# # 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 = 84.355446 km # Date (UTC) = 2014-02-05T09:39:33.858 # Date (julian) = 2456693.90247521 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6493.5633 5.4209569e+10 0.036422650 0.030342228 88.622468 66.861636 6496.0319 4.8239184e+10 0.044234363 0.031086635 89.575305 66.449865 6498.5005 4.3437213e+10 0.051537014 0.031831042 90.452900 66.054815 6500.9691 3.9661549e+10 0.058441015 0.032575449 91.450144 65.579943 6503.4378 3.6823835e+10 0.065123985 0.033319856 92.256414 65.183663 6505.9064 3.4427876e+10 0.071843040 0.034064263 93.037570 64.777458 6508.3750 3.2082454e+10 0.078821305 0.034808670 93.763860 64.378688 6510.8436 3.0078222e+10 0.086430251 0.035553076 94.412483 64.015012 6513.3123 2.7789031e+10 0.094666723 0.036297483 95.090409 63.622088 6515.7809 2.5471926e+10 0.10376424 0.037041890 95.662558 63.277466 6518.2495 2.3199679e+10 0.11391219 0.037786297 96.320339 62.865884 6520.7181 2.1023027e+10 0.12525731 0.038530704 96.839939 62.529996 6523.1867 1.9094136e+10 0.13474006 0.039225397 97.343654 62.184232 6525.6554 1.7403496e+10 0.14138937 0.039707419 97.841568 61.848402 6528.1240 1.6053221e+10 0.14906994 0.041540847 98.323551 61.503898 6530.5926 1.4735322e+10 0.15596361 0.044658348 98.799842 61.155118 6533.0612 1.3517205e+10 0.16311641 0.047545612 99.260225 60.810973 6535.5299 1.2387980e+10 0.16719430 0.047994444 99.712287 60.467666 6537.9985 1.1297281e+10 0.17077123 0.049155967 100.06547 60.189184 6540.4671 1.0336519e+10 0.17225684 0.051074777 100.46974 59.850242 6542.9357 9.4781301e+09 0.17130326 0.051357494 100.86977 59.521139 6545.4044 8.7511391e+09 0.16959595 0.052459190 101.19969 59.242762 6547.8730 8.0916600e+09 0.16754383 0.053619343 101.56568 58.926480 6550.3416 7.5172575e+09 0.16571841 0.055070894 101.90464 58.625310 6552.8102 7.0343148e+09 0.16391174 0.055382833 102.23786 58.324001 6555.2789 6.5257656e+09 0.16186574 0.054619063 102.57712 58.007855 6557.7475 6.0503166e+09 0.15972898 0.053397588 102.87628 57.721522 6560.2161 5.5987308e+09 0.15732442 0.052079469 103.22941 57.380557 6562.6847 5.2103233e+09 0.15470246 0.050228366 103.50096 57.109043 6565.1533 4.8579264e+09 0.15250128 0.048144272 103.76279 56.837851 6567.6220 4.5347474e+09 0.15068411 0.046091297 104.03341 56.575636 6570.0906 4.2627204e+09 0.14934859 0.044879983 104.35215 56.235379 6572.5592 3.9967993e+09 0.14763702 0.043909907 104.60404 55.964109 6575.0278 3.7408100e+09 0.14567436 0.042346776 104.85593 55.692842 6577.4965 3.5046992e+09 0.14316664 0.039440549 105.10745 55.421352 6579.9651 3.3097251e+09 0.14048919 0.036539947 105.34964 55.140410 6582.4337 3.1298475e+09 0.13783832 0.035175770 105.58212 54.869190 6584.9023 2.9683121e+09 0.13527803 0.034023976 105.81464 54.597924 6587.3710 2.8133892e+09 0.13254907 0.033240559 106.04709 54.326726 6589.8396 2.6597852e+09 0.12972759 0.031380326 106.27960 54.055464 6592.3082 2.5136740e+09 0.12643260 0.027774166 106.50364 53.775844 6594.7768 2.3823060e+09 0.12341105 0.025746082 106.71835 53.503007 6597.2455 2.2586577e+09 0.12045997 0.025645272 106.90342 53.275399 6599.7141 2.1453233e+09 0.11922072 0.024972678 107.09958 53.025546 6602.1827 2.0427311e+09 0.11903130 0.027360726 107.31269 52.749299 6604.6513 1.9528969e+09 0.11811563 0.026458010 107.52145 52.478064 6607.1199 1.8632049e+09 0.11719008 0.025470148 107.70789 52.226245 6609.5886 1.7714964e+09 0.11416444 0.023880764 107.87580 51.995591 6612.0572 1.6940427e+09 0.11168852 0.024278019 108.07833 51.723413 6614.5258 1.6202818e+09 0.11076331 0.023578226 108.26964 51.446507 6616.9944 1.5445529e+09 0.10942718 0.023438376 108.42464 51.229505 6619.4631 1.4687913e+09 0.10889178 0.024637644 108.60952 50.963200 6621.9317 1.4007725e+09 0.10780701 0.024780635 108.80327 50.689428 6624.4003 1.3354181e+09 0.10591903 0.025076594 108.96414 50.451053 6626.8689 1.2714299e+09 0.10395541 0.025483801 109.12672 50.202901 6629.3376 1.2122582e+09 0.10259096 0.026048074 109.29660 49.946580 6631.8062 1.1598281e+09 0.10055281 0.026012657 109.44641 49.723566 6634.2748 1.1083291e+09 0.098754528 0.026346888 109.61860 49.446627 6636.7434 1.0611217e+09 0.096881591 0.026261049 109.75810 49.229624 6639.2121 1.0150730e+09 0.095559993 0.025552283 109.89760 49.006643 6641.6807 9.6935882e+08 0.095773202 0.025150612 110.05386 48.754892 6644.1493 9.2928260e+08 0.094360609 0.025359742 110.21257 48.502664 6646.6179 8.8748324e+08 0.092969841 0.026240004 110.35085 48.284435 6649.0865 8.4729662e+08 0.091533432 0.027514389 110.48260 48.059681 6651.5552 8.1124894e+08 0.091149037 0.026909622 110.64290 47.786221 6654.0238 7.8025532e+08 0.090532005 0.028026090 110.78007 47.558706 6656.4924 7.4879859e+08 0.088736014 0.028455608 110.90760 47.337476 6658.9610 7.1838820e+08 0.087141513 0.031765501 111.04196 47.098421 6661.4297 6.9054213e+08 0.085829708 0.032753786 111.19757 46.831750 6663.8983 6.6368751e+08 0.084413981 0.032234276 111.32158 46.614742 6666.3669 6.3908928e+08 0.084466360 0.026980092 111.44558 46.390517 6668.8355 6.1643746e+08 0.083260110 0.028210162 111.56956 46.165799 6671.3042 5.9342509e+08 0.083265393 0.026869683 111.69082 45.943802 6673.7728 5.7033287e+08 0.082541588 0.028614968 111.80943 45.722908 6676.2414 5.4616480e+08 0.080082914 0.031869308 111.96333 45.443561 6678.7100 5.2235415e+08 0.078996371 0.030461717 112.07956 45.218861 6681.1787 4.9711368e+08 0.079933754 0.029794417 112.19580 44.999842 6683.6473 4.7169165e+08 0.080397865 0.032137169 112.30858 44.779369 6686.1159 4.4724764e+08 0.079729921 0.033828516 112.41830 44.554623 6688.5845 4.2518427e+08 0.076627238 0.033920118 112.53453 44.329920 6691.0531 4.0447765e+08 0.075089256 0.032988724 112.64406 44.111892 6693.5218 3.8350684e+08 0.073980956 0.031425090 112.75702 43.890421 6695.9904 3.6512447e+08 0.073519270 0.029677550 112.87105 43.665667 6698.4590 3.4915193e+08 0.072285623 0.030847869 112.97956 43.440914 6700.9276 3.3353494e+08 0.070154370 0.031355774 113.08804 43.223931 6703.3963 3.1848086e+08 0.069816736 0.034666811 113.19106 43.001476 6705.8649 3.0636740e+08 0.069865194 0.038206200 113.29503 42.776723 6708.3335 2.9476653e+08 0.069484093 0.040406759 113.40353 42.551978 6710.8021 2.8132229e+08 0.067984866 0.040653503 113.51200 42.327276 6713.2708 2.7024604e+08 0.065814204 0.044665895 113.61404 42.108993 6715.7394 2.6008027e+08 0.063785920 0.048134806 113.71479 41.887776 6718.2080 2.5044967e+08 0.061512202 0.050136365 113.81554 41.665001 6720.6766 2.4107530e+08 0.061036672 0.050341367 113.91626 41.448048 6723.1453 2.3351941e+08 0.060124875 0.049449953 114.01702 41.223586 6725.6139 2.2541663e+08 0.055821338 0.041192562 114.11255 40.998833 6728.0825 2.1505734e+08 0.055031161 0.039745027 114.20852 40.777042 6730.5511 2.0545233e+08 0.053599649 0.041134558 114.30856 40.559332 6733.0197 1.9723990e+08 0.052335247 0.044031509 114.40153 40.334632 6735.4884 1.8918673e+08 0.053043765 0.049811872 114.50074 40.109886 6737.9570 1.8148893e+08 0.054867210 0.057184089 114.59753 39.889093 6740.4256 1.7564800e+08 0.054538163 0.064777454 114.69053 39.670391 6742.8942 1.6903955e+08 0.051184057 0.070789735 114.78351 39.445691 6745.3629 1.6333430e+08 0.047875624 0.078719431 114.87651 39.228151 6747.8315 1.5692223e+08 0.043789392 0.067074912 114.96951 39.006188 6750.3001 1.5200676e+08 0.041278239 0.072516582 115.05979 38.781453 6752.7687 1.4568839e+08 0.038698241 0.073244908 115.14548 38.557207 6755.2374 1.4114292e+08 0.036863943 0.074501280 115.23849 38.340204 6757.7060 1.3585741e+08 0.035367482 0.074597593 115.32553 38.117242 6760.1746 1.2969670e+08 0.036617383 0.076394233 115.41077 37.896220 6762.6432 1.2482116e+08 0.041679849 0.077013266 115.49601 37.677804 6765.1119 1.1981624e+08 0.045131436 0.079551612 115.58125 37.453050 6767.5805 1.1823963e+08 0.044103013 0.081325784 115.65955 37.267717 6770.0491 1.1465235e+08 0.039321137 0.086998786 115.73705 37.071558 6772.5177 1.1087823e+08 0.035388673 0.092986283 115.81500 36.847262 6774.9863 1.0583436e+08 0.031610804 0.098973780 115.90023 36.630312 6777.4550 1.0063793e+08 0.027914834 0.10496128 115.98548 36.407367 6779.9236 97516471. 0.024053866 0.11094878 116.07073 36.186314 6782.3922 94341192. 0.020231310 0.11693627 116.15453 35.967865 6784.8608 95346398. 0.015912685 0.12292377 116.23201 35.743168 6787.3295 96055228. 0.011622698 0.12891127 116.31646 35.525369 6789.7981 94968650. 0.0075420414 0.13489876 116.39701 35.303665 6792.2667 92493326. 0.0036372123 0.14088626 116.47451 35.081364 6794.7353 88576654. -5.4564960e-05 0.14687376 116.55202 34.864360 6797.2040 84946143. -0.0037531364 0.15286126 116.62950 34.647410 6799.6726 80421675. -0.0072636612 0.15884875 116.70699 34.424721 6802.1412 80094439. -0.011509871 0.16483625 116.78449 34.203417 6804.6098 80481006. -0.015925168 0.17082375 116.86199 33.986422 6807.0785 79536397. -0.020146001 0.17681125 116.93947 33.769470 6809.5471 79962099. -0.024654864 0.18279874 117.01698 33.545775 6812.0157 80635135. -0.029244672 0.18878624 117.09448 33.325468 6814.4843 81443562. -0.033894567 0.19477374 117.16648 33.118721 6816.9529 80634365. -0.038324480 0.20076124 117.22460 32.937893 6819.4216 82187382. -0.043188839 0.20674873 117.29696 32.724813 6821.8902 83659964. -0.048085968 0.21273623 117.37100 32.503534 6824.3588 84178448. -0.052909301 0.21872373 117.44076 32.286532 6826.8274 84882536. -0.057823350 0.22471123 117.51051 32.069530 6829.2961 85248773. -0.062760019 0.23069872 117.58694 31.845875 6831.7647 84933039. -0.067686007 0.23668622 117.65999 31.625586 6834.2333 83096790. -0.072523745 0.24267372 117.72974 31.408583 6836.7019 80693588. -0.077394260 0.24866122 117.79950 31.191581 6839.1706 77058907. -0.082241182 0.25464871 117.88653 30.920785 6841.6392 73713167. -0.087230496 0.26063621 117.95698 30.701627 6844.1078 71920106. -0.092477473 0.26662371 118.02673 30.479432 6846.5764 71174675. -0.097892604 0.27261121 118.09647 30.257640 6849.0451 68768307. -0.10327323 0.27859870 118.16552 30.040684 6851.5137 66300239. -0.10875601 0.28458620 118.22752 29.823679 6853.9823 64145184. -0.11435188 0.29057370 118.29571 29.606675 6856.4509 63228747. -0.12003961 0.29656119 118.36545 29.389698 6858.9195 60684896. -0.12580184 0.30254869 118.43350 29.172735 6861.3882 61564872. -0.13148924 0.30853619 118.49550 28.955733 6863.8568 63167139. -0.13704934 0.31452369 118.55751 28.738729 6866.3254 63732597. -0.14259529 0.32051118 118.63554 28.487198 6868.7940 63128166. -0.14819680 0.32649868 118.70749 28.248776 6871.2627 61744906. -0.15387614 0.33248618 118.76949 28.031773 6873.7313 60767768. -0.15949984 0.33847368 118.83168 27.814769 6876.1999 58180093. -0.16543804 0.34446117 118.90143 27.597765 6878.6685 56826293. -0.17121559 0.35044867 118.96549 27.380799 6881.1372 57308588. -0.17660405 0.35643617 119.03435 27.139773 6883.6058 59028080. -0.18170649 0.36242367 119.10548 26.890828 6886.0744 60617549. -0.18693149 0.36841116 119.16747 26.673871 6888.5430 62374436. -0.19233520 0.37439866 119.22947 26.456865 6891.0117 61983482. -0.19886082 0.38038616 119.30434 26.194816 6893.4803 59538350. -0.20737493 0.38637366 119.36946 25.966889 6895.9489 53171025. -0.22198536 0.39236115 119.42752 25.749911 6898.4175 48677123. -0.27296516 0.39834865 119.48682 25.521129 6900.8861 41002693. -0.25565796 0.40433615 119.56146 25.259900 6903.3548 34141135. -0.20940351 0.41032365 119.62344 25.042950 6905.8234 31718519. -0.14138093 0.41631114 119.67851 24.825950