# # 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 = 42.505529 km # Date (UTC) = 2012-12-30T09:36:36.274 # Date (julian) = 2456291.90041984 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6506.1118 5.8545663e+10 0.070457375 0.034126207 -27.239594 46.485223 6507.9379 5.4961748e+10 0.079023044 0.034676849 -27.321996 46.395656 6509.7639 5.0738895e+10 0.087586059 0.035227490 -27.404397 46.306089 6511.5900 4.7017563e+10 0.096379801 0.035778131 -27.478274 46.222821 6513.4160 4.4054299e+10 0.10555749 0.036328772 -27.551528 46.140012 6515.2421 4.1600735e+10 0.11509782 0.036879414 -27.624782 46.057203 6517.0681 3.9093500e+10 0.12481121 0.037430055 -27.705284 45.969040 6518.8942 3.6345814e+10 0.13457771 0.037980696 -27.787686 45.879473 6520.7202 3.3665030e+10 0.14448186 0.038531338 -27.870023 45.789977 6522.5463 3.1319943e+10 0.15312832 0.039060300 -27.943323 45.710302 6524.3723 2.9431073e+10 0.15856698 0.039559231 -28.016568 45.630689 6526.1984 2.7807280e+10 0.16257990 0.039876066 -28.089812 45.551075 6528.0244 2.6098202e+10 0.16748892 0.041461866 -28.167856 45.462892 6529.8505 2.4269918e+10 0.17138428 0.043590533 -28.246675 45.373325 6531.6765 2.2445059e+10 0.17380508 0.046213388 -28.324883 45.284452 6533.5026 2.0852922e+10 0.17572115 0.047733173 -28.394944 45.204838 6535.3286 1.9607883e+10 0.17667693 0.048081733 -28.465004 45.125224 6537.1547 1.8550751e+10 0.17730038 0.048758158 -28.535065 45.045610 6538.9807 1.7473483e+10 0.17661265 0.049634254 -28.609936 44.953413 6540.8068 1.6338365e+10 0.17581456 0.051235256 -28.685172 44.860263 6542.6329 1.5174720e+10 0.17426074 0.051242504 -28.759693 44.768983 6544.4589 1.4177126e+10 0.17250578 0.052016620 -28.829763 44.689359 6546.2850 1.3324413e+10 0.17043513 0.052699000 -28.899832 44.609735 6548.1110 1.2563728e+10 0.16925713 0.053700797 -28.969880 44.530111 6549.9371 1.1851165e+10 0.16812341 0.054921221 -29.036782 44.450496 6551.7631 1.1201223e+10 0.16641355 0.055503616 -29.103658 44.370883 6553.5892 1.0614731e+10 0.16449594 0.055038900 -29.170534 44.291269 6555.4152 1.0026337e+10 0.16286207 0.054504480 -29.244586 44.203111 6557.2413 9.3943338e+09 0.16113632 0.053714877 -29.319822 44.113544 6559.0673 8.7692340e+09 0.15865273 0.052379583 -29.394496 44.024432 6560.8934 8.2331296e+09 0.15623431 0.051468815 -29.461372 43.941634 6562.7194 7.8094666e+09 0.15415335 0.050195339 -29.528248 43.858836 6564.5455 7.4339507e+09 0.15160397 0.048524385 -29.595124 43.776038 6566.3715 7.0334028e+09 0.14926386 0.046972708 -29.666429 43.686965 6568.1976 6.5988064e+09 0.14751953 0.045590032 -29.738082 43.597398 6570.0236 6.1613746e+09 0.14597461 0.044907716 -29.808654 43.509182 6571.8497 5.7845971e+09 0.14388517 0.044271208 -29.872354 43.429557 6573.6757 5.4582995e+09 0.14126284 0.043115213 -29.936054 43.349933 6575.5018 5.1807983e+09 0.13875756 0.041871247 -29.999753 43.270309 6577.3279 4.9338791e+09 0.13583038 0.039705400 -30.063445 43.190695 6579.1539 4.7117652e+09 0.13242456 0.036985891 -30.127136 43.111081 6580.9800 4.5070161e+09 0.12973877 0.035615134 -30.190828 43.031467 6582.8060 4.2945494e+09 0.12797219 0.035074457 -30.261334 42.940266 6584.6321 4.0595556e+09 0.12620128 0.034171204 -30.332987 42.847116 6586.4581 3.8129242e+09 0.12449324 0.033165374 -30.404125 42.754842 6588.2842 3.5906920e+09 0.12317673 0.033285033 -30.467816 42.675228 6590.1102 3.4103328e+09 0.12135044 0.030857047 -30.531508 42.595614 6591.9363 3.2548648e+09 0.11904381 0.028145439 -30.595199 42.516000 6593.7623 3.0995714e+09 0.11690575 0.026393492 -30.662940 42.427183 6595.5884 2.9253673e+09 0.11461459 0.025684587 -30.731011 42.337617 6597.4144 2.7484534e+09 0.11270029 0.025591950 -30.798074 42.248951 6599.2405 2.6000406e+09 0.11113508 0.024944194 -30.858588 42.166142 6601.0665 2.4793837e+09 0.11081092 0.027077022 -30.919102 42.083333 6602.8926 2.3738250e+09 0.10961366 0.026754937 -30.979651 42.000493 6604.7186 2.2638585e+09 0.10842923 0.026497979 -31.047640 41.911000 6606.5447 2.1394657e+09 0.10737148 0.026525173 -31.115711 41.821433 6608.3707 2.0152818e+09 0.10487443 0.023722569 -31.182250 41.733881 6610.1968 1.9072055e+09 0.10208669 0.024191011 -31.242757 41.654267 6612.0228 1.8166624e+09 0.099713778 0.024303681 -31.303264 41.574653 6613.8489 1.7388979e+09 0.098418427 0.023885053 -31.364242 41.494419 6615.6750 1.6570501e+09 0.096715535 0.023272298 -31.432312 41.404852 6617.5010 1.5725534e+09 0.095503832 0.023605356 -31.500383 41.315285 6619.3271 1.4848043e+09 0.094484122 0.024604828 -31.565539 41.227554 6621.1531 1.4043381e+09 0.093465939 0.025038698 -31.622861 41.144756 6622.9792 1.3387532e+09 0.092124354 0.024497372 -31.680183 41.061958 6624.8052 1.2792774e+09 0.090918276 0.025293337 -31.738445 40.978272 6626.6313 1.2240130e+09 0.089480033 0.025786611 -31.802943 40.888691 6628.4573 1.1625999e+09 0.088575361 0.025888771 -31.867441 40.799111 6630.2834 1.1028206e+09 0.087522094 0.025929000 -31.929498 40.712921 6632.1094 1.0506232e+09 0.086204767 0.026045466 -31.986820 40.633307 6633.9355 1.0060322e+09 0.084989476 0.026315578 -32.044142 40.553693 6635.7615 9.6532564e+08 0.083796515 0.026513990 -32.102897 40.472089 6637.5876 9.2157224e+08 0.082866244 0.025873632 -32.167386 40.382522 6639.4136 8.7317719e+08 0.082334738 0.025480233 -32.231874 40.292955 6641.2397 8.2496241e+08 0.082845377 0.025149114 -32.293433 40.206155 6643.0657 7.8310886e+08 0.082453906 0.025202544 -32.350755 40.123355 6644.8918 7.5062248e+08 0.081518837 0.025439989 -32.408077 40.040556 6646.7178 7.2172331e+08 0.080374387 0.026291727 -32.466362 39.955938 6648.5439 6.8821881e+08 0.079353682 0.027328371 -32.527267 39.866371 6650.3699 6.5690364e+08 0.078836693 0.026339929 -32.588172 39.776804 6652.1960 6.2418404e+08 0.078303492 0.027304449 -32.647370 39.691984 6654.0221 5.9661516e+08 0.077547751 0.028026830 -32.704699 39.612360 6655.8481 5.7127662e+08 0.075911361 0.027960655 -32.762029 39.532736 6657.6742 5.4905306e+08 0.074440826 0.029683114 -32.820566 39.449754 6659.5002 5.2584979e+08 0.072987515 0.031730254 -32.881473 39.360187 6661.3263 5.0153456e+08 0.071735484 0.032701123 -32.942379 39.270620 6663.1523 4.7739307e+08 0.070805401 0.032441002 -33.003285 39.181053 6664.9784 4.5213915e+08 0.070500903 0.028626277 -33.064190 39.091485 6666.8044 4.3172481e+08 0.070329271 0.027065347 -33.125095 39.001918 6668.6305 4.0850714e+08 0.069540709 0.028028699 -33.180889 38.917464 6670.4565 3.8893935e+08 0.069591690 0.027117131 -33.235027 38.834666 6672.2826 3.7546322e+08 0.069395901 0.027043387 -33.289165 38.751868 6674.1086 3.6264962e+08 0.068649322 0.029046429 -33.345262 38.664906 6675.9347 3.4971895e+08 0.066726948 0.031588620 -33.402585 38.575339 6677.7607 3.3670033e+08 0.065787444 0.031276752 -33.459908 38.485773 6679.5868 3.2050750e+08 0.065689710 0.029782875 -33.520182 38.396206 6681.4128 3.0460076e+08 0.066490324 0.029974084 -33.581087 38.306639 6683.2389 2.8893143e+08 0.066953614 0.031538683 -33.641666 38.217397 6685.0649 2.7667517e+08 0.066777459 0.032773437 -33.692619 38.137783 6686.8910 2.6729496e+08 0.065296080 0.034279481 -33.743572 38.058169 6688.7171 2.5972239e+08 0.062873500 0.033950710 -33.794525 37.978555 6690.5431 2.4779492e+08 0.061846427 0.033053623 -33.851171 37.890045 6692.3692 2.3896413e+08 0.060971603 0.032336650 -33.908502 37.800465 6694.1952 2.3074800e+08 0.060119047 0.030987431 -33.965833 37.710521 6696.0213 2.2173488e+08 0.059990661 0.029684619 -34.023156 37.617371 6697.8473 2.1356166e+08 0.059271787 0.030198494 -34.080478 37.524220 6699.6734 2.0078415e+08 0.057948009 0.030969108 -34.137801 37.432183 6701.4994 1.8981798e+08 0.056438427 0.032142235 -34.195124 37.342616 6703.3255 1.8117988e+08 0.056591182 0.034489667 -34.252447 37.253049 6705.1515 1.7327318e+08 0.056877066 0.036937985 -34.306461 37.168651 6706.9776 1.6883958e+08 0.056707883 0.040147799 -34.357414 37.089038 6708.8036 1.6380470e+08 0.056456030 0.040918702 -34.408367 37.009424 6710.6297 1.5841962e+08 0.055361092 0.040619747 -34.460377 36.926036 6712.4557 1.5284089e+08 0.053844540 0.042676104 -34.514118 36.836468 6714.2818 1.4463990e+08 0.052294608 0.047324593 -34.567859 36.746901 6716.1078 1.3921525e+08 0.051125675 0.048560196 -34.623706 36.657334 6717.9339 1.3166177e+08 0.049710547 0.049816503 -34.681029 36.567767 6719.7599 1.2941559e+08 0.048836561 0.050647837 -34.738352 36.478200 6721.5860 1.2553986e+08 0.049422236 0.050480462 -34.792820 36.388633 6723.4120 1.1972963e+08 0.048517506 0.049598750 -34.846561 36.299066 6725.2381 1.1505825e+08 0.045140581 0.041427290 -34.900302 36.209499 6727.0642 1.1008990e+08 0.044236832 0.040874916 -34.954049 36.119919 6728.8902 1.0810252e+08 0.044474756 0.040889813 -35.007796 36.030338 6730.7163 1.0357132e+08 0.043449043 0.041360980 -35.061542 35.940761 6732.5423 99342748. 0.042778826 0.043840047 -35.115283 35.851193 6734.3684 93975122. 0.042808545 0.049331436 -35.169024 35.761626 6736.1944 87577699. 0.044959976 0.051090007 -35.222765 35.672058 6738.0205 83635763. 0.046607152 0.057433778 -35.276504 35.582492 6739.8465 76428543. 0.047281876 0.063862532 -35.330243 35.492925 6741.6726 71322256. 0.046391785 0.067676910 -35.383984 35.403358 6743.4986 69322504. 0.043307054 0.074411156 -35.437724 35.313791 6745.3247 68015373. 0.041929173 0.078703379 -35.491465 35.224224 6747.1507 68740953. 0.037917471 0.067309270 -35.545206 35.134657 6748.9768 66209815. 0.038977304 0.072155789 -35.598947 35.045090 6750.8028 62717917. 0.037482386 0.073375005 -35.652508 34.955523 6752.6289 60155216. 0.036646089 0.073406735 -35.702665 34.865956 6754.4549 62292063. 0.037555763 0.075481870 -35.752823 34.776389 6756.2810 59607998. 0.052231769 0.074889946 -35.803907 34.686822 6758.1070 57531855. 0.037653357 0.073931685 -35.857647 34.597255 6759.9331 52974578. 0.0067300456 0.076045127 -35.911386 34.507687