# # 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 = 49.037582 km # Date (UTC) = 2013-01-06T10:15:51.614 # Date (julian) = 2456298.92768072 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6496.7374 9.4697879e+10 0.035107396 0.031299369 -36.090773 47.702526 6498.9262 8.3537761e+10 0.042286052 0.031959408 -36.192847 47.594171 6501.1150 7.4611204e+10 0.049542556 0.032619448 -36.291621 47.482515 6503.3039 6.7122371e+10 0.056993201 0.033279487 -36.390395 47.370860 6505.4927 6.0868053e+10 0.064759876 0.033939526 -36.493044 47.263081 6507.6816 5.5398632e+10 0.072949800 0.034599565 -36.596110 47.155719 6509.8704 5.0475086e+10 0.081649908 0.035259605 -36.696711 47.045891 6512.0592 4.5918577e+10 0.090898988 0.035919644 -36.795484 46.934234 6514.2481 4.1920934e+10 0.10081382 0.036579683 -36.891561 46.826562 6516.4369 3.8712559e+10 0.11161682 0.037239722 -36.979357 46.731131 6518.6258 3.6042974e+10 0.12331419 0.037899762 -37.067153 46.635700 6520.8146 3.3566893e+10 0.13575718 0.038559801 -37.161830 46.530103 6523.0035 3.1051132e+10 0.14601122 0.039179969 -37.260619 46.418431 6525.1923 2.8508561e+10 0.15359945 0.039760269 -37.358124 46.306764 6527.3811 2.6090062e+10 0.15996755 0.040993180 -37.452601 46.195109 6529.5700 2.3976403e+10 0.16566087 0.043143709 -37.547078 46.083454 6531.7588 2.1999588e+10 0.17087047 0.046333149 -37.641557 45.975959 6533.9477 2.0125867e+10 0.17417676 0.047922314 -37.736036 45.868597 6536.1365 1.8415147e+10 0.17515524 0.047912633 -37.830515 45.758484 6538.3253 1.6852552e+10 0.17654985 0.049315106 -37.924994 45.646828 6540.5142 1.5460966e+10 0.17584070 0.051097016 -38.019472 45.536510 6542.7030 1.4194407e+10 0.17356277 0.051269145 -38.113949 45.429149 6544.8919 1.3016411e+10 0.17187358 0.052367846 -38.208425 45.321785 6547.0807 1.1921895e+10 0.16983106 0.053318056 -38.298681 45.210203 6549.2695 1.0917387e+10 0.16771732 0.054240971 -38.388865 45.098548 6551.4584 1.0053042e+10 0.16625724 0.055396653 -38.472487 44.995016 6553.6472 9.3653542e+09 0.16446505 0.055009713 -38.552650 44.895766 6555.8361 8.8143813e+09 0.16237237 0.054150865 -38.633165 44.796233 6558.0249 8.3216056e+09 0.16059433 0.053218076 -38.723348 44.688871 6560.2138 7.8087116e+09 0.15811707 0.052081583 -38.813532 44.581509 6562.4026 7.2790186e+09 0.15544590 0.050496820 -38.903725 44.471102 6564.5914 6.7730581e+09 0.15287352 0.048503558 -38.993922 44.359430 6566.7803 6.3194459e+09 0.15071558 0.046741484 -39.082489 44.247764 6568.9691 5.9022362e+09 0.14848649 0.044880812 -39.168379 44.136107 6571.1580 5.5224259e+09 0.14675055 0.044460133 -39.254269 44.024663 6573.3468 5.1611657e+09 0.14447341 0.043379183 -39.340158 43.917302 6575.5356 4.8174348e+09 0.14182072 0.041837291 -39.426048 43.809940 6577.7245 4.5216902e+09 0.13878296 0.039082386 -39.505055 43.708430 6579.9133 4.2792740e+09 0.13537027 0.036568403 -39.581400 43.609182 6582.1022 4.0782666e+09 0.13180331 0.035265993 -39.658713 43.508675 6584.2910 3.8909527e+09 0.12839309 0.034356989 -39.744601 43.397019 6586.4798 3.6943053e+09 0.12555962 0.033165093 -39.830489 43.285362 6588.6687 3.4808033e+09 0.12348085 0.033156620 -39.913060 43.177024 6590.8575 3.2713389e+09 0.12114425 0.029466927 -39.994656 43.069662 6593.0464 3.0766887e+09 0.11917742 0.027059110 -40.078159 42.960393 6595.2352 2.8988446e+09 0.11676669 0.025647963 -40.164049 42.848738 6597.4241 2.7309546e+09 0.11442782 0.025588912 -40.249443 42.737080 6599.6129 2.5674852e+09 0.11322046 0.024966593 -40.331050 42.625408 6601.8017 2.4129500e+09 0.11290552 0.027423262 -40.412656 42.513736 6603.9906 2.2670035e+09 0.11139826 0.026076855 -40.494253 42.405458 6606.1794 2.1301944e+09 0.11100689 0.027181556 -40.575847 42.298097 6608.3683 2.0037939e+09 0.10846030 0.023722635 -40.651529 42.194458 6610.5571 1.8992895e+09 0.10525265 0.024535275 -40.720240 42.095208 6612.7459 1.8139667e+09 0.10342051 0.023763414 -40.788950 41.995959 6614.9348 1.7325561e+09 0.10193460 0.023296464 -40.868474 41.886299 6617.1236 1.6490570e+09 0.10023215 0.023480236 -40.950070 41.774644 6619.3125 1.5595830e+09 0.099246367 0.024601307 -41.029472 41.665181 6621.5013 1.4747998e+09 0.097945145 0.024923287 -41.106771 41.557819 6623.6901 1.3994093e+09 0.095763318 0.024747514 -41.184070 41.449675 6625.8790 1.3289549e+09 0.094137927 0.026446500 -41.261370 41.338018 6628.0678 1.2647321e+09 0.091917665 0.025730634 -41.338671 41.226361 6630.2567 1.2010611e+09 0.089952084 0.025928934 -41.415971 41.114706 6632.4455 1.1372804e+09 0.087864482 0.026085766 -41.493272 41.003050 6634.6344 1.0802489e+09 0.086108885 0.026373115 -41.570572 40.893649 6636.8232 1.0220830e+09 0.084571026 0.026230073 -41.647873 40.786287 6639.0120 9.7068457e+08 0.083633079 0.025623774 -41.722739 40.680516 6641.2009 9.2636681e+08 0.084531377 0.025148983 -41.787642 40.581253 6643.3897 8.8898551e+08 0.084058786 0.025251461 -41.852545 40.481990 6645.5786 8.5577369e+08 0.083123742 0.025722717 -41.924601 40.375577 6647.7674 8.1888642e+08 0.082173434 0.026841819 -42.001901 40.263922 6649.9562 7.7857516e+08 0.081498937 0.026315558 -42.078135 40.153333 6652.1451 7.3799805e+08 0.081045194 0.027290439 -42.151140 40.045972 6654.3339 7.0390213e+08 0.080274893 0.027893972 -42.224145 39.938610 6656.5228 6.7174167e+08 0.078438918 0.028482244 -42.297151 39.827298 6658.7116 6.4289507e+08 0.076865386 0.031323123 -42.370158 39.715641 6660.9004 6.0930356e+08 0.075513128 0.032444459 -42.443164 39.606523 6663.0893 5.7528962e+08 0.074325443 0.032458469 -42.516169 39.499161 6665.2781 5.4319138e+08 0.073785322 0.028091408 -42.589175 39.390671 6667.4670 5.1440468e+08 0.073223848 0.027274983 -42.662182 39.279016 6669.6558 4.9188997e+08 0.072281060 0.027682140 -42.735189 39.167361 6671.8447 4.7124435e+08 0.072021256 0.026877385 -42.804183 39.055705 6674.0335 4.4987606e+08 0.071110615 0.028983044 -42.872895 38.944050 6676.2223 4.2872412e+08 0.068711907 0.031857017 -42.941612 38.834985 6678.4112 4.0843263e+08 0.067649739 0.030661603 -43.010334 38.727607 6680.6000 3.8487375e+08 0.068171207 0.029570985 -43.080243 38.619043 6682.7889 3.6848368e+08 0.068791491 0.031027260 -43.153248 38.507386 6684.9777 3.4885470e+08 0.068788112 0.032703706 -43.226253 38.395730 6687.1665 3.3300125e+08 0.067161960 0.034250020 -43.295185 38.288147 6689.3554 3.2070097e+08 0.064728739 0.033696125 -43.363897 38.180785 6691.5442 3.0320910e+08 0.063965333 0.032872863 -43.432608 38.070760 6693.7331 2.8982502e+08 0.063165144 0.031352603 -43.501320 37.959105 6695.9219 2.7299631e+08 0.063136888 0.029690131 -43.568779 37.848702 6698.1107 2.5978412e+08 0.062443066 0.030369827 -43.633197 37.741340 6700.2996 2.4967470e+08 0.060861370 0.030889930 -43.697614 37.633979 6702.4884 2.3942713e+08 0.059815155 0.033266741 -43.766167 37.522481 6704.6773 2.3048747e+08 0.060184690 0.036510128 -43.834878 37.410824 6706.8661 2.1831790e+08 0.060014062 0.039953799 -43.900865 37.299168 6709.0550 2.0774441e+08 0.059511992 0.041097592 -43.965281 37.187512 6711.2438 1.9789029e+08 0.057802367 0.040969600 -44.031011 37.077169 6713.4326 1.8886889e+08 0.055786503 0.045251363 -44.099722 36.969807 6715.6215 1.8337473e+08 0.053935498 0.048014214 -44.168433 36.862446 6717.8103 1.7552595e+08 0.051911285 0.049824147 -44.232949 36.750887 6719.9992 1.6784050e+08 0.050710376 0.050420568 -44.297366 36.639230 6722.1880 1.6167158e+08 0.050693994 0.050372791 -44.367754 36.520409 6724.3768 1.5350647e+08 0.047868496 0.046779821 -44.441376 36.397707 6726.5657 1.4787272e+08 0.044844995 0.040956469 -44.509377 36.281747 6728.7545 1.4003027e+08 0.044452790 0.040697502 -44.573802 36.170075 6730.9434 1.3306380e+08 0.042818273 0.041672367 -44.638226 36.059622 6733.1322 1.2529968e+08 0.041753782 0.044642072 -44.702644 35.952260 6735.3210 1.1897171e+08 0.042380092 0.049634244 -44.767062 35.844898 6737.5099 1.1567438e+08 0.044102177 0.055759816 -44.827380 35.737536 6739.6987 1.1312041e+08 0.044449087 0.063681659 -44.887502 35.630175 6741.8876 1.1119245e+08 0.042612960 0.068290085 -44.956072 35.510143 6744.0764 1.0438248e+08 0.038052660 0.077852512 -45.029694 35.382534 6746.2652 98447272. 0.036210561 0.075903458 -45.095373 35.266837 6748.4541 95002980. 0.033411771 0.069405885 -45.155496 35.159476 6750.6429 91152269. 0.030796421 0.073101963 -45.215618 35.050999 6752.8318 89700238. 0.028185624 0.073171960 -45.275740 34.939342 6755.0206 85341239. 0.026611179 0.074596308 -45.335862 34.827685 6757.2095 82787460. 0.024327568 0.076104416 -45.403984 34.705743 6759.3983 79729512. 0.025476050 0.075916070 -45.472697 34.583040 6761.5871 75465618. 0.027918945 0.078016734 -45.533732 34.470211 6763.7760 73086800. 0.032154029 0.078801023 -45.593854 34.358556 6765.9648 72236880. 0.034200599 0.079707325 -45.653977 34.249327 6768.1537 71893885. 0.031185085 0.081408932 -45.714099 34.141965 6770.3425 66973555. 0.026780312 0.087710418 -45.776253 34.030975 6772.5313 62722993. 0.022965492 0.093019320 -45.844968 33.908273 6774.7202 59161470. 0.019140405 0.098328222 -45.911972 33.787771 6776.9090 57807510. 0.015297586 0.10363712 -45.972094 33.676114 6779.0979 56887262. 0.011447154 0.10894603 -46.032216 33.564457 6781.2867 54181055. 0.0075854785 0.11425493 -46.095543 33.443185 6783.4755 51847817. 0.0036809496 0.11956383 -46.159347 33.320483 6785.6644 52351520. -0.00029853953 0.12487273 -46.220085 33.210560 6787.8532 49629833. -0.0047769682 0.13018163 -46.280209 33.103199 6790.0421 46548936. -0.012507016 0.13549054 -46.342189 32.985623 6792.2309 46005014. -0.013181217 0.14079944 -46.405993 32.858014 6794.4198 47071389. -0.010338004 0.14610834 -46.469797 32.732697