# # 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 = 51.111789 km # Date (UTC) = 2013-01-27T10:57:54.818 # Date (julian) = 2456319.95688447 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6507.2736 6.3400831e+10 0.078960093 0.034476556 82.982439 53.443765 6509.3870 5.8735494e+10 0.089157444 0.035113836 83.161115 53.258460 6511.5004 5.3544069e+10 0.099372882 0.035751116 83.333621 53.079319 6513.6137 4.9178496e+10 0.10991671 0.036388396 83.502430 52.900179 6515.7271 4.5204150e+10 0.12071173 0.037025677 83.668298 52.720710 6517.8405 4.1367659e+10 0.13168264 0.037662957 83.834130 52.534979 6519.9538 3.7682589e+10 0.14279163 0.038300237 83.999982 52.352824 6522.0672 3.4427325e+10 0.15395712 0.038934850 84.164877 52.174737 6524.1806 3.1907197e+10 0.15970201 0.039491110 84.303097 52.025459 6526.2939 2.9820376e+10 0.16452515 0.039976252 84.446077 51.867914 6528.4073 2.7864806e+10 0.16934573 0.041765603 84.605311 51.682140 6530.5207 2.5628827e+10 0.17290835 0.044557635 84.764518 51.501168 6532.6340 2.3496653e+10 0.17613025 0.047213869 84.916931 51.327215 6534.7474 2.1788841e+10 0.17757237 0.048153638 85.044095 51.172410 6536.8608 2.0392483e+10 0.17783768 0.048560662 85.181510 51.005121 6538.9741 1.9039338e+10 0.17755624 0.049631039 85.334108 50.819344 6541.0875 1.7508582e+10 0.17668945 0.051298148 85.486678 50.639551 6543.2009 1.6068026e+10 0.17504234 0.051434615 85.629380 50.469886 6545.3142 1.4879723e+10 0.17298352 0.052458382 85.756539 50.315081 6547.4276 1.3817430e+10 0.17061547 0.053449979 85.894599 50.146171 6549.5410 1.2874756e+10 0.16818705 0.054517584 86.038804 49.968792 6551.6543 1.1999635e+10 0.16613413 0.055465438 86.160439 49.813986 6553.7677 1.1163219e+10 0.16375310 0.054949146 86.288489 49.651014 6555.8811 1.0405124e+10 0.16137950 0.054113044 86.434456 49.465238 6557.9945 9.6946450e+09 0.15941334 0.053242783 86.557815 49.307096 6560.1078 8.9990389e+09 0.15689115 0.052177097 86.673895 49.157851 6562.2212 8.3824741e+09 0.15404183 0.050669437 86.812003 48.973995 6564.3346 7.7996088e+09 0.15117339 0.048619978 86.941109 48.801852 6566.4479 7.2695822e+09 0.14894904 0.046929497 87.057214 48.647046 6568.5613 6.8743995e+09 0.14691079 0.045255706 87.169828 48.492241 6570.6747 6.5304978e+09 0.14506051 0.044638045 87.280407 48.337436 6572.7880 6.1453990e+09 0.14306804 0.043778876 87.409155 48.162643 6574.9014 5.7418299e+09 0.14075872 0.042422071 87.534855 47.991202 6577.0148 5.3653168e+09 0.13810467 0.040197195 87.645430 47.836394 6579.1281 5.0664629e+09 0.13478550 0.037000063 87.756006 47.681588 6581.2415 4.8268516e+09 0.13188064 0.035523483 87.866584 47.526782 6583.3549 4.5533761e+09 0.12936204 0.034842054 87.992595 47.350367 6585.4682 4.2664581e+09 0.12667562 0.033596439 88.120020 47.170495 6587.5816 3.9898048e+09 0.12422280 0.033287228 88.225069 47.015687 6589.6950 3.7619654e+09 0.12127460 0.031667242 88.330109 46.863003 6591.8083 3.5680016e+09 0.11782471 0.028289809 88.435137 46.713758 6593.9217 3.3865702e+09 0.11477280 0.026245326 88.537008 46.561326 6596.0351 3.2154689e+09 0.11167940 0.025727114 88.636527 46.406519 6598.1484 3.0659767e+09 0.10980613 0.025336301 88.740268 46.251713 6600.2618 2.9177638e+09 0.10926150 0.025528076 88.845312 46.096907 6602.3752 2.7392774e+09 0.10874384 0.027196485 88.964097 45.912514 6604.4885 2.5572487e+09 0.10780342 0.026361349 89.074601 45.740619 6606.6019 2.3875826e+09 0.10724727 0.026422375 89.174120 45.585812 6608.7153 2.2560289e+09 0.10461551 0.023713460 89.273626 45.431025 6610.8286 2.1424747e+09 0.10173504 0.024794716 89.373124 45.276250 6612.9420 2.0349748e+09 0.10061268 0.023616927 89.472639 45.126040 6615.0554 1.9354632e+09 0.099420208 0.023253235 89.572038 44.976643 6617.1687 1.8411846e+09 0.098090109 0.023495192 89.666026 44.821837 6619.2821 1.7563089e+09 0.097335681 0.024593980 89.760015 44.667031 6621.3955 1.6746033e+09 0.096328690 0.024958367 89.854008 44.512224 6623.5088 1.5945675e+09 0.094572007 0.024680341 89.947999 44.357417 6625.6222 1.5200434e+09 0.093228273 0.026140077 90.041988 44.202611 6627.7356 1.4504030e+09 0.091259419 0.025600949 90.135976 44.047806 6629.8489 1.3818420e+09 0.089842661 0.025955615 90.229965 43.893000 6631.9623 1.3223279e+09 0.087875378 0.026028516 90.319591 43.738219 6634.0757 1.2648054e+09 0.086174741 0.026332362 90.408036 43.583445 6636.1890 1.2121155e+09 0.084427792 0.026476342 90.501901 43.428638 6638.3024 1.1591936e+09 0.083201333 0.025658467 90.594955 43.273831 6640.4158 1.1065876e+09 0.083270109 0.025219782 90.683414 43.119024 6642.5291 1.0551858e+09 0.083252516 0.025173350 90.771874 42.966210 6644.6425 1.0041302e+09 0.082541311 0.025413047 90.860337 42.816932 6646.7559 9.5883259e+08 0.081705286 0.026311412 90.948797 42.664606 6648.8692 9.1148546e+08 0.080806721 0.027546156 91.037256 42.509800 6650.9826 8.6957638e+08 0.080661257 0.026480184 91.125717 42.354993 6653.0960 8.3208928e+08 0.080488287 0.027574663 91.214180 42.200186 6655.2093 7.9195982e+08 0.079397306 0.027696717 91.297476 42.045380 6657.3227 7.5634694e+08 0.077800101 0.029275443 91.380406 41.890579 6659.4361 7.2368887e+08 0.076484712 0.031743633 91.463318 41.735804 6661.5494 6.9481842e+08 0.075232755 0.032814793 91.546237 41.581019 6663.6628 6.6734001e+08 0.074042142 0.032299532 91.629170 41.426210 6665.7762 6.3479029e+08 0.074056117 0.027275336 91.712103 41.274211 6667.8895 6.0762057e+08 0.073485686 0.027430203 91.795036 41.124936 6670.0029 5.7766904e+08 0.072990724 0.027327284 91.877969 40.971793 6672.1163 5.5362692e+08 0.072756514 0.026946997 91.960901 40.816986 6674.2296 5.3113801e+08 0.071859100 0.029148513 92.043834 40.662180 6676.3430 5.0589873e+08 0.069697140 0.031934794 92.126315 40.507375 6678.4564 4.8612806e+08 0.068844495 0.030631367 92.203718 40.352570 6680.5697 4.6167687e+08 0.069494032 0.029564449 92.282625 40.197772 6682.6831 4.3904934e+08 0.070174864 0.030946469 92.365541 40.042996 6684.7965 4.2143934e+08 0.070122630 0.032694510 92.445901 39.888205 6686.9098 4.0322753e+08 0.068695316 0.034290449 92.523304 39.733399 6689.0232 3.8709710e+08 0.066040651 0.033995125 92.600707 39.582214 6691.1366 3.7011249e+08 0.065402529 0.032969038 92.678109 39.432936 6693.2500 3.5134568e+08 0.064831360 0.031518340 92.755512 39.278980 6695.3633 3.3407780e+08 0.064632960 0.029792737 92.832499 39.125007 6697.4767 3.2000882e+08 0.064202816 0.030151591 92.898842 38.992319 6699.5901 3.0971691e+08 0.062946803 0.031045982 92.965185 38.859631 6701.7034 3.0153242e+08 0.061331061 0.032441563 93.036656 38.706431 6703.8168 2.8963249e+08 0.061654838 0.035719096 93.109184 38.552285 6705.9302 2.8011514e+08 0.061788722 0.038322233 93.186571 38.403038 6708.0435 2.6532637e+08 0.061628048 0.040090971 93.262252 38.252069 6710.1569 2.5541337e+08 0.060509249 0.040527204 93.334130 38.097262 6712.2703 2.4421229e+08 0.058535804 0.042331734 93.406005 37.942456 6714.3836 2.3111536e+08 0.056613263 0.047332249 93.477878 37.787651 6716.4970 2.2371493e+08 0.054838483 0.049133381 93.549750 37.632844 6718.6104 2.1343180e+08 0.052662796 0.050763000 93.621623 37.478037 6720.7237 2.0494453e+08 0.052591983 0.050335910 93.693499 37.328115 6722.8371 1.9387302e+08 0.051880170 0.049570341 93.765376 37.178424 6724.9505 1.8569768e+08 0.047781095 0.041989718 93.837249 37.023619 6727.0638 1.8075479e+08 0.045992683 0.040875351 93.909121 36.868813 6729.1772 1.7649406e+08 0.045495636 0.040927323 93.980994 36.714008 6731.2906 1.6740368e+08 0.043656492 0.042328294 94.050334 36.561744 6733.4039 1.5801612e+08 0.042464710 0.046117349 94.116668 36.412495 6735.5173 1.5086141e+08 0.043195445 0.049842579 94.186593 36.259644 6737.6307 1.4706341e+08 0.044544434 0.056144556 94.258466 36.104838 6739.7440 1.4163334e+08 0.044575021 0.063737102 94.317740 35.968602 6741.8574 1.3663643e+08 0.042532263 0.068204037 94.374607 35.835913 6743.9708 1.3220110e+08 0.037747377 0.077596186 94.438388 35.691126 6746.0841 1.2936268e+08 0.036257579 0.078009160 94.504735 35.541849 6748.1975 1.2699132e+08 0.032383742 0.068055945 94.571079 35.387482 6750.3109 1.2073774e+08 0.029485414 0.072534947 94.637422 35.233295 6752.4242 1.1809149e+08 0.026577670 0.073643560 94.703769 35.084018 6754.5376 1.1212454e+08 0.024974476 0.075348943 94.770112 34.933073 6756.6510 1.0741756e+08 0.022124031 0.075841943 94.836446 34.778298 6758.7643 1.0340874e+08 0.022390409 0.075321608 94.902784 34.623506 6760.8777 97705017. 0.022443969 0.077735007 94.969127 34.468699 6762.9911 99220530. 0.027519959 0.076452171 95.035473 34.317683 6765.1044 1.0068648e+08 0.029811381 0.079550258 95.101820 34.168408 6767.2178 1.0255445e+08 0.029148480 0.081731883 95.163319 34.014282 6769.3312 1.0350993e+08 0.024352868 0.085257494 95.224511 33.859851 6771.4445 97274958. 0.020116669 0.090383339 95.290854 33.710573 6773.5579 89529742. 0.015704330 0.095509183 95.355764 33.559863 6775.6713 81183628. 0.011072479 0.10063503 95.416581 33.405057 6777.7846 75422811. 0.0064075910 0.10576087 95.477398 33.252743 6779.8980 72720859. 0.0018057314 0.11088672 95.538215 33.103465 6782.0114 72309981. -0.0028214636 0.11601256 95.599025 32.950659 6784.1247 69800860. -0.0082493085 0.12113841 95.659830 32.795883 6786.2381 66851943. -0.014933952 0.12626425 95.720645 32.645686 6788.3515 60934628. -0.026055608 0.13139010 95.781462 32.496275 6790.4648 55554940. -0.071480176 0.13651594 95.842279 32.341470 6792.5782 50610314. -0.045059303 0.14164178 95.903096 32.187855 6794.6916 48462214. 0.032306116 0.14676763 95.963913 32.038578