# # 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 = 48.476496 km # Date (UTC) = 2014-11-26T09:04:10.815 # Date (julian) = 2456987.87790295 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6489.8884 2.3813121e+11 0.028176227 0.029234075 -10.230417 59.015771 6492.0098 1.9664236e+11 0.035607507 0.029873787 -10.395732 58.923031 6494.1312 1.6072655e+11 0.042938093 0.030513498 -10.558058 58.827300 6496.2527 1.3118183e+11 0.050032829 0.031153209 -10.720384 58.731569 6498.3741 1.0910072e+11 0.056695084 0.031792921 -10.882731 58.639486 6500.4955 9.2583450e+10 0.062871785 0.032432632 -11.045082 58.547903 6502.6169 8.0746296e+10 0.068477581 0.033072343 -11.205435 58.454342 6504.7384 7.0742005e+10 0.073592216 0.033712055 -11.363600 58.358611 6506.8598 6.2493841e+10 0.078255290 0.034351766 -11.521764 58.262881 6508.9812 5.5716888e+10 0.082734908 0.034991477 -11.679927 58.167150 6511.1027 5.0272095e+10 0.087496041 0.035631189 -11.838091 58.071420 6513.2241 4.5534885e+10 0.092952294 0.036270900 -12.008241 57.969695 6515.3455 4.1211391e+10 0.099492529 0.036910611 -12.184246 57.865043 6517.4670 3.7365526e+10 0.10754204 0.037550323 -12.345347 57.765472 6519.5884 3.4196158e+10 0.11764945 0.038190034 -12.495187 57.669742 6521.7098 3.1746081e+10 0.13015662 0.038829745 -12.645026 57.574011 6523.8312 2.9652130e+10 0.13952972 0.039385133 -12.794865 57.478281 6525.9527 2.7780106e+10 0.14895261 0.039673489 -12.944705 57.382550 6528.0741 2.6060058e+10 0.15937010 0.041501266 -13.094544 57.286820 6530.1955 2.4430658e+10 0.16683742 0.044102431 -13.244384 57.191089 6532.3170 2.2898282e+10 0.17095193 0.046948975 -13.392718 57.095358 6534.4384 2.1356164e+10 0.17126168 0.048067191 -13.538394 56.999628 6536.5598 1.9839587e+10 0.16997633 0.048291382 -13.684071 56.903897 6538.6812 1.8348283e+10 0.16923410 0.049488411 -13.825756 56.804173 6540.8027 1.6900679e+10 0.16796302 0.051233306 -13.967271 56.704279 6542.9241 1.5528880e+10 0.16631031 0.051353079 -14.108786 56.606703 6545.0455 1.4216150e+10 0.16512343 0.052455975 -14.250301 56.510973 6547.1670 1.3032267e+10 0.16353472 0.053350857 -14.391177 56.415240 6549.2884 1.1965793e+10 0.16196947 0.054260172 -14.528551 56.319495 6551.4098 1.1041958e+10 0.16101236 0.055379604 -14.665924 56.223751 6553.5312 1.0256195e+10 0.15996650 0.055068016 -14.803282 56.124886 6555.6527 9.5830995e+09 0.15870985 0.054304960 -14.940635 56.024992 6557.7741 9.0019705e+09 0.15763013 0.053380895 -15.077988 55.926553 6559.8955 8.4675583e+09 0.15603637 0.052286100 -15.215340 55.830823 6562.0170 7.9705768e+09 0.15401682 0.050863761 -15.352693 55.735092 6564.1384 7.5045389e+09 0.15173534 0.048708877 -15.486105 55.635421 6566.2598 7.0654960e+09 0.15017683 0.047035903 -15.619296 55.535529 6568.3813 6.6582555e+09 0.14894484 0.045421201 -15.750222 55.437901 6570.5027 6.2589963e+09 0.14768126 0.044709282 -15.879250 55.342169 6572.6241 5.8999341e+09 0.14590271 0.043872744 -16.008278 55.245848 6574.7455 5.5722508e+09 0.14371467 0.042496925 -16.137306 55.145956 6576.8670 5.2651531e+09 0.14152407 0.040373495 -16.266334 55.046063 6578.9884 4.9859893e+09 0.13903238 0.037088819 -16.395363 54.946170 6581.1098 4.7196323e+09 0.13738165 0.035563352 -16.524392 54.846277 6583.2313 4.4719221e+09 0.13616212 0.034904615 -16.652020 54.747784 6585.3527 4.2317985e+09 0.13470989 0.033688810 -16.776886 54.652053 6587.4741 3.9972145e+09 0.13344679 0.033263415 -16.901752 54.556323 6589.5955 3.7755483e+09 0.13194679 0.031864474 -17.026618 54.456706 6591.7170 3.5673347e+09 0.12991351 0.028392890 -17.151483 54.356814 6593.8384 3.3761155e+09 0.12802096 0.026322762 -17.267018 54.262813 6595.9598 3.2183397e+09 0.12553029 0.025723108 -17.374323 54.174009 6598.0813 3.0732163e+09 0.12383227 0.025368369 -17.481628 54.085204 6600.2027 2.9387212e+09 0.12320609 0.025406566 -17.600039 53.987210 6602.3241 2.7983578e+09 0.12251910 0.027240044 -17.720743 53.887318 6604.4455 2.6516334e+09 0.12129504 0.026335828 -17.841447 53.787425 6606.5670 2.5234968e+09 0.12042555 0.026485125 -17.962151 53.687532 6608.6884 2.4063778e+09 0.11746635 0.023714170 -18.082756 53.587638 6610.8098 2.2929123e+09 0.11424355 0.024776757 -18.199298 53.487744 6612.9313 2.1828654e+09 0.11273005 0.023624947 -18.315840 53.387851 6615.0527 2.0709389e+09 0.11116962 0.023253153 -18.432382 53.287958 6617.1741 1.9697019e+09 0.10940312 0.023496979 -18.548923 53.188066 6619.2956 1.8806693e+09 0.10811948 0.024597226 -18.664555 53.088174 6621.4170 1.7935148e+09 0.10667147 0.024951237 -18.776934 52.988280 6623.5384 1.7140732e+09 0.10468495 0.024691298 -18.889314 52.888386 6625.6598 1.6414513e+09 0.10341449 0.026184990 -19.001694 52.788494 6627.7813 1.5690112e+09 0.10179309 0.025618602 -19.114074 52.688602 6629.9027 1.5005437e+09 0.10070039 0.025945894 -19.226453 52.588709 6632.0241 1.4256879e+09 0.099148618 0.026035238 -19.338833 52.488816 6634.1456 1.3538542e+09 0.097864745 0.026337460 -19.451164 52.388922 6636.2670 1.2990310e+09 0.096422437 0.026446072 -19.559400 52.289015 6638.3884 1.2488765e+09 0.095348649 0.025654720 -19.667633 52.189108 6640.5098 1.1976351e+09 0.095475751 0.025208272 -19.785267 52.080523 6642.6313 1.1387621e+09 0.095250434 0.025177529 -19.908947 51.966356 6644.7527 1.0748471e+09 0.094266006 0.025424957 -20.024798 51.857309 6646.8741 1.0159442e+09 0.093081270 0.026372625 -20.133015 51.753254 6648.9956 9.6628481e+08 0.091740414 0.027630715 -20.240800 51.649631 6651.1170 9.2216908e+08 0.091241805 0.026573820 -20.344855 51.549738 6653.2384 8.8925618e+08 0.090512283 0.027647389 -20.448910 51.449844 6655.3598 8.5892920e+08 0.088774523 0.027758905 -20.552965 51.349952 6657.4813 8.2596538e+08 0.086748751 0.029459375 -20.657020 51.250060 6659.6027 7.9184762e+08 0.084978203 0.031708874 -20.761075 51.150167 6661.7241 7.5434649e+08 0.083283421 0.032903767 -20.865131 51.050273 6663.8456 7.2297984e+08 0.081596000 0.032248887 -20.969187 50.950379 6665.9670 6.9202628e+08 0.081240702 0.026962680 -21.069512 50.846756 6668.0884 6.6434843e+08 0.080144359 0.027549021 -21.169405 50.742701 6670.2099 6.3520063e+08 0.079434645 0.027231412 -21.269297 50.640701 6672.3313 6.1366876e+08 0.079002123 0.027071615 -21.369190 50.540809 6674.4527 5.8702515e+08 0.077976422 0.029336680 -21.469083 50.440917 6676.5741 5.5703511e+08 0.075889000 0.032083752 -21.568976 50.341023 6678.6956 5.3446583e+08 0.075127938 0.030471389 -21.668870 50.241130 6680.8170 5.0906495e+08 0.075993036 0.029617840 -21.765898 50.138372 6682.9384 4.9697702e+08 0.076499162 0.031141536 -21.861628 50.034317 6685.0599 4.7926710e+08 0.076254435 0.032768058 -21.958553 49.931447 6687.1813 4.5785232e+08 0.074436908 0.034241796 -22.058461 49.831540 6689.3027 4.4164576e+08 0.071743817 0.033743534 -22.158369 49.731632 6691.4241 4.1869875e+08 0.070768437 0.032901193 -22.262468 49.614923 6693.5456 3.9739054e+08 0.069795384 0.031416924 -22.367120 49.496001 6695.6670 3.7621173e+08 0.069400846 0.029736954 -22.464801 49.391947 6697.7884 3.5674650e+08 0.068560670 0.030191042 -22.560533 49.292053 6699.9099 3.4336835e+08 0.066837079 0.030750894 -22.654687 49.192161 6702.0313 3.3005620e+08 0.064903140 0.032901713 -22.746255 49.092269 6704.1527 3.1897413e+08 0.064973280 0.036252545 -22.837823 48.992377 6706.2741 3.0516757e+08 0.064635808 0.038923533 -22.929391 48.888421 6708.3956 2.9288910e+08 0.063908870 0.040474345 -23.020959 48.784366 6710.5170 2.7792296e+08 0.062226238 0.040597692 -23.112528 48.682698 6712.6384 2.6460879e+08 0.059884707 0.043015315 -23.204098 48.582803 6714.7599 2.5797031e+08 0.057497807 0.047360535 -23.297091 48.479654 6716.8813 2.4799820e+08 0.055228560 0.049699421 -23.396986 48.360731 6719.0027 2.3974863e+08 0.052609279 0.051367254 -23.496307 48.243119 6721.1241 2.3113808e+08 0.052874044 0.050341306 -23.587875 48.143226 6723.2456 2.1863730e+08 0.051474093 0.049505907 -23.679443 48.043332 6725.3670 2.1291657e+08 0.047130536 0.041346768 -23.768238 47.940666 6727.4884 2.0364672e+08 0.045680012 0.040309648 -23.855645 47.836611 6729.6099 1.9701824e+08 0.044605923 0.040638936 -23.945091 47.729890 6731.7313 1.9184661e+08 0.042646773 0.043205437 -24.040229 47.615725 6733.8527 1.8067116e+08 0.041313826 0.048553996 -24.134119 47.503193 6735.9742 1.7161284e+08 0.042588958 0.050327568 -24.221525 47.399138 6738.0956 1.6137955e+08 0.043542109 0.057847316 -24.308931 47.295082 6740.2170 1.5539018e+08 0.042967889 0.064421089 -24.393179 47.191027 6742.3384 1.5162233e+08 0.040220107 0.069435425 -24.476423 47.086972 6744.4599 1.4401820e+08 0.035832396 0.078149110 -24.563906 46.979313 6746.5813 1.3947588e+08 0.032514582 0.072229027 -24.659044 46.865147 6748.7027 1.3363015e+08 0.030733293 0.070713976 -24.751161 46.753547 6750.8242 1.2902998e+08 0.027781197 0.073411413 -24.834418 46.649476 6752.9456 1.2550352e+08 0.024938546 0.073040256 -24.917675 46.545405 6755.0670 1.1684890e+08 0.022905648 0.074575964 -25.006989 46.432751 6757.1884 1.1260743e+08 0.020386019 0.076168177 -25.097356 46.318605 6759.3099 1.0689877e+08 0.021157359 0.075894732 -25.182393 46.212010 6761.4313 1.0147993e+08 0.022662390 0.078003859 -25.265649 46.107939 6763.5527 96581012. 0.026743948 0.078121122 -25.351379 46.000363 6765.6742 90639947. 0.028325186 0.079654264 -25.441761 45.886197 6767.7956 84657006. 0.025546885 0.081084911 -25.529374 45.774508 6769.9170 79425403. 0.020037534 0.086678436 -25.608456 45.670453 6772.0384 76624198. 0.014910454 0.091823835 -25.687538 45.566398 6774.1599 73527277. 0.0086570431 0.096969233 -25.772131 45.449818 6776.2813 68472359. -0.0015413613 0.10211463 -25.857754 45.330896 6778.4027 63528354. -0.043098256 0.10726003 -25.946899 45.215495 6780.5242 58603313. -0.018038289 0.11240543 -26.037281 45.101330 6782.6456 58679465. 0.049559934 0.11755083 -26.117798 44.993615