# # 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 = 52.624475 km # Date (UTC) = 2013-01-06T10:41:41.659 # Date (julian) = 2456298.94562105 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6493.0970 7.2904314e+10 0.024323421 0.030201634 92.369518 38.657419 6495.3551 6.5579128e+10 0.031048895 0.030882540 92.446525 38.536110 6497.6131 5.9240427e+10 0.037637293 0.031563445 92.521838 38.416493 6499.8711 5.3695541e+10 0.044243526 0.032244351 92.597151 38.296877 6502.1292 4.8953953e+10 0.051046938 0.032925256 92.672464 38.177261 6504.3872 4.4938727e+10 0.058242880 0.033606162 92.747777 38.057644 6506.6453 4.1325639e+10 0.066011455 0.034287067 92.823094 37.938028 6508.9033 3.7807122e+10 0.074404039 0.034967973 92.898411 37.818411 6511.1613 3.4392427e+10 0.083492919 0.035648879 92.973724 37.698795 6513.4194 3.1210724e+10 0.093410409 0.036329784 93.049037 37.579178 6515.6774 2.8545035e+10 0.10443581 0.037010690 93.117108 37.467381 6517.9354 2.6442082e+10 0.11681162 0.037691595 93.180121 37.361043 6520.1935 2.4736226e+10 0.13048114 0.038372501 93.243747 37.254043 6522.4515 2.3119845e+10 0.14389044 0.039035487 93.319064 37.134429 6524.7096 2.1421513e+10 0.15332650 0.039679035 93.394380 37.014814 6526.9676 1.9718397e+10 0.16176571 0.040682500 93.466182 36.895198 6529.2256 1.8148496e+10 0.16857700 0.042595204 93.537064 36.775581 6531.4837 1.6713600e+10 0.17500815 0.045932674 93.607948 36.655965 6533.7417 1.5421638e+10 0.17913856 0.047834793 93.678833 36.536349 6535.9998 1.4220710e+10 0.17925997 0.047790609 93.749717 36.416732 6538.2578 1.3105019e+10 0.17993228 0.049282212 93.820599 36.297116 6540.5158 1.2065559e+10 0.17843875 0.051097793 93.891481 36.177500 6542.7739 1.1085627e+10 0.17586678 0.051296041 93.962367 36.057883 6545.0319 1.0168009e+10 0.17401747 0.052455853 94.033252 35.938267 6547.2899 9.3806033e+09 0.17164951 0.053397625 94.095111 35.828802 6549.5480 8.7443513e+09 0.16949127 0.054524719 94.154178 35.722478 6551.8060 8.1965142e+09 0.16763974 0.055518677 94.215897 35.613169 6554.0641 7.6923355e+09 0.16503637 0.054833725 94.286793 35.493534 6556.3221 7.1724197e+09 0.16273971 0.053965771 94.357689 35.373900 6558.5801 6.6590236e+09 0.16028816 0.052744956 94.424288 35.258569 6560.8382 6.1961750e+09 0.15719148 0.051518586 94.490742 35.143384 6563.0962 5.7722980e+09 0.15449946 0.049817069 94.557196 35.025052 6565.3543 5.3868188e+09 0.15175333 0.047916138 94.623650 34.905435 6567.6123 5.0300896e+09 0.14938612 0.046099479 94.690103 34.785819 6569.8703 4.6850639e+09 0.14729813 0.044909069 94.756554 34.666203 6572.1284 4.3693664e+09 0.14493116 0.044156642 94.821560 34.549188 6574.3864 4.1202689e+09 0.14175587 0.042669415 94.880629 34.442864 6576.6444 3.9202045e+09 0.13847653 0.040629623 94.939699 34.336540 6578.9025 3.7426567e+09 0.13442635 0.037224487 95.003615 34.221492 6581.1605 3.5531142e+09 0.13073770 0.035548001 95.070069 34.101875 6583.4186 3.3467173e+09 0.12768721 0.034809810 95.136523 33.982259 6585.6766 3.1422899e+09 0.12485178 0.033429847 95.202977 33.862642 6587.9346 2.9522686e+09 0.12301274 0.033365449 95.268803 33.743655 6590.1927 2.7796992e+09 0.12099470 0.030703659 95.330826 33.628469 6592.4507 2.6205144e+09 0.11869826 0.027635745 95.392848 33.513284 6594.7088 2.4737686e+09 0.11645689 0.025783452 95.454879 33.394163 6596.9668 2.3326110e+09 0.11397854 0.025722878 95.516912 33.274529 6599.2248 2.2077913e+09 0.11235976 0.024943253 95.577084 33.163251 6601.4829 2.1053940e+09 0.11227075 0.027273094 95.636153 33.056927 6603.7409 2.0209467e+09 0.11079179 0.026224658 95.695484 32.949428 6605.9989 1.9324028e+09 0.11028410 0.027503079 95.757507 32.829812 6608.2570 1.8428180e+09 0.10776888 0.023725577 95.819530 32.710195 6610.5150 1.7415101e+09 0.10463370 0.024495071 95.881553 32.594262 6612.7731 1.6442296e+09 0.10303065 0.023743150 95.943576 32.479076 6615.0311 1.5595881e+09 0.10175336 0.023252489 96.005599 32.361348 6617.2891 1.4747384e+09 0.10035561 0.023535112 96.067621 32.241732 6619.5472 1.4005837e+09 0.099542265 0.024657939 96.129644 32.122115 6621.8052 1.3220233e+09 0.098336141 0.024822555 96.191667 32.002498 6624.0633 1.2477112e+09 0.096279631 0.024896169 96.253046 31.883906 6626.3213 1.1871949e+09 0.094710915 0.026181547 96.304245 31.781507 6628.5793 1.1379173e+09 0.092814722 0.025938309 96.355444 31.679107 6630.8374 1.0960696e+09 0.090695569 0.025930365 96.412275 31.567748 6633.0954 1.0531418e+09 0.088984070 0.026168910 96.474298 31.448133 6635.3534 1.0080768e+09 0.087300941 0.026452792 96.535156 31.328517 6637.6115 9.5992313e+08 0.086106134 0.025861925 96.592751 31.208901 6639.8695 9.1484416e+08 0.086068242 0.025317287 96.650385 31.089324 6642.1276 8.7123054e+08 0.086488859 0.025156916 96.712396 30.974125 6644.3856 8.3010241e+08 0.085698189 0.025385281 96.774419 30.858938 6646.6436 7.9171789e+08 0.084814229 0.026253316 96.833124 30.740434 6648.9017 7.5421350e+08 0.083772217 0.027567870 96.890716 30.620818 6651.1597 7.2083780e+08 0.083538972 0.026606565 96.948309 30.503380 6653.4178 6.8770926e+08 0.083193546 0.027738952 97.005904 30.388194 6655.6758 6.5854241e+08 0.081675922 0.027889455 97.063498 30.271970 6657.9338 6.2818158e+08 0.080195240 0.029984326 97.121090 30.152354 6660.1919 5.9763887e+08 0.078796586 0.031800398 97.178682 30.032739 6662.4499 5.6946185e+08 0.077421825 0.032791846 97.236274 29.917451 6664.7079 5.4247442e+08 0.076595415 0.029615740 97.293866 29.802264 6666.9660 5.1953359e+08 0.076329508 0.027096829 97.346858 29.693448 6669.2240 4.9907615e+08 0.075167222 0.028125615 97.398059 29.587110 6671.4821 4.8287241e+08 0.075138245 0.026872218 97.449615 29.479172 6673.7401 4.6831235e+08 0.074373346 0.028566093 97.502776 29.363986 6675.9981 4.5166147e+08 0.072027572 0.031710160 97.555936 29.248800 6678.2562 4.3267415e+08 0.070956988 0.030765271 97.613192 29.129522 6680.5142 4.1262334e+08 0.071402016 0.029552457 97.670787 29.009906 6682.7723 3.9538813e+08 0.072068472 0.031014575 97.725427 28.893242 6685.0303 3.8003962e+08 0.071991201 0.032736835 97.778588 28.778056 6687.2883 3.6612577e+08 0.070193181 0.034182094 97.833563 28.662870 6689.5464 3.4976934e+08 0.067897364 0.033524203 97.891159 28.547684 6691.8044 3.3265796e+08 0.067099839 0.032811475 97.948080 28.431825 6694.0624 3.1450449e+08 0.066359145 0.031173504 98.001241 28.312209 6696.3205 2.9630532e+08 0.066453170 0.029808941 98.054401 28.192593 6698.5785 2.8507987e+08 0.065514594 0.031011908 98.107565 28.076940 6700.8366 2.7646362e+08 0.063758715 0.031288220 98.160729 27.961754 6703.0946 2.6659715e+08 0.063463850 0.033911958 98.216715 27.846568 6705.3526 2.5592325e+08 0.063678116 0.037295529 98.274307 27.731382 6707.6107 2.4564256e+08 0.063408014 0.040099347 98.330215 27.614511 6709.8687 2.3419625e+08 0.062491791 0.040579997 98.383379 27.494894 6712.1268 2.2780473e+08 0.060303976 0.042065301 98.436544 27.375821 6714.3848 2.1961025e+08 0.058171073 0.047332337 98.489716 27.260618 6716.6428 2.1363487e+08 0.056182029 0.049348193 98.542888 27.145414 6718.9009 2.0722826e+08 0.053674173 0.051215452 98.598246 27.015971 6721.1589 1.9493419e+08 0.054050168 0.050351779 98.653942 26.884328 6723.4169 1.8411343e+08 0.052634513 0.049601483 98.707378 26.767351 6725.6750 1.7032617e+08 0.048491562 0.041154388 98.760539 26.652165 6727.9330 1.6231530e+08 0.047476441 0.039717330 98.813702 26.536979 6730.1911 1.5655300e+08 0.045947437 0.040640873 98.866866 26.421793 6732.4491 1.5121825e+08 0.044233357 0.043822887 98.920028 26.304938 6734.7071 1.4673067e+08 0.043769769 0.049311053 98.973189 26.185321 6736.9652 1.3838488e+08 0.045438925 0.054003921 99.025821 26.066234 6739.2232 1.2828845e+08 0.045989991 0.063099727 99.074554 25.951048 6741.4813 1.2261436e+08 0.044239681 0.067131261 99.123286 25.835862 6743.7393 1.1777978e+08 0.039521053 0.076034698 99.182390 25.706484 6745.9973 1.1610607e+08 0.037774428 0.078986157 99.243150 25.574840 6748.2554 1.1243618e+08 0.033484412 0.068360416 99.293239 25.457799 6750.5134 1.0779280e+08 0.030509384 0.072880799 99.341972 25.342613 6752.7714 1.0319800e+08 0.027501253 0.073241767 99.390704 25.227428 6755.0295 96059933. 0.025442948 0.074592418 99.439437 25.112242 6757.2875 92745879. 0.022816957 0.075867494 99.489821 24.997057 6759.5456 89700764. 0.023531110 0.075951608 99.542982 24.881870 6761.8036 87133195. 0.026296554 0.078034618 99.596436 24.764781 6764.0616 83673487. 0.029665333 0.079486239 99.652131 24.633137 6766.3197 76998138. 0.030541080 0.080436867 99.706848 24.503807 6768.5777 72566797. 0.026122672 0.082934790 99.755581 24.388621 6770.8358 72420170. 0.021553066 0.088906777 99.804314 24.273435 6773.0938 71861191. 0.017249639 0.094383513 99.859197 24.143711 6775.3518 70165741. 0.012841529 0.099860249 99.914893 24.012067 6777.6099 66019428. 0.0081525817 0.10533699 99.964271 23.895356 6779.8679 62620582. 0.0033752473 0.11081372 100.01301 23.780153 6782.1259 61503137. -0.0013330782 0.11629046 100.06628 23.654254 6784.3840 58752232. -0.0065476857 0.12176719 100.12196 23.522631 6786.6420 56198770. -0.012331598 0.12724393 100.16996 23.402110 6788.9001 52972835. -0.019489941 0.13272067 100.21426 23.286907 6791.1581 52050348. -0.029624885 0.13819740 100.26335 23.164811 6793.4161 52888150. -0.068035814 0.14367414 100.31904 23.033168 6795.6742 51131453. -0.042748979 0.14915087 100.37165 22.910802 6797.9322 47718435. 0.019948148 0.15462761 100.42038 22.800046