# # 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 = 37.626877 km # Date (UTC) = 2011-01-03T09:27:06.398 # Date (julian) = 2455564.89382405 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6499.5779 9.2993230e+10 0.042177675 0.032155923 -28.345439 42.640928 6501.7550 8.5252346e+10 0.050711260 0.032812422 -28.430868 42.529870 6503.9321 7.6441687e+10 0.059370863 0.033468920 -28.516297 42.418813 6506.1092 6.8267621e+10 0.068269312 0.034125419 -28.601726 42.307756 6508.2863 6.0966361e+10 0.077476295 0.034781917 -28.687155 42.196699 6510.4634 5.4815112e+10 0.087138636 0.035438416 -28.761292 42.092902 6512.6405 5.0308109e+10 0.097588318 0.036094914 -28.833429 41.990389 6514.8176 4.6487226e+10 0.10868991 0.036751413 -28.908436 41.886033 6516.9947 4.2773995e+10 0.12026678 0.037407911 -28.993865 41.774976 6519.1718 3.9271267e+10 0.13232870 0.038064410 -29.079294 41.663920 6521.3489 3.5738722e+10 0.14471392 0.038720908 -29.160997 41.552847 6523.5260 3.2548094e+10 0.15315508 0.039309476 -29.242167 41.441773 6525.7031 2.9753569e+10 0.15949837 0.039701974 -29.318514 41.337297 6527.8802 2.7433281e+10 0.16610252 0.041355492 -29.390652 41.238581 6530.0573 2.5483246e+10 0.17183774 0.043908885 -29.462790 41.139866 6532.2344 2.3558932e+10 0.17598095 0.046879989 -29.543046 41.030041 6534.4115 2.1584161e+10 0.17805740 0.048059663 -29.624204 40.918983 6536.5886 1.9700131e+10 0.17844090 0.048317115 -29.698198 40.812702 6538.7657 1.8132866e+10 0.17830259 0.049529524 -29.766540 40.710189 6540.9428 1.6825512e+10 0.17676837 0.051299493 -29.834882 40.607676 6543.1199 1.5630962e+10 0.17459175 0.051413355 -29.915079 40.497259 6545.2970 1.4448456e+10 0.17240735 0.052458227 -29.996237 40.386203 6547.4741 1.3269519e+10 0.17022882 0.053467645 -30.074899 40.275147 6549.6512 1.2145066e+10 0.16816624 0.054629875 -30.151784 40.164090 6551.8283 1.1117546e+10 0.16625018 0.055526487 -30.226597 40.056027 6554.0054 1.0257241e+10 0.16359850 0.054832493 -30.294948 39.957297 6556.1825 9.5275242e+09 0.16116835 0.053986299 -30.363299 39.858567 6558.3596 8.8619880e+09 0.15874545 0.052932909 -30.434248 39.752326 6560.5367 8.1931881e+09 0.15567198 0.051790435 -30.506862 39.641270 6562.7138 7.5065273e+09 0.15274784 0.050200729 -30.580622 39.529068 6564.8909 6.8351032e+09 0.15000133 0.048367857 -30.657508 39.413739 6567.0680 6.2329969e+09 0.14740915 0.046559722 -30.734394 39.298410 6569.2451 5.7342841e+09 0.14476346 0.044868374 -30.799839 39.198482 6571.4222 5.3385628e+09 0.14235737 0.044387974 -30.864384 39.099765 6573.5993 5.0025530e+09 0.13916433 0.043176589 -30.932548 38.997430 6575.7764 4.6514848e+09 0.13586139 0.041595774 -31.009434 38.886373 6577.9535 4.3060418e+09 0.13238361 0.038722718 -31.086320 38.775317 6580.1306 4.0036581e+09 0.12858148 0.036400098 -31.151455 38.676010 6582.3077 3.7601688e+09 0.12472012 0.035210073 -31.216000 38.577293 6584.4848 3.5422039e+09 0.12075555 0.034251446 -31.283117 38.474643 6586.6619 3.3134256e+09 0.11720585 0.033162740 -31.355742 38.363570 6588.8390 3.0708301e+09 0.11435513 0.033099759 -31.428368 38.252497 6591.0161 2.8261056e+09 0.11153177 0.029183794 -31.496807 38.141440 6593.1932 2.6029641e+09 0.10955564 0.026922647 -31.565149 38.030384 6595.3703 2.4132313e+09 0.10706320 0.025661967 -31.631075 37.927180 6597.5474 2.2633944e+09 0.10470841 0.025550004 -31.695621 37.828463 6599.7245 2.1304538e+09 0.10345394 0.024973302 -31.760212 37.729650 6601.9016 1.9996171e+09 0.10293800 0.027470269 -31.832801 37.614375 6604.0786 1.8649181e+09 0.10136778 0.026117976 -31.905415 37.499047 6606.2557 1.7301649e+09 0.10087219 0.027044392 -31.975204 37.386544 6608.4328 1.6039070e+09 0.098286610 0.023720927 -32.043546 37.275488 6610.6099 1.4900936e+09 0.095195105 0.024585769 -32.109457 37.168383 6612.7870 1.3922567e+09 0.093600978 0.023732702 -32.170205 37.069667 6614.9641 1.3091377e+09 0.092244203 0.023276234 -32.230953 36.970950 6617.1412 1.2354774e+09 0.090634714 0.023486078 -32.296922 36.863751 6619.3183 1.1588302e+09 0.089736408 0.024602725 -32.365275 36.752678 6621.4954 1.0873253e+09 0.088538810 0.024925230 -32.433624 36.641610 6623.6725 1.0133832e+09 0.086584371 0.024740992 -32.501967 36.530552 6625.8496 9.4477152e+08 0.085192303 0.026411480 -32.570229 36.419581 6628.0267 8.8683991e+08 0.083201508 0.025713951 -32.627210 36.320835 6630.2038 8.3693381e+08 0.081461098 0.025928804 -32.684162 36.222120 6632.3809 7.9411663e+08 0.079453678 0.026078023 -32.745337 36.118830 6634.5580 7.4930695e+08 0.077726934 0.026367549 -32.813680 36.007773 6636.7351 7.0053500e+08 0.076161321 0.026264269 -32.881896 35.896717 6638.9122 6.5111429e+08 0.075230499 0.025631899 -32.945967 35.785658 6641.0893 6.0555481e+08 0.076226395 0.025148604 -33.010038 35.674600 6643.2664 5.6197459e+08 0.076126535 0.025232847 -33.074109 35.563543 6645.4435 5.2267007e+08 0.075508620 0.025659463 -33.138181 35.452486 6647.6206 4.8656201e+08 0.074808245 0.026764545 -33.201102 35.345711 6649.7977 4.5797004e+08 0.074255222 0.026534055 -33.261858 35.246982 6651.9748 4.3381865e+08 0.073971206 0.027231232 -33.322614 35.148252 6654.1519 4.0964412e+08 0.073476977 0.027971502 -33.385737 35.040723 6656.3290 3.8515666e+08 0.071881101 0.028312204 -33.449809 34.929667 6658.5061 3.5974558e+08 0.070589463 0.030958706 -33.512289 34.818610 6660.6832 3.3556676e+08 0.069394393 0.032247018 -33.572088 34.707552 6662.8603 3.1393232e+08 0.068306022 0.032561578 -33.632023 34.596494 6665.0374 2.9401670e+08 0.067775595 0.028485809 -33.696094 34.485437 6667.2145 2.7352981e+08 0.067433179 0.027182256 -33.760164 34.374380 6669.3916 2.5555882e+08 0.066490517 0.027953478 -33.819320 34.271844 6671.5687 2.4101204e+08 0.066479971 0.026873453 -33.876272 34.173129 6673.7458 2.2692590e+08 0.065813155 0.028574648 -33.933385 34.073716 6675.9229 2.1746348e+08 0.063562394 0.031566089 -33.993185 33.962658 6678.1000 2.0753494e+08 0.062436042 0.030869716 -34.052985 33.851600 6680.2771 1.9346928e+08 0.062704688 0.029501258 -34.112784 33.743598 6682.4542 1.8178023e+08 0.063335865 0.030771583 -34.172584 33.636813 6684.6313 1.7090250e+08 0.063337044 0.032686128 -34.233983 33.528428 6686.8084 1.6325024e+08 0.061977576 0.034231433 -34.298055 33.417371 6688.9855 1.5872787e+08 0.059188461 0.034012681 -34.361986 33.306314 6691.1626 1.5307261e+08 0.058414418 0.032962896 -34.421795 33.195239 6693.3397 1.4462383e+08 0.057654917 0.031487546 -34.481603 33.084165 6695.5168 1.3446791e+08 0.057359469 0.029764541 -34.541406 32.973103 6697.6939 1.2558133e+08 0.056767331 0.030179081 -34.601206 32.862047 6699.8710 1.2122531e+08 0.055361161 0.030786738 -34.659505 32.750990 6702.0481 1.1818806e+08 0.053766231 0.032915146 -34.715034 32.639932 6704.2252 1.1406356e+08 0.054251383 0.036288143 -34.770606 32.528874 6706.4023 1.0536973e+08 0.054228306 0.039146590 -34.830406 32.417817 6708.5794 97030958. 0.053824788 0.040674532 -34.890206 32.306761 6710.7565 92669730. 0.052395139 0.040644572 -34.950005 32.198562 6712.9336 89955143. 0.050515737 0.043563353 -35.009806 32.091775 6715.1107 86403036. 0.048618584 0.047491814 -35.068205 31.983589 6717.2878 80003569. 0.046587828 0.049856466 -35.123734 31.872532 6719.4649 72461669. 0.044698650 0.050928147 -35.179266 31.761475 6721.6420 67039893. 0.044912252 0.050497337 -35.239006 31.650417 6723.8191 64265593. 0.043034827 0.049825771 -35.298806 31.539360 6725.9962 62430385. 0.038835307 0.040953741 -35.355848 31.431061 6728.1733 61378336. 0.037574584 0.039873722 -35.411377 31.324275 6730.3504 57623649. 0.034089749 0.040859342 -35.466906 31.216189 6732.5275 53787083. 0.019684278 0.043837320 -35.522436 31.105131 6734.7046 52036955. 0.030231042 0.049311206 -35.577965 30.994073 6736.8817 51556935. 0.055855009 0.053688310 -35.633500 30.883000