# # 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 = 60.001159 km # Date (UTC) = 2014-11-30T09:22:37.291 # Date (julian) = 2456991.89070938 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6494.6110 1.2475969e+11 0.032667536 0.030658176 115.09410 27.795481 6496.9583 1.0497855e+11 0.040554217 0.031366002 115.15058 27.665307 6499.3056 8.9641138e+10 0.048077096 0.032073829 115.20585 27.536355 6501.6530 7.8595971e+10 0.055405563 0.032781655 115.25766 27.415463 6504.0003 7.0645233e+10 0.062807370 0.033489481 115.30679 27.300828 6506.3476 6.4777856e+10 0.070574062 0.034197308 115.35721 27.184467 6508.6949 5.9085551e+10 0.078737698 0.034905134 115.41708 27.055516 6511.0422 5.3515793e+10 0.087378086 0.035612960 115.47696 26.926565 6513.3895 4.8159519e+10 0.096594076 0.036320787 115.53245 26.797614 6515.7368 4.3528994e+10 0.10661793 0.037028613 115.58771 26.668663 6518.0842 3.9699802e+10 0.11768940 0.037736439 115.63820 26.550857 6520.4315 3.6454274e+10 0.12984193 0.038444266 115.68733 26.436236 6522.7788 3.3505837e+10 0.14082694 0.039121185 115.73851 26.316816 6525.1261 3.0608021e+10 0.14858244 0.039767823 115.79377 26.187865 6527.4734 2.7756501e+10 0.15487023 0.041060175 115.84903 26.058914 6529.8207 2.5009258e+10 0.16101601 0.043543132 115.90430 25.929963 6532.1680 2.2555043e+10 0.16651340 0.046824573 115.95955 25.801037 6534.5154 2.0541884e+10 0.17032773 0.048088722 116.00874 25.686278 6536.8627 1.8857870e+10 0.17262679 0.048562354 116.05786 25.571658 6539.2100 1.7351893e+10 0.17332500 0.049897809 116.10783 25.449155 6541.5573 1.5883559e+10 0.17212152 0.051145802 116.15850 25.320184 6543.9046 1.4487663e+10 0.16960240 0.051619313 116.20858 25.196641 6546.2519 1.3330074e+10 0.16727026 0.052671821 116.25771 25.082020 6548.5992 1.2357252e+10 0.16549613 0.053846600 116.30683 24.967399 6550.9466 1.1457959e+10 0.16358010 0.055222369 116.36170 24.843682 6553.2939 1.0542670e+10 0.16215387 0.055187343 116.41696 24.719336 6555.6412 9.6303404e+09 0.16009222 0.054314618 116.46871 24.591472 6557.9885 8.8092477e+09 0.15832870 0.053246515 116.51937 24.462521 6560.3358 8.1154768e+09 0.15596852 0.051971533 116.56669 24.342063 6562.6831 7.5692559e+09 0.15358866 0.050229885 116.61172 24.227442 6565.0304 7.1046186e+09 0.15156042 0.048283834 116.65828 24.110673 6567.3778 6.6555683e+09 0.14975195 0.046297788 116.71355 23.981723 6569.7251 6.2043719e+09 0.14843702 0.044899615 116.76881 23.852772 6572.0724 5.8062277e+09 0.14709561 0.044188705 116.81406 23.741835 6574.4197 5.4742292e+09 0.14499050 0.042653427 116.85910 23.631292 6576.7670 5.1899853e+09 0.14286483 0.040488550 116.90715 23.510883 6579.1143 4.8913177e+09 0.14002926 0.037007649 116.95781 23.381931 6581.4616 4.5747467e+09 0.13780984 0.035456819 117.00847 23.252981 6583.8090 4.2699513e+09 0.13560677 0.034612212 117.05913 23.124030 6586.1563 3.9949857e+09 0.13321878 0.033169276 117.10870 22.998640 6588.5036 3.7803556e+09 0.13113175 0.033211759 117.15373 22.888113 6590.8509 3.5996364e+09 0.12829584 0.029479272 117.19876 22.777585 6593.1982 3.4252703e+09 0.12610550 0.026917948 117.24802 22.653232 6595.5455 3.2328458e+09 0.12378824 0.025680143 117.29867 22.524281 6597.8928 3.0409116e+09 0.12211232 0.025440982 117.34608 22.405990 6600.2401 2.8915252e+09 0.12177363 0.025483578 117.39111 22.295448 6602.5875 2.7653352e+09 0.12135169 0.027015316 117.43692 22.182392 6604.9348 2.6440035e+09 0.12074317 0.026626316 117.48758 22.053441 6607.2821 2.5130780e+09 0.11963677 0.025149971 117.53824 21.924490 6609.6294 2.3700703e+09 0.11687557 0.023892895 117.58445 21.799984 6611.9767 2.2364983e+09 0.11464624 0.024335597 117.63050 21.675638 6614.3240 2.1225284e+09 0.11390889 0.023717246 117.67574 21.559013 6616.6713 2.0311233e+09 0.11254628 0.023387667 117.72077 21.444392 6619.0187 1.9517320e+09 0.11184988 0.024530417 117.76778 21.326358 6621.3660 1.8714874e+09 0.11096857 0.024968142 117.81844 21.202012 6623.7133 1.7763218e+09 0.10920114 0.024756088 117.86827 21.077667 6626.0606 1.6763696e+09 0.10800775 0.026513689 117.91433 20.953321 6628.4079 1.5919416e+09 0.10620323 0.025868714 117.96037 20.829056 6630.7552 1.5208042e+09 0.10435512 0.025930163 118.00540 20.714434 6633.1025 1.4664887e+09 0.10257746 0.026170157 118.05043 20.599813 6635.4499 1.4152665e+09 0.10057678 0.026467251 118.09604 20.479684 6637.7972 1.3544624e+09 0.098931211 0.025770980 118.14210 20.355321 6640.1445 1.2936303e+09 0.098432439 0.025252974 118.18816 20.230964 6642.4918 1.2242061e+09 0.098248862 0.025171822 118.23421 20.106618 6644.8391 1.1648864e+09 0.097235469 0.025434296 118.28004 19.984440 6647.1864 1.1138379e+09 0.096146382 0.026535936 118.32507 19.869819 6649.5337 1.0697784e+09 0.095272606 0.026897948 118.37010 19.755198 6651.8811 1.0319328e+09 0.094873006 0.027159369 118.41593 19.632990 6654.2284 9.8661492e+08 0.094222910 0.027938937 118.46199 19.508644 6656.5757 9.4117922e+08 0.092396487 0.028528694 118.50804 19.384299 6658.9230 8.9382685e+08 0.090835510 0.031698038 118.55409 19.259955 6661.2703 8.5558309e+08 0.089466774 0.032672626 118.59791 19.141654 6663.6176 8.2209588e+08 0.088038989 0.032312053 118.63884 19.031126 6665.9649 7.9402643e+08 0.087777542 0.026966038 118.67979 18.920560 6668.3123 7.6924914e+08 0.086707331 0.027747099 118.72581 18.796308 6670.6596 7.3850283e+08 0.086246618 0.027023064 118.77187 18.671944 6673.0069 7.0553579e+08 0.085799936 0.027469513 118.81793 18.547595 6675.3542 6.7673223e+08 0.083777029 0.030476777 118.86398 18.423250 6677.7015 6.4706543e+08 0.081939963 0.031360945 118.91003 18.298905 6680.0488 6.1854610e+08 0.081941660 0.029451960 118.95609 18.174560 6682.3961 5.9034838e+08 0.082552315 0.030727209 118.99969 18.056859 6684.7435 5.6604895e+08 0.082375014 0.032691819 119.04062 17.946331 6687.0908 5.5152343e+08 0.080317549 0.034292277 119.08175 17.835279 6689.4381 5.3513668e+08 0.077283253 0.033621680 119.12780 17.710933 6691.7854 5.1666727e+08 0.075921127 0.032815961 119.17386 17.586587 6694.1327 4.9318821e+08 0.074753075 0.031075026 119.21592 17.462241 6696.4800 4.7387995e+08 0.074402840 0.029875226 119.25737 17.337895 6698.8273 4.5659858e+08 0.073115321 0.031353434 119.30202 17.213551 6701.1747 4.4200781e+08 0.071138469 0.031665711 119.34807 17.089206 6703.5220 4.2699087e+08 0.070944111 0.034981362 119.39413 16.964861 6705.8693 4.0965114e+08 0.070945484 0.038214012 119.44018 16.840515 6708.2166 3.8882376e+08 0.070542686 0.040279442 119.48461 16.716163 6710.5639 3.6858031e+08 0.069017878 0.040606873 119.52607 16.591798 6712.9112 3.5448783e+08 0.066734322 0.043521795 119.56835 16.468272 6715.2585 3.4110557e+08 0.064447197 0.047643013 119.61441 16.348532 6717.6059 3.3194768e+08 0.062013455 0.049836794 119.66042 16.228746 6719.9532 3.2056283e+08 0.060364082 0.050464263 119.70187 16.104401 6722.3005 3.0780550e+08 0.060041925 0.050233734 119.74332 15.980056 6724.6478 2.9734713e+08 0.056209271 0.044517174 119.78863 15.855710 6726.9951 2.8525373e+08 0.053387260 0.040960342 119.83468 15.731365 6729.3424 2.7266547e+08 0.052599222 0.040817195 119.87766 15.610093 6731.6897 2.6321511e+08 0.050357908 0.043122725 119.91911 15.490353 6734.0370 2.5412206e+08 0.048853650 0.049351370 119.96284 15.368329 6736.3844 2.4741540e+08 0.050365951 0.051808114 120.00890 15.243983 6738.7317 2.3790244e+08 0.051058277 0.061349311 120.05345 15.119637 6741.0790 2.2494037e+08 0.049577190 0.065983978 120.09490 14.995292 6743.4263 2.1247728e+08 0.044926227 0.073923284 120.13635 14.871652 6745.7736 2.0527836e+08 0.042269129 0.078892110 120.17780 14.751912 6748.1209 1.9837595e+08 0.037807823 0.067653134 120.21925 14.632172 6750.4682 1.9501465e+08 0.034770724 0.072803683 120.26070 14.507892 6752.8156 1.8712452e+08 0.031702713 0.073190719 120.30216 14.383528 6755.1629 1.8099447e+08 0.029493211 0.074533935 120.34734 14.262913 6757.5102 1.7472044e+08 0.027177092 0.075191767 120.39340 14.143174 6759.8575 1.6555576e+08 0.027779435 0.076026884 120.43651 14.020488 6762.2048 1.6487764e+08 0.031519835 0.077720457 120.47795 13.896142 6764.5521 1.5745005e+08 0.034346732 0.079509737 120.52217 13.765944 6766.8994 1.5277651e+08 0.034526295 0.081748310 120.56954 13.629095 6769.2468 1.4527382e+08 0.029167386 0.085052761 120.61355 13.499351 6771.5941 1.3617637e+08 0.024598318 0.090746030 120.65500 13.375005 6773.9414 1.3308432e+08 0.020187452 0.096439298 120.69645 13.252488 6776.2887 1.2861944e+08 0.015764355 0.10213257 120.73789 13.132748 6778.6360 1.2494697e+08 0.011390962 0.10782584 120.77934 13.013007 6780.9833 1.2182066e+08 0.0070630361 0.11351910 120.82079 12.893267 6783.3306 1.1652417e+08 0.0026869427 0.11921237 120.86256 12.772316 6785.6780 1.0939416e+08 -0.0017413238 0.12490564 120.90993 12.630205 6788.0253 1.0216067e+08 -0.0061697242 0.13059891 120.95639 12.491542 6790.3726 95382408. -0.010576746 0.13629218 120.99784 12.371802 6792.7199 97260114. -0.014526966 0.14198545 121.03929 12.252062 6795.0672 98558494. -0.018490711 0.14767872 121.07621 12.132322 6797.4145 1.0023639e+08 -0.022420879 0.15337198 121.11305 12.012582 6799.7618 96892820. -0.026557081 0.15906525 121.15844 11.878959 6802.1092 90832278. -0.030818555 0.16475852 121.20581 11.742111 6804.4565 87391424. -0.034955860 0.17045179 121.24778 11.616658 6806.8038 83567880. -0.039148756 0.17614506 121.28923 11.492313 6809.1511 81729095. -0.043271405 0.18183833 121.33506 11.358713 6811.4984 76745062. -0.047650315 0.18753160 121.38243 11.221864 6813.8457 73411080. -0.052027994 0.19322486 121.42980 11.085016 6816.1930 67053208. -0.056798439 0.19891813 121.47718 10.948167 6818.5404 63134118. -0.061620878 0.20461140 121.51465 10.827406 6820.8877 61205925. -0.066559000 0.21030467 121.55149 10.707667 6823.2350 58401291. -0.072096101 0.21599794 121.59642 10.574771 6825.5823 57316053. -0.078181462 0.22169121 121.64380 10.437922 6827.9296 52567037. -0.086671621 0.22738447 121.68660 10.301073 6830.2769 48626754. -0.10032395 0.23307774 121.72870 10.164223 6832.6242 47964205. -0.15290901 0.23877101 121.77017 10.043955 6834.9716 46509010. -0.11862615 0.24446428 121.81162 9.9242151 6837.3189 47103098. -0.034903055 0.25015755 121.85779 9.7908268