# # 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 = 56.344186 km # Date (UTC) = 2014-01-07T09:40:34.544 # Date (julian) = 2456664.90317759 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6496.9554 6.1212866e+10 0.031228995 0.031365129 109.20402 36.655466 6498.9805 5.7203990e+10 0.038179060 0.031975778 109.26759 36.544219 6501.0055 5.3321309e+10 0.045341470 0.032586426 109.33116 36.434295 6503.0306 4.9686313e+10 0.052795930 0.033197075 109.39473 36.327020 6505.0556 4.6507617e+10 0.060675455 0.033807724 109.45830 36.219746 6507.0807 4.3467150e+10 0.068972481 0.034418372 109.52187 36.112472 6509.1057 4.0562859e+10 0.077725732 0.035029021 109.58544 36.005198 6511.1308 3.7953161e+10 0.087039599 0.035639670 109.64690 35.901484 6513.1558 3.5732563e+10 0.097024380 0.036250318 109.70341 35.806119 6515.1809 3.3847897e+10 0.10768390 0.036860967 109.75992 35.710753 6517.2059 3.2008831e+10 0.11887596 0.037471616 109.81974 35.607958 6519.2310 3.0068487e+10 0.13048213 0.038082264 109.88331 35.496711 6521.2560 2.8050358e+10 0.14245314 0.038692913 109.94688 35.385464 6523.2811 2.6120960e+10 0.15119855 0.039248781 110.00667 35.277995 6525.3061 2.4290413e+10 0.15823461 0.039747275 110.06626 35.170721 6527.3312 2.2611221e+10 0.16435080 0.040956922 110.12586 35.063446 6529.3562 2.1022558e+10 0.16905144 0.042803253 110.18546 34.956172 6531.3813 1.9507590e+10 0.17318321 0.045783661 110.24506 34.848898 6533.4063 1.8058222e+10 0.17647912 0.047692272 110.30465 34.741623 6535.4314 1.6674861e+10 0.17711058 0.048037158 110.36425 34.634349 6537.4564 1.5412462e+10 0.17710434 0.048900421 110.42544 34.527075 6539.4815 1.4273204e+10 0.17590884 0.050226471 110.48901 34.419801 6541.5066 1.3200513e+10 0.17374178 0.051162259 110.55257 34.312526 6543.5316 1.2187779e+10 0.17168235 0.051521414 110.60913 34.201744 6545.5567 1.1264168e+10 0.16985342 0.052460554 110.66475 34.090497 6547.5817 1.0446658e+10 0.16844086 0.053508575 110.71940 33.985068 6549.6068 9.7724368e+09 0.16680849 0.054584609 110.77239 33.889702 6551.6318 9.2076916e+09 0.16526842 0.055457524 110.82537 33.794336 6553.6569 8.6931054e+09 0.16344162 0.055004875 110.88189 33.692598 6555.6819 8.1737189e+09 0.16163805 0.054280402 110.94149 33.585323 6557.7070 7.6465690e+09 0.16007547 0.053422986 111.00101 33.478049 6559.7320 7.1390742e+09 0.15793189 0.052304558 111.05663 33.370775 6561.7571 6.6740716e+09 0.15548627 0.050999620 111.11226 33.263501 6563.7821 6.2630586e+09 0.15294275 0.049023649 111.16987 33.156227 6565.8072 5.8828237e+09 0.15095605 0.047401859 111.22947 33.048952 6567.8322 5.5451772e+09 0.14953895 0.045913534 111.28907 32.941678 6569.8573 5.2232672e+09 0.14807764 0.044908219 111.34475 32.834404 6571.8823 4.9066137e+09 0.14637112 0.044262299 111.40038 32.727130 6573.9074 4.6368828e+09 0.14391161 0.042929347 111.45311 32.625428 6575.9324 4.4092256e+09 0.14155314 0.041439207 111.50255 32.530076 6577.9575 4.2300417e+09 0.13907819 0.038716433 111.55200 32.434724 6579.9825 4.0556659e+09 0.13669540 0.036530367 111.60537 32.331791 6582.0076 3.8692904e+09 0.13467118 0.035291737 111.66099 32.224517 6584.0326 3.6743285e+09 0.13293980 0.034497745 111.71662 32.117241 6586.0577 3.4877515e+09 0.13144728 0.033170551 111.77225 32.009951 6588.0827 3.3186023e+09 0.13045875 0.033352308 111.82788 31.902660 6590.1078 3.1550667e+09 0.12883664 0.030861608 111.88351 31.795380 6592.1328 3.0063058e+09 0.12681372 0.027944522 111.93913 31.688106 6594.1579 2.8595952e+09 0.12488241 0.026085863 111.99441 31.580832 6596.1829 2.7186249e+09 0.12260713 0.025726442 112.04606 31.473557 6598.2080 2.5902887e+09 0.12112530 0.025307874 112.09772 31.366283 6600.2330 2.4591507e+09 0.12083997 0.025468918 112.15163 31.259009 6602.2581 2.3326852e+09 0.12045186 0.027296407 112.20725 31.151735 6604.2831 2.2170010e+09 0.11937151 0.026239384 112.26237 31.045076 6606.3082 2.1183234e+09 0.11894390 0.026950191 112.30828 30.949723 6608.3332 2.0427482e+09 0.11655299 0.023723561 112.35419 30.854371 6610.3583 1.9751021e+09 0.11365329 0.024345299 112.40224 30.756395 6612.3833 1.9006835e+09 0.11178231 0.024034348 112.45786 30.649121 6614.4084 1.8226661e+09 0.11068109 0.023659139 112.51349 30.541846 6616.4334 1.7409962e+09 0.10918282 0.023350325 112.56632 30.437366 6618.4585 1.6621907e+09 0.10846679 0.024116998 112.61797 30.334065 6620.4835 1.5978192e+09 0.10751703 0.024923013 112.66962 30.230021 6622.5086 1.5308647e+09 0.10606795 0.024622627 112.72128 30.122730 6624.5336 1.4715432e+09 0.10442511 0.025147957 112.77294 30.015440 6626.5587 1.4108438e+09 0.10301332 0.025879098 112.82459 29.908160 6628.5837 1.3480080e+09 0.10205952 0.025940094 112.87624 29.800886 6630.6088 1.2922303e+09 0.10089528 0.025929802 112.92789 29.693612 6632.6338 1.2382042e+09 0.099798784 0.026108346 112.97954 29.586339 6634.6589 1.1908142e+09 0.098647475 0.026374904 113.03119 29.479066 6636.6839 1.1476883e+09 0.097377873 0.026284155 113.08284 29.371792 6638.7090 1.0992089e+09 0.096572854 0.025640754 113.13449 29.264518 6640.7340 1.0538639e+09 0.097183266 0.025180842 113.18504 29.159081 6642.7591 1.0114681e+09 0.097038457 0.025182759 113.22742 29.067259 6644.7841 9.7903450e+08 0.096082316 0.025428354 113.26980 28.975437 6646.8092 9.5234377e+08 0.094896125 0.026339007 113.31484 28.879175 6648.8342 9.2324967e+08 0.093691244 0.027522723 113.36649 28.771901 6650.8593 8.9511134e+08 0.093214760 0.026451952 113.41814 28.664627 6652.8843 8.6450455e+08 0.092762959 0.027493837 113.46673 28.557353 6654.9094 8.3365329e+08 0.091562304 0.027648819 113.51441 28.450080 6656.9344 8.0286080e+08 0.089616482 0.028843567 113.56310 28.343814 6658.9595 7.7255934e+08 0.088013815 0.031762748 113.61475 28.240513 6660.9845 7.4003839e+08 0.086701002 0.032520895 113.66639 28.137212 6663.0096 7.1174432e+08 0.085471633 0.032480556 113.71512 28.030972 6665.0346 6.8480461e+08 0.084703907 0.028490374 113.76281 27.923681 6667.0597 6.6046532e+08 0.084111369 0.027125383 113.81049 27.816394 6669.0847 6.3639032e+08 0.082843195 0.028268669 113.85817 27.709120 6671.1098 6.1308931e+08 0.082961320 0.026866913 113.90584 27.601846 6673.1348 5.9118598e+08 0.082650128 0.027660882 113.95352 27.497366 6675.1599 5.7269920e+08 0.081157479 0.030104609 114.00120 27.394065 6677.1849 5.5578071e+08 0.079292508 0.032095303 114.04888 27.290024 6679.2100 5.3745867e+08 0.078890936 0.030094242 114.09656 27.182751 6681.2350 5.2148290e+08 0.079857532 0.029837680 114.14424 27.075478 6683.2601 5.0371135e+08 0.080365325 0.031569752 114.19191 26.970863 6685.2851 4.8783381e+08 0.080094041 0.033006021 114.23959 26.867562 6687.3102 4.6891917e+08 0.078303969 0.034169901 114.28726 26.763656 6689.3352 4.5265571e+08 0.075857925 0.033714249 114.33494 26.656381 6691.3603 4.3577507e+08 0.074966054 0.032916256 114.38262 26.549106 6693.3853 4.2101910e+08 0.074097669 0.031471891 114.43030 26.444357 6695.4104 4.0755257e+08 0.073655726 0.029784088 114.47797 26.341056 6697.4354 3.8847010e+08 0.073054778 0.030146372 114.52565 26.237284 6699.4605 3.7784183e+08 0.071579491 0.031165523 114.57333 26.130010 6701.4856 3.6686225e+08 0.069754956 0.032121886 114.62101 26.022736 6703.5106 3.5773323e+08 0.069618587 0.034952921 114.66629 25.917852 6705.5357 3.4699807e+08 0.069533606 0.037620886 114.71000 25.814551 6707.5607 3.3263120e+08 0.069078906 0.040106506 114.75404 25.711249 6709.5858 3.2099410e+08 0.068049383 0.040759976 114.80172 25.607932 6711.6108 3.1400242e+08 0.065930405 0.041387160 114.84941 25.504615 6713.6359 3.0614870e+08 0.063751063 0.045986371 114.89838 25.390342 6715.6609 2.9440399e+08 0.061957204 0.048054543 114.94833 25.267741 6717.6860 2.8167242e+08 0.059954354 0.049831839 114.99745 25.152202 6719.7110 2.6982690e+08 0.058446342 0.050694332 115.04512 25.048901 6721.7361 2.6026564e+08 0.058532204 0.050525676 115.09280 24.945600 6723.7611 2.5275489e+08 0.056668212 0.049793426 115.13710 24.838926 6725.7862 2.4235070e+08 0.052681358 0.041084945 115.18081 24.731652 6727.8112 2.3066645e+08 0.051701915 0.039879624 115.22451 24.625697 6729.8363 2.2169380e+08 0.050440526 0.040488039 115.26822 24.522397 6731.8613 2.1394433e+08 0.048600937 0.043464190 115.31192 24.419096 6733.8864 2.1082915e+08 0.047315678 0.048736617 115.35563 24.315794 6735.9114 2.0492903e+08 0.048538521 0.050260962 115.39933 24.212493 6737.9365 1.9810636e+08 0.049498387 0.057118688 115.44490 24.104789 6739.9615 1.9030834e+08 0.049093851 0.064003260 115.49485 23.986729 6741.9866 1.8112166e+08 0.046773077 0.068572427 115.54420 23.869703 6744.0116 1.7376889e+08 0.041892649 0.077802395 115.58790 23.762430 6746.0367 1.6870030e+08 0.040506409 0.078561015 115.63160 23.655157 6748.0617 1.6378803e+08 0.036258511 0.067341584 115.67531 23.550184 6750.0868 1.6095785e+08 0.033281762 0.072152288 115.71901 23.446883 6752.1118 1.5845625e+08 0.030262132 0.074005084 115.76311 23.342665 6754.1369 1.5155142e+08 0.028863513 0.075993372 115.81305 23.224604 6756.1619 1.4778512e+08 0.026167694 0.074583546 115.86300 23.106543 6758.1870 1.4412200e+08 0.025567889 0.074100692 115.90758 23.001174 6760.2120 1.4023907e+08 0.025866024 0.076465581 115.95129 22.897872 6762.2371 1.3678751e+08 0.029628634 0.077668432 115.99499 22.794571 6764.2621 1.3056233e+08 0.032154142 0.079495843 116.03869 22.691270 6766.2872 1.2400145e+08 0.033051082 0.080363332 116.08239 22.587969 6768.3122 1.1905993e+08 0.029456145 0.081979471 116.12751 22.472476 6770.3373 1.1322007e+08 0.025029075 0.087697733 116.17292 22.354415 6772.3623 1.0741782e+08 0.021067648 0.092609371 116.21727 22.245552 6774.3874 1.0236879e+08 0.017112769 0.097521009 116.26098 22.142236 6776.4124 97414654. 0.013130370 0.10243265 116.30487 22.037338 6778.4375 96121857. 0.0092981526 0.10734429 116.35028 21.919278 6780.4625 92478355. 0.0053021132 0.11225592 116.39569 21.801219 6782.4876 88593592. 0.0012142833 0.11716756 116.43955 21.696515 6784.5126 85649932. -0.0029257504 0.12207920 116.48326 21.593213 6786.5377 82041995. -0.0072876403 0.12699084 116.52762 21.484184 6788.5627 78428959. -0.011919477 0.13190248 116.57303 21.366123 6790.5878 74920150. -0.017002895 0.13681411 116.61928 21.248063 6792.6128 67541161. -0.023563563 0.14172575 116.66923 21.130002 6794.6379 64172868. -0.031248695 0.14663739 116.71918 21.011941 6796.6629 60766168. -0.044159811 0.15154903 116.75908 20.908398 6798.6880 58612927. -0.099238247 0.15646067 116.79881 20.805097 6800.7130 56892439. -0.061269677 0.16137230 116.84119 20.694908 6802.7381 53411417. 0.030767082 0.16628394 116.88660 20.576848