# # 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 = 49.985318 km # Date (UTC) = 2014-12-10T10:15:59.049 # Date (julian) = 2457001.92776677 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6486.5355 1.1273230e+11 0.033784475 0.028223015 -32.476355 52.854112 6489.2527 9.5205302e+10 0.043416861 0.029042377 -32.623254 52.740385 6491.9698 8.4793436e+10 0.051906594 0.029861738 -32.769184 52.627628 6494.6870 7.5564511e+10 0.060113857 0.030681100 -32.911363 52.518623 6497.4042 6.8800026e+10 0.067672941 0.031500462 -33.053539 52.409168 6500.1214 6.4238031e+10 0.074511017 0.032319823 -33.195698 52.295441 6502.8386 6.0251007e+10 0.081040236 0.033139185 -33.337856 52.181716 6505.5558 5.6557332e+10 0.087335916 0.033958546 -33.475351 52.072654 6508.2730 5.2523291e+10 0.093347916 0.034777908 -33.612772 51.963665 6510.9902 4.7830800e+10 0.098953655 0.035597269 -33.750192 51.850531 6513.7074 4.3429179e+10 0.10429395 0.036416631 -33.887612 51.736802 6516.4246 3.8975773e+10 0.10984205 0.037235993 -34.034090 51.612208 6519.1418 3.4716437e+10 0.11640167 0.038055354 -34.183362 51.484263 6521.8589 3.0890294e+10 0.12504066 0.038874716 -34.322121 51.373148 6524.5761 2.7877340e+10 0.13022605 0.039631634 -34.459560 51.264145 6527.2933 2.5519387e+10 0.13759864 0.040929427 -34.589606 51.151463 6530.0105 2.3277753e+10 0.14737574 0.043843417 -34.717548 51.037734 6532.7277 2.1193231e+10 0.15811625 0.047292113 -34.848659 50.924005 6535.4449 1.9194573e+10 0.16607774 0.048031303 -34.981342 50.810277 6538.1621 1.7345779e+10 0.17113236 0.049235608 -35.111382 50.696549 6540.8793 1.5872644e+10 0.17153563 0.051269495 -35.239326 50.582822 6543.5965 1.4483358e+10 0.16885226 0.051538439 -35.367278 50.469088 6546.3137 1.3051040e+10 0.16621249 0.052722616 -35.495238 50.355344 6549.0308 1.1789843e+10 0.16405282 0.053997717 -35.621594 50.243206 6551.7480 1.0721271e+10 0.16271581 0.055498324 -35.744798 50.134217 6554.4652 9.7826068e+09 0.16062410 0.054842143 -35.871503 50.020920 6557.1824 8.8657740e+09 0.15870492 0.053751766 -36.010110 49.892975 6559.8996 7.9904075e+09 0.15643229 0.052285640 -36.143304 49.770027 6562.6168 7.2241975e+09 0.15380769 0.050292995 -36.266510 49.656298 6565.3340 6.6327984e+09 0.15159521 0.047939146 -36.388577 49.542566 6568.0512 6.1685652e+09 0.14993911 0.045724614 -36.507059 49.428825 6570.7684 5.7041079e+09 0.14850103 0.044599224 -36.626161 49.315085 6573.4856 5.2761860e+09 0.14672942 0.043267830 -36.749365 49.201356 6576.2028 4.8650130e+09 0.14449900 0.041138021 -36.872371 49.087628 6578.9199 4.4731374e+09 0.14169452 0.037196917 -36.986100 48.973899 6581.6371 4.1720680e+09 0.13909767 0.035403676 -37.099829 48.860170 6584.3543 3.9424053e+09 0.13617049 0.034322498 -37.217872 48.746443 6587.0715 3.6968520e+09 0.13329481 0.033174214 -37.336338 48.632716 6589.7887 3.4250164e+09 0.13015099 0.031481259 -37.462390 48.507610 6592.5059 3.1126927e+09 0.12628433 0.027582148 -37.590334 48.379663 6595.2231 2.8439805e+09 0.12239705 0.025646706 -37.705151 48.264849 6597.9403 2.6756720e+09 0.11877004 0.025426012 -37.818894 48.151107 6600.6575 2.5590974e+09 0.11754097 0.026341504 -37.932626 48.037376 6603.3747 2.4613031e+09 0.11634312 0.026441478 -38.046354 47.923647 6606.0918 2.3525923e+09 0.11567616 0.027338917 -38.156745 47.809920 6608.8090 2.1967983e+09 0.11276369 0.023710980 -38.265734 47.696193 6611.5262 1.9888304e+09 0.11010815 0.024622878 -38.382815 47.574022 6614.2434 1.8415663e+09 0.10925862 0.023772786 -38.505429 47.446075 6616.9606 1.6784232e+09 0.10823842 0.023433067 -38.618270 47.328327 6619.6778 1.5854559e+09 0.10766427 0.024689456 -38.727274 47.214583 6622.3950 1.5456777e+09 0.10590048 0.024652859 -38.836268 47.097968 6625.1122 1.4748783e+09 0.10394218 0.025531470 -38.945257 46.979501 6627.8294 1.4469876e+09 0.10122315 0.025637184 -39.051888 46.863394 6630.5466 1.3628024e+09 0.099188759 0.025929649 -39.156139 46.749667 6633.2638 1.2851555e+09 0.097050679 0.026198301 -39.265439 46.630431 6635.9809 1.2012794e+09 0.094788613 0.026546895 -39.382721 46.502485 6638.6981 1.1157420e+09 0.093140059 0.025641227 -39.493336 46.381813 6641.4153 1.0459559e+09 0.093189331 0.025149711 -39.597588 46.268086 6644.1325 9.5143441e+08 0.091965595 0.025357928 -39.699942 46.154352 6646.8497 8.8738393e+08 0.090256268 0.026359982 -39.799467 46.040608 6649.5669 8.3877969e+08 0.088456240 0.026852251 -39.904165 45.922728 6652.2841 8.0970575e+08 0.087048454 0.027328684 -40.021449 45.794783 6655.0013 7.8381100e+08 0.085098594 0.027610743 -40.131348 45.670777 6657.7185 7.4144214e+08 0.082581692 0.029734509 -40.230859 45.552311 6660.4357 7.0676419e+08 0.080673646 0.032021988 -40.330371 45.435290 6663.1528 6.6042814e+08 0.079318972 0.032440855 -40.429883 45.321561 6665.8700 6.1964392e+08 0.079038495 0.027121543 -40.530780 45.205062 6668.5872 5.7402126e+08 0.078221230 0.027990429 -40.637402 45.077117 6671.3044 5.3607452e+08 0.078258847 0.026869687 -40.741759 44.953704 6674.0216 5.1834587e+08 0.077374547 0.028973019 -40.841284 44.839961 6676.7388 4.9300792e+08 0.074731225 0.032189876 -40.942292 44.723247 6679.4560 4.6944648e+08 0.074245157 0.029890962 -41.048914 44.595301 6682.1732 4.3722942e+08 0.075456308 0.030556859 -41.151587 44.470514 6684.8904 4.0412841e+08 0.075709688 0.032699274 -41.246360 44.352048 6687.6076 3.7760094e+08 0.073517400 0.034004057 -41.343776 44.231467 6690.3248 3.5492986e+08 0.071090742 0.033078647 -41.450398 44.103522 6693.0419 3.3869576e+08 0.069871366 0.031589700 -41.551261 43.980513 6695.7591 3.2547114e+08 0.069045166 0.029720030 -41.641295 43.866785 6698.4763 3.1238080e+08 0.067681499 0.030871625 -41.733999 43.749684 6701.1935 2.9630380e+08 0.065286005 0.031693385 -41.835306 43.621720 6703.9107 2.8037669e+08 0.064962499 0.035954106 -41.932539 43.497189 6706.6279 2.6405212e+08 0.064648851 0.039539205 -42.022572 43.378722 6709.3451 2.4670920e+08 0.063634886 0.040913053 -42.115433 43.257875 6712.0623 2.3328867e+08 0.060889357 0.041945583 -42.216723 43.129928 6714.7795 2.2007416e+08 0.058160947 0.047362009 -42.318014 43.001982 6717.4967 2.0982747e+08 0.055403993 0.049843548 -42.419305 42.874037 6720.2138 2.0195804e+08 0.053712390 0.050394989 -42.514973 42.753194 6722.9310 1.8984602e+08 0.052947639 0.049454200 -42.605007 42.639465 6725.6482 1.8095444e+08 0.048106225 0.041171103 -42.697347 42.520204 6728.3654 1.7255090e+08 0.046844495 0.040146016 -42.793307 42.392259 6731.0826 1.6204588e+08 0.044648681 0.041914431 -42.889266 42.261577 6733.7998 1.5335947e+08 0.042786911 0.048266648 -42.985226 42.128299 6736.5170 1.4481652e+08 0.044288509 0.052309514 -43.081195 41.998408 6739.2342 1.3850410e+08 0.044801341 0.063113143 -43.177169 41.870443 6741.9514 1.3312546e+08 0.042139193 0.068472055 -43.265005 41.753327 6744.6686 1.2658651e+08 0.036605630 0.078310526 -43.350301 41.639599 6747.3858 1.1969119e+08 0.031333728 0.067228362 -43.439072 41.516604 6750.1029 1.1514294e+08 0.028312990 0.072179908 -43.529699 41.388660 6752.8201 1.1115219e+08 0.024885495 0.073185431 -43.624464 41.256577 6755.5373 1.0382569e+08 0.021776214 0.074369764 -43.720424 41.123300 6758.2545 95440783. 0.019853051 0.074243524 -43.811585 40.994821 6760.9717 88495543. 0.019568400 0.077914264 -43.902215 40.866874 6763.6889 83981063. 0.024916382 0.078535805 -43.992842 40.738929 6766.4061 80679123. 0.025998023 0.080632317 -44.083470 40.610984 6769.1233 77904436. 0.020125213 0.084753256 -44.174099 40.483038 6771.8405 74564314. 0.014402035 0.091343637 -44.264732 40.355086 6774.5577 71871618. 0.0086348024 0.097934019 -44.355372 40.227123 6777.2748 68814538. 0.0026073220 0.10452440 -44.443890 40.097048 6779.9920 66072828. -0.0037449125 0.11111478 -44.529187 39.963771 6782.7092 61586000. -0.011280802 0.11770516 -44.617265 39.833274 6785.4264 57582678. -0.020495540 0.12429554 -44.707895 39.705326 6788.1436 55659526. -0.033852801 0.13088593 -44.795081 39.577380 6790.8608 54819197. -0.088568321 0.13747631 -44.880379 39.449433 6793.5780 53777361. -0.049788819 0.14406669 -44.975059 39.307413 6796.2952 49219088. 0.042067981 0.15065707 -45.070976 39.163539