# # 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 = 42.111595 km # Date (UTC) = 2015-11-21T10:35:05.004 # Date (julian) = 2457347.94103013 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6469.3361 3.9378603e+11 -0.0056237840 0.023036606 -25.829342 63.719505 6471.0638 4.1490532e+11 -0.0053440247 0.023557565 -26.034569 63.638242 6472.7914 3.1827843e+11 -2.4094154e-05 0.024078525 -26.236009 63.560765 6474.5190 2.3959273e+11 0.0058755846 0.024599484 -26.437450 63.483287 6476.2466 1.8043617e+11 0.012303954 0.025120443 -26.637181 63.405810 6477.9742 1.4181826e+11 0.018064498 0.025641402 -26.834749 63.328334 6479.7019 1.1291348e+11 0.024005638 0.026162361 -27.032316 63.250858 6481.4295 9.4908847e+10 0.028432279 0.026683321 -27.205730 63.178794 6483.1571 8.6375860e+10 0.030245186 0.027204280 -27.375207 63.107613 6484.8847 8.0818927e+10 0.031079225 0.027725239 -27.544685 63.036431 6486.6123 7.8844885e+10 0.030782334 0.028246198 -27.732666 62.955999 6488.3400 7.3853215e+10 0.031391495 0.028767157 -27.922486 62.874648 6490.0676 6.8536989e+10 0.032033081 0.029288117 -28.112305 62.793297 6491.7952 6.3336020e+10 0.032326770 0.029809076 -28.302125 62.711947 6493.5228 5.8529593e+10 0.031809906 0.030330035 -28.491945 62.630596 6495.2504 5.5017959e+10 0.030655994 0.030850994 -28.661510 62.556840 6496.9781 5.2626963e+10 0.030490785 0.031371953 -28.824209 62.485660 6498.7057 5.1003885e+10 0.034068832 0.031892913 -28.986908 62.414480 6500.4333 4.9407435e+10 0.041169723 0.032413872 -29.165038 62.335196 6502.1609 4.7305704e+10 0.050081050 0.032934831 -29.347110 62.253844 6503.8885 4.5053017e+10 0.058976791 0.033455790 -29.523553 62.173952 6505.6162 4.2890096e+10 0.066850002 0.033976749 -29.679474 62.099382 6507.3438 4.1237489e+10 0.074976939 0.034497709 -29.835394 62.024812 6509.0714 3.9690471e+10 0.083390686 0.035018668 -29.997217 61.948446 6510.7990 3.7870571e+10 0.091949766 0.035539627 -30.175414 61.867094 6512.5266 3.5765389e+10 0.10057804 0.036060586 -30.353611 61.785741 6514.2543 3.3442044e+10 0.10928280 0.036581545 -30.526513 61.701742 6515.9819 3.1157883e+10 0.11814567 0.037102504 -30.696964 61.616518 6517.7095 2.9087191e+10 0.12725745 0.037623464 -30.865237 61.532382 6519.4371 2.7298271e+10 0.13664990 0.038144423 -31.014378 61.457812 6521.1647 2.5868494e+10 0.14638626 0.038665382 -31.163518 61.383241 6522.8924 2.4576625e+10 0.15388265 0.039150927 -31.315896 61.307052 6524.6200 2.3125391e+10 0.15933686 0.039647213 -31.486346 61.221827 6526.3476 2.1536714e+10 0.16284033 0.040032510 -31.656795 61.136601 6528.0752 1.9969018e+10 0.16714657 0.041502160 -31.813154 61.057455 6529.8028 1.8655625e+10 0.17094666 0.043514645 -31.958905 60.982886 6531.5305 1.7551080e+10 0.17330704 0.046000776 -32.104656 60.908316 6533.2581 1.6519258e+10 0.17572686 0.047629265 -32.260923 60.827137 6534.9857 1.5369377e+10 0.17718384 0.048220297 -32.423625 60.741911 6536.7133 1.4230213e+10 0.17687295 0.048428731 -32.585406 60.657100 6538.4409 1.3214313e+10 0.17693408 0.049371397 -32.724378 60.582529 6540.1686 1.2407079e+10 0.17691624 0.050933736 -32.863350 60.507959 6541.8962 1.1706547e+10 0.17491848 0.051035904 -33.004082 60.432100 6543.6238 1.0962083e+10 0.17310441 0.051545613 -33.162910 60.343001 6545.3514 1.0188615e+10 0.17185766 0.052458715 -33.321739 60.253903 6547.0790 9.4520826e+09 0.17060225 0.053317423 -33.468775 60.172174 6548.8067 8.8360782e+09 0.16871947 0.053908543 -33.604356 60.097605 6550.5343 8.3113662e+09 0.16776251 0.055119139 -33.739938 60.023035 6552.2619 7.8385960e+09 0.16674860 0.055520846 -33.873643 59.946570 6553.9895 7.4150356e+09 0.16470308 0.054837647 -34.005855 59.868597 6555.7171 7.0302285e+09 0.16320445 0.054250793 -34.138068 59.790625 6557.4448 6.6630743e+09 0.16181588 0.053587329 -34.281722 59.708258 6559.1724 6.2758233e+09 0.15954540 0.052367724 -34.432778 59.623048 6560.9000 5.8837595e+09 0.15731020 0.051462841 -34.583270 59.538023 6562.6276 5.5444488e+09 0.15552025 0.050282698 -34.712092 59.460051 6564.3552 5.2894501e+09 0.15301396 0.048610601 -34.840914 59.382080 6566.0829 5.0675755e+09 0.15066952 0.047136009 -34.971125 59.303267 6567.8105 4.8033781e+09 0.14918213 0.045931904 -35.118332 59.214169 6569.5381 4.5062703e+09 0.14739355 0.044887447 -35.265539 59.125070 6571.2657 4.2015303e+09 0.14563315 0.044430701 -35.401976 59.041475 6572.9933 3.9611807e+09 0.14367282 0.043661295 -35.527390 58.963514 6574.7210 3.7725421e+09 0.14107434 0.042508729 -35.652803 58.885554 6576.4486 3.5964067e+09 0.13834491 0.040855067 -35.785856 58.801534 6578.1762 3.4124157e+09 0.13592801 0.038371372 -35.925316 58.712435 6579.9038 3.2199955e+09 0.13396501 0.036573627 -36.064776 58.623336 6581.6314 3.0552413e+09 0.13210004 0.035405400 -36.187453 58.544960 6583.3591 2.9133334e+09 0.13056830 0.034839926 -36.309477 58.467000 6585.0867 2.8007205e+09 0.12901957 0.033901474 -36.431452 58.389040 6586.8143 2.6956726e+09 0.12721081 0.033160770 -36.550094 58.311081 6588.5419 2.5988382e+09 0.12558110 0.033198955 -36.668728 58.233121 6590.2695 2.5047806e+09 0.12363522 0.030560680 -36.788415 58.154229 6591.9972 2.3879398e+09 0.12155136 0.028076731 -36.924001 58.061256 6593.7248 2.2624871e+09 0.11958698 0.026428395 -37.059587 57.968282 6595.4524 2.1384780e+09 0.11748626 0.025670486 -37.185395 57.882526 6597.1800 2.0273757e+09 0.11549543 0.025665920 -37.300641 57.804566 6598.9076 1.9416489e+09 0.11362482 0.024973826 -37.415886 57.726606 6600.6353 1.8735859e+09 0.11327094 0.026295852 -37.531131 57.648646 6602.3629 1.8063375e+09 0.11222317 0.027206966 -37.646376 57.570687 6604.0905 1.7534923e+09 0.11041965 0.026125012 -37.761621 57.492727 6605.8181 1.6889246e+09 0.10973421 0.027351381 -37.884171 57.406057 6607.5457 1.6118472e+09 0.10777334 0.024629365 -38.012008 57.313086 6609.2734 1.5379597e+09 0.10484109 0.023787132 -38.139760 57.220194 6611.0010 1.4624527e+09 0.10198399 0.024957831 -38.251720 57.142136 6612.7286 1.4031191e+09 0.10063160 0.023776370 -38.363576 57.064176 6614.4562 1.3564216e+09 0.099096642 0.023626175 -38.476021 56.985487 6616.1838 1.3051939e+09 0.097378554 0.023311152 -38.599984 56.892514 6617.9115 1.2488286e+09 0.096799914 0.023741441 -38.723947 56.799541 6619.6391 1.1915305e+09 0.096278898 0.024680113 -38.840671 56.711997 6621.3667 1.1350014e+09 0.095628744 0.024967903 -38.949137 56.630647 6623.0943 1.0879669e+09 0.094540165 0.024526770 -39.057603 56.549297 6624.8219 1.0459868e+09 0.093467238 0.025302289 -39.166069 56.469699 6626.5496 1.0139177e+09 0.091993856 0.025890715 -39.274535 56.391740 6628.2772 9.8358814e+08 0.090892803 0.025815632 -39.383000 56.313780 6630.0048 9.4957890e+08 0.089826131 0.025928314 -39.495858 56.227313 6631.7324 9.0889374e+08 0.088381926 0.026005165 -39.612073 56.134342 6633.4600 8.6117288e+08 0.087422857 0.026232571 -39.728289 56.041370 6635.1877 8.2427080e+08 0.086340417 0.026427930 -39.833529 55.959849 6636.9153 7.9259750e+08 0.085087136 0.026194313 -39.938606 55.878499 6638.6429 7.6557113e+08 0.084171524 0.025643633 -40.043564 55.797149 6640.3705 7.3971814e+08 0.084426189 0.025225319 -40.145266 55.715787 6642.0981 7.1453834e+08 0.084307973 0.025155712 -40.246969 55.634426 6643.8258 6.9043164e+08 0.083309431 0.025317298 -40.349578 55.552075 6645.5534 6.6373518e+08 0.082473086 0.025710921 -40.461920 55.459102 6647.2810 6.3422421e+08 0.081502232 0.026585726 -40.574263 55.366128 6649.0086 6.0060173e+08 0.080419818 0.027621809 -40.679528 55.279012 6650.7362 5.7531286e+08 0.080098704 0.026423782 -40.777824 55.197663 6652.4639 5.5282967e+08 0.079610109 0.027378147 -40.876120 55.116315 6654.1915 5.3359219e+08 0.078813160 0.027954655 -40.982192 55.028531 6655.9191 5.1251727e+08 0.077394069 0.027989989 -41.094534 54.935557 6657.6467 4.8818678e+08 0.076381808 0.029651282 -41.206877 54.842584 6659.3743 4.6565134e+08 0.075327598 0.031756512 -41.302270 54.760911 6661.1020 4.4726959e+08 0.074376614 0.032586878 -41.397178 54.679561 6662.8296 4.3697875e+08 0.073490753 0.032578830 -41.492384 54.597956 6664.5572 4.1865199e+08 0.072830145 0.030167332 -41.600853 54.504984 6666.2848 3.9565368e+08 0.072933941 0.026964095 -41.709321 54.412011 6668.0124 3.7413293e+08 0.072487824 0.027481780 -41.811815 54.324160 6669.7401 3.5461550e+08 0.071992697 0.027595614 -41.906722 54.242810 6671.4677 3.4064556e+08 0.071909443 0.026872013 -42.001629 54.161460 6673.1953 3.2971083e+08 0.071495013 0.027751296 -42.094874 54.080110 6674.9229 3.2057831e+08 0.070138706 0.029733331 -42.186392 53.998762 6676.6505 3.1481461e+08 0.068089566 0.032132990 -42.277910 53.917413 6678.3782 3.0752390e+08 0.067341838 0.030683688 -42.376491 53.829786 6680.1058 2.9346010e+08 0.067623353 0.029464258 -42.481085 53.736813 6681.8334 2.7702138e+08 0.068102072 0.030296726 -42.585680 53.643840 6683.5610 2.6583659e+08 0.068191311 0.032010754 -42.674488 53.558761 6685.2886 2.5708757e+08 0.067716781 0.033009707 -42.762616 53.474022 6687.0163 2.4904248e+08 0.065952236 0.034333835 -42.850890 53.389187 6688.7439 2.3787152e+08 0.063426297 0.033956902 -42.951572 53.296241 6690.4715 2.2352507e+08 0.062247479 0.033061830 -43.052294 53.203268 6692.1991 2.1088859e+08 0.061163443 0.032534109 -43.147637 53.115260 6693.9267 2.0342094e+08 0.060072397 0.031286162 -43.235765 53.033910 6695.6544 1.9970348e+08 0.059766291 0.029739277 -43.323893 52.952560 6697.3820 1.9533103e+08 0.058969246 0.030139605 -43.416178 52.865668 6699.1096 1.9124884e+08 0.057585814 0.031489308 -43.513025 52.772694 6700.8372 1.8441161e+08 0.055859104 0.031288703 -43.609871 52.679721 6702.5648 1.7664059e+08 0.054987479 0.033327752 -43.695876 52.594121 6704.2925 1.6634886e+08 0.054833657 0.036321163 -43.780615 52.509382 6706.0201 1.6057237e+08 0.054480507 0.038481340 -43.865354 52.424643 6707.7477 1.5204300e+08 0.053829603 0.040079720 -43.957876 52.332122 6709.4753 1.4605946e+08 0.052706358 0.040830221 -44.050850 52.239150 6711.2029 1.4311701e+08 0.050925889 0.040923115 -44.140828 52.149173 6712.9306 1.3736681e+08 0.049013809 0.043557685 -44.225567 52.064434 6714.6582 1.3629865e+08 0.047123609 0.047352890 -44.310306 51.979695 6716.3858 1.2977916e+08 0.045237289 0.048969597 -44.398450 51.891551 6718.1134 1.2418727e+08 0.043202167 0.049989045 -44.491421 51.798577 6719.8410 1.1798618e+08 0.041816598 0.050570797 -44.584393 51.705604 6721.5687 1.1312551e+08 0.041661567 0.050475237 -44.674143 51.609408 6723.2963 1.0697913e+08 0.040020074 0.049534180 -44.763243 51.512561 6725.0239 99304324. 0.035620395 0.041561096 -44.850400 51.419601 6726.7515 97506243. 0.034047147 0.040958145 -44.931748 51.338252 6728.4791 94064294. 0.033424231 0.040307187 -45.013097 51.256904 6730.2068 87588336. 0.031423413 0.040662384 -45.096775 51.170898 6731.9344 79171790. 0.028873776 0.043609597 -45.185874 51.074050 6733.6620 72884498. 0.026888813 0.047518452 -45.274973 50.977203 6735.3896 70719531. 0.026969333 0.049707034 -45.353624 50.891501 6737.1172 75303652. 0.028434503 0.054509008 -45.428195 50.810151 6738.8449 73931283. 0.027633732 0.061972386 -45.502766 50.728801 6740.5725 70497323. 0.024142690 0.065028330 -45.588506 50.635536 6742.3001 65596468. 0.015285771 0.069341979 -45.677605 50.538689 6744.0277 57186115. -0.025379795 0.077814846 -45.765978 50.442569 6745.7553 54822007. -0.00052312586 0.078884421 -45.851203 50.349597 6749.2106 52497525. 0.063528247 0.072220279 -46.021653 50.161306