# # 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 = 37.704462 km # Date (UTC) = 2010-12-03T09:15:28.191 # Date (julian) = 2455533.88574296 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6488.9723 4.4872735e+11 0.021193476 0.028957830 -22.539528 50.373400 6490.9868 4.0429268e+11 0.027864050 0.029565309 -22.646245 50.274588 6493.0014 3.4227990e+11 0.034752918 0.030172789 -22.752963 50.175776 6495.0159 2.8451705e+11 0.041464366 0.030780268 -22.856359 50.076963 6497.0304 2.3317042e+11 0.047873938 0.031387747 -22.959124 49.978151 6499.0450 1.9010406e+11 0.053780814 0.031995227 -23.061888 49.879339 6501.0595 1.5773534e+11 0.059025689 0.032602706 -23.164653 49.780526 6503.0741 1.3155218e+11 0.063702853 0.033210186 -23.267418 49.681714 6505.0886 1.1205563e+11 0.068098334 0.033817665 -23.367099 49.582902 6507.1031 9.6637785e+10 0.072704630 0.034425144 -23.465911 49.484089 6509.1177 8.4131924e+10 0.077997982 0.035032624 -23.565713 49.384288 6511.1322 7.3420359e+10 0.084372007 0.035640103 -23.668477 49.281524 6513.1468 6.4511431e+10 0.092303872 0.036247582 -23.771241 49.178760 6515.1613 5.7042246e+10 0.10211545 0.036855062 -23.871159 49.078842 6517.1758 5.0592525e+10 0.11390876 0.037462541 -23.969971 48.980029 6519.1904 4.5043094e+10 0.12766986 0.038070021 -24.068033 48.881217 6521.2049 4.0316589e+10 0.14315514 0.038677500 -24.162893 48.782405 6523.2195 3.6244132e+10 0.15630322 0.039233508 -24.257753 48.683593 6525.2340 3.2965326e+10 0.16666486 0.039755508 -24.345663 48.592020 6527.2486 3.0379655e+10 0.17362360 0.040896922 -24.429992 48.504177 6529.2631 2.8230655e+10 0.17676131 0.042654869 -24.514322 48.416334 6531.2776 2.6213457e+10 0.17807697 0.045632778 -24.607224 48.316343 6533.2922 2.4118849e+10 0.17940121 0.047643752 -24.702084 48.213577 6535.3067 2.2098749e+10 0.17888141 0.048091245 -24.796943 48.111934 6537.3213 2.0227735e+10 0.17822019 0.048836684 -24.891803 48.013122 6539.3358 1.8444802e+10 0.17706414 0.050050101 -24.986663 47.914310 6541.3503 1.6852412e+10 0.17533632 0.051212917 -25.081522 47.815497 6543.3649 1.5363111e+10 0.17363207 0.051477657 -25.176382 47.716685 6545.3794 1.4026450e+10 0.17212333 0.052458966 -25.270357 47.616987 6547.3940 1.2810030e+10 0.17066912 0.053437180 -25.361264 47.514223 6549.4085 1.1681022e+10 0.16893265 0.054382574 -25.452171 47.411459 6551.4230 1.0743257e+10 0.16738168 0.055384245 -25.536069 47.319056 6553.4376 9.9840438e+09 0.16562615 0.055115101 -25.616874 47.231225 6555.4521 9.3571472e+09 0.16347919 0.054473475 -25.697679 47.143393 6557.4667 8.7783853e+09 0.16106704 0.053573602 -25.783696 47.042904 6559.4812 8.1845230e+09 0.15792044 0.052332867 -25.870651 46.940139 6561.4957 7.5850731e+09 0.15443776 0.051128390 -25.957611 46.838623 6563.5103 7.0084650e+09 0.15089091 0.049338086 -26.044578 46.739796 6565.5248 6.4601070e+09 0.14751499 0.047722452 -26.131546 46.640969 6567.5394 5.9673374e+09 0.14424735 0.046161141 -26.218504 46.542154 6569.5539 5.5053708e+09 0.14100533 0.044888475 -26.305459 46.443341 6571.5684 5.0897446e+09 0.13821843 0.044348021 -26.392414 46.343511 6573.5830 4.7020551e+09 0.13551678 0.043189649 -26.479369 46.240747 6575.5975 4.3382612e+09 0.13338011 0.041775200 -26.566323 46.137983 6577.6121 4.0256585e+09 0.13115231 0.039258962 -26.646246 46.046085 6579.6266 3.7606380e+09 0.12859228 0.036726023 -26.723538 45.958253 6581.6411 3.5393319e+09 0.12619239 0.035402460 -26.800829 45.870421 6583.6557 3.3333882e+09 0.12397182 0.034689786 -26.883155 45.769427 6585.6702 3.1277477e+09 0.12180568 0.033434939 -26.966157 45.666662 6587.6848 2.9320113e+09 0.11998377 0.033310088 -27.049160 45.565285 6589.6993 2.7498881e+09 0.11770360 0.031658607 -27.132162 45.466473 6591.7139 2.5739523e+09 0.11495726 0.028396411 -27.215164 45.367660 6593.7284 2.3951494e+09 0.11245081 0.026425036 -27.298166 45.265602 6595.7429 2.2207702e+09 0.10961934 0.025700615 -27.381169 45.162838 6597.7575 2.0650262e+09 0.10734496 0.025483697 -27.460465 45.064419 6599.7720 1.9331885e+09 0.10588511 0.024976163 -27.530739 44.976576 6601.7866 1.8358548e+09 0.10479436 0.027416113 -27.601014 44.888732 6603.8011 1.7446779e+09 0.10268154 0.026189027 -27.676955 44.794246 6605.8156 1.6552992e+09 0.10158186 0.027349297 -27.759958 44.691482 6607.8302 1.5620794e+09 0.098958852 0.024067708 -27.842961 44.588718 6609.8447 1.4579551e+09 0.095550813 0.023956852 -27.922345 44.489570 6611.8593 1.3674592e+09 0.092500896 0.024410503 -28.001395 44.390758 6613.8738 1.2766534e+09 0.090982850 0.023894189 -28.078922 44.290423 6615.8883 1.1957522e+09 0.089155621 0.023278863 -28.154020 44.187657 6617.9029 1.1170080e+09 0.088494781 0.023738596 -28.229117 44.084892 6619.9174 1.0399099e+09 0.088121699 0.024747273 -28.307595 43.985506 6621.9320 9.6562018e+08 0.087407120 0.024780544 -28.386645 43.886694 6623.9465 9.0011705e+08 0.086007210 0.024842490 -28.461698 43.790309 6625.9610 8.5158586e+08 0.085318585 0.026544416 -28.528449 43.698964 6627.9756 8.0931671e+08 0.083929709 0.025693663 -28.595201 43.607620 6629.9901 7.7237152e+08 0.082876586 0.025930087 -28.667839 43.512701 6632.0047 7.2917052e+08 0.081446681 0.026032905 -28.746890 43.413889 6634.0192 6.8841570e+08 0.080281292 0.026328244 -28.825940 43.315077 6636.0337 6.4953151e+08 0.079120760 0.026536648 -28.901251 43.212500 6638.0483 6.1315120e+08 0.078406780 0.025669539 -28.976359 43.109719 6640.0628 5.7746295e+08 0.078510646 0.025262965 -29.049808 43.008600 6642.0774 5.4598032e+08 0.078704697 0.025154862 -29.120953 42.909788 6644.0919 5.1720846e+08 0.077810697 0.025353540 -29.192098 42.810975 6646.1064 4.8962784e+08 0.076979924 0.025975248 -29.266756 42.708650 6648.1210 4.6114389e+08 0.076177855 0.027045275 -29.341853 42.605886 6650.1355 4.3500174e+08 0.075595819 0.026286264 -29.415531 42.504540 6652.1501 4.1040471e+08 0.075131442 0.027291811 -29.486676 42.405728 6654.1646 3.8613882e+08 0.074467833 0.027966100 -29.557821 42.306916 6656.1792 3.6717552e+08 0.072725193 0.028180658 -29.622413 42.217204 6658.1937 3.4956569e+08 0.071344262 0.030404596 -29.685652 42.129373 6660.2082 3.3818889e+08 0.069972078 0.031815271 -29.748891 42.041541 6662.2228 3.2477311e+08 0.068675598 0.032919282 -29.819898 41.939037 6664.2373 3.0784581e+08 0.067715155 0.031337765 -29.891043 41.836271 6666.2519 2.8964138e+08 0.067906762 0.026957672 -29.962188 41.735294 6668.2664 2.7295806e+08 0.067183587 0.027706516 -30.033333 41.636481 6670.2809 2.5797927e+08 0.066819847 0.027198479 -30.104478 41.537669 6672.2955 2.4680059e+08 0.066411581 0.027050863 -30.175633 41.435198 6674.3100 2.3482511e+08 0.065259411 0.029216311 -30.246788 41.332418 6676.3246 2.2187710e+08 0.062870163 0.031922900 -30.316387 41.231197 6678.3391 2.1001706e+08 0.061707084 0.030709810 -30.383579 41.132385 6680.3536 1.9542861e+08 0.061745656 0.029517782 -30.450770 41.033573 6682.3682 1.8329083e+08 0.061852648 0.030705846 -30.521372 40.931350 6684.3827 1.7602731e+08 0.061295813 0.032673513 -30.592517 40.828584 6686.3973 1.6757232e+08 0.059681447 0.033992217 -30.662347 40.727134 6688.4118 1.5928035e+08 0.056473490 0.033880248 -30.729540 40.628321 6690.4263 1.5182137e+08 0.054250878 0.033067005 -30.796733 40.529508 6692.4409 1.4104016e+08 0.052372611 0.032253358 -30.863925 40.427524 6694.4554 1.3543211e+08 0.050750949 0.030622727 -30.931118 40.324760 6696.4700 1.2808677e+08 0.049488564 0.029871046 -30.997233 40.223073 6698.4845 1.2224963e+08 0.047551772 0.030882855 -31.060472 40.124261 6700.4990 1.1682150e+08 0.044988563 0.031037874 -31.123712 40.025449 6702.5136 1.0888661e+08 0.042792062 0.033286831 -31.189887 39.923703 6704.5281 1.0023611e+08 0.041569046 0.036436891 -31.257079 39.820939 6706.5427 92382364. 0.039827607 0.039390874 -31.323432 39.719014 6708.5572 87037044. 0.038096571 0.040650358 -31.386672 39.620201 6710.5717 85274712. 0.036024835 0.040608407 -31.449912 39.521388 6712.5863 84051152. 0.033440634 0.042918501 -31.513152 39.422576 6714.6008 78202980. 0.029542120 0.047348579 -31.576392 39.323764 6716.6154 75701909. 0.026170426 0.049307744 -31.640235 39.224347 6718.6299 70763195. 0.020882856 0.050793452 -31.707437 39.121566 6720.6445 69975868. 0.017755400 0.050345095 -31.774640 39.018785 6722.6590 68715693. 0.010007849 0.049790519 -31.836914 38.918475 6724.6735 63037312. -0.038001970 0.044302233 -31.896202 38.819663 6726.6881 61103479. -0.0063209291 0.040957573 -31.956692 38.719126 6730.7172 55620384. 0.080732369 0.041362209 -32.101243 38.484231