# # 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 = 58.872886 km # Date (UTC) = 2013-11-23T10:05:33.807 # Date (julian) = 2456619.92053017 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.0625 6.9834647e+10 0.043879093 0.032302067 103.42939 30.229048 6502.3292 6.3977049e+10 0.051989228 0.032985588 103.48721 30.100077 6504.5960 5.8394602e+10 0.060839273 0.033669109 103.54502 29.971107 6506.8627 5.3266907e+10 0.071690145 0.034352629 103.60574 29.829942 6509.1294 4.8799941e+10 0.076547565 0.035036150 103.66673 29.687627 6511.3961 4.4835699e+10 0.079241449 0.035719671 103.72051 29.557941 6513.6628 4.1338976e+10 0.093216519 0.036403192 103.77387 29.428971 6515.9295 3.8465730e+10 0.10742844 0.037086712 103.83034 29.300001 6518.1962 3.5851194e+10 0.12408691 0.037770233 103.88816 29.171031 6520.4629 3.3284522e+10 0.13953478 0.038453754 103.94740 29.036066 6522.7296 3.0772213e+10 0.14753570 0.039108318 104.00839 28.893751 6524.9964 2.8384983e+10 0.14783840 0.039780922 104.06572 28.757856 6527.2631 2.6158036e+10 0.14895634 0.040907462 104.11909 28.628867 6529.5298 2.4192886e+10 0.15467331 0.043079679 104.17247 28.500921 6531.7965 2.2469712e+10 0.16548696 0.046387983 104.22583 28.376398 6534.0632 2.0830848e+10 0.17438068 0.047962237 104.27920 28.251870 6536.3299 1.9265780e+10 0.17239336 0.048085684 104.33507 28.104821 6538.5966 1.7774574e+10 0.17011666 0.049447206 104.39093 27.957823 6540.8633 1.6402692e+10 0.16399800 0.051261965 104.44430 27.833300 6543.1300 1.5150507e+10 0.16567347 0.051416025 104.49767 27.708777 6545.3968 1.4066544e+10 0.16978283 0.052459122 104.55103 27.584255 6547.6635 1.3100905e+10 0.16783145 0.053539670 104.60440 27.459732 6549.9302 1.2183752e+10 0.16606006 0.054914208 104.65545 27.332895 6552.1969 1.1331019e+10 0.16271924 0.055537209 104.70437 27.203925 6554.4636 1.0573341e+10 0.15596974 0.054842109 104.75450 27.076163 6556.7303 9.8768464e+09 0.15739899 0.053905756 104.80787 26.951640 6558.9970 9.2291503e+09 0.15965805 0.052389716 104.86129 26.826705 6561.2637 8.6260788e+09 0.15806089 0.051242717 104.91720 26.684390 6563.5304 8.0651171e+09 0.15226761 0.049314761 104.97273 26.542818 6565.7972 7.5405019e+09 0.14476987 0.047413213 105.02165 26.413848 6568.0639 7.0516908e+09 0.14628664 0.045712951 105.07057 26.284878 6570.3306 6.6303837e+09 0.14697242 0.044780571 105.11949 26.159497 6572.5973 6.2516172e+09 0.14633257 0.043888102 105.16841 26.034974 6574.8640 5.8987891e+09 0.14425127 0.042440027 105.21981 25.910452 6577.1307 5.5687977e+09 0.14203887 0.040015052 105.27317 25.785929 6579.3974 5.2708664e+09 0.13727860 0.036852015 105.32516 25.661406 6581.6641 4.9830303e+09 0.13811913 0.035395499 105.37408 25.536883 6583.9308 4.6935712e+09 0.14040963 0.034550513 105.42343 25.411269 6586.1976 4.4063846e+09 0.13790677 0.033168742 105.47934 25.268953 6588.4643 4.1313927e+09 0.12924318 0.033224887 105.53417 25.127889 6590.7310 3.8671747e+09 0.12181285 0.029702329 105.57865 24.998900 6592.9977 3.6288732e+09 0.11958792 0.027104463 105.62313 24.869911 6595.2644 3.4301924e+09 0.11955456 0.025650990 105.67137 24.744699 6597.5311 3.2576160e+09 0.12017204 0.025555128 105.72029 24.620176 6599.7978 3.1020867e+09 0.11868018 0.024977715 105.76921 24.495653 6602.0645 2.9565707e+09 0.12070962 0.027461561 105.81813 24.371130 6604.3312 2.8237557e+09 0.11751417 0.026267960 105.86550 24.246608 6606.5980 2.6969230e+09 0.11662064 0.026429452 105.90997 24.122085 6608.8647 2.5835892e+09 0.11369249 0.023709510 105.95488 23.997561 6611.1314 2.4765903e+09 0.11313053 0.024874674 106.00380 23.873038 6613.3981 2.3633205e+09 0.11788419 0.023719651 106.05272 23.748515 6615.6648 2.2503412e+09 0.11468984 0.023271986 106.10759 23.608846 6617.9315 2.1346664e+09 0.11128730 0.023748090 106.16350 23.466532 6620.1982 2.0244025e+09 0.10305020 0.024831075 106.20930 23.339942 6622.4649 1.9212427e+09 0.10315515 0.024634242 106.25378 23.215418 6624.7316 1.8293536e+09 0.10710856 0.025253956 106.29825 23.090895 6626.9984 1.7475359e+09 0.10420790 0.025318902 106.34273 22.966372 6629.2651 1.6697577e+09 0.10353649 0.026061180 106.38892 22.843569 6631.5318 1.5978631e+09 0.098151697 0.025984784 106.43784 22.723494 6633.7985 1.5278739e+09 0.097238444 0.026291661 106.48614 22.602805 6636.0652 1.4644752e+09 0.096909182 0.026524432 106.53062 22.478282 6638.3319 1.4070470e+09 0.094799325 0.025657182 106.57509 22.353759 6640.5986 1.3521778e+09 0.094747370 0.025197409 106.61957 22.229219 6642.8653 1.2977976e+09 0.096598065 0.025187108 106.66404 22.104676 6645.1320 1.2430259e+09 0.096985296 0.025513543 106.71259 21.968737 6647.3988 1.1866908e+09 0.095691403 0.026647728 106.76342 21.826423 6649.6655 1.1310572e+09 0.091114031 0.026716372 106.80996 21.696097 6651.9322 1.0773241e+09 0.088620318 0.027198546 106.85444 21.571574 6654.1989 1.0273706e+09 0.088318648 0.027951496 106.89891 21.448942 6656.4656 9.8242163e+08 0.087702343 0.028432074 106.94338 21.328866 6658.7323 9.4329061e+08 0.085677254 0.031359851 106.98786 21.208005 6660.9990 9.0643851e+08 0.085833608 0.032534062 107.03233 21.083483 6663.2657 8.7285401e+08 0.083030535 0.032409571 107.07680 20.958961 6665.5324 8.4222299e+08 0.083111657 0.027674699 107.12127 20.834437 6667.7992 8.1067755e+08 0.086841759 0.027397002 107.16575 20.709913 6670.0659 7.7785868e+08 0.086310219 0.027298117 107.21108 20.576754 6672.3326 7.4338782e+08 0.087063493 0.027072368 107.25682 20.439522 6674.5993 7.1241882e+08 0.074847558 0.029460332 107.30166 20.311339 6676.8660 6.8187880e+08 0.072396357 0.032271857 107.34614 20.186817 6679.1327 6.5505223e+08 0.076089819 0.030158104 107.39061 20.062294 6681.3994 6.3125494e+08 0.081056793 0.029963790 107.43508 19.937771 6683.6661 6.0999486e+08 0.079304250 0.032164809 107.47860 19.814204 6685.9328 5.8842467e+08 0.076915312 0.033690153 107.51862 19.694127 6688.1996 5.6451191e+08 0.078429903 0.033831255 107.55865 19.574051 6690.4663 5.4156154e+08 0.074755089 0.033062429 107.60911 19.432487 6692.7330 5.1669756e+08 0.076799792 0.031914164 107.65989 19.290274 6694.9997 4.9427940e+08 0.064493295 0.029859908 107.69998 19.170070 6697.2664 4.7287897e+08 0.065359833 0.030124979 107.74000 19.049995 6699.5331 4.5492939e+08 0.065706725 0.031098522 107.78337 18.929905 6701.7998 4.3976265e+08 0.064459885 0.032583014 107.82785 18.809812 6704.0665 4.2562001e+08 0.071751961 0.036210225 107.87009 18.687495 6706.3332 4.1296366e+08 0.065921983 0.039026392 107.91012 18.562972 6708.6000 3.9657487e+08 0.073667476 0.040696910 107.95159 18.435228 6710.8667 3.8021639e+08 0.068698738 0.040666134 107.99733 18.297996 6713.1334 3.6409625e+08 0.059482854 0.044169027 108.04271 18.164398 6715.4001 3.4969969e+08 0.051943786 0.047787789 108.08719 18.039875 6717.6668 3.3715521e+08 0.051288424 0.049833024 108.13149 17.915518 6719.9335 3.2766418e+08 0.054681724 0.050482935 108.17152 17.795442 6722.2002 3.1832862e+08 0.064469733 0.050357676 108.21155 17.675366 6724.4669 3.0754448e+08 0.060393149 0.046027460 108.25608 17.541758 6726.7336 2.9486704e+08 0.054638784 0.040957984 108.30182 17.404526 6729.0004 2.8235810e+08 0.045123589 0.041045190 108.34287 17.281385 6731.2671 2.7061675e+08 0.036808171 0.042281539 108.38290 17.161310 6733.5338 2.5913987e+08 0.047273459 0.046822347 108.42620 17.028498 6735.8005 2.5045091e+08 0.046324255 0.050143211 108.47194 16.886182 6738.0672 2.4205978e+08 0.049628413 0.057691062 108.51422 16.757326 6740.3339 2.3331910e+08 0.048636627 0.064620793 108.55425 16.637250 6742.6006 2.2422522e+08 0.044554015 0.070074282 108.59632 16.511056 6744.8673 2.1535177e+08 0.043021042 0.078464273 108.64206 16.373825 6747.1340 2.0835944e+08 0.025927510 0.067315015 108.68558 16.243270 6749.4008 2.0042342e+08 0.036023162 0.072168206 108.72560 16.123194 6751.6675 1.9287037e+08 0.037808718 0.073993880 108.76643 16.000707 6753.9342 1.8546829e+08 0.034182588 0.076000461 108.81218 15.863474 6756.2009 1.7836986e+08 0.024781973 0.074683827 108.85693 15.729212 6758.4676 1.7284352e+08 0.0098937124 0.074694126 108.89696 15.609136 6760.7343 1.6592655e+08 0.036836821 0.077461569 108.93698 15.489059 6763.0010 1.6103642e+08 0.036793360 0.076440878 108.97759 15.353122 6765.2677 1.5667127e+08 0.035073819 0.079580069 109.01825 15.215890 6767.5344 1.5208241e+08 0.032343063 0.081377326 109.05831 15.095078 6769.8012 1.4465215e+08 0.043882562 0.086397416 109.09833 14.975002 6772.0679 1.3955313e+08 0.023893219 0.091895187 109.14241 14.842772 6774.3346 1.3361087e+08 0.028014322 0.097392958 109.18815 14.705540 6776.6013 1.2899143e+08 -0.0042766852 0.10289073 109.22636 14.581020 6778.8680 1.2453118e+08 0.014315553 0.10838850 109.26194 14.460944 6781.1347 1.2059022e+08 0.033283786 0.11388627 109.30253 14.332419 6783.4014 1.1757567e+08 -0.0013771590 0.11938404 109.34827 14.195188 6785.6681 1.1251527e+08 0.020718858 0.12488181 109.39402 14.057956 6787.9348 1.0853666e+08 -0.0067894200 0.13037958 109.43976 13.920723 6790.2016 1.0222457e+08 0.0074704524 0.13587735 109.48267 13.786325 6792.4683 99418796. -0.021118804 0.14137513 109.52333 13.654176 6794.7350 95205737. -0.0044411340 0.14687290 109.56362 13.529151 6797.0017 91511761. -0.013777648 0.15237067 109.60364 13.409075 6799.2684 88914152. -0.012878961 0.15786844 109.64388 13.283141 6801.5351 87550473. -0.027370778 0.16336621 109.68454 13.145909 6803.8018 84960508. -0.025081403 0.16886398 109.72711 13.008677 6806.0685 80706627. 0.015035889 0.17436175 109.77285 12.871444 6808.3352 77867418. -0.025187161 0.17985952 109.81653 12.736277 6810.6020 73611567. -0.041177982 0.18535729 109.85719 12.604128 6812.8687 69125587. -0.045739919 0.19085506 109.89785 12.469747 6815.1354 65894598. -0.045497884 0.19635283 109.93851 12.332515 6817.4021 63005046. -0.020199622 0.20185061 109.98157 12.195283 6819.6688 60276658. -0.041630030 0.20734838 110.02732 12.058051 6821.9355 57482474. -0.051315322 0.21284615 110.07050 11.923381 6824.2022 54590490. -0.039877273 0.21834392 110.11116 11.791231 6826.4689 52312073. -0.069185196 0.22384169 110.15182 11.656354 6828.7356 50412355. -0.054376674 0.22933946 110.19248 11.519121 6831.0024 49531963. -0.059757459 0.23483723 110.23314 11.384781 6833.2691 49786678. -0.090722734 0.24033500 110.27381 11.252632 6835.5358 48107512. -0.0055265424 0.24583277 110.31753 11.117424 6837.8025 46375151. -0.030612940 0.25133054 110.36327 10.980192 6840.0692 43668660. -0.047495074 0.25682832 110.40579 10.846184 6842.3359 38022573. 0.024032506 0.26232609 110.44645 10.714035 6844.6026 39757317. -0.16029417 0.26782386 110.48711 10.578496 6846.8693 40818065. -0.11214782 0.27332163 110.52777 10.441264 6853.6695 42414035. -0.11555414 0.28981494 110.64976 10.039566