# # 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 = 42.032880 km # Date (UTC) = 2015-12-05T10:04:33.115 # Date (julian) = 2457361.91982772 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.3380 7.1188575e+10 0.042273922 0.032385132 -28.457060 54.727504 6502.1271 6.6606797e+10 0.049771919 0.032924631 -28.560023 54.655740 6503.9162 6.2630405e+10 0.057653278 0.033464131 -28.662987 54.583977 6505.7053 5.8890687e+10 0.065877719 0.034003630 -28.765951 54.512214 6507.4944 5.5918810e+10 0.074602231 0.034543129 -28.868915 54.440452 6509.2835 5.2491058e+10 0.083499403 0.035082628 -28.972055 54.368520 6511.0726 4.9307896e+10 0.092754549 0.035622127 -29.084376 54.287791 6512.8617 4.5845972e+10 0.10217307 0.036161626 -29.196703 54.207057 6514.6508 4.2347900e+10 0.11180067 0.036701125 -29.306388 54.127841 6516.4399 3.9419765e+10 0.12184924 0.037240624 -29.403124 54.056069 6518.2290 3.6772707e+10 0.13220864 0.037780123 -29.499861 53.984297 6520.0181 3.4533800e+10 0.14291679 0.038319623 -29.596597 53.912525 6521.8072 3.2466009e+10 0.15383878 0.038859122 -29.693321 53.840762 6523.5963 3.0546281e+10 0.16030284 0.039326912 -29.790044 53.769000 6525.3854 2.8743993e+10 0.16635110 0.039738226 -29.886767 53.697237 6527.1745 2.6953481e+10 0.17165537 0.040843186 -29.992679 53.615990 6528.9636 2.5074397e+10 0.17471026 0.042206940 -30.101494 53.531745 6530.7527 2.3250294e+10 0.17787316 0.044882522 -30.210310 53.447500 6532.5418 2.1602013e+10 0.18082970 0.047136846 -30.305268 53.374626 6534.3309 2.0203791e+10 0.18102060 0.048037136 -30.398872 53.302864 6536.1200 1.9048682e+10 0.17938510 0.047897913 -30.492476 53.231101 6537.9092 1.7914820e+10 0.17947231 0.049113850 -30.586079 53.159339 6539.6983 1.6806935e+10 0.17853251 0.050488847 -30.679682 53.087576 6541.4874 1.5783372e+10 0.17624843 0.051168483 -30.773286 53.015814 6543.2765 1.4844325e+10 0.17444355 0.051454451 -30.865332 52.942483 6545.0656 1.4002842e+10 0.17311523 0.052456154 -30.955828 52.867592 6546.8547 1.3221636e+10 0.17107381 0.053167777 -31.046323 52.792700 6548.6438 1.2377985e+10 0.16904650 0.053859897 -31.140167 52.716076 6550.4329 1.1481074e+10 0.16775928 0.055093746 -31.241963 52.635340 6552.2220 1.0586426e+10 0.16637641 0.055530896 -31.343758 52.554605 6554.0111 9.7844981e+09 0.16407381 0.054832613 -31.440491 52.476489 6555.8002 9.1379650e+09 0.16215729 0.054181025 -31.530975 52.401607 6557.5893 8.5774281e+09 0.16042503 0.053496745 -31.621458 52.326725 6559.3784 8.0620281e+09 0.15780542 0.052344473 -31.711185 52.252599 6561.1675 7.5675052e+09 0.15492230 0.051290148 -31.798548 52.180836 6562.9566 7.1378755e+09 0.15252921 0.049969677 -31.885911 52.109074 6564.7457 6.7240800e+09 0.14989579 0.048433651 -31.973683 52.036843 6566.5348 6.3042712e+09 0.14725524 0.046880354 -32.071968 51.952599 6568.3239 5.8675131e+09 0.14511957 0.045473927 -32.170254 51.868354 6570.1130 5.4423101e+09 0.14324826 0.044870702 -32.265892 51.785873 6571.9021 5.0910068e+09 0.14093208 0.044256894 -32.350147 51.710981 6573.6912 4.8089428e+09 0.13825233 0.043102809 -32.434401 51.636089 6575.4803 4.5677706e+09 0.13618038 0.041892812 -32.518655 51.561197 6577.2694 4.3469684e+09 0.13409398 0.039797201 -32.605969 51.489384 6579.0585 4.1284549e+09 0.13152813 0.037038333 -32.693332 51.417622 6580.8476 3.9164462e+09 0.12955919 0.035737438 -32.780695 51.345859 6582.6367 3.7099550e+09 0.12797292 0.035120527 -32.871098 51.264373 6584.4258 3.4990159e+09 0.12608319 0.034283553 -32.962363 51.180128 6586.2149 3.3102708e+09 0.12414608 0.033168518 -33.053629 51.095883 6588.0040 3.1273562e+09 0.12281508 0.033378588 -33.138362 51.020346 6589.7931 2.9707730e+09 0.12079514 0.031472493 -33.222606 50.945462 6591.5822 2.8106754e+09 0.11840954 0.028544936 -33.306849 50.870579 6593.3713 2.6596544e+09 0.11633877 0.026756998 -33.388837 50.795689 6595.1604 2.5588489e+09 0.11385529 0.025640208 -33.469970 50.720797 6596.9495 2.4190044e+09 0.11140863 0.025722957 -33.551103 50.645905 6598.7386 2.3034914e+09 0.10939327 0.025054515 -33.632231 50.572643 6600.5277 2.1749485e+09 0.10896474 0.026074807 -33.713353 50.500880 6602.3168 2.0462937e+09 0.10804609 0.027246254 -33.794476 50.429117 6604.1059 1.9806659e+09 0.10615294 0.026134182 -33.877691 50.353416 6605.8950 1.8975593e+09 0.10539069 0.027415915 -33.965446 50.269171 6607.6841 1.8223398e+09 0.10312605 0.024356061 -34.053201 50.184926 6609.4733 1.7251539e+09 0.10009685 0.023846509 -34.137860 50.105051 6611.2624 1.6059700e+09 0.097485241 0.024791152 -34.218984 50.030168 6613.0515 1.5083061e+09 0.096631980 0.023592470 -34.300108 49.955286 6614.8406 1.4322110e+09 0.095665942 0.023361381 -34.382048 49.877954 6616.6297 1.3917220e+09 0.094425331 0.023381124 -34.466292 49.793709 6618.4188 1.3537965e+09 0.093934126 0.024087011 -34.550535 49.709464 6620.2079 1.3014618e+09 0.093466260 0.024834182 -34.632207 49.629080 6621.9970 1.2136504e+09 0.092717055 0.024758998 -34.710220 49.554186 6623.7861 1.0664079e+09 0.091931235 0.024783052 -34.788233 49.479293 6625.5752 9.6025822e+08 0.091717521 0.026083958 -34.865595 49.404402 6627.3643 9.2140837e+08 0.090110020 0.025457524 -34.940478 49.329520 6629.1534 9.4266469e+08 0.088711486 0.026081374 -35.015361 49.254638 6630.9425 9.7007487e+08 0.086774353 0.025930624 -35.090280 49.179720 6632.7316 9.4663128e+08 0.085540388 0.026120068 -35.174520 49.095481 6634.5207 8.8258362e+08 0.084430651 0.026364824 -35.258765 49.011236 6636.3098 8.1987455e+08 0.083291161 0.026429450 -35.341564 48.928436 6638.0989 7.3729392e+08 0.082901754 0.025667334 -35.416447 48.853554 6639.8880 6.7124678e+08 0.083102426 0.025310686 -35.491329 48.778672 6641.6771 6.4408626e+08 0.083201473 0.025150600 -35.566211 48.703789 6643.4662 6.2760333e+08 0.082353260 0.025263008 -35.646649 48.620018 6645.2553 6.3452468e+08 0.081132184 0.025571283 -35.727383 48.535773 6647.0444 6.0429341e+08 0.080058439 0.026461158 -35.807216 48.452468 6648.8335 5.7711163e+08 0.078913016 0.027522235 -35.878988 48.377577 6650.6226 5.5348120e+08 0.078486299 0.026397769 -35.950760 48.302685 6652.4117 5.3055355e+08 0.078037231 0.027363799 -36.022532 48.227793 6654.2008 5.1477289e+08 0.077299152 0.027950678 -36.102334 48.144521 6655.9899 4.8151344e+08 0.076007178 0.028019251 -36.183068 48.060276 6657.7790 4.4803288e+08 0.075111659 0.029804746 -36.263379 47.976472 6659.5681 4.2643565e+08 0.073994497 0.031716088 -36.335143 47.901590 6661.3572 4.0842024e+08 0.072916997 0.032716890 -36.406906 47.826708 6663.1463 3.9870752e+08 0.071958403 0.032442663 -36.478670 47.751826 6664.9354 3.8612842e+08 0.071491088 0.028783402 -36.555031 47.669059 6666.7245 3.6216800e+08 0.071326910 0.027049779 -36.632255 47.584814 6668.5136 3.4449217e+08 0.070488556 0.027925302 -36.709478 47.500568 6670.3027 3.2884286e+08 0.070335001 0.027188381 -36.778179 47.425622 6672.0918 3.1677730e+08 0.070044510 0.026932829 -36.846822 47.350739 6673.8809 3.0699914e+08 0.069294868 0.028776726 -36.915465 47.275855 6675.6700 2.9320649e+08 0.067457204 0.031081732 -36.990872 47.193594 6677.4591 2.7681420e+08 0.066147267 0.031705497 -37.068096 47.109350 6679.2482 2.6893829e+08 0.065605985 0.030062632 -37.145321 47.025107 6681.0373 2.6191015e+08 0.066320568 0.029686012 -37.211560 46.949647 6682.8265 2.5209345e+08 0.066693291 0.031055983 -37.277091 46.874754 6684.6156 2.4416402e+08 0.066431980 0.032685329 -37.342622 46.799861 6686.4047 2.3184008e+08 0.065353071 0.033996519 -37.416745 46.718096 6688.1938 2.1403734e+08 0.063127407 0.033829916 -37.493970 46.633852 6689.9829 2.0102464e+08 0.061434140 0.033131292 -37.571195 46.549608 6691.7720 1.8963990e+08 0.060379158 0.032819130 -37.638052 46.473657 6693.5611 1.8563217e+08 0.059530060 0.031411608 -37.703574 46.398774 6695.3502 1.8485877e+08 0.059236746 0.029795152 -37.769096 46.323891 6697.1393 1.8195239e+08 0.058708692 0.030108890 -37.840196 46.242634 6698.9284 1.7521409e+08 0.057595768 0.031492116 -37.913909 46.158390 6700.7175 1.6759072e+08 0.056113707 0.031199890 -37.987623 46.074147 6702.5066 1.6270185e+08 0.055386858 0.033281235 -38.058416 45.986982 6704.2957 1.5355137e+08 0.055569776 0.036322748 -38.128620 45.899227 6706.0848 1.5188162e+08 0.055552621 0.038593963 -38.198824 45.811473 6707.8739 1.4572797e+08 0.055289517 0.040061643 -38.261357 45.736373 6709.6630 1.4021676e+08 0.054428330 0.040710851 -38.323760 45.661490 6711.4521 1.3757587e+08 0.052844632 0.041206588 -38.386163 45.586606 6713.2412 1.3226067e+08 0.051241812 0.044558968 -38.457377 45.504428 6715.0303 1.2843824e+08 0.049725669 0.047409574 -38.531101 45.420172 6716.8194 1.2127783e+08 0.048065341 0.049608258 -38.604826 45.335916 6718.6085 1.1354472e+08 0.046219121 0.050760107 -38.672012 45.251670 6720.3976 1.0859693e+08 0.046147144 0.050373697 -38.738705 45.167425 6722.1867 1.0154390e+08 0.046051795 0.050374388 -38.805683 45.083180 6723.9758 98571531. 0.044453836 0.049913169 -38.875886 44.998935 6725.7649 98969838. 0.041119034 0.041098217 -38.946090 44.914690 6727.5540 92344105. 0.040328685 0.040222283 -39.016294 44.830446 6729.3431 85383964. 0.039818143 0.040816732 -39.086498 44.746202 6731.1322 77634631. 0.038370626 0.042013163 -39.156702 44.661958 6732.9213 73060036. 0.037544836 0.043909821 -39.222720 44.581302 6734.7104 69992965. 0.037542699 0.049310855 -39.282002 44.506418 6736.4995 66483059. 0.039096626 0.052243490 -39.341284 44.431535 6738.2886 64367494. 0.040041512 0.058910118 -39.401887 44.354357 6740.0777 64027954. 0.039746113 0.064183150 -39.468582 44.266602 6741.8668 65785510. 0.037799389 0.068230948 -39.535276 44.178848 6743.6559 63245535. 0.033240700 0.075472358 -39.601970 44.092250 6745.4450 58300129. 0.029995762 0.078753976 -39.668663 44.008006 6747.2341 53744879. 0.021435306 0.067280556 -39.735356 43.923763 6749.0232 50150232. -0.0019388832 0.072271570 -39.800367 43.839512 6750.8123 49718032. 0.013802757 0.073391242 -39.863560 43.755255 6752.6014 52311351. 0.049761843 0.073438490 -39.926753 43.670997