# # 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 = 42.433972 km # Date (UTC) = 2016-01-30T09:49:52.245 # Date (julian) = 2457417.90963247 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6497.9418 7.1366831e+10 0.033446052 0.031662565 -16.138096 62.935017 6499.6965 6.5304736e+10 0.040013643 0.032191690 -16.447890 62.769791 6501.4512 5.9206034e+10 0.046757606 0.032720814 -16.714670 62.625634 6503.2059 5.4127636e+10 0.053870192 0.033249938 -16.957057 62.493424 6504.9606 4.9920608e+10 0.061444832 0.033779063 -17.199445 62.361213 6506.7153 4.6272857e+10 0.069489170 0.034308187 -17.441784 62.228952 6508.4700 4.2541932e+10 0.077814791 0.034837311 -17.678612 62.091272 6510.2247 3.8970103e+10 0.086492259 0.035366436 -17.914387 61.954636 6511.9794 3.5775277e+10 0.095610883 0.035895560 -18.145756 61.822427 6513.7341 3.3093562e+10 0.10526919 0.036424684 -18.375050 61.688142 6515.4888 3.0725105e+10 0.11538359 0.036953809 -18.600910 61.550423 6517.2435 2.8602012e+10 0.12592464 0.037482933 -18.826741 61.412721 6518.9982 2.6724778e+10 0.13685748 0.038012057 -19.052548 61.275034 6520.7529 2.5007838e+10 0.14808362 0.038541182 -19.270180 61.137323 6522.5076 2.3452303e+10 0.15810606 0.039050163 -19.485022 60.999603 6524.2623 2.1954449e+10 0.16462266 0.039520130 -19.704989 60.861883 6526.0170 2.0604962e+10 0.16947641 0.039685868 -19.924073 60.724164 6527.7717 1.9342210e+10 0.17557214 0.041276704 -20.133407 60.586444 6529.5264 1.8131145e+10 0.17917048 0.043074222 -20.342727 60.448734 6531.2811 1.6916172e+10 0.18091344 0.045637755 -20.552011 60.311047 6533.0358 1.5651704e+10 0.18268379 0.047534780 -20.758653 60.173344 6534.7904 1.4436950e+10 0.18249084 0.048165676 -20.962478 60.035625 6536.5451 1.3436883e+10 0.18092086 0.048278256 -21.143582 59.913258 6538.2998 1.2651729e+10 0.18042384 0.049302688 -21.313428 59.798496 6540.0545 1.1973048e+10 0.17993674 0.050879868 -21.497211 59.669793 6541.8092 1.1273125e+10 0.17754247 0.051064100 -21.695481 59.526597 6543.5639 1.0488122e+10 0.17567587 0.051529900 -21.890066 59.387095 6545.3186 9.7374647e+09 0.17431562 0.052458422 -22.082874 59.249376 6547.0733 9.0037984e+09 0.17283733 0.053315250 -22.275681 59.106923 6548.8280 8.3761163e+09 0.17071389 0.053914923 -22.466870 58.964747 6550.5827 7.8748107e+09 0.16938132 0.055131269 -22.622946 58.845394 6552.3374 7.4593539e+09 0.16790952 0.055501838 -22.779022 58.726040 6554.0921 7.0837857e+09 0.16536516 0.054834313 -22.957319 58.590817 6555.8468 6.6470711e+09 0.16314275 0.054141836 -23.139068 58.452854 6557.6015 6.1849976e+09 0.16132585 0.053489077 -23.320858 58.309626 6559.3562 5.7633906e+09 0.15854123 0.052346975 -23.495539 58.172000 6561.1109 5.4539251e+09 0.15526114 0.051318027 -23.647025 58.052647 6562.8656 5.1809871e+09 0.15245288 0.050056248 -23.799904 57.931952 6564.6203 4.8913053e+09 0.14932022 0.048490476 -23.976186 57.788724 6566.3750 4.6085513e+09 0.14614226 0.046970747 -24.144276 57.651253 6568.1297 4.3543944e+09 0.14361282 0.045652439 -24.286551 57.531924 6569.8844 4.1516777e+09 0.14136009 0.044909985 -24.430595 57.411112 6571.6391 3.9526091e+09 0.13913340 0.044328726 -24.601367 57.267884 6573.3938 3.7210344e+09 0.13718401 0.043341474 -24.765115 57.130548 6575.1485 3.5187824e+09 0.13540408 0.042225728 -24.907421 57.011197 6576.9032 3.3384168e+09 0.13320972 0.040331808 -25.051295 56.889836 6578.6579 3.1592784e+09 0.13070793 0.037610741 -25.216559 56.741099 6580.4126 2.9769673e+09 0.12876119 0.036139470 -25.373682 56.599804 6582.1673 2.8038239e+09 0.12690471 0.035248274 -25.506778 56.480474 6583.9220 2.6845044e+09 0.12463280 0.034555004 -25.639877 56.361143 6585.6767 2.5950486e+09 0.12253754 0.033429789 -25.773001 56.241791 6587.4314 2.5013932e+09 0.12067361 0.033253944 -25.906126 56.122439 6589.1861 2.3822710e+09 0.11852586 0.032676837 -26.063105 55.976764 6590.9408 2.2465011e+09 0.11612057 0.029312097 -26.220346 55.830393 6592.6955 2.1175965e+09 0.11408717 0.027398020 -26.348879 55.711041 6594.4502 2.0039065e+09 0.11166798 0.025925408 -26.477413 55.591690 6596.2049 1.9232021e+09 0.10872881 0.025726342 -26.601805 55.472337 6597.9596 1.8463179e+09 0.10659600 0.025419928 -26.725748 55.352984 6599.7143 1.7593029e+09 0.10517621 0.024972689 -26.871594 55.212392 6601.4689 1.6693918e+09 0.10431475 0.027266538 -27.025804 55.063689 6603.2236 1.5790504e+09 0.10277774 0.026530876 -27.148364 54.941636 6604.9783 1.5031532e+09 0.10158345 0.026652184 -27.267716 54.822284 6606.7330 1.4428411e+09 0.099959925 0.026186712 -27.390417 54.699583 6608.4877 1.3903873e+09 0.097171201 0.023719476 -27.514360 54.575640 6610.2424 1.3254677e+09 0.094651386 0.024234621 -27.648931 54.438033 6611.9971 1.2576736e+09 0.092863937 0.024322579 -27.792160 54.289295 6613.7518 1.1854150e+09 0.092320813 0.023849439 -27.914443 54.162180 6615.5065 1.1190360e+09 0.091377413 0.023267116 -28.029204 54.042829 6617.2612 1.0724444e+09 0.090569306 0.023525858 -28.146512 53.920932 6619.0159 1.0281156e+09 0.089988491 0.024529756 -28.265840 53.797014 6620.7706 9.8683054e+08 0.089433251 0.025015529 -28.383440 53.673086 6622.5253 9.4239308e+08 0.088360832 0.024618171 -28.498202 53.549143 6624.2800 8.9694291e+08 0.086919416 0.025012201 -28.612046 53.426118 6626.0347 8.6172491e+08 0.085960162 0.026546677 -28.722217 53.306765 6627.7894 8.2561483e+08 0.084429331 0.025621747 -28.832866 53.186774 6629.5441 7.8366692e+08 0.083405206 0.026010729 -28.965077 53.038037 6631.2988 7.3858403e+08 0.081990852 0.025961118 -29.092738 52.894417 6633.0535 6.9404512e+08 0.081056026 0.026161594 -29.202910 52.770476 6634.8082 6.5918265e+08 0.079859548 0.026385797 -29.312952 52.646536 6636.5629 6.3023579e+08 0.078532322 0.026331157 -29.418512 52.522618 6638.3176 6.0307511e+08 0.077687537 0.025657806 -29.524073 52.398700 6640.0723 5.7813883e+08 0.077729560 0.025261807 -29.633549 52.274760 6641.8270 5.5682389e+08 0.077732457 0.025151109 -29.743721 52.150816 6643.5817 5.4110829e+08 0.076866028 0.025280446 -29.847734 52.026872 6645.3364 5.2210347e+08 0.076023296 0.025609268 -29.948724 51.902930 6647.0911 5.0008217e+08 0.075077237 0.026485735 -30.051974 51.778987 6648.8458 4.7175729e+08 0.074247072 0.027530451 -30.157555 51.655044 6650.6005 4.4511690e+08 0.074252046 0.026392703 -30.261695 51.532542 6652.3552 4.2656072e+08 0.074125977 0.027348244 -30.362686 51.413190 6654.1099 4.1048275e+08 0.073689133 0.027989419 -30.463677 51.293217 6655.8646 4.0442264e+08 0.072350962 0.027967458 -30.564667 51.169274 6657.6193 3.9179441e+08 0.071267536 0.029619440 -30.665657 51.045332 6659.3740 3.7320148e+08 0.070174598 0.031756589 -30.780682 50.897695 6661.1287 3.4879414e+08 0.069293463 0.032600479 -30.894267 50.752490 6662.8834 3.2191325e+08 0.068631377 0.032548656 -30.995258 50.628547 6664.6381 3.0352322e+08 0.068068186 0.029871470 -31.096250 50.504603 6666.3928 2.8956015e+08 0.068057513 0.026985128 -31.192820 50.380660 6668.1475 2.7349566e+08 0.067510403 0.027601258 -31.289219 50.256717 6669.9021 2.5946890e+08 0.067144733 0.027429134 -31.382019 50.132774 6671.6568 2.4327419e+08 0.067076009 0.026874709 -31.473828 50.008831 6673.4115 2.2666591e+08 0.066726728 0.028074709 -31.568419 49.884888 6675.1662 2.1252043e+08 0.065401051 0.030116767 -31.664819 49.760945 6676.9209 1.9378603e+08 0.063733911 0.032307263 -31.759256 49.637002 6678.6756 1.7719897e+08 0.063361665 0.030484721 -31.851066 49.513060 6680.4303 1.6162702e+08 0.064150857 0.029534343 -31.942871 49.389123 6682.1850 1.5098880e+08 0.064766046 0.030565912 -32.034661 49.265207 6683.9397 1.4128345e+08 0.064987564 0.032565761 -32.126130 49.141289 6685.6944 1.3021720e+08 0.064793085 0.033438321 -32.213351 49.017345 6687.4491 1.2110447e+08 0.063217952 0.034092420 -32.300572 48.893401 6689.2038 1.1143676e+08 0.061292529 0.033832554 -32.387790 48.765363 6690.9585 1.0915828e+08 0.060785282 0.033006017 -32.475009 48.636828 6692.7132 1.0288266e+08 0.060403889 0.031937116 -32.565503 48.511571 6694.4679 97156403. 0.060034687 0.030605224 -32.657313 48.387630 6696.2226 93449414. 0.060146238 0.029768275 -32.744210 48.263688 6697.9773 92049226. 0.059737346 0.030214945 -32.826839 48.139745 6699.7320 92145902. 0.058654048 0.030915002 -32.911104 48.015802 6701.4867 89482897. 0.057447212 0.032123575 -32.998322 47.891859 6703.2414 95278811. 0.057575839 0.034279290 -33.084720 47.767921 6704.9961 97241386. 0.057901356 0.036666689 -33.167332 47.644003 6706.7508 1.0037727e+08 0.057735541 0.039753101 -33.249944 47.520085 6708.5055 1.0290311e+08 0.057531113 0.040594039 -33.332573 47.396141 6710.2602 1.0027271e+08 0.056700433 0.040547423 -33.415202 47.272197 6712.0149 1.0425661e+08 0.055053294 0.041857596 -33.497831 47.148254 6713.7696 1.0548520e+08 0.053521138 0.046470039 -33.580460 47.024311 6715.5243 1.0232182e+08 0.052386899 0.047914807 -33.663088 46.900368 6717.2790 1.0088894e+08 0.050913607 0.049857012 -33.745717 46.776425 6719.0337 96195966. 0.049245368 0.051337845 -33.826215 46.652482 6720.7884 93305628. 0.049956095 0.050328420 -33.904252 46.528539 6722.5431 91612375. 0.049656866 0.049933828 -33.983601 46.403285 6724.2978 92596369. 0.047449943 0.047440114 -34.066229 46.274753 6726.0525 91612300. 0.044788381 0.040951841 -34.148364 46.146715 6727.8072 87077355. 0.044531113 0.039885015 -34.226387 46.022797 6729.5619 84567242. 0.044045897 0.040670934 -34.304411 45.898879 6731.3166 76719437. 0.043146433 0.042380031 -34.382447 45.774938 6733.0713 72850105. 0.042706187 0.044311166 -34.460484 45.650995 6734.8260 67021976. 0.043270949 0.049303904 -34.535080 45.527051 6736.5806 58210401. 0.045601452 0.052550184 -34.608528 45.403107 6738.3353 56481563. 0.047019825 0.059167327 -34.684599 45.279165 6740.0900 52824535. 0.047611579 0.064204186 -34.762638 45.155224 6741.8447 51814221. 0.046705592 0.068167943 -34.838872 45.031282 6743.5994 51450257. 0.044207444 0.075091237 -34.912320 44.907339 6745.3541 49591739. 0.044739330 0.078715762 -34.985767 44.783396 6747.1088 46242880. 0.053352922 0.067323694 -35.059215 44.659453 6748.8635 42536470. 0.044656335 0.071559965 -35.132662 44.535511 6750.6182 42340307. 0.017948223 0.073059781 -35.206094 44.411593