# # 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 = 50.351234 km # Date (UTC) = 2011-11-30T10:23:38.363 # Date (julian) = 2455895.93308290 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6497.5435 6.9538395e+10 0.034800559 0.031542453 -37.473881 53.161272 6499.6904 6.3317300e+10 0.041737137 0.032189844 -37.602603 53.054499 6501.8373 5.7387225e+10 0.048740571 0.032837234 -37.747022 52.934149 6503.9842 5.2239756e+10 0.055957437 0.033484625 -37.886595 52.817991 6506.1311 4.8067583e+10 0.063597528 0.034132016 -38.008748 52.716898 6508.2780 4.4720837e+10 0.071821578 0.034779406 -38.130902 52.615805 6510.4249 4.1897277e+10 0.080702668 0.035426797 -38.253054 52.511160 6512.5718 3.9177548e+10 0.090161884 0.036074188 -38.375205 52.405855 6514.7186 3.6668904e+10 0.10026207 0.036721579 -38.495380 52.300551 6516.8655 3.4384160e+10 0.11106678 0.037368969 -38.613322 52.195247 6519.0124 3.2133666e+10 0.12248294 0.038016360 -38.731264 52.090345 6521.1593 3.0043370e+10 0.13456912 0.038663751 -38.849204 51.989254 6523.3062 2.8062670e+10 0.14356305 0.039255011 -38.967144 51.888163 6525.4531 2.6157160e+10 0.15042731 0.039730501 -39.082058 51.784021 6527.6000 2.4282597e+10 0.15681932 0.041152094 -39.195804 51.678701 6529.7469 2.2624692e+10 0.16254690 0.043425558 -39.305150 51.577455 6531.8938 2.1295638e+10 0.16769303 0.046529634 -39.406240 51.483853 6534.0407 2.0197167e+10 0.17100444 0.047955945 -39.507331 51.390250 6536.1876 1.9114495e+10 0.17239474 0.047958356 -39.616976 51.288728 6538.3345 1.7946097e+10 0.17403211 0.049319565 -39.730704 51.183424 6540.4814 1.6765535e+10 0.17364213 0.051081526 -39.844433 51.078120 6542.6283 1.5674430e+10 0.17151930 0.051240772 -39.958162 50.972815 6544.7752 1.4696397e+10 0.16984634 0.052273194 -40.071891 50.867511 6546.9221 1.3772455e+10 0.16798407 0.053223251 -40.181707 50.766118 6549.0690 1.2904968e+10 0.16585362 0.054036574 -40.291223 50.665025 6551.2159 1.2089051e+10 0.16450604 0.055311526 -40.398403 50.561596 6553.3628 1.1327489e+10 0.16322674 0.055152708 -40.503707 50.456292 6555.5097 1.0601038e+10 0.16152423 0.054425124 -40.609772 50.350988 6557.6566 9.9266781e+09 0.15990133 0.053454573 -40.719287 50.245683 6559.8035 9.3090855e+09 0.15786586 0.052296493 -40.828803 50.140379 6561.9504 8.7456129e+09 0.15552344 0.050904369 -40.934922 50.035075 6564.0972 8.2267457e+09 0.15292567 0.048727525 -41.040227 49.929771 6566.2441 7.7297480e+09 0.15113550 0.047044773 -41.145538 49.824459 6568.3910 7.2850576e+09 0.14972732 0.045412204 -41.250858 49.719140 6570.5379 6.8795733e+09 0.14838201 0.044694678 -41.355930 49.613821 6572.6848 6.5079275e+09 0.14670856 0.043837971 -41.457022 49.508516 6574.8317 6.1602613e+09 0.14455087 0.042455529 -41.558115 49.403212 6576.9786 5.8155720e+09 0.14204628 0.040244979 -41.659208 49.297908 6579.1255 5.4952652e+09 0.13887685 0.037001495 -41.760301 49.192603 6581.2724 5.2017064e+09 0.13611278 0.035514119 -41.861393 49.087299 6583.4193 4.9334797e+09 0.13367781 0.034809431 -41.962484 48.981995 6585.5662 4.6835884e+09 0.13131804 0.033518106 -42.063575 48.876691 6587.7131 4.4392331e+09 0.12965766 0.033316365 -42.164668 48.767443 6589.8600 4.2101862e+09 0.12794029 0.031339825 -42.265761 48.657927 6592.0069 3.9925098e+09 0.12576827 0.028066834 -42.364485 48.550779 6594.1538 3.7872225e+09 0.12369301 0.026088103 -42.461364 48.445475 6596.3007 3.5907809e+09 0.12128144 0.025725907 -42.558244 48.340171 6598.4476 3.3982097e+09 0.11966621 0.025193476 -42.655124 48.234867 6600.5945 3.2184667e+09 0.11948668 0.026212002 -42.752004 48.129562 6602.7414 3.0402004e+09 0.11882755 0.026883979 -42.845454 48.024258 6604.8883 2.8718127e+09 0.11811876 0.026598698 -42.938122 47.918954 6607.0352 2.7203882e+09 0.11704073 0.025637567 -43.027911 47.818795 6609.1821 2.6017295e+09 0.11394163 0.023760011 -43.114036 47.725181 6611.3290 2.5082432e+09 0.11100161 0.024748682 -43.200161 47.631566 6613.4758 2.4177126e+09 0.10976284 0.023748180 -43.291321 47.528954 6615.6227 2.3183426e+09 0.10810330 0.023270692 -43.383988 47.423650 6617.7696 2.2087263e+09 0.10705253 0.023694421 -43.476655 47.318346 6619.9165 2.1055586e+09 0.10612245 0.024747059 -43.569323 47.213042 6622.0634 2.0070873e+09 0.10457962 0.024741110 -43.661901 47.107647 6624.2103 1.9181680e+09 0.10236870 0.024974896 -43.750356 46.998129 6626.3572 1.8287601e+09 0.10059240 0.026135771 -43.838812 46.888612 6628.5041 1.7441630e+09 0.098640330 0.025907771 -43.929994 46.781822 6630.6510 1.6640666e+09 0.096612915 0.025929906 -44.022663 46.676518 6632.7979 1.5847269e+09 0.094908678 0.026128021 -44.114179 46.571214 6634.9448 1.5159481e+09 0.093382592 0.026395761 -44.202634 46.465910 6637.0917 1.4419073e+09 0.092021625 0.026116500 -44.291089 46.360606 6639.2386 1.3750425e+09 0.091338905 0.025542796 -44.379545 46.255301 6641.3855 1.3168027e+09 0.091983653 0.025149609 -44.468000 46.149996 6643.5324 1.2597132e+09 0.091348391 0.025273002 -44.554244 46.044692 6645.6793 1.2099198e+09 0.090355932 0.025769903 -44.638488 45.939388 6647.8262 1.1592206e+09 0.089336278 0.026872766 -44.723370 45.833444 6649.9731 1.1041753e+09 0.088583109 0.026292354 -44.811838 45.723912 6652.1200 1.0600830e+09 0.087936985 0.027283529 -44.900306 45.614381 6654.2669 1.0112091e+09 0.087106648 0.027922539 -44.985490 45.508135 6656.4138 9.6519646e+08 0.085213979 0.028386573 -45.069734 45.402831 6658.5607 9.2326652e+08 0.083601362 0.031055413 -45.153978 45.297527 6660.7076 8.7791633e+08 0.082153069 0.032269128 -45.238221 45.192223 6662.8544 8.4405992e+08 0.080737662 0.032564876 -45.322342 45.086919 6665.0013 8.0949896e+08 0.079896397 0.028544930 -45.402373 44.981614 6667.1482 7.7746227e+08 0.079239331 0.027157908 -45.482404 44.876309 6669.2951 7.4584418e+08 0.077940578 0.028052579 -45.565195 44.771005 6671.4420 7.0891504e+08 0.077782486 0.026871648 -45.649438 44.665701 6673.5889 6.7828842e+08 0.076957619 0.028339998 -45.732498 44.559213 6675.7358 6.4878509e+08 0.074677438 0.031207724 -45.812530 44.449697 6677.8827 6.2364035e+08 0.073204342 0.031103344 -45.892562 44.340182 6680.0296 5.9974584e+08 0.073212900 0.029447811 -45.972593 44.234486 6682.1765 5.7595154e+08 0.073889647 0.030559402 -46.052624 44.129182 6684.3234 5.4969485e+08 0.074116902 0.032670503 -46.138749 44.015858 6686.4703 5.2321236e+08 0.073246595 0.034034712 -46.230215 43.895507 6688.6172 5.0099409e+08 0.070658935 0.033927660 -46.316471 43.782013 6690.7641 4.7759601e+08 0.069503481 0.033028298 -46.396503 43.676709 6692.9110 4.6036801e+08 0.068716627 0.031707455 -46.476191 43.571061 6695.0579 4.3965723e+08 0.068214362 0.029848842 -46.552010 43.461544 6697.2048 4.2135441e+08 0.067687498 0.030117180 -46.627829 43.352027 6699.3517 4.0387354e+08 0.066371259 0.031265939 -46.703656 43.245479 6701.4986 3.8439951e+08 0.064669409 0.032140988 -46.779487 43.140159 6703.6455 3.6749502e+08 0.064751072 0.035290392 -46.855313 43.034845 6705.7924 3.5169252e+08 0.064808039 0.038077262 -46.931130 42.929541 6707.9393 3.3786642e+08 0.064468570 0.040052279 -47.006948 42.824237 6710.0862 3.2668377e+08 0.063245571 0.040513358 -47.082767 42.718932 6712.2330 3.1476096e+08 0.061075609 0.042262649 -47.158587 42.613627 6714.3799 3.0287861e+08 0.058945799 0.047331972 -47.240751 42.496691 6716.5268 2.8824882e+08 0.057077603 0.049177344 -47.327403 42.371528 6718.6737 2.7415297e+08 0.054749584 0.050861703 -47.406407 42.256461 6720.8206 2.6085076e+08 0.054710924 0.050324682 -47.478014 42.151157 6722.9675 2.4766811e+08 0.053765883 0.049409091 -47.549622 42.045853 6725.1144 2.3923586e+08 0.049406779 0.041504547 -47.621228 41.940549 6727.2613 2.2968325e+08 0.047852074 0.040612238 -47.692834 41.835245 6729.4082 2.2332974e+08 0.047127484 0.040773344 -47.764441 41.729941 6731.5551 2.1743063e+08 0.045292359 0.042854791 -47.836049 41.624637 6733.7020 2.0983074e+08 0.044144080 0.047735688 -47.911607 41.511662 6735.8489 2.0083824e+08 0.045417534 0.050194601 -47.993445 41.386496 6737.9958 1.9031104e+08 0.046696338 0.057307694 -48.072122 41.267466 6740.1427 1.7905738e+08 0.046363552 0.064294123 -48.143730 41.162162 6742.2896 1.7142500e+08 0.043740141 0.069316381 -48.215337 41.056858 6744.4365 1.6254118e+08 0.039390874 0.078131019 -48.286944 40.951554 6746.5834 1.5561158e+08 0.036087146 0.072204868 -48.358550 40.846249 6748.7303 1.4880982e+08 0.034355667 0.070858889 -48.433194 40.732508 6750.8772 1.4553989e+08 0.031382353 0.073501931 -48.510218 40.612157 6753.0241 1.4421088e+08 0.028483757 0.073055165 -48.582586 40.497046 6755.1710 1.3852656e+08 0.026455667 0.074530391 -48.649981 40.387529 6757.3179 1.3206783e+08 0.024137314 0.075775450 -48.718430 40.276827 6759.4648 1.2277744e+08 0.024881733 0.075932107 -48.795454 40.156477 6761.6116 1.1807603e+08 0.027083901 0.078018759 -48.872168 40.036611 6763.7585 1.1390384e+08 0.030921136 0.078747921 -48.939563 39.931307 6765.9054 1.1050460e+08 0.032698740 0.079696484 -49.006957 39.826003 6768.0523 1.0595105e+08 0.029715182 0.081044333 -49.080689 39.710797 6770.1992 1.0104907e+08 0.025025972 0.087362919 -49.157713 39.590447 6772.3461 97415057. 0.021045332 0.092570084 -49.226703 39.478827 6774.4930 93685591. 0.017086584 0.097777250 -49.289896 39.373507 6776.6399 90613321. 0.013178794 0.10298442 -49.355953 39.265074 6778.7868 86058942. 0.0092382642 0.10819158 -49.432977 39.144724 6780.9337 80809617. 0.0052650956 0.11339875 -49.508204 39.025780 6783.0806 77058535. 0.0013329275 0.11860591 -49.571388 38.916262 6785.2275 73710480. -0.0026085098 0.12381308 -49.634571 38.806745 6787.3744 72268234. -0.0064851394 0.12902025 -49.704576 38.689040 6789.5213 70353401. -0.010443005 0.13422741 -49.776785 38.568690 6791.6682 68510143. -0.014488066 0.13943458 -49.848995 38.448340 6793.8151 64881768. -0.018813410 0.14464174 -49.921206 38.327989 6795.9620 61497776. -0.023407292 0.14984891 -49.987988 38.216686 6798.1089 58036025. -0.028517718 0.15505607 -50.051170 38.111381 6800.2558 56460593. -0.034317887 0.16026324 -50.116402 38.002659 6802.4027 54259789. -0.042929334 0.16547041 -50.188613 37.882309 6804.5496 51474640. -0.075607381 0.17067757 -50.260824 37.761959 6806.6965 50383682. -0.055485383 0.17588474 -50.333035 37.641608 6808.8434 48910356. -0.0070792657 0.18109190 -50.404897 37.521257