# # 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 = 51.294272 km # Date (UTC) = 2013-12-06T10:07:13.261 # Date (julian) = 2456632.92168126 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.2479 5.4708828e+10 0.053903119 0.032961067 -31.802801 52.559761 6504.3696 5.0016646e+10 0.061636940 0.033600849 -31.927681 52.459856 6506.4913 4.6108545e+10 0.069635296 0.034240631 -32.043762 52.367361 6508.6129 4.2906018e+10 0.078002305 0.034880413 -32.151078 52.282248 6510.7346 4.0324203e+10 0.086856017 0.035520195 -32.258394 52.197135 6512.8563 3.7815693e+10 0.096113385 0.036159977 -32.376414 52.100208 6514.9779 3.5112808e+10 0.10567344 0.036799760 -32.497131 52.000304 6517.0996 3.2483667e+10 0.11563070 0.037439542 -32.612532 51.904800 6519.2212 3.0128183e+10 0.12610038 0.038079324 -32.719835 51.815999 6521.3429 2.8099167e+10 0.13714245 0.038719106 -32.827138 51.727197 6523.4646 2.6288703e+10 0.14452773 0.039294255 -32.931873 51.638395 6525.5862 2.4600104e+10 0.15008695 0.039715309 -33.035475 51.549592 6527.7079 2.2907435e+10 0.15557717 0.041230413 -33.139100 51.460761 6529.8296 2.1107141e+10 0.16017550 0.043557203 -33.251391 51.360985 6531.9512 1.9212420e+10 0.16385909 0.046613199 -33.363783 51.261082 6534.0729 1.7410425e+10 0.16581035 0.047964947 -33.471008 51.167708 6536.1946 1.5946406e+10 0.16684964 0.047964573 -33.574624 51.078894 6538.3162 1.4772485e+10 0.16928259 0.049310662 -33.678239 50.990079 6540.4379 1.3726581e+10 0.17025882 0.051060969 -33.789636 50.891434 6542.5595 1.2706548e+10 0.16932434 0.051214672 -33.902028 50.791531 6544.6812 1.1721763e+10 0.16817012 0.052196958 -34.008373 50.697003 6546.8029 1.0865850e+10 0.16636664 0.053125161 -34.108275 50.608200 6548.9245 1.0113500e+10 0.16436886 0.053943744 -34.208177 50.519398 6551.0462 9.4652764e+09 0.16301954 0.055251968 -34.305188 50.430595 6553.1679 8.9034243e+09 0.16207017 0.055250683 -34.401392 50.341792 6555.2895 8.3753119e+09 0.16057986 0.054610091 -34.498544 50.251785 6557.4112 7.8548218e+09 0.15897804 0.053608370 -34.606772 50.147718 6559.5329 7.3261872e+09 0.15700112 0.052327037 -34.715001 50.043651 6561.6545 6.8198978e+09 0.15492283 0.051050147 -34.815101 49.949906 6563.7762 6.3874470e+09 0.15274749 0.049030500 -34.911315 49.861092 6565.8978 6.0255354e+09 0.15105364 0.047298878 -35.007530 49.772279 6568.0195 5.7057895e+09 0.15006816 0.045753725 -35.100127 49.683476 6570.1412 5.4245712e+09 0.14898753 0.044859029 -35.192629 49.594674 6572.2628 5.1468948e+09 0.14752591 0.044079633 -35.288273 49.502855 6574.3845 4.8488867e+09 0.14552970 0.042670329 -35.392340 49.402952 6576.5062 4.5340840e+09 0.14364845 0.040788783 -35.496407 49.303049 6578.6278 4.2408143e+09 0.14126365 0.037658193 -35.590419 49.212796 6580.7495 4.0066901e+09 0.13887174 0.035828110 -35.682921 49.123994 6582.8712 3.8207475e+09 0.13668653 0.035056727 -35.776658 49.032646 6584.9928 3.6306514e+09 0.13423463 0.033974682 -35.876563 48.928579 6587.1145 3.4350273e+09 0.13173016 0.033183736 -35.976468 48.824512 6589.2362 3.2490761e+09 0.12945914 0.032577472 -36.067894 48.732106 6591.3578 3.0975950e+09 0.12697213 0.028798156 -36.156709 48.643293 6593.4795 2.9647370e+09 0.12499362 0.026656449 -36.246212 48.553790 6595.6011 2.8248877e+09 0.12271685 0.025685911 -36.346115 48.453886 6597.7228 2.6810499e+09 0.12092540 0.025494636 -36.446018 48.353981 6599.8445 2.5403797e+09 0.12024362 0.024980521 -36.538597 48.258961 6601.9661 2.4216554e+09 0.11994948 0.027500685 -36.627400 48.166459 6604.0878 2.3149950e+09 0.11855894 0.026123409 -36.716203 48.073957 6606.2095 2.2204181e+09 0.11814177 0.027127563 -36.801463 47.984997 6608.3311 2.1328831e+09 0.11562675 0.023723617 -36.886564 47.896196 6610.4528 2.0413700e+09 0.11260076 0.024435611 -36.974375 47.804568 6612.5745 1.9467493e+09 0.11083258 0.023891540 -37.070116 47.704663 6614.6961 1.8437897e+09 0.10967223 0.023460893 -37.165857 47.604758 6616.8178 1.7446719e+09 0.10816129 0.023410650 -37.252540 47.511152 6618.9394 1.6631593e+09 0.10721262 0.024480191 -37.337653 47.418638 6621.0611 1.5910944e+09 0.10608647 0.025069191 -37.423736 47.325015 6623.1828 1.5193494e+09 0.10422161 0.024559542 -37.515316 47.225110 6625.3044 1.4452278e+09 0.10251685 0.025760893 -37.606895 47.125205 6627.4261 1.3687494e+09 0.10020959 0.025481408 -37.690864 47.033603 6629.5478 1.3063925e+09 0.098548712 0.026010067 -37.772265 46.944801 6631.6694 1.2504329e+09 0.096243635 0.025998766 -37.854124 46.855312 6633.7911 1.1905843e+09 0.094310715 0.026290370 -37.945703 46.751246 6635.9128 1.1286333e+09 0.092539375 0.026536670 -38.037282 46.647179 6638.0344 1.0700335e+09 0.091479001 0.025670143 -38.122320 46.552923 6640.1561 1.0227317e+09 0.091471344 0.025251554 -38.203723 46.464120 6642.2778 9.8248760e+08 0.091549020 0.025163062 -38.285126 46.375317 6644.3994 9.4040862e+08 0.090628947 0.025386774 -38.376094 46.272165 6646.5211 8.9585523e+08 0.089680136 0.026189875 -38.467671 46.168098 6648.6427 8.5179384e+08 0.088657752 0.027394539 -38.551793 46.072235 6650.7644 8.1852377e+08 0.088147868 0.026430232 -38.629506 45.983422 6652.8861 7.8891619e+08 0.087682180 0.027494315 -38.707219 45.894609 6655.0077 7.5903692e+08 0.086426223 0.027613413 -38.793038 45.793052 6657.1294 7.2599630e+08 0.084468320 0.029051210 -38.880454 45.688985 6659.2511 6.8462168e+08 0.082989993 0.031782226 -38.966066 45.586722 6661.3727 6.4957679e+08 0.081617192 0.032724788 -39.049320 45.486817 6663.4944 6.1368145e+08 0.080339448 0.032346205 -39.132402 45.387141 6665.6161 5.8351075e+08 0.080005180 0.027537702 -39.210104 45.294639 6667.7377 5.6281003e+08 0.079178197 0.027374435 -39.287806 45.202136 6669.8594 5.4217274e+08 0.078253968 0.027473056 -39.367330 45.107204 6671.9810 5.2442439e+08 0.077759587 0.026879329 -39.450583 45.007301 6674.1027 5.0315165e+08 0.076681807 0.029041434 -39.533837 44.907398 6676.2244 4.7479542e+08 0.074310298 0.031858332 -39.617090 44.803640 6678.3460 4.5321431e+08 0.073178616 0.030705168 -39.700344 44.699573 6680.4677 4.3223986e+08 0.073461487 0.029542413 -39.778757 44.603494 6682.5894 4.1335412e+08 0.073964713 0.030874842 -39.852768 44.514679 6684.7110 3.9621030e+08 0.073888291 0.032690174 -39.926778 44.425865 6686.8327 3.7946166e+08 0.072523478 0.034245559 -40.008381 44.324522 6688.9544 3.6542835e+08 0.069791455 0.034005489 -40.091635 44.220455 6691.0760 3.5141908e+08 0.068946599 0.032983326 -40.173145 44.118132 6693.1977 3.3636164e+08 0.068181091 0.031536270 -40.252236 44.018228 6695.3194 3.1768259e+08 0.067818366 0.029800813 -40.331180 43.918447 6697.4410 3.0085741e+08 0.067274135 0.030147076 -40.401481 43.825945 6699.5627 2.8603836e+08 0.065920996 0.031071241 -40.471782 43.733443 6701.6843 2.7740011e+08 0.064121577 0.032413571 -40.544844 43.638617 6703.8060 2.6804741e+08 0.064223751 0.035692120 -40.623934 43.538714 6705.9277 2.5772215e+08 0.064198410 0.038317817 -40.703024 43.438811 6708.0493 2.4335992e+08 0.063874524 0.040097301 -40.782116 43.335111 6710.1710 2.3071245e+08 0.062624820 0.040529965 -40.861208 43.231044 6712.2927 2.2154506e+08 0.060456466 0.042373335 -40.938179 43.129097 6714.4143 2.1286234e+08 0.058310984 0.047334557 -41.013107 43.029193 6716.5360 2.0608300e+08 0.056345958 0.049190824 -41.088482 42.928840 6718.6577 1.9618309e+08 0.053996783 0.050836661 -41.167584 42.824758 6720.7793 1.8873853e+08 0.053845548 0.050329469 -41.246686 42.720676 6722.9010 1.8067967e+08 0.052895454 0.049491356 -41.322844 42.619541 6725.0226 1.7312846e+08 0.048546694 0.041561874 -41.397772 42.519638 6727.1443 1.6726233e+08 0.046828694 0.040768124 -41.472700 42.419735 6729.2660 1.6198830e+08 0.046189291 0.040868149 -41.547628 42.319830 6731.3876 1.5666706e+08 0.044317740 0.042521496 -41.622556 42.219926 6733.5093 1.5071700e+08 0.043150477 0.046689456 -41.697485 42.116272 6735.6310 1.4498654e+08 0.044108167 0.049963249 -41.772413 42.012205 6737.7526 1.4093251e+08 0.045460087 0.056533086 -41.845266 41.910213 6739.8743 1.3675482e+08 0.045415914 0.063896521 -41.916031 41.810310 6741.9960 1.3117296e+08 0.043295337 0.068599222 -41.987195 41.710007 6744.1176 1.2716636e+08 0.038608848 0.077884389 -42.062123 41.605941 6746.2393 1.2355905e+08 0.036672909 0.076205314 -42.137051 41.501874 6748.3609 1.1826579e+08 0.033553095 0.068915868 -42.209092 41.400695 6750.4826 1.1398828e+08 0.030753338 0.072828214 -42.279858 41.300790 6752.6043 1.0783059e+08 0.027946588 0.073435214 -42.350624 41.199673 6754.7259 1.0118752e+08 0.026366392 0.075046066 -42.421389 41.095606 6756.8476 97260872. 0.023635646 0.076347923 -42.492154 40.991538 6758.9693 95512020. 0.024434764 0.075754971 -42.562918 40.891174 6761.0909 95776550. 0.025066664 0.077975738 -42.633683 40.791271 6763.2126 94776888. 0.030198970 0.077085234 -42.704453 40.689333 6765.3343 89718474. 0.032367909 0.079592214 -42.775230 40.585251 6767.4559 81940627. 0.030993078 0.081465248 -42.846005 40.481524 6769.5776 80834843. 0.026335877 0.085855169 -42.916770 40.381619 6771.6993 81605729. 0.022558345 0.091001137 -42.987534 40.281715 6773.8209 80195514. 0.018734355 0.096147105 -43.061953 40.168820 6775.9426 73834110. 0.014769454 0.10129307 -43.138072 40.049885 6778.0642 65967772. 0.010708421 0.10643904 -43.208667 39.941997 6780.1859 59666043. 0.0066512381 0.11158501 -43.275272 39.842092 6782.3076 57243865. 0.0027412148 0.11673098 -43.341876 39.741445 6784.4292 56414899. -0.0011325439 0.12187694 -43.408478 39.637379 6786.5509 55620673. -0.0050937433 0.12702291 -43.475081 39.533312 6788.6726 55209402. -0.0091550651 0.13216888 -43.549068 39.421400 6790.7942 55053624. -0.013404747 0.13731485 -43.625186 39.307223 6792.9159 55531443. -0.017940602 0.14246082 -43.694891 39.199860 6795.0376 52667405. -0.023554990 0.14760678 -43.761494 39.095794 6797.1592 51398721. -0.031261987 0.15275275 -43.828096 38.992858 6799.2809 48403511. -0.059150463 0.15789872 -43.894699 38.892953 6801.4025 46969184. -0.043608718 0.16304469 -43.961301 38.793049 6803.5242 46298948. -0.0043710013 0.16819066 -44.032041 38.680735