# # 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 = 44.796023 km # Date (UTC) = 2014-01-14T09:53:29.251 # Date (julian) = 2456671.91214411 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6491.8135 6.7273136e+10 0.018492524 0.029814605 -27.177192 51.680852 6493.5439 6.1171960e+10 0.022993578 0.030336400 -27.277143 51.587909 6495.2743 5.6694662e+10 0.027307761 0.030858196 -27.372203 51.503034 6497.0047 5.3057621e+10 0.031613382 0.031379991 -27.467263 51.418159 6498.7351 5.0183657e+10 0.036083827 0.031901786 -27.565528 51.324473 6500.4655 4.7440515e+10 0.040783774 0.032423581 -27.666410 51.223590 6502.1959 4.4619369e+10 0.045762122 0.032945376 -27.767292 51.122707 6503.9263 4.1986097e+10 0.051185639 0.033467172 -27.871950 51.025601 6505.6567 3.9543992e+10 0.057154095 0.033988967 -27.976713 50.928599 6507.3871 3.7399061e+10 0.063854025 0.034510762 -28.074946 50.835054 6509.1175 3.5615513e+10 0.071488501 0.035032557 -28.163215 50.746785 6510.8479 3.4192099e+10 0.080196009 0.035554353 -28.251485 50.658515 6512.5783 3.2634745e+10 0.089645622 0.036076148 -28.345434 50.566313 6514.3086 3.0871138e+10 0.099724996 0.036597943 -28.446316 50.469311 6516.0390 2.9006932e+10 0.11040719 0.037119738 -28.547199 50.372309 6517.7694 2.7263924e+10 0.12183668 0.037641533 -28.637069 50.282930 6519.4998 2.6129536e+10 0.13429301 0.038163329 -28.725339 50.194660 6521.2302 2.5098503e+10 0.14728300 0.038685124 -28.813609 50.106389 6522.9606 2.3986733e+10 0.15728841 0.039168797 -28.909979 50.006420 6524.6910 2.2661597e+10 0.16428946 0.039672440 -29.006981 49.905539 6526.4214 2.1313891e+10 0.16793315 0.040109865 -29.099735 49.810265 6528.1518 2.0189194e+10 0.17104534 0.041562893 -29.184610 49.725390 6529.8822 1.9285144e+10 0.17357286 0.043641011 -29.269485 49.640515 6531.6126 1.8402361e+10 0.17450014 0.046120277 -29.357698 49.549160 6533.3430 1.7392763e+10 0.17530865 0.047665334 -29.450820 49.448279 6535.0734 1.6330057e+10 0.17549068 0.048192477 -29.543942 49.347397 6536.8037 1.5357872e+10 0.17450525 0.048509631 -29.627429 49.256952 6538.5341 1.4594924e+10 0.17387450 0.049416777 -29.708909 49.168682 6540.2645 1.3913388e+10 0.17364138 0.050979072 -29.790389 49.080411 6541.9949 1.3201764e+10 0.17190902 0.051003885 -29.882138 48.981017 6543.7253 1.2424350e+10 0.17034450 0.051572255 -29.975261 48.880135 6545.4557 1.1645348e+10 0.16933125 0.052459650 -30.064835 48.784132 6547.1861 1.0973273e+10 0.16840766 0.053358134 -30.146315 48.699258 6548.9165 1.0394175e+10 0.16670596 0.053941341 -30.227795 48.614383 6550.6469 9.8904423e+09 0.16588352 0.055147333 -30.308055 48.528288 6552.3773 9.4617139e+09 0.16502532 0.055491807 -30.386140 48.440017 6554.1077 9.0754599e+09 0.16310436 0.054834640 -30.464225 48.351746 6555.8381 8.6796648e+09 0.16141849 0.054149195 -30.546926 48.258257 6557.5685 8.2214689e+09 0.16004672 0.053509800 -30.636168 48.157376 6559.2988 7.7297785e+09 0.15770789 0.052353450 -30.725409 48.056495 6561.0292 7.2843049e+09 0.15512599 0.051358274 -30.805318 47.966162 6562.7596 6.9339961e+09 0.15324520 0.050157090 -30.883403 47.877891 6564.4900 6.6503823e+09 0.15100897 0.048549520 -30.961488 47.789620 6566.2204 6.3375385e+09 0.14914237 0.047058197 -31.046057 47.690114 6567.9508 5.9859852e+09 0.14816467 0.045813258 -31.131419 47.589232 6569.6812 5.6361338e+09 0.14707280 0.044896760 -31.213433 47.493373 6571.4116 5.3223118e+09 0.14587786 0.044390862 -31.288123 47.408498 6573.1420 5.0640051e+09 0.14456784 0.043543545 -31.362812 47.323623 6574.8724 4.8406195e+09 0.14309910 0.042436006 -31.437506 47.237493 6576.6028 4.6406167e+09 0.14119237 0.040677597 -31.512207 47.149209 6578.3332 4.4678846e+09 0.13917228 0.038123518 -31.586908 47.060925 6580.0636 4.2871738e+09 0.13741762 0.036462023 -31.666114 46.967317 6581.7939 4.0845995e+09 0.13555017 0.035356192 -31.751462 46.866453 6583.5243 3.8745386e+09 0.13393984 0.034756271 -31.836809 46.765589 6585.2547 3.6708842e+09 0.13246517 0.033767124 -31.910286 46.675362 6586.9851 3.5030134e+09 0.13082057 0.033158562 -31.981592 46.587079 6588.7155 3.3593513e+09 0.12904698 0.033140983 -32.052898 46.498796 6590.4459 3.2228205e+09 0.12701088 0.030232615 -32.127250 46.410525 6592.1763 3.1117213e+09 0.12471684 0.027902288 -32.201939 46.322254 6593.9067 2.9962171e+09 0.12233504 0.026259275 -32.276628 46.233983 6595.6371 2.8648969e+09 0.11981527 0.025689638 -32.354098 46.133671 6597.3675 2.7200566e+09 0.11765630 0.025606766 -32.431700 46.032790 6599.0979 2.5708966e+09 0.11584953 0.024935616 -32.506920 45.936670 6600.8283 2.4429137e+09 0.11570766 0.026692621 -32.578215 45.848399 6602.5587 2.3431132e+09 0.11492546 0.027039903 -32.649510 45.760129 6604.2890 2.2537507e+09 0.11389004 0.026242901 -32.719338 45.671858 6606.0194 2.1745577e+09 0.11363104 0.027469039 -32.787238 45.583589 6607.7498 2.1084591e+09 0.11188076 0.024226368 -32.855138 45.495320 6609.4802 2.0339402e+09 0.10939282 0.023848579 -32.929647 45.400913 6611.2106 1.9397639e+09 0.10713983 0.024824147 -33.011128 45.300030 6612.9410 1.8436228e+09 0.10651458 0.023617669 -33.092610 45.199147 6614.6714 1.7497027e+09 0.10564176 0.023477926 -33.158655 45.109734 6616.4018 1.6747886e+09 0.10436328 0.023345360 -33.223161 45.021464 6618.1322 1.6166083e+09 0.10379832 0.023870609 -33.287666 44.933195 6619.8626 1.5512334e+09 0.10316073 0.024734039 -33.355444 44.848197 6621.5930 1.5005877e+09 0.10198936 0.024892905 -33.423344 44.763322 6623.3234 1.4459919e+09 0.10045090 0.024611625 -33.491427 44.678145 6625.0538 1.3841377e+09 0.099280954 0.025461745 -33.569022 44.577271 6626.7841 1.3169583e+09 0.097455625 0.025591832 -33.646623 44.476388 6628.5145 1.2470160e+09 0.096428077 0.025912001 -33.718448 44.381068 6630.2449 1.1967446e+09 0.095018925 0.025928905 -33.782954 44.292799 6631.9753 1.1549525e+09 0.093279696 0.026029838 -33.847459 44.204530 6633.7057 1.1131017e+09 0.091783647 0.026275463 -33.916531 44.110011 6635.4361 1.0618393e+09 0.090376859 0.026465188 -33.990252 44.009130 6637.1665 1.0061464e+09 0.089075499 0.026079867 -34.063973 43.908248 6638.8969 9.5998636e+08 0.088042982 0.025632567 -34.129231 43.818946 6640.6273 9.2119190e+08 0.088577323 0.025193903 -34.193736 43.730675 6642.3577 8.8603998e+08 0.088529718 0.025166333 -34.258241 43.642404 6644.0881 8.5319280e+08 0.087679839 0.025353124 -34.319443 43.554135 6645.8185 8.2732219e+08 0.086912325 0.025835102 -34.380553 43.465866 6647.5489 8.0281876e+08 0.086059657 0.026726752 -34.442007 43.377253 6649.2792 7.7422306e+08 0.085123296 0.027248765 -34.515729 43.276370 6651.0096 7.3799207e+08 0.084874409 0.026491549 -34.589452 43.175487 6652.7400 7.0033694e+08 0.084670083 0.027454132 -34.657503 43.080274 6654.4704 6.7193114e+08 0.083820182 0.027835822 -34.718622 42.991992 6656.2008 6.4930295e+08 0.082223678 0.028199669 -34.779741 42.903709 6657.9312 6.2694733e+08 0.081049714 0.029981278 -34.840856 42.815433 6659.6616 6.0774574e+08 0.079702363 0.031696589 -34.901966 42.727162 6661.3920 5.9170526e+08 0.078367307 0.032734598 -34.963076 42.638891 6663.1224 5.7556221e+08 0.077288991 0.032449298 -35.029070 42.543566 6664.8528 5.5556363e+08 0.076637921 0.029085826 -35.098910 42.442684 6666.5832 5.3175999e+08 0.076313440 0.027022232 -35.168751 42.341802 6668.3136 5.0774334e+08 0.075466681 0.027748251 -35.226683 42.253308 6670.0440 4.8729344e+08 0.075047797 0.027308271 -35.284398 42.165038 6671.7743 4.6902450e+08 0.074688351 0.026876383 -35.342238 42.076769 6673.5047 4.5381404e+08 0.074010929 0.028214086 -35.403348 41.988498 6675.2351 4.4171150e+08 0.072360279 0.030248712 -35.464458 41.900228 6676.9655 4.2951641e+08 0.070444423 0.032335996 -35.526010 41.810808 6678.6959 4.1334511e+08 0.069923771 0.030471158 -35.591971 41.709927 6680.4263 3.9644693e+08 0.070629977 0.029533473 -35.657931 41.609046 6682.1567 3.7651663e+08 0.071300005 0.030544265 -35.719655 41.514644 6683.8871 3.6221657e+08 0.071512072 0.032488619 -35.777371 41.426374 6685.6175 3.5243588e+08 0.071178715 0.033357050 -35.835086 41.338103 6687.3479 3.4272976e+08 0.069459421 0.034148888 -35.897488 41.242665 6689.0783 3.3058102e+08 0.067166376 0.033945573 -35.963449 41.141783 6690.8087 3.1469532e+08 0.066554547 0.033023191 -36.029410 41.040901 6692.5391 2.9714551e+08 0.065920645 0.032139362 -36.083834 40.952518 6694.2694 2.8379990e+08 0.065216746 0.030883389 -36.138154 40.864247 6695.9998 2.7387670e+08 0.065138609 0.029675717 -36.193004 40.775579 6697.7302 2.6197679e+08 0.064537451 0.030183677 -36.258966 40.678577 6699.4606 2.5218091e+08 0.063324304 0.031165412 -36.324928 40.581575 6701.1910 2.4239131e+08 0.061831790 0.031689714 -36.385438 40.488663 6702.9214 2.3474273e+08 0.061658468 0.033612475 -36.439758 40.400393 6704.6518 2.2785384e+08 0.061746797 0.036497620 -36.494078 40.312124 6706.3822 2.1951922e+08 0.061564564 0.039111573 -36.552455 40.217261 6708.1126 2.0867323e+08 0.061332634 0.040166174 -36.614537 40.116378 6709.8430 2.0025935e+08 0.060401913 0.040596371 -36.676618 40.015495 6711.5734 1.9176510e+08 0.058738165 0.041344565 -36.734570 39.926538 6713.3038 1.8599338e+08 0.057105763 0.044785250 -36.792285 39.838268 6715.0341 1.7925674e+08 0.055587409 0.047413516 -36.850000 39.749984 6716.7645 1.7401855e+08 0.053963753 0.049527461 -36.908201 39.649117 6718.4949 1.6881760e+08 0.052225939 0.050583237 -36.966403 39.548236 6720.2253 1.6231922e+08 0.051941293 0.050393658 -37.022964 39.452685 6721.9557 1.5712991e+08 0.052031876 0.050591862 -37.077284 39.364415 6723.6861 1.5246706e+08 0.050506771 0.049751600 -37.131603 39.276144 6725.4165 1.4978479e+08 0.046886647 0.041315850 -37.189627 39.181855 6727.1469 1.4475459e+08 0.045713712 0.040764679 -37.251708 39.080974 6728.8773 1.3682470e+08 0.045582720 0.040871505 -37.313790 38.980093 6730.6077 1.2817656e+08 0.044213515 0.041212107 -37.365831 38.890560 6732.3381 1.2251999e+08 0.043038364 0.043802447 -37.416757 38.802289 6734.0685 1.1933241e+08 0.042217962 0.049349480 -37.467683 38.714018 6735.7989 1.1700545e+08 0.043612840 0.050141478 -37.525552 38.617414 6737.5292 1.1401961e+08 0.044715323 0.055821503 -37.583752 38.520412 6739.2596 1.0945342e+08 0.045021959 0.063144304 -37.639208 38.426704 6740.9900 1.0468709e+08 0.044028225 0.065741666 -37.690134 38.338434 6742.7204 98453640. 0.041270017 0.070366207 -37.741059 38.250165 6744.4508 90677136. 0.037909850 0.078142109 -37.795125 38.156451 6746.1812 88647301. 0.036457511 0.076880495 -37.853325 38.055568 6747.9116 85871385. 0.033105361 0.067047331 -37.911525 37.954685 6749.6420 86128095. 0.031340894 0.072102154 -37.969727 37.853804 6751.3724 82230649. 0.029186103 0.073869119 -38.027929 37.752922 6753.1028 75764230. 0.027225467 0.073309906 -38.084114 37.655536 6754.8332 74491008. 0.025641525 0.074873625 -38.135040 37.567265 6756.5636 70820406. 0.023171256 0.075617045 -38.185965 37.478994 6758.2940 70913074. 0.022305363 0.074326934 -38.238017 37.386540 6760.0243 65095011. 0.016130864 0.076107705 -38.292338 37.285659 6761.7547 58487131. 0.023929425 0.078030581 -38.346659 37.184778 6763.4851 54892297. 0.040152448 0.077915250 -38.403906 37.086823