# # 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 = 56.327187 km # Date (UTC) = 2013-11-25T10:02:13.664 # Date (julian) = 2456621.91821370 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.7139 6.2516397e+10 0.059512156 0.033403122 104.40627 29.567550 6506.0070 5.7848532e+10 0.069240343 0.034094612 104.46362 29.438211 6508.3002 5.3601733e+10 0.079328111 0.034786101 104.51761 29.312237 6510.5933 4.9439665e+10 0.089721494 0.035477591 104.57174 29.186129 6512.8864 4.5562473e+10 0.10047419 0.036169080 104.63023 29.055636 6515.1796 4.1957699e+10 0.11160443 0.036860570 104.68873 28.925142 6517.4727 3.8207132e+10 0.12293940 0.037552059 104.74981 28.783766 6519.7658 3.4536475e+10 0.13450814 0.038243549 104.81152 28.639792 6522.0590 3.1056754e+10 0.14617472 0.038932697 104.86657 28.511343 6524.3521 2.8159533e+10 0.15213663 0.039552054 104.92056 28.385368 6526.6453 2.5874485e+10 0.15744773 0.040344567 104.97455 28.256514 6528.9384 2.3792116e+10 0.16156952 0.042186916 105.02853 28.126040 6531.2315 2.1865531e+10 0.16537155 0.045565682 105.08252 27.997443 6533.5247 2.0116829e+10 0.16883517 0.047742557 105.13651 27.871469 6535.8178 1.8537544e+10 0.16957236 0.047869534 105.19050 27.745495 6538.1109 1.7101894e+10 0.17160145 0.049210706 105.24449 27.619520 6540.4041 1.5766541e+10 0.17230797 0.051045002 105.29848 27.493545 6542.6972 1.4583141e+10 0.17137030 0.051266942 105.35247 27.367570 6544.9904 1.3485533e+10 0.17061561 0.052447746 105.40646 27.241595 6547.2835 1.2472577e+10 0.16870573 0.053395173 105.45708 27.112250 6549.5766 1.1569684e+10 0.16672869 0.054553916 105.50657 26.981777 6551.8698 1.0774032e+10 0.16498320 0.055541054 105.55843 26.853672 6554.1629 1.0089765e+10 0.16253945 0.054835799 105.61242 26.727697 6556.4560 9.4500459e+09 0.16045897 0.053946078 105.66641 26.601722 6558.7492 8.8081666e+09 0.15809629 0.052600908 105.72039 26.475748 6561.0423 8.1970831e+09 0.15536202 0.051351826 105.77401 26.349773 6563.3355 7.6342720e+09 0.15315304 0.049540319 105.82351 26.223779 6565.6286 7.1329100e+09 0.15093588 0.047604619 105.87301 26.097785 6567.9217 6.6889240e+09 0.14942509 0.045837839 105.92250 25.971807 6570.2149 6.2839930e+09 0.14806723 0.044828502 105.97199 25.845832 6572.5080 5.8999688e+09 0.14643021 0.043939233 106.02434 25.719858 6574.8011 5.5440255e+09 0.14444762 0.042470217 106.07834 25.593884 6577.0943 5.2168432e+09 0.14219932 0.040072278 106.13046 25.467910 6579.3874 4.9245316e+09 0.13944616 0.036857516 106.17996 25.341935 6581.6806 4.6515043e+09 0.13715256 0.035390527 106.22945 25.215960 6583.9737 4.3996772e+09 0.13475157 0.034528826 106.27894 25.089985 6586.2668 4.1643068e+09 0.13244098 0.033167847 106.32843 24.964010 6588.5600 3.9428583e+09 0.13032212 0.033192927 106.37792 24.838036 6590.8531 3.7357995e+09 0.12728829 0.029475155 106.42741 24.712061 6593.1462 3.5370086e+09 0.12439780 0.026966258 106.47690 24.586087 6595.4394 3.3447759e+09 0.12104849 0.025669136 106.52639 24.460112 6597.7325 3.1585573e+09 0.11830811 0.025491572 106.57588 24.334137 6600.0257 2.9872129e+09 0.11733900 0.025042619 106.62537 24.208163 6602.3188 2.8254033e+09 0.11690095 0.027244588 106.67486 24.082183 6604.6119 2.6793322e+09 0.11607988 0.026434620 106.72435 23.956189 6606.9051 2.5412429e+09 0.11540421 0.025877585 106.77350 23.830197 6609.1982 2.4125019e+09 0.11253897 0.023764808 106.81849 23.704222 6611.4913 2.2931535e+09 0.10999957 0.024645125 106.86349 23.578248 6613.7845 2.1869495e+09 0.10912460 0.023861418 106.91232 23.452273 6616.0776 2.0872274e+09 0.10767924 0.023294481 106.96181 23.326299 6618.3708 1.9903672e+09 0.10713991 0.024050760 107.00846 23.203170 6620.6639 1.8996823e+09 0.10639179 0.024981136 107.05345 23.081694 6622.9570 1.8097303e+09 0.10494824 0.024503263 107.10028 22.958375 6625.2502 1.7236979e+09 0.10343903 0.025696128 107.14977 22.832400 6627.5433 1.6442146e+09 0.10138820 0.025526680 107.19842 22.706425 6629.8364 1.5652518e+09 0.10002218 0.025957874 107.24341 22.580451 6632.1296 1.4900984e+09 0.098071982 0.026047883 107.28840 22.454477 6634.4227 1.4199473e+09 0.096382011 0.026357678 107.33773 22.332842 6636.7159 1.3465105e+09 0.094654788 0.026271758 107.38722 22.211366 6639.0090 1.2814816e+09 0.093235908 0.025624862 107.43338 22.086552 6641.3021 1.2199264e+09 0.093615200 0.025149326 107.47837 21.960577 6643.5953 1.1619902e+09 0.092491310 0.025282496 107.52336 21.834602 6645.8884 1.1104898e+09 0.091063987 0.025867868 107.56835 21.708628 6648.1815 1.0590241e+09 0.089825830 0.027085808 107.61334 21.583982 6650.4747 1.0123145e+09 0.089118755 0.026363904 107.65834 21.462489 6652.7678 9.6707308e+08 0.088835061 0.027461778 107.70367 21.340663 6655.0610 9.2461598e+08 0.087807649 0.027635402 107.75316 21.214688 6657.3541 8.8488685e+08 0.086029082 0.029311844 107.80265 21.088713 6659.6472 8.4425432e+08 0.084669419 0.031699586 107.84831 20.966569 6661.9404 8.0828164e+08 0.083262678 0.033013897 107.89330 20.845094 6664.2335 7.7273095e+08 0.082098097 0.031351717 107.93829 20.720789 6666.5266 7.4182644e+08 0.082088801 0.027011217 107.98328 20.594814 6668.8198 7.1266489e+08 0.080909493 0.028196218 108.02645 20.470667 6671.1129 6.8122557e+08 0.080936050 0.026866957 108.06694 20.349191 6673.4061 6.5186760e+08 0.080385768 0.028066496 108.10825 20.226890 6675.6992 6.2702721e+08 0.078225855 0.031137559 108.15324 20.100916 6677.9923 6.0577776e+08 0.076817949 0.030947524 108.19823 19.974941 6680.2855 5.8651622e+08 0.076923047 0.029503060 108.24323 19.853290 6682.5786 5.6500164e+08 0.077503375 0.030866615 108.28822 19.731815 6684.8717 5.3733501e+08 0.077392605 0.032698329 108.33796 19.597528 6687.1649 5.1348559e+08 0.075478766 0.034250948 108.38937 19.458695 6689.4580 4.8771095e+08 0.072752234 0.033603740 108.43569 19.330062 6691.7511 4.6609746e+08 0.071555352 0.032824041 108.48068 19.204087 6694.0443 4.4473059e+08 0.070358665 0.031198957 108.52311 19.080680 6696.3374 4.2433415e+08 0.070018415 0.029815978 108.56360 18.959205 6698.6306 4.0898360e+08 0.068725785 0.031083335 108.60566 18.837723 6700.9237 3.8956699e+08 0.066795398 0.031352851 108.65066 18.716230 6703.2168 3.7466882e+08 0.066469672 0.034217828 108.69509 18.594739 6705.5100 3.5974774e+08 0.066565411 0.037575236 108.73558 18.473264 6707.8031 3.4625698e+08 0.066194057 0.040071782 108.77607 18.351788 6710.0962 3.3558990e+08 0.064940005 0.040515334 108.82062 18.226249 6712.3894 3.2208096e+08 0.062657593 0.042552917 108.86561 18.100274 6714.6825 3.0840848e+08 0.060448283 0.047354721 108.91148 17.965552 6716.9757 2.9078850e+08 0.058312036 0.049838418 108.95776 17.826721 6719.2688 2.7641545e+08 0.056028496 0.051114461 108.99978 17.700655 6721.5619 2.6498246e+08 0.056212370 0.050473213 109.04027 17.579179 6723.8551 2.5742394e+08 0.054148083 0.049845832 109.08307 17.457704 6726.1482 2.5069288e+08 0.049878166 0.040952704 109.12807 17.336228 6728.4413 2.3940229e+08 0.048979660 0.040253633 109.17175 17.214753 6730.7345 2.3084815e+08 0.047042129 0.041385970 109.21224 17.093277 6733.0276 2.2276628e+08 0.045444357 0.044074271 109.25312 16.970630 6735.3208 2.1496167e+08 0.045510064 0.049633942 109.29940 16.831797 6737.6139 2.0269489e+08 0.046806200 0.056091147 109.34497 16.695094 6739.9070 1.9071529e+08 0.046528854 0.063936588 109.38546 16.573619 6742.2002 1.8320969e+08 0.043686636 0.069098505 109.42595 16.452144 6744.4933 1.7893980e+08 0.038861024 0.078174973 109.46644 16.330669 6746.7864 1.7818212e+08 0.034506617 0.069843970 109.50693 16.209193 6749.0796 1.7264636e+08 0.033244655 0.072256143 109.55483 16.075961 6751.3727 1.6400623e+08 0.029376185 0.073869259 109.60625 15.937129 6753.6659 1.5354654e+08 0.026777114 0.075132126 109.64966 15.811011 6755.9590 1.4714496e+08 0.024023535 0.074184887 109.69015 15.689535 6758.2521 1.4417907e+08 0.023293985 0.074238490 109.73065 15.568059 6760.5453 1.4066838e+08 0.023657178 0.077101075 109.77114 15.446584 6762.8384 1.3789410e+08 0.028448683 0.076698426 109.81182 15.320123 6765.1315 1.3054257e+08 0.030812790 0.079555207 109.85295 15.181291 6767.4247 1.2493545e+08 0.029558855 0.081500232 109.89387 15.049938 6769.7178 1.1987447e+08 0.024394964 0.086195287 109.93437 14.932944 6772.0110 1.1512460e+08 0.020089812 0.091757154 109.97556 14.813327 6774.3041 1.1033376e+08 0.015800971 0.097319020 110.02183 14.674495 6776.5972 1.0580539e+08 0.011537893 0.10288089 110.06710 14.538706 6778.8904 1.0063739e+08 0.0072490109 0.10844275 110.10759 14.417231 6781.1835 96468126. 0.0030262553 0.11400462 110.14808 14.295755 6783.4766 96053012. -0.00093846190 0.11956648 110.19408 14.157745 6785.7698 92645597. -0.0050900077 0.12512835 110.24036 14.018957 6788.0629 89483520. -0.0092255276 0.13069022 110.28664 13.885262 6790.3561 84433378. -0.013519742 0.13625208 110.33227 13.752342 6792.6492 79428018. -0.017856455 0.14181395 110.36826 13.630866 6794.9423 77918503. -0.021926757 0.14737582 110.40426 13.509391 6797.2355 77035876. -0.025982217 0.15293768 110.44889 13.373330 6799.5286 76500085. -0.030056082 0.15849955 110.49517 13.234498 6801.8217 73824791. -0.034419139 0.16406141 110.53684 13.100271 6804.1149 68327734. -0.039262847 0.16962328 110.57798 12.966581 6806.4080 64996864. -0.044138292 0.17518515 110.61850 12.844503 6808.7012 64397446. -0.048977002 0.18074701 110.65899 12.723027 6810.9943 64185876. -0.054239777 0.18630888 110.70370 12.592658 6813.2874 62505644. -0.060632330 0.19187075 110.74997 12.458968 6815.5806 56982931. -0.069964191 0.19743261 110.79222 12.321250 6817.8737 50613707. -0.086185870 0.20299448 110.83335 12.182418 6820.1668 48989627. -0.14986197 0.20855634 110.87880 12.047897 6822.4600 46750254. -0.10776647 0.21411821 110.92508 11.914207 6824.7531 46567168. -0.0012882046 0.21968008 110.96677 11.775922