# # 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 = 55.030309 km # Date (UTC) = 2013-11-19T10:11:24.675 # Date (julian) = 2456615.92459115 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6507.0930 4.8438015e+10 0.074298693 0.034422084 101.83337 30.986011 6508.6958 4.5555120e+10 0.081882546 0.034905396 101.87460 30.892816 6510.2985 4.3147285e+10 0.089744573 0.035388709 101.91548 30.801623 6511.9013 4.1177934e+10 0.097916447 0.035872021 101.95636 30.710429 6513.5041 3.9267645e+10 0.10627144 0.036355334 101.99874 30.610553 6515.1069 3.7290642e+10 0.11473894 0.036838646 102.04186 30.506329 6516.7096 3.5140752e+10 0.12326085 0.037321959 102.08499 30.402105 6518.3124 3.2942670e+10 0.13186704 0.037805271 102.12812 30.297882 6519.9152 3.0890825e+10 0.14062768 0.038288584 102.17124 30.193658 6521.5180 2.9065576e+10 0.14956310 0.038771896 102.21437 30.089434 6523.1207 2.7445886e+10 0.15553696 0.039209039 102.25750 29.985210 6524.7235 2.5923459e+10 0.16069051 0.039683994 102.30063 29.880986 6526.3263 2.4329114e+10 0.16363525 0.040010168 102.34261 29.776763 6527.9291 2.2711387e+10 0.16767574 0.041390986 102.38214 29.672539 6529.5318 2.1262004e+10 0.17065531 0.043082963 102.42168 29.568315 6531.1346 2.0071146e+10 0.17242974 0.045424617 102.46024 29.471081 6532.7374 1.9160379e+10 0.17554574 0.047300206 102.49798 29.379887 6534.3402 1.8420429e+10 0.17644644 0.048039715 102.53571 29.288693 6535.9429 1.7701167e+10 0.17567425 0.047815253 102.57537 29.192856 6537.5457 1.6894682e+10 0.17667747 0.048942507 102.61850 29.088633 6539.1485 1.6052235e+10 0.17564604 0.049823373 102.66162 28.984409 6540.7513 1.5210622e+10 0.17451279 0.051209020 102.70269 28.882248 6542.3540 1.4374290e+10 0.17303927 0.051136651 102.74222 28.781618 6543.9568 1.3611371e+10 0.17120787 0.051633014 102.78176 28.680987 6545.5596 1.2897381e+10 0.17002353 0.052460580 102.81738 28.587826 6547.1624 1.2315456e+10 0.16908861 0.053349109 102.85197 28.496632 6548.7651 1.1834525e+10 0.16733951 0.053896143 102.88656 28.405439 6550.3679 1.1329797e+10 0.16659844 0.055077482 102.92637 28.306279 6551.9707 1.0793851e+10 0.16559672 0.055576478 102.96949 28.202054 6553.5735 1.0186609e+10 0.16396867 0.055046795 103.01262 28.097830 6555.1762 9.5846772e+09 0.16298208 0.054705282 103.05277 27.993607 6556.7790 9.0161212e+09 0.16145257 0.053898596 103.09230 27.889383 6558.3818 8.5192397e+09 0.15983602 0.052913975 103.13160 27.785911 6559.9846 8.0983618e+09 0.15844002 0.052276052 103.16619 27.697862 6561.5873 7.7723725e+09 0.15615957 0.051083254 103.20079 27.609813 6563.1901 7.5132130e+09 0.15427000 0.049708452 103.23538 27.521763 6564.7929 7.2520376e+09 0.15256168 0.048412261 103.27425 27.419700 6566.3957 6.9730782e+09 0.15063069 0.046959060 103.31378 27.315476 6567.9984 6.6354632e+09 0.14945490 0.045772985 103.35332 27.211251 6569.6012 6.3025840e+09 0.14809344 0.044891554 103.39285 27.107028 6571.2040 5.9619917e+09 0.14670645 0.044447563 103.43238 27.002805 6572.8068 5.6624203e+09 0.14548959 0.043768145 103.47043 26.903457 6574.4095 5.4154085e+09 0.14386971 0.042658307 103.50502 26.815408 6576.0123 5.2182206e+09 0.14228717 0.041357226 103.53961 26.727358 6577.6151 5.0615513e+09 0.14093627 0.039254224 103.57480 26.637345 6579.2179 4.8697509e+09 0.13905434 0.036950731 103.61433 26.533121 6580.8206 4.6660535e+09 0.13762286 0.035762370 103.65387 26.428898 6582.4234 4.4576436e+09 0.13663431 0.035178574 103.69066 26.330157 6584.0262 4.2738100e+09 0.13511585 0.034501248 103.72210 26.242108 6585.6290 4.1442883e+09 0.13385075 0.033467936 103.75355 26.154058 6587.2317 4.0231822e+09 0.13267281 0.033209712 103.78628 26.063439 6588.8345 3.8902724e+09 0.13124644 0.033101244 103.82581 25.959215 6590.4373 3.7463658e+09 0.12971315 0.030248655 103.86535 25.854992 6592.0401 3.5832551e+09 0.12809022 0.028034620 103.90488 25.752121 6593.6428 3.4157656e+09 0.12651954 0.026504583 103.94441 25.651491 6595.2456 3.2630396e+09 0.12482412 0.025649041 103.98395 25.550861 6596.8484 3.1265370e+09 0.12296235 0.025723417 104.01868 25.455835 6598.4512 3.0178790e+09 0.12148338 0.025191768 104.05012 25.364641 6600.0539 2.9399397e+09 0.12100348 0.025100745 104.08157 25.273447 6601.6567 2.8519810e+09 0.12038388 0.027354960 104.11487 25.178347 6603.2595 2.7567269e+09 0.11924796 0.026509663 104.15081 25.077718 6604.8623 2.6535305e+09 0.11853903 0.026583254 104.18675 24.977088 6606.4650 2.5450179e+09 0.11769411 0.026668322 104.22184 24.882417 6608.0678 2.4704141e+09 0.11578420 0.023730579 104.25643 24.791223 6609.6706 2.4071946e+09 0.11350420 0.023905125 104.29102 24.700028 6611.2734 2.3457265e+09 0.11145048 0.024784138 104.32622 24.604575 6612.8761 2.2703844e+09 0.11098816 0.023666143 104.36216 24.503946 6614.4789 2.1824522e+09 0.11035225 0.023610548 104.39810 24.403316 6616.0817 2.1062093e+09 0.10932854 0.023295118 104.43104 24.311102 6617.6845 2.0435762e+09 0.10903864 0.023666177 104.46248 24.223053 6619.2872 1.9953791e+09 0.10848826 0.024595217 104.49393 24.135004 6620.8900 1.9438501e+09 0.10792915 0.025053999 104.52757 24.039047 6622.4928 1.8855688e+09 0.10697911 0.024626832 104.56351 23.934822 6624.0956 1.8137734e+09 0.10567237 0.024913457 104.59945 23.830598 6625.6983 1.7475573e+09 0.10508424 0.026230915 104.63222 23.737791 6627.3011 1.6897652e+09 0.10352285 0.025433120 104.66367 23.649729 6628.9039 1.6463762e+09 0.10266349 0.026070077 104.69512 23.561667 6630.5066 1.6045681e+09 0.10143347 0.025929550 104.72893 23.466993 6632.1094 1.5522117e+09 0.10022301 0.026045466 104.76486 23.366380 6633.7122 1.4983777e+09 0.099141616 0.026276595 104.80079 23.265767 6635.3150 1.4474004e+09 0.098107252 0.026447023 104.83340 23.174491 6636.9177 1.4071419e+09 0.096875009 0.026193354 104.86485 23.086428 6638.5205 1.3781412e+09 0.095887021 0.025648965 104.89630 22.998366 6640.1233 1.3459816e+09 0.095906723 0.025255566 104.93028 22.901183 6641.7261 1.3103994e+09 0.095783296 0.025150766 104.96622 22.796959 6643.3288 1.2702070e+09 0.095109869 0.025242270 105.00216 22.692735 6644.9316 1.2314219e+09 0.094391902 0.025444294 105.03459 22.601157 6646.5344 1.2025205e+09 0.093425468 0.026196768 105.06603 22.513108 6648.1372 1.1773665e+09 0.092689704 0.027056107 105.09748 22.425059 6649.7399 1.1494936e+09 0.092063313 0.026613709 105.12947 22.329438 6651.3427 1.1147271e+09 0.091683327 0.026746811 105.16181 22.228809 6652.9455 1.0798477e+09 0.091471247 0.027510665 105.19415 22.128180 6654.5483 1.0427938e+09 0.090639449 0.027802658 105.22945 22.027550 6656.1510 1.0060605e+09 0.089228662 0.028155989 105.26539 21.926920 6657.7538 9.6957817e+08 0.088213888 0.029775517 105.30116 21.826754 6659.3566 9.3427777e+08 0.087019378 0.031760213 105.33261 21.738705 6660.9594 9.1180196e+08 0.085901482 0.032498017 105.36405 21.650655 6662.5621 8.9466973e+08 0.084838475 0.032728876 105.39550 21.562606 6664.1649 8.6975212e+08 0.083732096 0.031602662 105.42771 21.463777 6665.7677 8.4134062e+08 0.083793363 0.027289239 105.46006 21.363147 6667.3705 8.0626379e+08 0.083339644 0.027239537 105.49234 21.263453 6668.9732 7.8034948e+08 0.082197294 0.028332024 105.52378 21.175404 6670.5760 7.6657784e+08 0.082155637 0.027061773 105.55523 21.087354 6672.1788 7.5288795e+08 0.081687077 0.026983230 105.58667 20.999305 6673.7816 7.3486317e+08 0.080896771 0.028628107 105.61892 20.900005 6675.3843 7.0928762e+08 0.079284643 0.030534510 105.65127 20.799375 6676.9871 6.8220018e+08 0.077591329 0.032349914 105.68317 20.700152 6678.5899 6.6231314e+08 0.077052483 0.030542070 105.71147 20.612103 6680.1927 6.4721368e+08 0.077464394 0.029483021 105.73977 20.524054 6681.7954 6.3391490e+08 0.077920133 0.030267607 105.76807 20.436006 6683.3982 6.2098617e+08 0.078165801 0.031772168 105.80349 20.336234 6685.0010 6.0557257e+08 0.077999071 0.032705882 105.83943 20.235604 6686.6038 5.8865214e+08 0.076824988 0.034112363 105.87483 20.134974 6688.2065 5.7054339e+08 0.074895606 0.033832866 105.90718 20.034344 6689.8093 5.4986097e+08 0.073422772 0.033287513 105.93952 19.933714 6691.4121 5.2951775e+08 0.072634131 0.032904037 105.97038 19.837699 6693.0149 5.1519267e+08 0.072011501 0.031598990 105.99868 19.749650 6694.6176 5.0271716e+08 0.071326426 0.030395376 106.02699 19.661601 6696.2204 4.9619370e+08 0.070962210 0.029767362 106.05605 19.571872 6697.8232 4.8571404e+08 0.070237095 0.030195441 106.08839 19.474836 6699.4260 4.6976800e+08 0.068994458 0.031197392 106.12073 19.377801 6701.0287 4.5420105e+08 0.067484853 0.031451610 106.15144 19.284398 6702.6315 4.3681784e+08 0.067057135 0.033380994 106.17975 19.196350 6704.2343 4.2798129e+08 0.067059699 0.036292600 106.20805 19.108301 6705.8371 4.1823801e+08 0.066924360 0.038156729 106.23726 19.017430 6707.4398 4.0943219e+08 0.066487883 0.040123820 106.26960 18.916800 6709.0426 4.0138502e+08 0.065793334 0.041105442 106.30195 18.816170 6710.6454 3.8701217e+08 0.064484518 0.040622821 106.33429 18.715540 6712.2482 3.7359174e+08 0.062797005 0.042290706 106.36664 18.614910 6713.8509 3.5807809e+08 0.061110733 0.046764266 106.39898 18.514279 6715.4537 3.4704925e+08 0.059812559 0.047842628 106.42866 18.424017 6717.0565 3.4146957e+08 0.058177074 0.049870775 106.45696 18.339113 6718.6593 3.3883577e+08 0.056390183 0.050839157 106.48526 18.254208 6720.2620 3.3354291e+08 0.056204569 0.050389405 106.51550 18.161766 6721.8648 3.2305540e+08 0.056245909 0.050564470 106.54785 18.061137 6723.4676 3.1236816e+08 0.054932954 0.049629722 106.58019 17.960508 6725.0704 3.0066764e+08 0.051365058 0.041532072 106.61254 17.859878 6726.6731 2.9316279e+08 0.050109134 0.040957438 106.64488 17.759248 6728.2759 2.8530249e+08 0.049894795 0.040019148 106.67723 17.658618 6729.8787 2.7684329e+08 0.048894655 0.040459765 106.70300 17.572367 6731.4815 2.6944652e+08 0.047671814 0.042708209 106.72816 17.487462 6733.0842 2.6617045e+08 0.046938327 0.044381613 106.75332 17.402557 6734.6870 2.6171847e+08 0.046865781 0.049312264 106.78375 17.306106 6736.2898 2.5600680e+08 0.048262438 0.051450533 106.81610 17.205476 6737.8926 2.4842269e+08 0.049289458 0.056978817 106.84844 17.104846 6739.4953 2.4136234e+08 0.049427619 0.063432739 106.88079 17.007637 6741.0981 2.3635522e+08 0.048464134 0.066038486 106.91313 16.910601 6742.7009 2.2544984e+08 0.046025468 0.070318572 106.94426 16.815087 6744.3037 2.1768900e+08 0.042825580 0.078028279 106.96942 16.727038 6745.9064 2.0941091e+08 0.042264354 0.078947941 106.99457 16.638988 6747.5092 2.0774857e+08 0.038061594 0.067185862 107.01973 16.550939 6749.1120 2.0311459e+08 0.037917653 0.072247274 107.05200 16.453999 6750.7148 1.9772008e+08 0.035540352 0.073224598 107.08434 16.356964 6752.3175 1.9299270e+08 0.033028209 0.073767040 107.11595 16.259185 6753.9203 1.8810172e+08 0.032277596 0.075955550 107.14470 16.158555 6755.5231 1.8606149e+08 0.030547607 0.074376010 107.17345 16.057926 6757.1259 1.7745895e+08 0.028794860 0.076358135 107.20373 15.958820 6758.7286 1.7438895e+08 0.029591763 0.075246096 107.23607 15.861784 6760.3314 1.7136742e+08 0.029866722 0.076693235 107.26842 15.764747 6761.9342 1.6650016e+08 0.033126725 0.078045406 107.29846 15.667711 6763.5369 1.6159922e+08 0.035520023 0.078073053 107.32721 15.570676 6765.1397 1.5256163e+08 0.037076240 0.079556700 107.35596 15.473640 6766.7425 1.4868910e+08 0.036854621 0.081393292 107.38780 15.373516 6768.3453 1.4455728e+08 0.033499417 0.082098399 107.42014 15.272886 6769.9480 1.3871874e+08 0.029860698 0.086753693 107.45193 15.173467 6771.5508 1.3272192e+08 0.026649812 0.090641126 107.47709 15.088562 6773.1536 1.2549034e+08 0.023407709 0.094528560 107.50225 15.003657 6774.7564 1.2654547e+08 0.020129409 0.098415993 107.52741 14.918753 6776.3591 1.2361931e+08 0.016844355 0.10230343 107.55579 14.822968 6777.9619 1.2144179e+08 0.013548196 0.10619086 107.58454 14.725932 6779.5647 1.1843236e+08 0.010226148 0.11007829 107.61370 14.628485 6781.1675 1.1177815e+08 0.0068120425 0.11396573 107.64605 14.527854 6782.7702 1.0743566e+08 0.0033741963 0.11785316 107.67839 14.427224 6784.3730 1.0339069e+08 -0.00015332886 0.12174059 107.70954 14.327786 6785.9758 95318902. -0.0040030039 0.12562803 107.73829 14.230751 6787.5786 91475766. -0.0080385842 0.12951546 107.76705 14.133715 6789.1813 83802522. -0.013040530 0.13340289 107.79580 14.036679 6790.7841 73707873. -0.021251698 0.13729033 107.82455 13.939644 6792.3869 66081902. -0.052860374 0.14117776 107.85330 13.842608 6793.9897 52506734. -0.039355207 0.14506519 107.88205 13.745572 6795.5924 52406362. 0.020240475 0.14895263 107.91081 13.648536