# # 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 = 54.655933 km # Date (UTC) = 2013-01-20T10:19:55.547 # Date (julian) = 2456312.93050401 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.5852 7.2206302e+10 0.055134818 0.033062781 95.563818 46.974912 6504.6536 6.5104283e+10 0.064077627 0.033686486 95.673527 46.829753 6506.7219 5.9567076e+10 0.073441329 0.034310190 95.770923 46.704530 6508.7903 5.4970594e+10 0.083216913 0.034933895 95.869704 46.577062 6510.8586 5.0623478e+10 0.093281821 0.035557600 95.983335 46.425554 6512.9270 4.6282242e+10 0.10356743 0.036181304 96.092012 46.280284 6514.9953 4.2506546e+10 0.11424649 0.036805009 96.184768 46.155061 6517.0637 3.9343024e+10 0.12535545 0.037428713 96.279219 46.027705 6519.1320 3.6302039e+10 0.13671686 0.038052418 96.392854 45.876195 6521.2004 3.3275144e+10 0.14827690 0.038676123 96.501623 45.730812 6523.2687 3.0521082e+10 0.15654231 0.039245712 96.594379 45.605591 6525.3371 2.8205531e+10 0.16287736 0.039743747 96.687908 45.478764 6527.4054 2.6041608e+10 0.16823576 0.041010799 96.790719 45.332667 6529.4738 2.3895572e+10 0.17227757 0.042990430 96.891225 45.190289 6531.5421 2.1962996e+10 0.17575568 0.046017711 96.983966 45.060449 6533.6104 2.0321510e+10 0.17830173 0.047779008 97.077434 44.929434 6535.6788 1.8705682e+10 0.17868231 0.047929839 97.180245 44.783336 6537.7471 1.7124629e+10 0.17951997 0.049037469 97.279761 44.640880 6539.8155 1.5643272e+10 0.17913764 0.050630755 97.367878 44.511019 6541.8838 1.4493520e+10 0.17671764 0.051039909 97.455996 44.381474 6543.9522 1.3648103e+10 0.17415479 0.051631798 97.544117 44.256252 6546.0205 1.2854139e+10 0.17165569 0.052481419 97.632238 44.131029 6548.0889 1.1988871e+10 0.17028931 0.053694188 97.733754 43.981836 6550.1572 1.1079346e+10 0.16871239 0.055024727 97.835331 43.832007 6552.2256 1.0236518e+10 0.16687622 0.055529990 97.918813 43.706783 6554.2939 9.5268413e+09 0.16451803 0.054838548 98.002295 43.581560 6556.3623 9.0004465e+09 0.16218749 0.053959866 98.085777 43.452128 6558.4306 8.5047304e+09 0.15989641 0.052872369 98.169259 43.322268 6560.4990 7.9723999e+09 0.15725706 0.051824432 98.263200 43.180205 6562.5673 7.4339014e+09 0.15470775 0.050340089 98.360598 43.034108 6564.6357 6.9091990e+09 0.15215809 0.048483518 98.445424 42.902679 6566.7040 6.4742274e+09 0.14987066 0.046784632 98.528906 42.772819 6568.7723 6.1324640e+09 0.14760483 0.045061689 98.608921 42.646424 6570.8407 5.8232297e+09 0.14573355 0.044569264 98.687764 42.521201 6572.9090 5.5296379e+09 0.14359415 0.043709570 98.769350 42.393236 6574.9774 5.2456127e+09 0.14103595 0.042385567 98.852832 42.263375 6577.0457 4.9862067e+09 0.13800830 0.040148529 98.934296 42.135530 6579.1141 4.7612756e+09 0.13438963 0.037007780 99.013139 42.010307 6581.1824 4.5312074e+09 0.13129906 0.035541366 99.095647 41.877755 6583.2508 4.2878131e+09 0.12854422 0.034894733 99.187633 41.726248 6585.3191 4.0277937e+09 0.12575598 0.033715638 99.273960 41.586062 6587.3875 3.7860487e+09 0.12341265 0.033244219 99.352807 41.460838 6589.4558 3.5852788e+09 0.12121691 0.032141669 99.430379 41.334342 6591.5242 3.4051593e+09 0.11888741 0.028610447 99.504583 41.204482 6593.5925 3.2394694e+09 0.11686794 0.026551361 99.579336 41.075171 6595.6609 3.0769785e+09 0.11445538 0.025692104 99.658179 40.949948 6597.7292 2.9320017e+09 0.11253086 0.025492616 99.737022 40.824725 6599.7976 2.8060367e+09 0.11154046 0.024977699 99.811405 40.695040 6601.8659 2.6939633e+09 0.11103330 0.027453482 99.885613 40.565180 6603.9343 2.5637277e+09 0.10957127 0.026110199 99.969776 40.422254 6606.0026 2.4200815e+09 0.10932349 0.027499293 100.05633 40.276185 6608.0709 2.2782788e+09 0.10725157 0.023730496 100.13106 40.145639 6610.1393 2.1490832e+09 0.10446210 0.024136071 100.20527 40.015778 6612.2076 2.0495438e+09 0.10229666 0.024165610 100.27948 39.889635 6614.2760 1.9533375e+09 0.10123105 0.023750347 100.35368 39.764412 6616.3443 1.8680118e+09 0.099635269 0.023336342 100.42489 39.639189 6618.4127 1.7893025e+09 0.098850760 0.024082420 100.49446 39.513966 6620.4810 1.7124618e+09 0.097944899 0.024922209 100.56630 39.386474 6622.5494 1.6320993e+09 0.096459064 0.024611767 100.64051 39.256612 6624.6177 1.5545408e+09 0.094703497 0.025192974 100.71317 39.128295 6626.6861 1.4827196e+09 0.092771492 0.025716785 100.78274 39.003074 6628.7544 1.4134607e+09 0.091287978 0.026009397 100.85230 38.877032 6630.8228 1.3563955e+09 0.089418648 0.025930329 100.92187 38.747171 6632.8911 1.2976450e+09 0.087998570 0.026139197 100.99144 38.617405 6634.9595 1.2459963e+09 0.086638654 0.026396830 101.06101 38.492182 6637.0278 1.1937969e+09 0.085364972 0.026147792 101.13058 38.366959 6639.0962 1.1445951e+09 0.084638117 0.025593707 101.20015 38.241737 6641.1645 1.1027519e+09 0.085439039 0.025148859 101.26972 38.116515 6643.2328 1.0498801e+09 0.085144396 0.025227776 101.34750 37.972671 6645.3012 9.9593470e+08 0.084407380 0.025592784 101.42867 37.821161 6647.3695 9.3752500e+08 0.083580280 0.026632346 101.49586 37.692267 6649.4379 8.8509989e+08 0.082820350 0.027030076 101.56079 37.567044 6651.5062 8.4528640e+08 0.082534108 0.026872124 101.62899 37.438556 6653.5746 8.0686106e+08 0.082143238 0.027819024 101.69856 37.308696 6655.6429 7.7467775e+08 0.080701237 0.027875877 101.76559 37.181377 6657.7113 7.4352102e+08 0.079237068 0.029726173 101.83052 37.056154 6659.7796 7.1445079e+08 0.077874936 0.031671967 101.89545 36.930931 6661.8480 6.8798221e+08 0.076458598 0.032966841 101.96038 36.805708 6663.9163 6.5737304e+08 0.075180979 0.032229278 102.02531 36.679392 6665.9847 6.2971043e+08 0.075266294 0.026933716 102.09024 36.549531 6668.0530 6.0173751e+08 0.074566733 0.027517690 102.15517 36.420039 6670.1214 5.7834705e+08 0.074008057 0.027272407 102.22010 36.294817 6672.1897 5.5613891e+08 0.073678132 0.026989559 102.28503 36.169594 6674.2581 5.3495211e+08 0.072666900 0.029172480 102.34567 36.044371 6676.3264 5.1408378e+08 0.070447858 0.031924090 102.40596 35.919148 6678.3948 4.9247333e+08 0.069652954 0.030672587 102.46981 35.793925 6680.4631 4.7455431e+08 0.070288262 0.029541419 102.53474 35.668702 6682.5314 4.5728456e+08 0.071105010 0.030830588 102.59684 35.540646 6684.5998 4.4306803e+08 0.071257184 0.032684529 102.65714 35.410786 6686.6681 4.2607408e+08 0.070194190 0.034149819 102.72446 35.273539 6688.7365 4.0522229e+08 0.067746135 0.033955197 102.80022 35.127440 6690.8048 3.8408037e+08 0.066845470 0.033023629 102.86659 34.994010 6692.8732 3.6764727e+08 0.066188934 0.031751354 102.92688 34.868787 6694.9415 3.5413366e+08 0.065708200 0.029941423 102.98717 34.743564 6697.0099 3.4109653e+08 0.065301745 0.030092515 103.04746 34.618341 6699.0782 3.2678548e+08 0.064154523 0.031518253 103.10775 34.491752 6701.1466 3.1258659e+08 0.062524687 0.031624508 103.16805 34.361892 6703.2149 3.0070518e+08 0.062429798 0.034213030 103.22834 34.232677 6705.2833 2.9037355e+08 0.062574423 0.037172196 103.28862 34.107476 6707.3516 2.7819618e+08 0.062267767 0.040136458 103.34890 33.982274 6709.4200 2.6458166e+08 0.061562901 0.040865428 103.40464 33.857051 6711.4883 2.5190672e+08 0.059776148 0.041247793 103.46030 33.731827 6713.5567 2.4150254e+08 0.057792506 0.045699925 103.51978 33.606604 6715.6250 2.3369269e+08 0.056019078 0.048017822 103.58007 33.481381 6717.6933 2.2640072e+08 0.053991985 0.049831382 103.64037 33.356158 6719.7617 2.1947238e+08 0.052502793 0.050646172 103.70066 33.230936 6721.8300 2.0995505e+08 0.052637488 0.050553995 103.76334 33.094997 6723.8984 2.0187219e+08 0.050761595 0.049869992 103.82827 32.948902 6725.9667 1.9290926e+08 0.046931356 0.040972145 103.88703 32.816693 6728.0351 1.8461954e+08 0.046269136 0.039677827 103.94268 32.691470 6730.1034 1.7963202e+08 0.044959931 0.040520721 103.99834 32.566247 6732.1718 1.7369555e+08 0.043409549 0.043771833 104.05399 32.441024 6734.2401 1.6773998e+08 0.042659355 0.049339152 104.11128 32.315801 6736.3085 1.5871384e+08 0.044320493 0.051521211 104.17157 32.190577 6738.3768 1.4973337e+08 0.045320913 0.059395666 104.23004 32.064441 6740.4452 1.4412992e+08 0.044685953 0.064810856 104.28106 31.934580 6742.5135 1.4305388e+08 0.041842146 0.069862029 104.33264 31.804059 6744.5819 1.4244252e+08 0.037865102 0.078243468 104.39757 31.657962 6746.6502 1.4015024e+08 0.034390314 0.071427856 104.46072 31.515886 6748.7186 1.3706609e+08 0.032978066 0.070797255 104.51637 31.390663 6750.7869 1.3405478e+08 0.030060249 0.073347803 104.57203 31.265440 6752.8553 1.2688554e+08 0.027171705 0.073144790 104.62768 31.140217 6754.9236 1.1981986e+08 0.025353375 0.074728208 104.68334 31.014994 6756.9919 1.1234814e+08 0.022459670 0.076719333 104.73491 30.893853 6759.0603 1.1021481e+08 0.023350883 0.075834504 104.78593 30.773268 6761.1286 1.1073660e+08 0.024002893 0.077978853 104.84702 30.634208 6763.1970 1.0803982e+08 0.028826620 0.077037696 104.91195 30.488111 6765.2653 1.0116026e+08 0.030753256 0.079579631 104.96469 30.360301 6767.3337 92763320. 0.029419512 0.081602128 105.01571 30.235079 6769.4020 88723566. 0.024582693 0.085429360 105.07006 30.109856 6771.4704 86118206. 0.020679177 0.090446011 105.12572 29.984634 6773.5387 87514156. 0.017015361 0.095462663 105.18355 29.847643 6775.6071 84623348. 0.013136740 0.10047931 105.24308 29.701546 6777.6754 81615606. 0.0092413393 0.10549597 105.29651 29.570387 6779.7438 76738788. 0.0051989226 0.11051262 105.34753 29.445164 6781.8121 73483703. 0.0012413223 0.11552927 105.40330 29.308279 6783.8805 74487567. -0.0023712926 0.12054592 105.46281 29.162210 6785.9488 71653457. -0.0063097246 0.12556257 105.51628 29.030964 6788.0172 69264814. -0.010231299 0.13057922 105.56729 28.905741 6790.0855 65143719. -0.014374991 0.13559587 105.61830 28.780518 6792.1538 63161666. -0.018330838 0.14061252 105.66932 28.655295 6794.2222 66788291. -0.021639100 0.14562918 105.72373 28.523907 6796.2905 66558391. -0.025424294 0.15064583 105.78325 28.383220 6798.3589 64070245. -0.029528149 0.15566248 105.83809 28.251048 6800.4272 58683425. -0.034164500 0.16067913 105.88911 28.125826 6802.4956 54266626. -0.038909435 0.16569578 105.94134 27.992368 6804.5639 50792675. -0.043765886 0.17071243 105.99545 27.846271 6806.6323 50849636. -0.048087201 0.17572908 106.04787 27.711579 6808.7006 51411752. -0.052575798 0.18074574 106.09889 27.586356 6810.7690 49391143. -0.058314011 0.18576239 106.15111 27.455099 6812.8373 49208866. -0.064477007 0.19077904 106.20523 27.314412 6814.9057 45751367. -0.075032792 0.19579569 106.26227 27.170792 6816.9740 44093602. -0.10909862 0.20081234 106.32179 27.024695 6819.0424 44161699. -0.089537392 0.20582899 106.37219 26.893086 6823.1791 42628269. -0.039377726 0.21586230 106.46910 26.634338