# # 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 = 43.968745 km # Date (UTC) = 2016-01-12T10:24:43.992 # Date (julian) = 2457399.93384251 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.1700 8.0370470e+10 0.048861162 0.032636015 -35.085682 51.155109 6503.0032 7.2099435e+10 0.056765100 0.033188809 -35.182792 51.065192 6504.8364 6.5525659e+10 0.064996757 0.033741603 -35.279903 50.975275 6506.6696 5.9804781e+10 0.073511491 0.034294396 -35.377014 50.885358 6508.5027 5.5162640e+10 0.082430830 0.034847190 -35.474125 50.795441 6510.3359 5.1077300e+10 0.091696715 0.035399984 -35.567857 50.702144 6512.1691 4.7158330e+10 0.10118287 0.035952777 -35.661371 50.608629 6514.0023 4.4003722e+10 0.11110478 0.036505571 -35.754886 50.515687 6515.8355 4.1180016e+10 0.12133210 0.037058365 -35.848399 50.425770 6517.6687 3.8444208e+10 0.13176732 0.037611159 -35.941912 50.335853 6519.5019 3.5863743e+10 0.14240159 0.038163952 -36.035426 50.245935 6521.3351 3.3265331e+10 0.15313863 0.038716746 -36.128939 50.156018 6523.1683 3.0980159e+10 0.16077987 0.039220818 -36.222452 50.066101 6525.0015 2.8931860e+10 0.16737688 0.039782048 -36.315974 49.976176 6526.8347 2.6957485e+10 0.17168258 0.040543120 -36.409503 49.886246 6528.6678 2.5115845e+10 0.17508451 0.041972283 -36.503031 49.796315 6530.5010 2.3415517e+10 0.17852293 0.044530132 -36.593604 49.703452 6532.3342 2.1990249e+10 0.18139225 0.046963399 -36.683521 49.609938 6534.1674 2.0654694e+10 0.18166440 0.047991389 -36.773930 49.516071 6536.0006 1.9146617e+10 0.18010503 0.047791041 -36.876694 49.413307 6537.8338 1.7562610e+10 0.18040308 0.049078322 -36.979459 49.310542 6539.6670 1.6034304e+10 0.17927562 0.050450995 -37.072266 49.215556 6541.5002 1.4749549e+10 0.17690535 0.051164326 -37.158586 49.125639 6543.3334 1.3662357e+10 0.17493717 0.051469386 -37.244906 49.035722 6545.1666 1.2712054e+10 0.17338908 0.052457059 -37.331227 48.942836 6546.9997 1.1855243e+10 0.17152111 0.053287155 -37.417548 48.849322 6548.8329 1.1109746e+10 0.16915926 0.053916389 -37.503869 48.755968 6550.6661 1.0443916e+10 0.16762462 0.055152152 -37.590190 48.666051 6552.4993 9.8207991e+09 0.16617377 0.055461089 -37.676511 48.576134 6554.3325 9.2091282e+09 0.16387096 0.054839358 -37.762832 48.486217 6556.1657 8.6041912e+09 0.16153416 0.053988765 -37.849152 48.396300 6557.9989 8.0175017e+09 0.15972887 0.053240001 -37.935471 48.306383 6559.8321 7.4852213e+09 0.15727149 0.052293263 -38.020050 48.214724 6561.6653 7.0232780e+09 0.15429215 0.051044851 -38.102774 48.121211 6563.4985 6.6009533e+09 0.15140909 0.049351764 -38.185497 48.027697 6565.3317 6.2024757e+09 0.14900479 0.047941804 -38.268221 47.936715 6567.1648 5.8408607e+09 0.14665928 0.046477810 -38.350944 47.846798 6568.9980 5.5130516e+09 0.14397367 0.044854234 -38.433668 47.756881 6570.8312 5.2076969e+09 0.14192821 0.044573189 -38.516392 47.663643 6572.6644 4.9276162e+09 0.13952848 0.043849664 -38.599115 47.570130 6574.4976 4.6541054e+09 0.13659733 0.042616008 -38.681326 47.477130 6576.3308 4.4007743e+09 0.13384720 0.040990644 -38.760465 47.387199 6578.1640 4.1589820e+09 0.13137653 0.038390666 -38.839605 47.297268 6579.9972 3.9253969e+09 0.12929517 0.036522307 -38.918740 47.206036 6581.8304 3.7064073e+09 0.12723384 0.035345163 -38.997867 47.112521 6583.6636 3.5080643e+09 0.12534434 0.034685805 -39.076995 47.019007 6585.4967 3.3225891e+09 0.12362010 0.033573637 -39.156122 46.927589 6587.3299 3.1495349e+09 0.12201111 0.033231470 -39.235250 46.837672 6589.1631 2.9873999e+09 0.12010677 0.032722350 -39.314378 46.747754 6590.9963 2.8268713e+09 0.11779757 0.029208762 -39.393504 46.654951 6592.8295 2.6760459e+09 0.11589926 0.027267822 -39.472630 46.561438 6594.6627 2.5223288e+09 0.11368423 0.025808734 -39.551676 46.468005 6596.4959 2.3863142e+09 0.11108308 0.025725019 -39.627207 46.378087 6598.3291 2.2560444e+09 0.10924204 0.025250052 -39.702737 46.288170 6600.1623 2.1295261e+09 0.10856492 0.025323470 -39.778267 46.197383 6601.9955 2.0192913e+09 0.10772646 0.027514495 -39.853799 46.103868 6603.8286 1.9117950e+09 0.10604035 0.026172715 -39.929330 46.010354 6605.6618 1.8227333e+09 0.10532924 0.027220274 -40.004861 45.918500 6607.4950 1.7312571e+09 0.10336695 0.024729496 -40.080391 45.828582 6609.3282 1.6418371e+09 0.10030933 0.023803429 -40.155921 45.738665 6611.1614 1.5618061e+09 0.097357890 0.024855523 -40.231451 45.646299 6612.9946 1.4800649e+09 0.096109166 0.023577624 -40.306981 45.552785 6614.8278 1.4056317e+09 0.094664887 0.023370176 -40.382511 45.459272 6616.6610 1.3336297e+09 0.093163267 0.023386040 -40.454802 45.368998 6618.4942 1.2733676e+09 0.092596958 0.024143955 -40.526736 45.279081 6620.3274 1.2171363e+09 0.092176510 0.024872690 -40.598671 45.188729 6622.1606 1.1561644e+09 0.091319624 0.024715258 -40.670616 45.095200 6623.9937 1.0979127e+09 0.089863906 0.024859992 -40.742561 45.001671 6625.8269 1.0461558e+09 0.089226772 0.026384386 -40.814502 44.908148 6627.6601 1.0020035e+09 0.087740203 0.025571807 -40.886436 44.814635 6629.4933 9.6612009e+08 0.086758219 0.026019912 -40.958370 44.721122 6631.3265 9.2674151e+08 0.085333298 0.025963932 -41.030303 44.629623 6633.1597 8.8714675e+08 0.084342855 0.026180135 -41.102235 44.539706 6634.9929 8.4677107e+08 0.083243053 0.026399269 -41.174168 44.449789 6636.8261 8.1268138e+08 0.081928319 0.026228953 -41.243297 44.357066 6638.6593 7.8123911e+08 0.081041168 0.025642920 -41.311635 44.263552 6640.4925 7.5277118e+08 0.081399018 0.025210399 -41.379972 44.170046 6642.3256 7.1827490e+08 0.081334802 0.025165022 -41.448309 44.080118 6644.1588 6.8348395e+08 0.080408117 0.025360773 -41.516646 43.990201 6645.9920 6.5477151e+08 0.079519216 0.025916413 -41.584983 43.899495 6647.8252 6.2842799e+08 0.078649704 0.026872262 -41.653319 43.805982 6649.6584 6.0268028e+08 0.077791396 0.026726101 -41.721656 43.712468 6651.4916 5.7410309e+08 0.077321836 0.026860907 -41.789993 43.620534 6653.3248 5.4797309e+08 0.076876793 0.027691489 -41.858331 43.530617 6655.1580 5.2671204e+08 0.075652749 0.027675495 -41.926669 43.440700 6656.9912 5.0632751e+08 0.073980034 0.028893364 -41.995006 43.348414 6658.8244 4.8064039e+08 0.072808163 0.031523103 -42.063342 43.254901 6660.6576 4.6082380e+08 0.071908343 0.032223682 -42.131679 43.161388 6662.4907 4.3760401e+08 0.071058247 0.032768935 -42.196857 43.067873 6664.3239 4.2272362e+08 0.070236885 0.031020826 -42.261598 42.974358 6666.1571 4.0723923e+08 0.070424386 0.026939213 -42.326692 42.881194 6667.9903 3.9167240e+08 0.069961507 0.027467218 -42.395038 42.791263 6669.8235 3.7768609e+08 0.069488437 0.027509905 -42.463385 42.701333 6671.6567 3.5591247e+08 0.069537192 0.026874707 -42.530585 42.610263 6673.4899 3.3426576e+08 0.069242626 0.028191879 -42.595325 42.516750 6675.3231 3.1393066e+08 0.067883424 0.030417168 -42.660066 42.423237 6677.1563 2.9875868e+08 0.066338685 0.032136067 -42.722873 42.331657 6678.9895 2.8826010e+08 0.065834756 0.030274822 -42.784017 42.241740 6680.8226 2.8081524e+08 0.066827819 0.029619061 -42.845161 42.151823 6682.6558 2.6926932e+08 0.067452362 0.030925629 -42.909029 42.059182 6684.4890 2.6147548e+08 0.067441038 0.032678908 -42.973769 41.965667 6686.3222 2.4962040e+08 0.066671586 0.033948557 -43.038511 41.872151 6688.1554 2.3917877e+08 0.064572785 0.033821064 -43.108271 41.769601 6689.9886 2.3022345e+08 0.063000608 0.033126125 -43.178151 41.666835 6691.8218 2.1606658e+08 0.062156434 0.032807374 -43.245233 41.569105 6693.6550 2.0624172e+08 0.061409932 0.031379390 -43.309974 41.475592 6695.4882 2.0031436e+08 0.061185790 0.029769802 -43.374714 41.382079 6697.3214 1.9303148e+08 0.060660027 0.030131934 -43.436707 41.288565 6699.1546 1.9077200e+08 0.059491258 0.031447824 -43.497852 41.195050 6700.9877 1.8137292e+08 0.058044187 0.031400355 -43.558996 41.101539 6702.8209 1.7060689e+08 0.057872626 0.033532250 -43.620139 41.011560 6704.6541 1.6388081e+08 0.058126569 0.036498763 -43.681282 40.921643 6706.4873 1.5717975e+08 0.058010598 0.039294538 -43.742425 40.830995 6708.3205 1.5847535e+08 0.057669106 0.040392597 -43.803570 40.737481 6710.1537 1.5283889e+08 0.056647048 0.040526579 -43.864715 40.643967 6711.9869 1.4408910e+08 0.054868379 0.041815039 -43.927815 40.546542 6713.8201 1.3356470e+08 0.053147694 0.046652664 -43.993584 40.443777 6715.6533 1.2521805e+08 0.051748227 0.048046731 -44.059341 40.341027 6717.4865 1.2127666e+08 0.049991065 0.049844179 -44.116981 40.247408 6719.3196 1.2071902e+08 0.048266462 0.051066150 -44.174528 40.153895 6721.1528 1.1445792e+08 0.048687346 0.050349950 -44.232831 40.061134 6722.9860 1.0873640e+08 0.047791781 0.049386216 -44.293984 39.971203 6724.8192 1.0302480e+08 0.044208984 0.043085655 -44.355136 39.881273 6726.6524 1.0042682e+08 0.042362989 0.040957252 -44.414738 39.789801 6728.4856 1.0013719e+08 0.042051015 0.040316354 -44.472285 39.696287 6730.3188 95195157. 0.040699228 0.040816003 -44.529832 39.602772 6732.1520 90960257. 0.039307500 0.043768188 -44.592720 39.503249 6733.9852 86368473. 0.038369963 0.049273091 -44.658489 39.400484 6735.8184 84025112. 0.039834320 0.050162184 -44.722476 39.299725 6737.6516 79740637. 0.040961747 0.056211102 -44.780023 39.206211 6739.4847 74643376. 0.041069028 0.063419785 -44.837570 39.112698 6741.3179 74911442. 0.039776720 0.066665455 -44.893547 39.020755 6743.1511 74488457. 0.036482579 0.072066917 -44.947498 38.930838 6744.9843 73615945. 0.033633285 0.078554754 -45.001449 38.840921 6746.8175 70846732. 0.029534900 0.069482873 -45.063154 38.739876 6748.6507 65619780. 0.028365997 0.070440228 -45.128923 38.633000 6750.4839 62349238. 0.024663276 0.072830385 -45.192052 38.529913 6752.3171 60189124. 0.019539774 0.073767560 -45.246003 38.439996 6754.1503 57192309. 0.0034780041 0.075971824 -45.299954 38.350079 6755.9835 54866254. 0.013515044 0.074174162 -45.357319 38.252648 6757.8166 52020667. 0.040602418 0.074261749 -45.418978 38.145773