.094735846 0.026110692 -28.049978 47.654805 6634.8975 1.3509564e+09 0.093477489 0.026392314 -28.139993 47.560877 6637.1417 1.2923630e+09 0.092129759 0.026092012 -28.235336 47.457815 6639.3859 1.2288298e+09 0.091572918 0.025490162 -28.332201 47.352143 6641.6300 1.1668854e+09 0.092202912 0.025150440 -28.425597 47.252420 6643.8742 1.1139433e+09 0.091361837 0.025324606 -28.515613 47.158491 6646.1183 1.0680731e+09 0.090353360 0.025981391 -28.605629 47.064563 6648.3625 1.0256565e+09 0.089237276 0.027206922 -28.691920 46.970633 6650.6066 9.8969383e+08 0.088499522 0.026394110 -28.778022 46.876704 6652.8508 9.4689745e+08 0.088005979 0.027484604 -28.866649 46.776370 6655.0949 9.0688874e+08 0.086659937 0.027649441 -28.959126 46.666278 6657.3391 8.5875694e+08 0.084737856 0.029294437 -29.050803 46.558215 6659.5832 8.1303435e+08 0.083179901 0.031712935 -29.136904 46.464287 6661.8274 7.8241883e+08 0.081508915 0.032956357 -29.223006 46.370359 6664.0715 7.5135870e+08 0.079930756 0.031944312 -29.312735 46.269733 6666.3157 7.2254854e+08 0.079748557 0.026970113 -29.405198 46.164060 6668.5599 6.8716173e+08 0.078543735 0.027966203 -29.494587 46.061900 6670.8040 6.5877631e+08 0.078121519 0.026956150 -29.576775 45.967971 6673.0482 6.3566050e+08 0.077442094 0.027531242 -29.658963 45.874041 6675.2923 6.1192584e+08 0.075351734 0.030358243 -29.748795 45.771376 6677.5365 5.8560925e+08 0.073334177 0.031595575 -29.841257 45.665705 6679.7806 5.5450282e+08 0.073196479 0.029622702 -29.933720 45.557952 6682.0248 5.2711375e+08 0.074013692 0.030443471 -30.026183 45.447878 6684.2689 5.0059148e+08 0.074297145 0.032667739 -30.115787 45.341056 6686.5131 4.7995136e+08 0.073326299 0.034059603 -30.194071 45.247114 6688.7572 4.5664334e+08 0.070590404 0.033959986 -30.272356 45.153172 6691.0014 4.3836602e+08 0.069481771 0.033000935 -30.356964 45.051642 6693.2455 4.2145534e+08 0.068629963 0.031519853 -30.445024 44.945972 6695.4897 3.9902543e+08 0.068267624 0.029769522 -30.529407 44.844712 6697.7338 3.8624013e+08 0.067540070 0.030184135 -30.607682 44.750783 6699.9780 3.7308137e+08 0.065956761 0.030688015 -30.685956 44.656853 6702.2222 3.5875572e+08 0.064376626 0.033054123 -30.772259 44.549676 6704.4663 3.4665141e+08 0.064682261 0.036406536 -30.860318 44.439601 6706.7105 3.2949466e+08 0.064474856 0.039682912 -30.945959 44.331946 6708.9546 3.1072572e+08 0.063930057 0.041083124 -31.029617 44.226274 6711.1988 2.9800455e+08 0.062084197 0.040918380 -31.113274 44.120603 6713.4429 2.8100672e+08 0.059947112 0.045288589 -31.196931 44.014930 6715.6871 2.6613424e+08 0.058009490 0.048081313 -31.280550 43.909340 6717.9312 2.5560317e+08 0.055812150 0.049816667 -31.358834 43.815398 6720.1754 2.4647948e+08 0.054619463 0.050399445 -31.437118 43.721457 6722.4195 2.4315550e+08 0.054174484 0.050086543 -31.515841 43.620219 6724.6637 2.3765462e+08 0.050483584 0.044384394 -31.595094 43.510144 6726.9078 2.2813263e+08 0.047914798 0.040959555 -31.675145 43.400867 6729.1520 2.1511907e+08 0.047466900 0.040944115 -31.758802 43.295196 6731.3962 2.0495122e+08 0.045592221 0.042538446 -31.842459 43.189526 6733.6403 1.9552689e+08 0.044447126 0.047400728 -31.926117 43.083853 6735.8845 1.8612357e+08 0.045833538 0.050232354 -32.009774 42.978180 6738.1286 1.7663046e+08 0.047223841 0.058029180 -32.090619 42.872509 6740.3728 1.7012245e+08 0.046789675 0.064687174 -32.169873 42.766838 6742.6169 1.6361210e+08 0.043806638 0.070114001 -32.249127 42.659549 6744.8611 1.5782335e+08 0.039972219 0.078459433 -32.328381 42.549474 6747.1052 1.5213296e+08 0.035292073 0.067324934 -32.407634 42.439824 6749.3494 1.4475674e+08 0.034587248 0.072182271 -32.486888 42.334151 6751.5935 1.4236738e+08 0.031180132 0.073962622 -32.566142 42.228479 6753.8377 1.3780905e+08 0.029322963 0.075688212 -32.634899 42.132497 6756.0818 1.3310217e+08 0.026771316 0.074377509 -32.701432 42.038568 6758.3260 1.2999167e+08 0.026374641 0.074394691 -32.774457 41.937392 6760.5702 1.2379037e+08 0.026865702 0.077148526 -32.865034 41.816621 6762.8143 1.1943687e+08 0.031727012 0.076737303 -32.951168 41.698870 6765.0585 1.1507328e+08 0.034321134 0.079541865 -33.026029 41.588779 6767.3026 1.0911340e+08 0.033539242 0.081636917 -33.100943 41.478741 6769.5468 1.0679759e+08 0.028587120 0.085780412 -33.180196 41.373070 6771.7909 1.0415244e+08 0.024498926 0.091223472 -33.259450 41.267399 6774.0351 98263339. 0.020399579 0.096666531 -33.335443 41.161727 6776.2792 90845062. 0.016288279 0.10210959 -33.410295 41.056055 6778.5234 81281363. 0.012154100 0.10755265 -33.483079 40.950382 6780.7675 80014541. 0.0081474804 0.11299571 -33.553527 40.844709 6783.0117 82658742. 0.0042364965 0.11843877 -33.624848 40.738163 6785.2558 84400545. 0.00032563840 0.12388183 -33.699698 40.628089 6787.5000 83292288. -0.0036277664 0.12932489 -33.774548 40.518014 6789.7442 80354726. -0.0076173136 0.13476795 -33.849400 40.412023 6791.9883 76082330. -0.011635764 0.14021101 -33.924251 40.306352 6794.2325 71815223. -0.015670807 0.14565407 -34.002817 40.190776 6796.4766 67997039. -0.019714521 0.15109712 -34.083330 40.070005 6798.7208 62905494. -0.023824786 0.15654018 -34.157112 39.959332 6800.9649 64567963. -0.027741310 0.16198324 -34.227560 39.853661 6803.2091 63714187. -0.031766423 0.16742630 -34.298008 39.747990 6805.4532 62294965. -0.035849116 0.17286936 -34.368456 39.642317 6807.6974 60845049. -0.039993541 0.17831242 -34.440176 39.534100 6809.9415 56451934. -0.044390847 0.18375548 -34.520689 39.408298 6812.1857 54036204. -0.048874216 0.18919854 -34.599802 39.285297 6814.4298 53874146. -0.053417356 0.19464160 -34.670250 39.179626 6816.6740 49822030. -0.059415988 0.20008466 -34.740697 39.073955 6818.9181 44635326. -0.073782258 0.20552772 -34.819882 38.955178 6821.1623 43172493. -0.070608875 0.21097078 -34.900395 38.834407 6825.6506 43451139. -0.059526848 0.22185690 -35.034230 38.621235