# # 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 = 59.442862 km # Date (UTC) = 2014-11-21T10:28:45.683 # Date (julian) = 2456982.93663985 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.9236 6.5570317e+10 0.048963450 0.032561721 98.311663 29.184318 6503.2484 5.8301108e+10 0.057541674 0.033262752 98.368688 29.049727 6505.5732 5.2477854e+10 0.066367721 0.033963783 98.423420 28.922015 6507.8979 4.7588110e+10 0.075514888 0.034664814 98.479495 28.782233 6510.2227 4.3169386e+10 0.084989265 0.035365846 98.536837 28.631059 6512.5475 3.9227668e+10 0.094875728 0.036066877 98.592625 28.491152 6514.8723 3.5913548e+10 0.10531888 0.036767908 98.647360 28.358878 6517.1971 3.3051442e+10 0.11633190 0.037468939 98.705253 28.218975 6519.5218 3.0341061e+10 0.12779874 0.038169971 98.767809 28.067801 6521.8466 2.7695919e+10 0.13966360 0.038871002 98.824355 27.925800 6524.1714 2.5437704e+10 0.14598367 0.039487853 98.874528 27.793526 6526.4962 2.3421739e+10 0.15141345 0.040188281 98.928328 27.657243 6528.8210 2.1488422e+10 0.15602382 0.042093758 98.990880 27.511282 6531.1457 1.9683902e+10 0.15990938 0.045440816 99.048795 27.370448 6533.4705 1.8049533e+10 0.16390010 0.047719547 99.098968 27.238173 6535.7953 1.6766591e+10 0.16522949 0.047879296 99.149141 27.105899 6538.1201 1.5726300e+10 0.16792751 0.049215157 99.199314 26.973626 6540.4449 1.4685135e+10 0.16924273 0.051064269 99.249491 26.841345 6542.7696 1.3590883e+10 0.16876893 0.051294439 99.306756 26.695530 6545.0944 1.2481685e+10 0.16816394 0.052456413 99.363586 26.550547 6547.4192 1.1505279e+10 0.16645093 0.053446782 99.413759 26.418274 6549.7440 1.0711978e+10 0.16472283 0.054724463 99.463932 26.286000 6552.0688 9.9605205e+09 0.16306305 0.055569458 99.520407 26.141694 6554.3935 9.2115685e+09 0.16087384 0.054840639 99.577749 25.995733 6556.7183 8.4942100e+09 0.15901802 0.053907518 99.628204 25.862922 6559.0431 7.8869743e+09 0.15661524 0.052382316 99.678377 25.730648 6561.3679 7.4289057e+09 0.15430798 0.051191394 99.728551 25.598374 6563.6927 7.0219737e+09 0.15196798 0.049127109 99.778724 25.466099 6566.0174 6.5908538e+09 0.14997402 0.047173014 99.833026 25.325943 6568.3422 6.1574934e+09 0.14892863 0.045457073 99.890368 25.179982 6570.6670 5.7311746e+09 0.14788368 0.044641212 99.942993 25.046020 6572.9918 5.3617729e+09 0.14664520 0.043662184 99.993163 24.918308 6575.3166 5.0787516e+09 0.14485495 0.042057090 100.04122 24.788465 6577.6413 4.8332967e+09 0.14272167 0.039212969 100.08684 24.656170 6579.9661 4.5840083e+09 0.14052112 0.036539374 100.13566 24.520151 6582.2909 4.3283656e+09 0.13841786 0.035214631 100.19299 24.374216 6584.6157 4.0719316e+09 0.13645408 0.034180122 100.24617 24.233115 6586.9405 3.8293474e+09 0.13449669 0.033159139 100.29179 24.100820 6589.2652 3.6308547e+09 0.13230417 0.032519748 100.33815 23.969270 6591.5900 3.4709677e+09 0.12934152 0.028536131 100.38832 23.841556 6593.9148 3.3193462e+09 0.12648034 0.026251726 100.43849 23.713843 6596.2396 3.1537499e+09 0.12351388 0.025726185 100.49056 23.568433 6598.5644 2.9787319e+09 0.12176822 0.025137716 100.54235 23.423179 6600.8891 2.8090998e+09 0.12200091 0.026817800 100.58796 23.290904 6603.2139 2.6769578e+09 0.12137769 0.026536628 100.63358 23.158629 6605.5387 2.5790754e+09 0.12098288 0.027116977 100.67919 23.030274 6607.8635 2.4776514e+09 0.11927607 0.024001929 100.72480 22.902562 6610.1883 2.3613482e+09 0.11645035 0.024182866 100.77475 22.762682 6612.5130 2.2344520e+09 0.11480234 0.023937421 100.82688 22.616721 6614.8378 2.1074098e+09 0.11406902 0.023363261 100.87414 22.484417 6617.1626 2.0022293e+09 0.11297035 0.023493162 100.91975 22.356704 6619.4874 1.9098790e+09 0.11249761 0.024643513 100.96536 22.228991 6621.8122 1.8272528e+09 0.11152763 0.024820250 101.01097 22.101278 6624.1369 1.7553635e+09 0.10961122 0.024935618 101.05658 21.973565 6626.4617 1.6890331e+09 0.10805013 0.026002617 101.10220 21.845852 6628.7865 1.6239103e+09 0.10643236 0.026022426 101.14892 21.714124 6631.1113 1.5458814e+09 0.10458447 0.025942071 101.20105 21.562951 6633.4361 1.4638457e+09 0.10310064 0.026228386 101.25153 21.417709 6635.7608 1.3908792e+09 0.10133765 0.026513889 101.29714 21.289996 6638.0856 1.3331597e+09 0.099912892 0.025667912 101.34248 21.162283 6640.4104 1.2894527e+09 0.099492376 0.025220438 101.38353 21.034569 6642.7352 1.2401332e+09 0.098854587 0.025181782 101.42458 20.906856 6645.0600 1.1829865e+09 0.097504532 0.025479778 101.47525 20.763304 6647.3847 1.1258657e+09 0.096124417 0.026640352 101.52738 20.617344 6649.7095 1.0713782e+09 0.095224439 0.026655636 101.57332 20.488695 6652.0343 1.0280351e+09 0.094827520 0.027259961 101.61894 20.360962 6654.3591 9.9040681e+08 0.094070859 0.027883250 101.66110 20.236700 6656.6839 9.5476376e+08 0.092154451 0.028623646 101.70215 20.113548 6659.0087 9.1648647e+08 0.090501003 0.031832794 101.74946 19.977506 6661.3334 8.7757549e+08 0.089153461 0.032704773 101.80159 19.831546 6663.6582 8.3504549e+08 0.087805867 0.032300807 101.84655 19.697389 6665.9830 7.9662680e+08 0.087676463 0.026936466 101.88761 19.569675 6668.3078 7.6588503e+08 0.086682676 0.027743129 101.92866 19.441961 6670.6326 7.3592994e+08 0.086212765 0.027035582 101.96971 19.314248 6672.9573 7.1154487e+08 0.085675140 0.027434485 102.01366 19.181754 6675.2821 6.7863978e+08 0.083770709 0.030338702 102.06579 19.035794 6677.6069 6.4551219e+08 0.081883085 0.031495460 102.11411 18.896105 6679.9317 6.1454517e+08 0.081827255 0.029497881 102.15516 18.768392 6682.2565 5.9210288e+08 0.082373707 0.030620481 102.19621 18.641369 6684.5812 5.7596118e+08 0.082134534 0.032683587 102.23726 18.518217 6686.9060 5.5633257e+08 0.080339443 0.034288215 102.27831 18.395066 6689.2308 5.3275363e+08 0.077243353 0.033808276 102.32499 18.250043 6691.5556 5.0451407e+08 0.076052954 0.032870185 102.37167 18.104822 6693.8804 4.8563524e+08 0.074698389 0.031302074 102.41272 17.977109 6696.2051 4.6986009e+08 0.074178002 0.029761013 102.45376 17.849396 6698.5299 4.5007842e+08 0.072893558 0.030945181 102.49979 17.710627 6700.8547 4.3120380e+08 0.070877992 0.031301666 102.54671 17.569880 6703.1795 4.1135175e+08 0.070495304 0.034124328 102.58817 17.441252 6705.5043 3.9786811e+08 0.070550672 0.037565063 102.62922 17.313540 6707.8290 3.8757259e+08 0.070131528 0.040068069 102.67460 17.176215 6710.1538 3.7036809e+08 0.068912489 0.040526601 102.72151 17.035466 6712.4786 3.5125812e+08 0.066725934 0.042718543 102.76363 16.905394 6714.8034 3.3462362e+08 0.064610321 0.047363806 102.80467 16.777681 6717.1282 3.2138683e+08 0.062443511 0.049866342 102.84573 16.652826 6719.4529 3.1300152e+08 0.060369513 0.050939521 102.88678 16.529675 6721.7777 3.0429408e+08 0.060556337 0.050538227 102.93038 16.396619 6724.1025 2.8968621e+08 0.058306142 0.049070792 102.97729 16.250659 6726.4273 2.7985198e+08 0.054504007 0.040955221 103.01883 16.116456 6728.7521 2.6822575e+08 0.053932286 0.040694003 103.05532 15.993286 6731.0768 2.6338352e+08 0.051984639 0.041902934 103.09519 15.862744 6733.4016 2.5444880e+08 0.050652371 0.046104773 103.14210 15.716807 6735.7264 2.4106984e+08 0.051687885 0.050064551 103.18901 15.572973 6738.0512 2.2836234e+08 0.053182124 0.057602814 103.23593 15.432225 6740.3760 2.1633936e+08 0.052772303 0.064692611 103.27777 15.300035 6742.7007 2.1060285e+08 0.049545068 0.070318216 103.31426 15.176865 6745.0255 2.0549679e+08 0.045710323 0.078577611 103.35383 15.046978 6747.3503 1.9955715e+08 0.041166970 0.067240569 103.40074 14.901017 6749.6751 1.9029005e+08 0.039631504 0.072093098 103.44545 14.763643 6751.9999 1.8248624e+08 0.036222071 0.074134648 103.48650 14.640491 6754.3246 1.7491619e+08 0.035115675 0.075691422 103.52767 14.514101 6756.6494 1.7258649e+08 0.032378264 0.075837942 103.56937 14.373354 6758.9742 1.6916275e+08 0.033056377 0.075765380 103.61246 14.232606 6761.2990 1.6294364e+08 0.034579759 0.077992926 103.65938 14.091857 6763.6238 1.5332586e+08 0.039749596 0.078337415 103.70268 13.955636 6765.9485 1.4532990e+08 0.042071713 0.079704351 103.73916 13.827924 6768.2733 1.4030982e+08 0.038783627 0.081839467 103.77646 13.698191 6770.5981 1.3812722e+08 0.034125591 0.088330337 103.81816 13.557443 6772.9229 1.3511304e+08 0.030000709 0.093968951 103.86110 13.416696 6775.2477 1.2769649e+08 0.026020285 0.099607565 103.90802 13.275948 6777.5724 1.2360644e+08 0.021934192 0.10524618 103.95162 13.140801 6779.8972 1.1990805e+08 0.017832681 0.11088479 103.98810 13.017648 6782.2220 1.1827670e+08 0.013651962 0.11652341 104.02525 12.892281 6784.5468 1.1611877e+08 0.0094845888 0.12216202 104.06695 12.751533 6786.8716 1.1019109e+08 0.0054611582 0.12780063 104.10865 12.610786 6789.1963 1.0437760e+08 0.0014481768 0.13343925 104.15036 12.470038 6791.5211 1.0151152e+08 -0.0026900377 0.13907786 104.19357 12.329290 6793.8459 95922205. -0.0066916080 0.14471647 104.24048 12.188543 6796.1707 89413110. -0.010619462 0.15035509 104.28547 12.047795 6798.4955 83227686. -0.014529305 0.15599370 104.32717 11.907047 6800.8202 80849419. -0.018636256 0.16163232 104.36887 11.766299 6803.1450 82716956. -0.022967951 0.16727093 104.41058 11.625552 6805.4698 78954535. -0.026930574 0.17290954 104.45228 11.484804 6807.7946 75251824. -0.030864320 0.17854816 104.49399 11.344055 6810.1194 71889793. -0.034796853 0.18418677 104.53569 11.206517 6812.4441 69733378. -0.038781615 0.18982538 104.57739 11.070982 6814.7689 69010466. -0.042845549 0.19546400 104.61909 10.931811 6817.0937 63903418. -0.046507490 0.20110261 104.66079 10.791064 6819.4185 61719275. -0.050336825 0.20674123 104.70250 10.650316 6821.7433 60638480. -0.054180687 0.21237984 104.74420 10.509568 6824.0680 57617620. -0.057676154 0.21801845 104.78591 10.368820 6826.3928 58498685. -0.061436181 0.22365707 104.82761 10.228073 6828.7176 56262780. -0.064464719 0.22929568 104.86931 10.087324 6831.0424 53969999. -0.066667608 0.23493429 104.91102 9.9467027 6833.3672 50355387. -0.067082048 0.24057291 104.95271 9.8111909 6835.6919 42956411. -0.046451813 0.24621152 104.99441 9.6751259 6838.0167 42589072. -0.069968561 0.25185013 105.03611 9.5343784 6840.3415 44683827. -0.11466265 0.25748875 105.07781 9.3946075