# # 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 = 48.623476 km # Date (UTC) = 2014-12-30T09:37:41.208 # Date (julian) = 2457021.90117138 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.6898 6.2645071e+10 0.053574174 0.033094303 -24.875824 49.009400 6504.6915 5.8825602e+10 0.062054385 0.033697931 -24.966590 48.922125 6506.6933 5.5117806e+10 0.070836970 0.034301559 -25.055157 48.837049 6508.6951 5.1865842e+10 0.079984528 0.034905187 -25.142443 48.753255 6510.6968 4.8620488e+10 0.089418391 0.035508815 -25.229730 48.669461 6512.6986 4.5329014e+10 0.099118687 0.036112443 -25.325384 48.574617 6514.7004 4.1835316e+10 0.10899357 0.036716071 -25.423570 48.476432 6516.7022 3.8270527e+10 0.11904359 0.037319699 -25.519338 48.381437 6518.7039 3.5000142e+10 0.12938193 0.037923326 -25.606613 48.297652 6520.7057 3.2234190e+10 0.14012467 0.038526954 -25.693888 48.213868 6522.7075 2.9941957e+10 0.14932476 0.039102506 -25.781163 48.128837 6524.7092 2.7810355e+10 0.15551939 0.039678915 -25.868438 48.041562 6526.7110 2.5898068e+10 0.16018660 0.040413478 -25.955712 47.954288 6528.7128 2.4133899e+10 0.16411119 0.042007917 -26.041268 47.868732 6530.7145 2.2595725e+10 0.16783577 0.044829023 -26.125052 47.784947 6532.7163 2.1231221e+10 0.17172336 0.047282582 -26.208835 47.701163 6534.7181 1.9970108e+10 0.17352314 0.048145428 -26.292626 47.615179 6536.7198 1.8822436e+10 0.17398129 0.048434554 -26.376421 47.527893 6538.7216 1.7701909e+10 0.17424448 0.049508063 -26.460216 47.440606 6540.7234 1.6511664e+10 0.17370596 0.051195841 -26.552004 47.344994 6542.7251 1.5247384e+10 0.17206231 0.051277540 -26.646262 47.246808 6544.7269 1.4019375e+10 0.17041815 0.052234028 -26.737480 47.151757 6546.7287 1.2927479e+10 0.16841041 0.053064107 -26.817774 47.067974 6548.7304 1.2033022e+10 0.16654972 0.053885781 -26.898067 46.984191 6550.7322 1.1261153e+10 0.16521072 0.055168699 -26.979593 46.899175 6552.7340 1.0574845e+10 0.16411374 0.055402025 -27.063377 46.811900 6554.7357 9.9430733e+09 0.16250323 0.054847820 -27.147161 46.724625 6556.7375 9.3412078e+09 0.16062233 0.053904697 -27.229244 46.637345 6558.7393 8.7978033e+09 0.15850625 0.052609344 -27.309547 46.550058 6560.7411 8.2968460e+09 0.15630554 0.051606156 -27.389850 46.462772 6562.7428 7.8503169e+09 0.15434836 0.050173083 -27.467967 46.377673 6564.7446 7.4666432e+09 0.15222516 0.048434150 -27.544768 46.293888 6566.7464 7.0736622e+09 0.15030978 0.046760673 -27.621570 46.210104 6568.7481 6.6615962e+09 0.14857862 0.045083958 -27.708655 46.115374 6570.7499 6.2291760e+09 0.14736312 0.044606878 -27.798986 46.017188 6572.7517 5.8029020e+09 0.14590196 0.043799699 -27.886424 45.921335 6574.7534 5.4495623e+09 0.14387283 0.042493135 -27.963226 45.834060 6576.7552 5.1498743e+09 0.14151292 0.040502146 -28.040028 45.746785 6578.7570 4.8965356e+09 0.13857543 0.037454278 -28.116830 45.660730 6580.7587 4.6563774e+09 0.13590006 0.035819574 -28.193631 45.576947 6582.7605 4.4404890e+09 0.13363055 0.035086841 -28.270433 45.493164 6584.7623 4.2422609e+09 0.13139604 0.034100274 -28.345547 45.407683 6586.7640 4.0598923e+09 0.12939601 0.033161420 -28.418868 45.320396 6588.7658 3.8881311e+09 0.12777916 0.033124187 -28.492189 45.233110 6590.7676 3.7045624e+09 0.12574617 0.029634257 -28.573630 45.139058 6592.7693 3.5042073e+09 0.12396439 0.027326259 -28.660033 45.040872 6594.7711 3.2910510e+09 0.12202397 0.025749220 -28.745461 44.943499 6596.7729 3.0956222e+09 0.11976020 0.025723760 -28.818772 44.856224 6598.7746 2.9301180e+09 0.11810035 0.025037321 -28.892084 44.768949 6600.7764 2.7923022e+09 0.11799559 0.026586042 -28.965395 44.682407 6602.7782 2.6664439e+09 0.11709348 0.026852562 -29.038705 44.598623 6604.7800 2.5400018e+09 0.11612668 0.026534386 -29.112016 44.514839 6606.7817 2.4241481e+09 0.11500537 0.026099236 -29.184123 44.429845 6608.7835 2.3143914e+09 0.11209996 0.023711656 -29.253953 44.342558 6610.7853 2.2131822e+09 0.10909949 0.024753274 -29.323782 44.255272 6612.7870 2.1076037e+09 0.10767183 0.023732717 -29.399699 44.162739 6614.7888 1.9932081e+09 0.10640646 0.023397045 -29.482174 44.064553 6616.7906 1.8766264e+09 0.10488717 0.023406378 -29.564650 43.966367 6618.7923 1.7727128e+09 0.10401823 0.024369099 -29.635291 43.878385 6620.7941 1.6830824e+09 0.10301646 0.025023095 -29.705111 43.791110 6622.7959 1.6146873e+09 0.10125992 0.024546160 -29.774931 43.704082 6624.7976 1.5578526e+09 0.099270718 0.025289279 -29.844751 43.620299 6626.7994 1.5074994e+09 0.096957861 0.025572390 -29.914570 43.536516 6628.8012 1.4592290e+09 0.095548337 0.026028378 -29.986189 43.449764 6630.8029 1.3999375e+09 0.094025479 0.025930280 -30.064738 43.351578 6632.8047 1.3339068e+09 0.093001202 0.026128836 -30.143287 43.253392 6634.8065 1.2668197e+09 0.091906864 0.026385671 -30.216082 43.162399 6636.8082 1.2078995e+09 0.090675428 0.026235879 -30.285911 43.075113 6638.8100 1.1555341e+09 0.089809985 0.025636352 -30.355740 42.987827 6640.8118 1.1116858e+09 0.090401307 0.025171329 -30.422784 42.900549 6642.8135 1.0706809e+09 0.090124059 0.025184988 -30.489113 42.813274 6644.8153 1.0285801e+09 0.089177384 0.025431724 -30.555441 42.725999 6646.8171 9.8475416e+08 0.088069084 0.026343097 -30.629493 42.632220 6648.8189 9.3163399e+08 0.087031480 0.027512427 -30.704114 42.537961 6650.8206 8.8318787e+08 0.086694891 0.026443101 -30.775542 42.446392 6652.8224 8.4079508e+08 0.086310545 0.027476794 -30.841871 42.359117 6654.8242 8.0137306e+08 0.085209343 0.027685127 -30.908200 42.271842 6656.8259 7.7383150e+08 0.083228239 0.028748328 -30.974529 42.184567 6658.8277 7.4184050e+08 0.081645747 0.031529011 -31.040857 42.097293 6660.8295 7.1516434e+08 0.080222709 0.032379939 -31.107185 42.010018 6662.8312 6.8644984e+08 0.078903763 0.032577902 -31.176385 41.915575 6664.8330 6.4700260e+08 0.078110715 0.029158180 -31.247090 41.817374 6666.8348 6.1069079e+08 0.077704108 0.027071260 -31.317312 41.720763 6668.8365 5.7725199e+08 0.076437562 0.028211048 -31.383641 41.636980 6670.8383 5.5331563e+08 0.076257621 0.026940260 -31.449970 41.553197 6672.8401 5.3619307e+08 0.075722926 0.027366520 -31.517372 41.465874 6674.8418 5.1257183e+08 0.074370584 0.029664939 -31.588066 41.367689 6676.8436 4.8560539e+08 0.072395584 0.032257425 -31.658759 41.269503 6678.8454 4.5859743e+08 0.071924678 0.030371190 -31.723958 41.178950 6680.8471 4.4079535e+08 0.072887183 0.029624350 -31.786796 41.091675 6682.8489 4.2868666e+08 0.073461312 0.031073145 -31.849633 41.004400 6684.8507 4.1679815e+08 0.073316187 0.032697260 -31.919032 40.908014 6686.8524 3.9903478e+08 0.071908135 0.034257053 -31.989726 40.809828 6688.8542 3.7889193e+08 0.069332820 0.033982373 -32.057145 40.715798 6690.8560 3.6018560e+08 0.068411560 0.033017767 -32.116499 40.632003 6692.8578 3.4715393e+08 0.067571237 0.031769270 -32.175853 40.548207 6694.8595 3.3684823e+08 0.066854894 0.030056361 -32.240023 40.458300 6696.8613 3.2530075e+08 0.066300151 0.030033634 -32.310717 40.360115 6698.8631 3.1445285e+08 0.065027000 0.031402464 -32.381410 40.261929 6700.8648 2.9876499e+08 0.063284128 0.031309185 -32.442137 40.173329 6702.8666 2.8932306e+08 0.062675568 0.033568710 -32.501484 40.086054 6704.8684 2.8143396e+08 0.062638466 0.036603966 -32.560935 39.998681 6706.8701 2.7212772e+08 0.062110174 0.039960801 -32.627701 39.904423 6708.8719 2.6242216e+08 0.061389464 0.040993047 -32.694466 39.810164 6710.8737 2.4897722e+08 0.059681135 0.040667505 -32.761233 39.714068 6712.8754 2.3968524e+08 0.057579985 0.043455352 -32.828000 39.615881 6714.8772 2.3006850e+08 0.055450521 0.047369357 -32.894768 39.517695 6716.8790 2.2426672e+08 0.053330714 0.049696006 -32.954696 39.429565 6718.8807 2.1758020e+08 0.050945955 0.051184102 -33.014042 39.342290 6720.8825 2.1040454e+08 0.051112375 0.050317512 -33.073812 39.254616 6722.8843 2.0423490e+08 0.050146973 0.049512007 -33.140589 39.160344 6724.8860 1.9447091e+08 0.046139964 0.042527612 -33.207366 39.066073 6726.8878 1.8661259e+08 0.044157242 0.040959375 -33.272130 38.969800 6728.8896 1.7777807e+08 0.043704026 0.040888929 -33.334969 38.871614 6730.8914 1.6849612e+08 0.041852037 0.041601053 -33.397807 38.773429 6732.8931 1.6097902e+08 0.040513782 0.043904629 -33.464436 38.675242 6734.8949 1.5547594e+08 0.040284064 0.049299757 -33.531202 38.577056 6736.8967 1.4923715e+08 0.041677876 0.053744863 -33.593398 38.483441 6738.8984 1.4676657e+08 0.042278426 0.062267325 -33.649254 38.396166 6740.9002 1.4025835e+08 0.041108790 0.065588185 -33.705109 38.308891 6742.9020 1.3103777e+08 0.037666213 0.070808546 -33.764837 38.217745 6744.9037 1.2438577e+08 0.034174403 0.078492422 -33.827675 38.123486 6746.9055 1.1562682e+08 0.029636020 0.068459874 -33.890514 38.029185 6748.9073 1.1400057e+08 0.029420089 0.071790048 -33.953353 37.931009 6750.9090 1.1269953e+08 0.026626868 0.073556341 -34.016192 37.832823 6752.9108 1.0716642e+08 0.023804233 0.073080510 -34.077217 37.736452 6754.9126 1.0463214e+08 0.022220620 0.074745946 -34.136129 37.642194 6756.9143 99282873. 0.019545148 0.076519633 -34.195041 37.547936 6758.9161 95913621. 0.020448805 0.075642548 -34.257549 37.450081 6760.9179 90698687. 0.020700227 0.077811614 -34.320388 37.351895 6762.9196 86472860. 0.025756682 0.076567388 -34.381778 37.253704 6764.9214 81229997. 0.028047573 0.079527428 -34.440698 37.155504 6766.9232 79867515. 0.028277890 0.081801994 -34.499617 37.057303 6768.9249 79421123. 0.024081110 0.084184201 -34.561765 36.962350 6770.9267 75782364. 0.020365015 0.089127391 -34.624604 36.868091 6772.9285 75807712. 0.016893938 0.093982559 -34.686353 36.772742 6774.9303 72050249. 0.013044580 0.098837727 -34.745265 36.674556 6776.9320 69781522. 0.0091545368 0.10369290 -34.804177 36.576370 6778.9338 63807109. 0.0046440335 0.10854806 -34.863089 36.481058 6780.9356 58493973. -0.00034771431 0.11340323 -34.922001 36.386800 6782.9373 55658512. -0.0058190075 0.11825840 -34.980913 36.291814 6784.9391 52890200. -0.012770445 0.12311357 -35.039824 36.193628 6786.9409 52545199. -0.022985418 0.12796874 -35.098735 36.095443 6788.9426 51236192. -0.066781471 0.13282390 -35.157646 35.997257 6790.9444 50755801. -0.037091079 0.13767907 -35.216558 35.899071 6792.9462 50321831. 0.030152833 0.14253424 -35.275105 35.801250