# # 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 = 44.916171 km # Date (UTC) = 2015-01-23T10:32:52.478 # Date (julian) = 2457045.93949627 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.8573 8.0328320e+10 0.053217052 0.032843280 -33.676759 56.486189 6503.8365 7.2338932e+10 0.061696445 0.033440089 -33.847623 56.355739 6505.8156 6.5181034e+10 0.070339038 0.034036899 -34.018487 56.226297 6507.7948 5.9436230e+10 0.079320837 0.034633708 -34.164111 56.109160 6509.7740 5.4412676e+10 0.088626536 0.035230518 -34.306100 55.993795 6511.7531 5.0035862e+10 0.098296325 0.035827328 -34.459577 55.869697 6513.7323 4.5829051e+10 0.10823175 0.036424137 -34.620083 55.740255 6515.7114 4.1644967e+10 0.11835200 0.037020947 -34.780592 55.607244 6517.6906 3.7659740e+10 0.12866996 0.037617757 -34.941101 55.472623 6519.6697 3.4269828e+10 0.13935484 0.038214566 -35.080871 55.355939 6521.6489 3.1486419e+10 0.15045100 0.038811376 -35.214007 55.244992 6523.6281 2.9055511e+10 0.15715104 0.039334773 -35.358338 55.122106 6525.6072 2.6678666e+10 0.16257098 0.039712915 -35.513670 54.987487 6527.5864 2.4199650e+10 0.16779641 0.041142179 -35.669001 54.852867 6529.5655 2.1858007e+10 0.17159252 0.043136612 -35.824331 54.718246 6531.5447 1.9944858e+10 0.17464695 0.046021467 -35.962574 54.598814 6533.5238 1.8436704e+10 0.17708457 0.047742202 -36.091271 54.487867 6535.5030 1.7149212e+10 0.17775237 0.048006100 -36.228300 54.367728 6537.4822 1.5925797e+10 0.17835891 0.048912539 -36.378453 54.233110 6539.4613 1.4741555e+10 0.17773102 0.050202030 -36.516776 54.107279 6541.4405 1.3741155e+10 0.17583130 0.051183689 -36.641038 53.991895 6543.4196 1.2878674e+10 0.17379882 0.051492025 -36.769512 53.872599 6545.3988 1.2014476e+10 0.17202582 0.052459140 -36.914457 53.738005 6547.3779 1.1162153e+10 0.17035169 0.053431087 -37.052573 53.608633 6549.3571 1.0384043e+10 0.16836134 0.054330188 -37.172396 53.493249 6551.3363 9.7253874e+09 0.16668171 0.055353781 -37.292589 53.377508 6553.3154 9.1033666e+09 0.16509701 0.055176515 -37.432388 53.242887 6555.2946 8.4786692e+09 0.16334773 0.054605858 -37.570445 53.109942 6557.2737 7.9122004e+09 0.16138841 0.053694536 -37.690268 52.994558 6559.2529 7.4283135e+09 0.15878979 0.052358638 -37.810091 52.879174 6561.2320 6.9798333e+09 0.15612234 0.051258338 -37.942251 52.747750 6563.2112 6.5245802e+09 0.15386124 0.049684063 -38.076870 52.613129 6565.1904 6.0835298e+09 0.15175079 0.048102249 -38.194131 52.495868 6567.1695 5.7201147e+09 0.14965784 0.046473863 -38.309515 52.380483 6569.1487 5.4378216e+09 0.14733125 0.044862100 -38.424901 52.265099 6571.1278 5.2057374e+09 0.14535228 0.044468364 -38.540287 52.149715 6573.1070 4.9661254e+09 0.14311772 0.043571632 -38.661236 52.024667 6575.0861 4.6841676e+09 0.14065565 0.042288284 -38.790678 51.884870 6577.0653 4.3932201e+09 0.13779147 0.040117808 -38.911530 51.756410 6579.0445 4.1162257e+09 0.13429898 0.037046060 -39.022478 51.641024 6581.0236 3.9005456e+09 0.13138001 0.035589460 -39.132488 51.525638 6583.0028 3.7314820e+09 0.12922487 0.035020266 -39.238996 51.410253 6584.9819 3.5746042e+09 0.12714935 0.033980619 -39.345505 51.294869 6586.9611 3.3915563e+09 0.12534435 0.033158872 -39.473980 51.161060 6588.9402 3.1927351e+09 0.12369329 0.033065935 -39.602698 51.026830 6590.9194 2.9953406e+09 0.12164244 0.029351845 -39.704771 50.907007 6592.8986 2.8298815e+09 0.11986443 0.027200756 -39.806844 50.787183 6594.8777 2.7099675e+09 0.11759262 0.025690702 -39.912346 50.670792 6596.8569 2.5959430e+09 0.11503767 0.025723378 -40.018854 50.555408 6598.8360 2.4741561e+09 0.11316976 0.025008017 -40.131888 50.430039 6600.8152 2.3390356e+09 0.11307898 0.026665739 -40.250951 50.295447 6602.7943 2.2028121e+09 0.11224004 0.026838776 -40.360022 50.169540 6604.7735 2.0895428e+09 0.11122992 0.026530553 -40.462093 50.049716 6606.7527 1.9932087e+09 0.11009026 0.026151468 -40.564165 49.931378 6608.7318 1.9074086e+09 0.10716775 0.023713022 -40.666236 49.815992 6610.7110 1.8272836e+09 0.10414140 0.024682293 -40.767946 49.700606 6612.6901 1.7486709e+09 0.10253089 0.023805116 -40.865580 49.585222 6614.6693 1.6799881e+09 0.10107572 0.023479382 -40.963214 49.469837 6616.6484 1.5933749e+09 0.099412025 0.023384072 -41.074326 49.334237 6618.6276 1.5044453e+09 0.098530744 0.024244707 -41.188236 49.194439 6620.6068 1.4160897e+09 0.097588592 0.024962724 -41.287549 49.076532 6622.5859 1.3369829e+09 0.095986902 0.024602042 -41.385182 48.961145 6624.5651 1.2720118e+09 0.094138338 0.025164788 -41.479961 48.842906 6626.5442 1.2171942e+09 0.092399771 0.025897508 -41.573158 48.723084 6628.5234 1.1625708e+09 0.091175080 0.025915594 -41.666354 48.604993 6630.5025 1.1131773e+09 0.089945910 0.025929540 -41.759549 48.489607 6632.4817 1.0699554e+09 0.088703411 0.026090105 -41.852744 48.373614 6634.4609 1.0261250e+09 0.087492785 0.026360460 -41.945939 48.253791 6636.4400 9.8918530e+08 0.086174229 0.026378878 -42.039134 48.133968 6638.4192 9.3735417e+08 0.085412409 0.025653380 -42.146054 48.001074 6640.3983 8.8223854e+08 0.085824976 0.025221916 -42.254785 47.866455 6642.3775 8.3265217e+08 0.085894452 0.025167144 -42.344501 47.745922 6644.3566 7.9137188e+08 0.085005035 0.025382151 -42.433260 47.626098 6646.3358 7.6174628e+08 0.083997618 0.026093968 -42.522018 47.509376 6648.3150 7.2769090e+08 0.083046891 0.027175117 -42.610776 47.393992 6650.2941 6.9531738e+08 0.082453795 0.026322568 -42.699534 47.276631 6652.2733 6.6076579e+08 0.081966990 0.027325709 -42.788292 47.156808 6654.2524 6.3057897e+08 0.081157628 0.027928689 -42.877050 47.037837 6656.2316 6.0683508e+08 0.079349233 0.028226679 -42.965808 46.922451 6658.2107 5.7783764e+08 0.077971186 0.030434835 -43.054566 46.807065 6660.1899 5.5967766e+08 0.076502125 0.031798607 -43.139157 46.687514 6662.1691 5.3829430e+08 0.074991638 0.032949420 -43.223476 46.567691 6664.1482 5.1254300e+08 0.073696692 0.031663780 -43.317431 46.437725 6666.1274 4.8602146e+08 0.073660133 0.026933415 -43.415807 46.303105 6668.1065 4.5552227e+08 0.072899094 0.027565045 -43.503584 46.179644 6670.0857 4.3500706e+08 0.072362812 0.027288936 -43.587905 46.059821 6672.0648 4.1839026e+08 0.072106654 0.026917183 -43.672225 45.942220 6674.0440 4.0048069e+08 0.071443101 0.028991908 -43.756544 45.826836 6676.0232 3.8267390e+08 0.069470020 0.031728649 -43.839765 45.710353 6678.0023 3.6511135e+08 0.068715641 0.030935066 -43.919647 45.590530 6679.9815 3.4919954e+08 0.068968576 0.029456727 -43.999542 45.470720 6681.9606 3.3797376e+08 0.069666832 0.030394338 -44.083808 45.355315 6683.9398 3.2743385e+08 0.069883222 0.032565848 -44.168113 45.239949 6685.9189 3.1788259e+08 0.069407719 0.033675468 -44.259003 45.106493 6687.8981 3.0579888e+08 0.067215429 0.033842021 -44.352202 44.966694 6689.8773 2.8836855e+08 0.065347342 0.033226351 -44.434627 44.843056 6691.8564 2.7575282e+08 0.064358848 0.032799205 -44.514509 44.723233 6693.8356 2.6141309e+08 0.063489816 0.031317436 -44.591925 44.605877 6695.8147 2.5033954e+08 0.063316394 0.029709818 -44.667370 44.490493 6697.7939 2.3787295e+08 0.062597971 0.030191733 -44.744157 44.373766 6699.7730 2.2535230e+08 0.061158318 0.030877134 -44.824039 44.253943 6701.7522 2.1955135e+08 0.059406146 0.032513139 -44.903703 44.134338 6703.7314 2.1249891e+08 0.059507386 0.035505326 -44.979147 44.018954 6705.7105 2.0629238e+08 0.059455611 0.037931759 -45.054590 43.903569 6707.6897 2.0022141e+08 0.059023246 0.040088031 -45.130035 43.784652 6709.6688 1.9008079e+08 0.058043342 0.040707135 -45.205480 43.664828 6711.6480 1.8322343e+08 0.056095629 0.041429465 -45.287746 43.536978 6713.6271 1.7119689e+08 0.054148937 0.045954871 -45.375766 43.402357 6715.6063 1.6134344e+08 0.052507653 0.047998696 -45.453389 43.276780 6717.5855 1.5618983e+08 0.050637173 0.049838055 -45.524395 43.156959 6719.5646 1.5180735e+08 0.049126088 0.050833412 -45.596989 43.038724 6721.5438 1.4861906e+08 0.049460808 0.050467741 -45.672434 42.923338 6723.5229 1.3811018e+08 0.048078877 0.049660591 -45.747416 42.807489 6725.5021 1.2964003e+08 0.044256652 0.041262390 -45.818422 42.687666 6727.4812 1.2475798e+08 0.043226337 0.040319230 -45.889428 42.567843 6729.4604 1.2224615e+08 0.042621525 0.040738558 -45.970508 42.435427 6731.4396 1.1903317e+08 0.041086104 0.042624829 -46.053351 42.300808 6733.4187 1.1418259e+08 0.040158447 0.046197642 -46.125307 42.179797 6735.3979 1.1011812e+08 0.040954325 0.049715805 -46.196314 42.059973 6737.3770 1.0333354e+08 0.042441930 0.055336607 -46.267320 41.940149 6739.3562 97013492. 0.042877079 0.063262458 -46.338326 41.820326 6741.3353 93947968. 0.041559299 0.066715116 -46.407499 41.702337 6743.3145 94569774. 0.037959870 0.073169068 -46.474066 41.586953 6745.2937 95203447. 0.035574191 0.078690339 -46.543233 41.467668 6747.2728 87699082. 0.031050371 0.067267241 -46.626076 41.327871 6749.2520 78594763. 0.030370847 0.072208942 -46.705202 41.193648 6751.2311 72137891. 0.027354576 0.073809395 -46.771771 41.078262 6753.2103 70958825. 0.024710600 0.073657823 -46.838340 40.962876 6755.1894 68173453. 0.022201445 0.074522286 -46.904898 40.843183 6757.1686 63393327. 0.017701667 0.076228390 -46.971456 40.723380 6759.1478 57984752. 0.0050574175 0.075855611 -47.046026 40.592889 6761.1269 54171828. 0.016060000 0.077978711 -47.123690 40.458270 6763.1061 55292007. 0.045645900 0.076760818 -47.192589 40.335340