# # 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 = 51.756509 km # Date (UTC) = 2013-12-28T09:57:26.070 # Date (julian) = 2456654.91488507 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6493.4898 7.8668090e+10 0.022319120 0.030320089 105.48865 32.822426 6495.5117 7.1882803e+10 0.028219343 0.030929765 105.54725 32.716954 6497.5335 6.6343148e+10 0.034189505 0.031539441 105.60014 32.621752 6499.5553 6.1892539e+10 0.040412528 0.032149117 105.65303 32.526551 6501.5771 5.7881756e+10 0.047010755 0.032758793 105.70592 32.431346 6503.5990 5.4104682e+10 0.054082821 0.033368469 105.75881 32.336132 6505.6208 5.0596813e+10 0.061764252 0.033978144 105.81171 32.240917 6507.6426 4.7377439e+10 0.070169461 0.034587820 105.86460 32.145710 6509.6644 4.4426015e+10 0.079341126 0.035197496 105.91749 32.050509 6511.6863 4.1578008e+10 0.089294469 0.035807172 105.97038 31.955308 6513.7081 3.8553429e+10 0.099878952 0.036416848 106.02494 31.852619 6515.7299 3.5340144e+10 0.11101554 0.037026524 106.08047 31.745516 6517.7517 3.2174995e+10 0.12274758 0.037636200 106.13572 31.639700 6519.7736 2.9356450e+10 0.13515891 0.038245876 106.18861 31.544499 6521.7954 2.7040173e+10 0.14831166 0.038855552 106.24150 31.449297 6523.8172 2.5116612e+10 0.15671991 0.039381658 106.29343 31.354093 6525.8390 2.3354079e+10 0.16387662 0.039686457 106.34280 31.258880 6527.8609 2.1717840e+10 0.17140597 0.041341470 106.39217 31.163666 6529.8827 2.0171594e+10 0.17681778 0.043641833 106.44154 31.068458 6531.9045 1.8802269e+10 0.17980135 0.046545212 106.49090 30.973257 6533.9263 1.7517991e+10 0.18005378 0.047913254 106.54027 30.878055 6535.9482 1.6276191e+10 0.17824430 0.047812987 106.59333 30.775709 6537.9700 1.4980631e+10 0.17827666 0.049142532 106.64887 30.668606 6539.9918 1.3746486e+10 0.17747063 0.050844194 106.70391 30.562447 6542.0136 1.2666739e+10 0.17477180 0.051007416 106.75328 30.467246 6544.0355 1.1755728e+10 0.17245502 0.051673117 106.80264 30.372044 6546.0573 1.0997631e+10 0.17029801 0.052511666 106.85200 30.276843 6548.0791 1.0276487e+10 0.16916660 0.053691272 106.90137 30.181642 6550.1009 9.6330114e+09 0.16783551 0.055010634 106.95074 30.086442 6552.1228 9.0298511e+09 0.16611909 0.055555867 107.00010 29.992671 6554.1446 8.4891858e+09 0.16378142 0.054835414 107.04947 29.900984 6556.1664 7.9866176e+09 0.16165433 0.053988660 107.09884 29.809296 6558.1882 7.4944118e+09 0.15980814 0.053078902 107.15174 29.708800 6560.2101 6.9831978e+09 0.15744970 0.052084910 107.20727 29.601696 6562.2319 6.4743637e+09 0.15485405 0.050659253 107.26232 29.495194 6564.2537 6.0165996e+09 0.15203684 0.048656615 107.30815 29.399992 6566.2755 5.6435536e+09 0.14973149 0.047027013 107.35399 29.304791 6568.2974 5.3358462e+09 0.14781094 0.045498315 107.40058 29.209590 6570.3192 5.0531386e+09 0.14593151 0.044785291 107.44995 29.114388 6572.3410 4.7893379e+09 0.14363090 0.044034867 107.49931 29.019187 6574.3628 4.5425551e+09 0.14082884 0.042680736 107.54734 28.925315 6576.3847 4.3211586e+09 0.13828631 0.040928640 107.59319 28.833628 6578.4065 4.1258406e+09 0.13577146 0.038007725 107.63903 28.741941 6580.4283 3.9265327e+09 0.13371283 0.036124932 107.68798 28.641890 6582.4501 3.7031416e+09 0.13209308 0.035171300 107.73955 28.534787 6584.4720 3.4784488e+09 0.13044933 0.034258416 107.79099 28.427941 6586.4938 3.2725470e+09 0.12886849 0.033164913 107.83683 28.332739 6588.5156 3.1068300e+09 0.12750872 0.033207741 107.88267 28.237538 6590.5374 2.9724285e+09 0.12549432 0.030062353 107.92850 28.142336 6592.5593 2.8378062e+09 0.12350652 0.027530314 107.97434 28.047135 6594.5811 2.7131369e+09 0.12134056 0.025853536 108.02018 27.951934 6596.6029 2.5990857e+09 0.11884671 0.025724533 108.06602 27.857965 6598.6247 2.4961566e+09 0.11699981 0.025108895 108.11186 27.766289 6600.6466 2.4026187e+09 0.11665073 0.026319082 108.15769 27.674614 6602.6684 2.3009730e+09 0.11573655 0.026946261 108.20648 27.575011 6604.6902 2.1797717e+09 0.11474614 0.026481100 108.25805 27.467892 6606.7120 2.0525401e+09 0.11386885 0.026224461 108.30963 27.360767 6608.7339 1.9342777e+09 0.11116409 0.023712968 108.35551 27.268987 6610.7557 1.8330963e+09 0.10829677 0.024725017 108.40135 27.177311 6612.7775 1.7555667e+09 0.10682507 0.023739827 108.44663 27.085083 6614.7993 1.6789358e+09 0.10549502 0.023389783 108.48894 26.989882 6616.8212 1.6128256e+09 0.10378582 0.023411180 108.53125 26.894681 6618.8430 1.5503185e+09 0.10278764 0.024407348 108.57653 26.796935 6620.8648 1.4726111e+09 0.10197024 0.025045881 108.62810 26.693799 6622.8866 1.4000089e+09 0.10071386 0.024522001 108.67967 26.590662 6624.9085 1.3241842e+09 0.099643289 0.025348602 108.72384 26.493871 6626.9303 1.2613690e+09 0.098000298 0.025405637 108.76615 26.398670 6628.9521 1.2103443e+09 0.097194279 0.026089660 108.80846 26.303469 6630.9739 1.1582267e+09 0.095811344 0.025930702 108.85417 26.211654 6632.9958 1.1169016e+09 0.094743693 0.026151744 108.90002 26.119967 6635.0176 1.0738029e+09 0.093486175 0.026402424 108.94609 26.026310 6637.0394 1.0273099e+09 0.092161661 0.026142112 108.99369 25.919206 6639.0612 9.7710544e+08 0.091314451 0.025606189 109.04129 25.812103 6641.0831 9.2559235e+08 0.092105855 0.025148582 109.08568 25.714363 6643.1049 8.8387801e+08 0.091709681 0.025208454 109.12799 25.622687 6645.1267 8.5316237e+08 0.090686363 0.025511041 109.17030 25.531011 6647.1485 8.2055516e+08 0.089490462 0.026515982 109.21669 25.427444 6649.1704 7.8286015e+08 0.088365647 0.027398861 109.26430 25.320341 6651.1922 7.4183532e+08 0.088025940 0.026631444 109.31058 25.217093 6653.2140 7.0283617e+08 0.087624109 0.027634925 109.35289 25.125417 6655.2358 6.7636067e+08 0.086195701 0.027707662 109.39519 25.033742 6657.2577 6.5367071e+08 0.084284310 0.029199983 109.43751 24.942062 6659.2795 6.3019748e+08 0.082645790 0.031776299 109.47983 24.850374 6661.3013 6.0894192e+08 0.081135403 0.032688410 109.52214 24.758687 6663.3231 5.8948451e+08 0.079755030 0.032393666 109.56752 24.658089 6665.3450 5.6506986e+08 0.079318787 0.027981911 109.61512 24.550986 6667.3668 5.4032441e+08 0.078866324 0.027238182 109.66242 24.444764 6669.3886 5.1505278e+08 0.078042405 0.027956579 109.70473 24.353089 6671.4104 4.9568761e+08 0.078135594 0.026871197 109.74704 24.261413 6673.4323 4.8289146e+08 0.077633413 0.028105684 109.79052 24.167205 6675.4541 4.6310116e+08 0.075955720 0.030668084 109.83812 24.064069 6677.4759 4.4089710e+08 0.074520618 0.031681672 109.88572 23.960932 6679.4977 4.2249893e+08 0.074358442 0.029856471 109.92715 23.865820 6681.5196 4.0693546e+08 0.075242310 0.030055951 109.96594 23.774144 6683.5414 3.9430402e+08 0.075602022 0.031981976 110.00473 23.682469 6685.5632 3.8114092e+08 0.075242574 0.033299718 110.05113 23.580891 6687.5850 3.6325069e+08 0.073297334 0.034016625 110.09873 23.477754 6689.6069 3.5057652e+08 0.071086506 0.033469760 110.14497 23.373251 6691.6287 3.3384888e+08 0.070200544 0.032852937 110.18861 23.266132 6693.6505 3.1801226e+08 0.069390022 0.031380926 110.23225 23.159013 6695.6723 3.0096411e+08 0.069246204 0.029735975 110.27480 23.064596 6697.6942 2.8709896e+08 0.068619213 0.030179111 110.31711 22.972921 6699.7160 2.8080686e+08 0.067131648 0.030929791 110.35943 22.881243 6701.7378 2.7221322e+08 0.065424629 0.032492010 110.40304 22.778266 6703.7596 2.6472472e+08 0.065563317 0.035576061 110.44668 22.675130 6705.7815 2.5931299e+08 0.065504742 0.038057868 110.49031 22.571995 6707.8033 2.5447517e+08 0.065079211 0.040071758 110.53395 22.468858 6709.8251 2.5052772e+08 0.064008045 0.040607739 110.57758 22.365722 6711.8469 2.4215722e+08 0.062079151 0.041655801 110.61664 22.273410 6713.8688 2.3073485e+08 0.060203083 0.046828706 110.65542 22.181735 6715.8906 2.2319458e+08 0.058679249 0.048289443 110.69473 22.088816 6717.9124 2.1637259e+08 0.056787718 0.049817832 110.73837 21.985680 6719.9342 2.0914152e+08 0.055641600 0.050482258 110.78200 21.882543 6721.9560 1.9948609e+08 0.055817295 0.050591961 110.82564 21.779398 6723.9779 1.9130867e+08 0.053932179 0.049914321 110.86928 21.676246 6725.9997 1.8132777e+08 0.050213200 0.040951555 110.91260 21.573863 6728.0215 1.7462289e+08 0.049530314 0.039658606 110.95138 21.482188 6730.0433 1.6825405e+08 0.048213410 0.040438338 110.99017 21.390512 6732.0652 1.6273958e+08 0.046566462 0.043752207 111.03007 21.296191 6734.0870 1.6051937e+08 0.045528950 0.049348365 111.07370 21.193054 6736.1088 1.5425267e+08 0.047074424 0.050766418 111.11734 21.089917 6738.1306 1.4804495e+08 0.048074511 0.058040367 111.16097 20.989597 6740.1525 1.4205621e+08 0.047608110 0.064310835 111.20461 20.890428 6742.1743 1.3605912e+08 0.045145891 0.069035459 111.24824 20.790508 6744.1961 1.3221046e+08 0.040598580 0.077945108 111.29188 20.687372 6746.2179 1.2556498e+08 0.038652819 0.076453398 111.33551 20.584236 6748.2398 1.1781787e+08 0.035282112 0.068278349 111.37915 20.481100 6750.2616 1.1253507e+08 0.032329444 0.072450819 111.42278 20.377964 6752.2834 1.1005382e+08 0.029336917 0.073806505 111.46583 20.274829 6754.3052 1.0580270e+08 0.027886902 0.075722597 111.50550 20.171692 6756.3271 1.0187929e+08 0.025200517 0.075008512 111.54517 20.068555 6758.3489 96967250. 0.024901235 0.074443110 111.58732 19.965418 6760.3707 93459636. 0.025164369 0.076768219 111.63096 19.862282 6762.3925 92767407. 0.029186607 0.077417636 111.67417 19.759561 6764.4144 88764500. 0.031595651 0.079503137 111.71385 19.660377 6766.4362 84283421. 0.032187192 0.080700429 111.75352 19.561193 6768.4580 77534262. 0.028131148 0.082504090 111.79551 19.459698 6770.4798 71480558. 0.023554409 0.088043536 111.83914 19.356561 6772.5017 70079907. 0.019451833 0.092947350 111.88253 19.253425 6774.5235 70108167. 0.015278348 0.097851164 111.92220 19.150289 6776.5453 68645590. 0.010717610 0.10275498 111.96187 19.047152 6778.5671 64703708. 0.0053030265 0.10765879 112.00369 18.946169 6780.5890 61150422. -0.0026815350 0.11256261 112.04732 18.846999 6782.6108 58270367. -0.030714199 0.11746642 112.09086 18.747742 6784.6326 55403752. -0.014807648 0.12237023 112.13054 18.644606 6786.6544 50995532. 0.028004947 0.12727405 112.17021 18.541469