# # 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 = 49.835129 km # Date (UTC) = 2011-12-06T10:15:18.397 # Date (julian) = 2455901.92729626 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6491.0249 2.7820063e+11 0.030862666 0.029576790 -36.672003 50.448218 6493.1995 2.4241655e+11 0.038334906 0.030232542 -36.784188 50.347601 6495.3741 2.0797180e+11 0.045690093 0.030888294 -36.886585 50.252790 6497.5488 1.7943132e+11 0.052716678 0.031544046 -36.988981 50.157978 6499.7234 1.5571769e+11 0.059356664 0.032199798 -37.096493 50.056062 6501.8980 1.3477164e+11 0.065569469 0.032855550 -37.207425 49.949398 6504.0726 1.1672574e+11 0.071297930 0.033511302 -37.318356 49.842734 6506.2473 1.0114147e+11 0.076571749 0.034167055 -37.429287 49.736069 6508.4219 8.7983169e+10 0.081609264 0.034822807 -37.540217 49.629405 6510.5965 7.7584836e+10 0.086798472 0.035478559 -37.639908 49.533548 6512.7711 6.9737957e+10 0.092698898 0.036134311 -37.738513 49.438737 6514.9458 6.3562889e+10 0.099828064 0.036790063 -37.839334 49.341840 6517.1204 5.7878030e+10 0.10830170 0.037445815 -37.945998 49.239443 6519.2950 5.2402406e+10 0.11829315 0.038101567 -38.052663 49.137046 6521.4696 4.7433758e+10 0.13003018 0.038757319 -38.148301 49.041702 6523.6443 4.3426541e+10 0.13905698 0.039338789 -38.243125 48.946878 6525.8189 3.9983024e+10 0.14742866 0.039688758 -38.341438 48.848564 6527.9935 3.6702320e+10 0.15732491 0.041437766 -38.448102 48.741900 6530.1681 3.3515254e+10 0.16560831 0.044064069 -38.554767 48.635235 6532.3427 3.0503465e+10 0.17114720 0.046970522 -38.661431 48.528571 6534.5174 2.7783113e+10 0.17291507 0.048089287 -38.768095 48.421907 6536.6920 2.5367003e+10 0.17193917 0.048409649 -38.865260 48.322439 6538.8666 2.3364908e+10 0.17081861 0.049578680 -38.956278 48.227628 6541.0412 2.1685213e+10 0.16931572 0.051313153 -39.047297 48.132816 6543.2159 2.0128308e+10 0.16769771 0.051438549 -39.149357 48.026504 6545.3905 1.8625960e+10 0.16616511 0.052459065 -39.251755 47.919840 6547.5651 1.7173737e+10 0.16482391 0.053502268 -39.344655 47.820594 6549.7397 1.5934914e+10 0.16365409 0.054720135 -39.431893 47.725770 6551.9144 1.4891367e+10 0.16255259 0.055556707 -39.519146 47.630935 6554.0890 1.3880416e+10 0.16078132 0.054834248 -39.621376 47.524400 6556.2636 1.2899228e+10 0.15937198 0.053974370 -39.723773 47.417736 6558.4382 1.1958978e+10 0.15799943 0.052865873 -39.816367 47.318731 6560.6129 1.1205983e+10 0.15599410 0.051721736 -39.903595 47.223920 6562.7875 1.0582177e+10 0.15407232 0.050130583 -39.990925 47.128998 6564.9621 9.9708452e+09 0.15223229 0.048335570 -40.089056 47.022333 6567.1367 9.3548043e+09 0.15044468 0.046501576 -40.187187 46.915669 6569.3114 8.7431171e+09 0.14875481 0.044872689 -40.275535 46.816894 6571.4860 8.2422634e+09 0.14725676 0.044370544 -40.358968 46.722083 6573.6606 7.8017040e+09 0.14491797 0.043127362 -40.442701 46.626931 6575.8352 7.3654577e+09 0.14229275 0.041536711 -40.536566 46.520266 6578.0099 6.9331512e+09 0.13950656 0.038634056 -40.630431 46.413602 6580.1845 6.4809384e+09 0.13681125 0.036350270 -40.724296 46.306937 6582.3591 6.0553707e+09 0.13467282 0.035196074 -40.818161 46.200273 6584.5337 5.6653304e+09 0.13297001 0.034224771 -40.908471 46.097649 6586.7083 5.3313104e+09 0.13139843 0.033162139 -40.991915 46.002825 6588.8830 5.0527420e+09 0.12979089 0.033085059 -41.075359 45.908001 6591.0576 4.7797707e+09 0.12761828 0.029136919 -41.163141 45.804833 6593.2322 4.4912469e+09 0.12582940 0.026886326 -41.252740 45.698169 6595.4068 4.2023855e+09 0.12358177 0.025665762 -41.340113 45.595782 6597.5815 3.9565945e+09 0.12151004 0.025539238 -41.423546 45.500971 6599.7561 3.7545762e+09 0.12042107 0.024975205 -41.506979 45.406160 6601.9307 3.5717401e+09 0.11992512 0.027484005 -41.594877 45.299676 6604.1053 3.3783058e+09 0.11838938 0.026133824 -41.684476 45.188744 6606.2800 3.1859747e+09 0.11782899 0.027000877 -41.768846 45.083943 6608.4546 3.0255847e+09 0.11502511 0.023720352 -41.844694 44.989132 6610.6292 2.8859419e+09 0.11163423 0.024604176 -41.920542 44.894320 6612.8038 2.7560285e+09 0.10974279 0.023720156 -42.006623 44.790685 6614.9785 2.6185648e+09 0.10813620 0.023266372 -42.096236 44.684005 6617.1531 2.4694848e+09 0.10636479 0.023490004 -42.184135 44.577331 6619.3277 2.3248821e+09 0.10523128 0.024604985 -42.269465 44.470667 6621.5023 2.1917247e+09 0.10374111 0.024922947 -42.354262 44.364669 6623.6770 2.0816884e+09 0.10128911 0.024742627 -42.430112 44.269858 6625.8516 1.9949947e+09 0.099367594 0.026413794 -42.505961 44.175046 6628.0262 1.9180444e+09 0.097101694 0.025713734 -42.585787 44.075264 6630.2008 1.8339328e+09 0.095476506 0.025928797 -42.671119 43.968600 6632.3755 1.7417378e+09 0.093950470 0.026077365 -42.756128 43.861936 6634.5501 1.6403844e+09 0.092777699 0.026366968 -42.837192 43.755271 6636.7247 1.5504911e+09 0.091485539 0.026268322 -42.918256 43.648607 6638.8993 1.4739004e+09 0.090508976 0.025632461 -42.995505 43.550617 6641.0739 1.4160217e+09 0.091114465 0.025148552 -43.071354 43.455805 6643.2486 1.3676391e+09 0.090479853 0.025230150 -43.147700 43.359461 6645.4232 1.3128304e+09 0.089360028 0.025649936 -43.228778 43.248514 6647.5978 1.2568282e+09 0.088163812 0.026752535 -43.309856 43.137568 6649.7724 1.1908659e+09 0.087246981 0.026568912 -43.390924 43.029840 6651.9471 1.1288188e+09 0.086646819 0.027209956 -43.471988 42.923175 6654.1217 1.0731665e+09 0.085808660 0.027984384 -43.549379 42.821344 6656.2963 1.0282819e+09 0.083787442 0.028283492 -43.621435 42.726533 6658.4709 9.9363226e+08 0.081987745 0.030896299 -43.693491 42.631722 6660.6456 9.5560021e+08 0.080310437 0.032212783 -43.769203 42.527773 6662.8202 9.1830495e+08 0.078753158 0.032584098 -43.846002 42.421108 6664.9948 8.7442739e+08 0.077833666 0.028566116 -43.924623 42.314443 6667.1694 8.2761194e+08 0.077158841 0.027165694 -44.005689 42.207779 6669.3441 7.8323038e+08 0.075869664 0.028002330 -44.085688 42.102102 6671.5187 7.4283929e+08 0.075584950 0.026872740 -44.153951 42.007291 6673.6933 7.1746143e+08 0.074589963 0.028496109 -44.222214 41.912480 6675.8679 6.9443430e+08 0.072200384 0.031460763 -44.294292 41.812370 6678.0426 6.7013650e+08 0.071016855 0.030908151 -44.371102 41.705690 6680.2172 6.4110651e+08 0.071346171 0.029488314 -44.447911 41.599011 6682.3918 6.0817481e+08 0.072186101 0.030723895 -44.524709 41.492347 6684.5664 5.8040763e+08 0.072334134 0.032682836 -44.601508 41.385683 6686.7411 5.5467703e+08 0.071101323 0.034192239 -44.675068 41.279018 6688.9157 5.2981886e+08 0.068333206 0.033996559 -44.747601 41.172353 6691.0903 5.0479888e+08 0.067444973 0.032979958 -44.821905 41.063916 6693.2649 4.8217315e+08 0.066637449 0.031513204 -44.898704 40.952984 6695.4395 4.6082043e+08 0.066240685 0.029778734 -44.975196 40.842358 6697.6142 4.3823629e+08 0.065632348 0.030168990 -45.047727 40.735694 6699.7888 4.1727061e+08 0.064206230 0.030862601 -45.120258 40.629030 6701.9634 3.9870388e+08 0.062488057 0.032823054 -45.186924 40.530993 6704.1380 3.8654084e+08 0.062821740 0.036245339 -45.251396 40.436182 6706.3127 3.7469487e+08 0.062729611 0.038990576 -45.316602 40.340292 6708.4873 3.5963231e+08 0.062285360 0.040574220 -45.389133 40.233627 6710.6619 3.4228751e+08 0.060830466 0.040626056 -45.461664 40.126962 6712.8365 3.2609435e+08 0.058837242 0.043383131 -45.534196 40.020298 6715.0112 3.1301668e+08 0.056843979 0.047390005 -45.606729 39.913634 6717.1858 2.9870908e+08 0.054797252 0.049862777 -45.677544 39.806963 6719.3604 2.8784755e+08 0.052815337 0.051027423 -45.745819 39.700283 6721.5350 2.7496661e+08 0.053164416 0.050465107 -45.814350 39.593604 6723.7097 2.6261809e+08 0.051554238 0.049764732 -45.886881 39.486940 6725.8843 2.5210569e+08 0.047670346 0.041023651 -45.959411 39.380275 6728.0589 2.3789578e+08 0.047105640 0.039711589 -46.028887 39.273611 6730.2335 2.2934468e+08 0.045862472 0.040699100 -46.097152 39.166947 6732.4082 2.1886819e+08 0.044524727 0.043815349 -46.165417 39.060283 6734.5828 2.1078719e+08 0.044247315 0.049318535 -46.233683 38.953618 6736.7574 2.0522803e+08 0.046062122 0.053218408 -46.301948 38.846953 6738.9320 1.9839365e+08 0.046977557 0.062452322 -46.370213 38.740289 6741.1066 1.9254418e+08 0.045839706 0.066062862 -46.438478 38.633625 6743.2813 1.8147619e+08 0.042053246 0.072944905 -46.513422 38.516525 6745.4559 1.7129919e+08 0.039559682 0.078758542 -46.591441 38.394620 6747.6305 1.6136936e+08 0.035296249 0.067144097 -46.663276 38.282377 6749.8051 1.5464386e+08 0.033275084 0.072057483 -46.731541 38.175713 6751.9798 1.5059216e+08 0.030093668 0.074125923 -46.798569 38.069049 6754.1544 1.4192880e+08 0.028933745 0.075965187 -46.862568 37.962385 6756.3290 1.3714865e+08 0.026302382 0.075013519 -46.926567 37.855721 6758.5036 1.3243852e+08 0.026247864 0.074770339 -46.990566 37.749056 6760.6783 1.2869091e+08 0.026620169 0.077354692 -47.054566 37.642391 6762.8529 1.2454960e+08 0.031486972 0.076675065 -47.121136 37.535727 6765.0275 1.1755812e+08 0.033944951 0.079536215 -47.189401 37.429062 6767.2021 1.1405589e+08 0.033316249 0.081749424 -47.258928 37.318455 6769.3768 1.1035322e+08 0.028391326 0.085368073 -47.332069 37.196550 6771.5514 1.0562706e+08 0.024363682 0.090642492 -47.403312 37.077812 6773.7260 1.0012928e+08 0.020347065 0.095916911 -47.467320 36.971132 6775.9006 96008818. 0.016353225 0.10119133 -47.531329 36.864452 6778.0753 90774996. 0.012353305 0.10646575 -47.591640 36.757785 6780.2499 88022625. 0.0083753793 0.11174017 -47.651372 36.651121 6782.4245 84035152. 0.0043676190 0.11701459 -47.718087 36.536520 6784.5991 81094883. 0.00036141440 0.12228901 -47.791231 36.414615 6786.7738 79855882. -0.0036276813 0.12756343 -47.860077 36.299872 6788.9484 76265439. -0.0077267210 0.13283785 -47.924075 36.193208 6791.1230 70741618. -0.011998380 0.13811226 -47.988611 36.084621 6793.2976 66453019. -0.016443908 0.14338668 -48.056877 35.962717 6795.4722 63068827. -0.021249532 0.14866110 -48.124500 35.841961 6797.6469 62174211. -0.027193681 0.15393552 -48.184232 35.735297 6799.8215 60656113. -0.044030627 0.15920994 -48.243963 35.628632 6801.9961 56934590. -0.036952820 0.16448436 -48.313507 35.510819 6804.1707 53069935. -0.014963426 0.16975878 -48.386651 35.388913