# # 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 = 65.892210 km # Date (UTC) = 2011-11-17T10:17:01.966 # Date (julian) = 2455882.92849497 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6506.6578 1.0842537e+11 0.075812091 0.034290842 97.675038 37.401699 6509.3161 8.9767864e+10 0.086856299 0.035092469 97.762057 37.221447 6511.9745 7.4815888e+10 0.098040428 0.035894095 97.846428 37.046679 6514.6329 6.3686473e+10 0.10955058 0.036695722 97.943797 36.844995 6517.2913 5.5250218e+10 0.12150973 0.037497349 98.032425 36.661412 6519.9497 4.8230046e+10 0.13383608 0.038298976 98.115877 36.488545 6522.6080 4.2470158e+10 0.14492866 0.039076472 98.212535 36.288324 6525.2664 3.7557579e+10 0.15076882 0.039751810 98.299707 36.101426 6527.9248 3.3168700e+10 0.15488394 0.041387880 98.377197 35.928561 6530.5832 2.9644868e+10 0.15809221 0.044645121 98.471278 35.731638 6533.2415 2.6787663e+10 0.16118902 0.047622236 98.560756 35.541392 6535.8999 2.4181722e+10 0.16120375 0.047833914 98.638250 35.368525 6538.5583 2.1858017e+10 0.16296366 0.049428544 98.725033 35.174930 6541.2167 1.9906856e+10 0.16337277 0.051256262 98.811806 34.981356 6543.8751 1.8176976e+10 0.16336548 0.051611555 98.889297 34.808490 6546.5334 1.6670253e+10 0.16363729 0.052903456 98.974590 34.618225 6549.1918 1.5375558e+10 0.16347823 0.054161751 99.062859 34.422310 6551.8502 1.4128373e+10 0.16315599 0.055534180 99.140349 34.255403 6554.5086 1.3070777e+10 0.16124147 0.054843052 99.217840 34.085586 6557.1669 1.2129869e+10 0.15890256 0.053761466 99.295330 33.912722 6559.8253 1.1173614e+10 0.15596459 0.052294026 99.383297 33.716493 6562.4837 1.0298469e+10 0.15291557 0.050419646 99.466669 33.525553 6565.1421 9.5204247e+09 0.15039986 0.048157068 99.538197 33.352685 6567.8005 8.9419337e+09 0.14836826 0.045940383 99.613874 33.179818 6570.4588 8.4166979e+09 0.14683807 0.044727445 99.691473 33.006567 6573.1172 7.8744907e+09 0.14513144 0.043563424 99.774908 32.811878 6575.7756 7.3155974e+09 0.14300568 0.041596551 99.851447 32.629833 6578.4340 6.7988987e+09 0.14071587 0.037964334 99.922979 32.456966 6581.0923 6.3844950e+09 0.13826584 0.035568647 99.994512 32.284101 6583.7507 5.9898422e+09 0.13639256 0.034641686 100.06872 32.104773 6586.4091 5.5969719e+09 0.13446144 0.033166008 100.15217 31.903090 6589.0675 5.2117326e+09 0.13266675 0.032912113 100.22625 31.728753 6591.7259 4.8711710e+09 0.13014701 0.028382870 100.29778 31.561199 6594.3842 4.5871335e+09 0.12744795 0.025961600 100.36931 31.388333 6597.0426 4.3251295e+09 0.12435465 0.025709282 100.43827 31.215467 6599.7010 4.0771571e+09 0.12261512 0.024971891 100.50384 31.042599 6602.3594 3.8601127e+09 0.12160782 0.027209968 100.57390 30.874224 6605.0177 3.6380017e+09 0.12008701 0.026679926 100.64581 30.704676 6607.6761 3.4141886e+09 0.11762586 0.024371917 100.72231 30.502994 6610.3345 3.1958413e+09 0.11334702 0.024322582 100.79184 30.323501 6612.9929 2.9989006e+09 0.11082271 0.023578915 100.85741 30.156595 6615.6513 2.8355556e+09 0.10874595 0.023271569 100.92871 29.983964 6618.3096 2.6910122e+09 0.10781084 0.024004602 100.99855 29.812785 6620.9680 2.5540934e+09 0.10720200 0.025079136 101.06412 29.645879 6623.6264 2.4242952e+09 0.10566333 0.024723891 101.12969 29.475365 6626.2848 2.3101876e+09 0.10434123 0.026228092 101.19526 29.302499 6628.9431 2.2022530e+09 0.10279226 0.026086019 101.26083 29.135162 6631.6015 2.0879624e+09 0.10110540 0.025991868 101.32913 28.959558 6634.2599 1.9719752e+09 0.099655196 0.026345801 101.40563 28.757875 6636.9183 1.8508595e+09 0.098232677 0.026193150 101.47325 28.584439 6639.5766 1.7400395e+09 0.097730685 0.025421967 101.53802 28.416731 6642.2350 1.6525374e+09 0.098062788 0.025161314 101.59763 28.243863 6644.8934 1.5693307e+09 0.096950480 0.025440164 101.65996 28.073720 6647.5518 1.4965531e+09 0.095501764 0.026728296 101.72553 27.906816 6650.2102 1.4244967e+09 0.094442897 0.026303348 101.78646 27.739910 6652.8685 1.3545352e+09 0.093724848 0.027489491 101.84667 27.572397 6655.5269 1.2921688e+09 0.091806661 0.027827938 101.91224 27.399531 6658.1853 1.2307067e+09 0.089600113 0.030389699 101.97528 27.229205 6660.8437 1.1742114e+09 0.087477011 0.032392853 102.03488 27.062329 6663.5020 1.1243845e+09 0.085497161 0.032344083 102.09894 26.895430 6666.1604 1.0736891e+09 0.084796873 0.026939856 102.16479 26.726132 6668.8188 1.0202609e+09 0.083127869 0.028195356 102.23433 26.524449 6671.4772 9.6452194e+08 0.082750145 0.026872149 102.29761 26.344706 6674.1356 9.1166704e+08 0.081612817 0.029069143 102.35721 26.177800 6676.7939 8.6855843e+08 0.078894198 0.032225411 102.41682 26.010895 6679.4523 8.3092149e+08 0.078499959 0.029894000 102.47643 25.843989 6682.1107 7.9469829e+08 0.079685209 0.030509115 102.53604 25.677084 6684.7691 7.6116219e+08 0.079890894 0.032693119 102.59565 25.510178 6687.4274 7.3003932e+08 0.077868265 0.034104509 102.65526 25.343271 6690.0858 7.0024890e+08 0.075388237 0.033106028 102.71487 25.170879 6692.7442 6.7434056e+08 0.074225546 0.031901133 102.77448 24.999461 6695.4026 6.4803655e+08 0.073525895 0.029785525 102.83409 24.832556 6698.0610 6.1976126e+08 0.072637960 0.030301486 102.89538 24.649922 6700.7193 5.9140696e+08 0.070469721 0.031201268 102.95759 24.458737 6703.3777 5.6150045e+08 0.069943916 0.034620389 103.01720 24.291832 6706.0361 5.3606093e+08 0.069911565 0.038509214 103.07681 24.124927 6708.6945 5.1399984e+08 0.069224980 0.040799828 103.13642 23.958021 6711.3528 4.8933661e+08 0.067096270 0.041093673 103.19143 23.791115 6714.0112 4.6829765e+08 0.064337549 0.047304252 103.24564 23.624208 6716.6696 4.4884368e+08 0.062020229 0.049387618 103.30525 23.457303 6719.3280 4.3393588e+08 0.059378011 0.051058237 103.36237 23.290398 6721.9864 4.2092182e+08 0.059439345 0.050601093 103.41602 23.123492 6724.6447 4.0141219e+08 0.055519168 0.044542734 103.47628 22.936014 6727.3031 3.8202756e+08 0.052826202 0.040556557 103.53797 22.751472 6729.9615 3.6357910e+08 0.051579127 0.040404572 103.59758 22.590528 6732.6199 3.4965102e+08 0.049714348 0.043854324 103.65347 22.425864 6735.2782 3.4038209e+08 0.049869296 0.049588807 103.70712 22.258957 6737.9366 3.2994747e+08 0.051699928 0.057119192 103.76077 22.092051 6740.5950 3.1582452e+08 0.051176438 0.065066813 103.81682 21.917679 6743.2534 3.0118121e+08 0.046963022 0.072756703 103.87940 21.722990 6745.9118 2.8603217e+08 0.044239122 0.078950180 103.93456 21.551376 6748.5701 2.7267361e+08 0.040097087 0.070016376 103.98821 21.385382 6751.2285 2.6295188e+08 0.036621369 0.073808285 104.04185 21.224437 6753.8869 2.5444482e+08 0.033773489 0.075847413 104.09550 21.060659 6756.5453 2.4793735e+08 0.030563399 0.075569952 104.14915 20.893753 6759.2036 2.4018543e+08 0.030942420 0.075869096 104.20994 20.704651 6761.8620 2.2952872e+08 0.034142253 0.078039444 104.26931 20.519935 6764.5204 2.1819177e+08 0.037918491 0.079508216 104.32295 20.353029 6767.1788 2.0780575e+08 0.037777655 0.081775585 104.37253 20.190191 6769.8372 2.0181248e+08 0.031868755 0.086484721 104.42029 20.029089 6772.4955 1.9734428e+08 0.026834376 0.092932455 104.48289 19.834360 6775.1539 1.9098975e+08 0.021805568 0.099380190 104.54041 19.658779 6777.8123 1.8319214e+08 0.016775380 0.10582792 104.59405 19.497835 6780.4707 1.7397033e+08 0.011736231 0.11227566 104.65566 19.306849 6783.1290 1.6728574e+08 0.0066887159 0.11872339 104.71152 19.127367 6785.7874 1.6089547e+08 0.0016365014 0.12517113 104.75921 18.966422 6788.4458 1.5596007e+08 -0.0034001078 0.13161886 104.81151 18.800865 6791.1042 1.4903873e+08 -0.0084242801 0.13806660 104.86535 18.631954 6793.7625 1.4368001e+08 -0.013399283 0.14451433 104.92099 18.444180 6796.4209 1.4008372e+08 -0.018312424 0.15096207 104.97139 18.270142 6799.0793 1.3396941e+08 -0.023247197 0.15740980 105.01907 18.103237 6801.7377 1.2964765e+08 -0.028145008 0.16385753 105.08136 17.915904 6804.3961 1.2353278e+08 -0.033078858 0.17030527 105.13587 17.739466 6807.0544 1.1973522e+08 -0.037949011 0.17675300 105.18356 17.572559 6809.7128 1.1708093e+08 -0.042770611 0.18320074 105.24413 17.387607 6812.3712 1.1129899e+08 -0.047676826 0.18964847 105.30375 17.199833 6815.0296 1.0638158e+08 -0.052549880 0.19609621 105.35939 17.012059 6817.6879 1.0363271e+08 -0.057328974 0.20254394 105.40717 16.844924 6820.3463 1.0103630e+08 -0.062081692 0.20899167 105.45733 16.671519 6823.0047 97757194. -0.066846523 0.21543941 105.51296 16.483745 6825.6631 93663515. -0.071640118 0.22188714 105.56165 16.319408 6828.3215 88736350. -0.076473534 0.22833488 105.61090 16.151844 6830.9798 85637363. -0.081200676 0.23478261 105.66654 15.957114 6833.6382 84331764. -0.085813312 0.24123035 105.72217 15.767685 6836.2966 80261926. -0.090589805 0.24767808 105.77780 15.579937 6838.9550 77842358. -0.095263809 0.25412582 105.83343 15.392163 6841.6133 73019845. -0.10011876 0.26057355 105.88206 15.228052 6844.2717 68302432. -0.10500946 0.26702128 105.93137 15.061624 6846.9301 67782729. -0.10957395 0.27346902 105.98701 14.873850 6849.5885 66060944. -0.11426250 0.27991675 106.04265 14.686075 6852.2469 66498727. -0.11878591 0.28636449 106.09828 14.498301 6854.9052 64390821. -0.12358650 0.29281222 106.15392 14.310526 6857.5636 61224879. -0.12858606 0.29925996 106.20955 14.122753 6860.2220 58245537. -0.13372314 0.30570769 106.26518 13.934996 6862.8804 55819338. -0.13901160 0.31215543 106.32071 13.747258 6865.5387 53387633. -0.14461418 0.31860316 106.36939 13.559484 6868.1971 51731499. -0.15056257 0.32505089 106.42209 13.371710 6870.8555 51429445. -0.15696765 0.33149863 106.47772 13.183937 6873.5139 49954684. -0.16503108 0.33794636 106.53336 12.996162 6876.1723 47757974. -0.17737743 0.34439410 106.58900 12.808387 6878.8306 46475421. -0.22441505 0.35084183 106.64280 12.620613 6881.4890 45327440. -0.19490878 0.35728957 106.69148 12.432838 6884.1474 45835725. -0.12258746 0.36373730 106.74590 12.245096