# # 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 = 54.602401 km # Date (UTC) = 2013-01-05T09:53:34.164 # Date (julian) = 2456297.91220097 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6483.9689 7.3339620e+10 0.024101676 0.027449065 104.18634 38.650479 6486.1363 6.7887926e+10 0.029344064 0.028102641 104.25528 38.545725 6488.3037 6.1733816e+10 0.034670086 0.028756217 104.32758 38.430910 6490.4711 5.6464837e+10 0.039638046 0.029409794 104.39987 38.316094 6492.6385 5.1715355e+10 0.044323347 0.030063370 104.47216 38.201279 6494.8059 4.7777532e+10 0.048661781 0.030716946 104.54445 38.086464 6496.9733 4.4428873e+10 0.052719093 0.031370522 104.61674 37.971648 6499.1407 4.1458007e+10 0.056527948 0.032024098 104.68903 37.856833 6501.3081 3.8839348e+10 0.059950174 0.032677674 104.76132 37.741349 6503.4755 3.6476813e+10 0.062893583 0.033331250 104.83362 37.622264 6505.6430 3.4120195e+10 0.065467650 0.033984827 104.90592 37.503179 6507.8104 3.1861264e+10 0.068196531 0.034638403 104.97822 37.387533 6509.9778 2.9674147e+10 0.071993990 0.035291979 105.05051 37.272717 6512.1452 2.7713593e+10 0.078008401 0.035945555 105.11744 37.163691 6514.3126 2.6095015e+10 0.087425377 0.036599131 105.17792 37.061635 6516.4800 2.4640123e+10 0.10080387 0.037252707 105.23840 36.959578 6518.6474 2.3292274e+10 0.11819585 0.037906283 105.30499 36.850648 6520.8148 2.1853096e+10 0.13877627 0.038559860 105.37303 36.740086 6522.9822 2.0334541e+10 0.15692834 0.039174456 105.44301 36.627582 6525.1496 1.8838034e+10 0.16956778 0.039765139 105.51530 36.512766 6527.3170 1.7397027e+10 0.17670083 0.040946639 105.58714 36.397951 6529.4844 1.6010372e+10 0.17952070 0.043007455 105.65518 36.283135 6531.6518 1.4727319e+10 0.18109586 0.046177452 105.72322 36.168320 6533.8193 1.3605587e+10 0.18137969 0.047867746 105.78556 36.063116 6535.9867 1.2708916e+10 0.17969604 0.047796286 105.84604 35.961060 6538.1541 1.1924054e+10 0.17990708 0.049231706 105.90687 35.857627 6540.3215 1.1144717e+10 0.17889056 0.051005978 105.97067 35.742794 6542.4889 1.0341597e+10 0.17652603 0.051187847 106.03447 35.627962 6544.6563 9.5357427e+09 0.17474164 0.052176748 106.10147 35.513143 6546.8237 8.8057270e+09 0.17275904 0.053142302 106.16951 35.398330 6548.9911 8.1264121e+09 0.17046735 0.053963626 106.23583 35.283515 6551.1585 7.4894707e+09 0.16889101 0.055291394 106.29961 35.168700 6553.3259 6.9269257e+09 0.16730142 0.055171227 106.36302 35.054564 6555.4933 6.4708137e+09 0.16502589 0.054438844 106.41972 34.952507 6557.6607 6.1007783e+09 0.16255285 0.053451951 106.47642 34.850451 6559.8282 5.7742022e+09 0.15945263 0.052293706 106.53774 34.743193 6561.9956 5.4525035e+09 0.15589393 0.050882091 106.60578 34.628378 6564.1630 5.1227908e+09 0.15198074 0.048697740 106.67358 34.513562 6566.3304 4.7858838e+09 0.14877235 0.046995991 106.73736 34.398747 6568.4978 4.4716788e+09 0.14569813 0.045314080 106.80115 34.283931 6570.6652 4.1903421e+09 0.14291155 0.044641964 106.85728 34.180759 6572.8326 3.9657404e+09 0.14023518 0.043753347 106.91021 34.082470 6575.0000 3.7848684e+09 0.13770637 0.042374699 106.96378 33.983202 6577.1674 3.6035141e+09 0.13522370 0.039957401 107.02756 33.868387 6579.3348 3.4186196e+09 0.13249101 0.036886430 107.09135 33.753571 6581.5022 3.2249947e+09 0.13031706 0.035444526 107.15514 33.638756 6583.6696 3.0425804e+09 0.12834929 0.034682724 107.21892 33.523941 6585.8370 2.8734628e+09 0.12631204 0.033301572 107.28120 33.409125 6588.0045 2.6978326e+09 0.12490033 0.033378443 107.34073 33.294310 6590.1719 2.5366121e+09 0.12280580 0.030742372 107.40025 33.179550 6592.3393 2.3994551e+09 0.12032127 0.027743989 107.45695 33.077494 6594.5067 2.2906498e+09 0.11778016 0.025894380 107.51365 32.975438 6596.6741 2.1984145e+09 0.11486451 0.025724209 107.57136 32.870329 6598.8415 2.1019760e+09 0.11265833 0.025005405 107.63090 32.759767 6601.0089 1.9954071e+09 0.11234952 0.027049883 107.69043 32.649174 6603.1763 1.8829793e+09 0.11111169 0.026558897 107.74996 32.534359 6605.3437 1.7756713e+09 0.11022775 0.026953398 107.80950 32.419544 6607.5111 1.6813586e+09 0.10830391 0.024697708 107.86470 32.313084 6609.6785 1.6104374e+09 0.10490326 0.023907489 107.91762 32.211014 6611.8459 1.5508578e+09 0.10189720 0.024418993 107.97062 32.108857 6614.0134 1.4937034e+09 0.10038063 0.023931293 108.03015 31.998293 6616.1808 1.4270568e+09 0.098385186 0.023310669 108.08968 31.887730 6618.3482 1.3597577e+09 0.097400669 0.024033705 108.14922 31.774366 6620.5156 1.2931905e+09 0.096526946 0.024933342 108.20875 31.659551 6622.6830 1.2314632e+09 0.095273166 0.024576205 108.26698 31.544735 6624.8504 1.1701239e+09 0.094119934 0.025317521 108.32226 31.429920 6627.0178 1.1069745e+09 0.092467622 0.025323687 108.37754 31.315104 6629.1852 1.0573187e+09 0.091708610 0.026075619 108.43056 31.216093 6631.3526 1.0120879e+09 0.090261157 0.025966585 108.48348 31.117816 6633.5200 9.7520963e+08 0.089063685 0.026243044 108.53713 31.014414 6635.6874 9.4375409e+08 0.087670397 0.026502879 108.59241 30.899600 6637.8548 9.0260948e+08 0.086720207 0.025742737 108.64770 30.784785 6640.0222 8.6590063e+08 0.086660996 0.025267930 108.70298 30.674045 6642.1897 8.2656355e+08 0.086805044 0.025159457 108.75826 30.563481 6644.3571 7.8436709e+08 0.085912659 0.025382197 108.81613 30.450328 6646.5245 7.4869480e+08 0.084919951 0.026191632 108.87567 30.335495 6648.6919 7.1380885e+08 0.083824413 0.027427432 108.93412 30.221753 6650.8593 6.7624296e+08 0.083440628 0.026451953 108.98941 30.111191 6653.0267 6.4410436e+08 0.083096413 0.027539292 109.04469 30.000628 6655.1941 6.1586283e+08 0.081765504 0.027690421 109.09442 29.897754 6657.3615 5.9314847e+08 0.079886053 0.029320455 109.14355 29.795698 6659.5289 5.7962872e+08 0.078231346 0.031724265 109.19428 29.691444 6661.6963 5.5544644e+08 0.076747994 0.032889605 109.24956 29.580881 6663.8637 5.3137410e+08 0.075301708 0.032243850 109.30484 29.470317 6666.0311 5.0801949e+08 0.075276701 0.026914664 109.35627 29.355900 6668.1986 4.8349768e+08 0.074524943 0.027646480 109.40730 29.241085 6670.3660 4.6460083e+08 0.074222752 0.027159088 109.46068 29.128631 6672.5334 4.4405986e+08 0.074150501 0.027188750 109.51596 29.018068 6674.7008 4.2331314e+08 0.073165168 0.029545943 109.57125 28.907505 6676.8682 4.0756901e+08 0.071137953 0.032273264 109.62653 28.796942 6679.0356 3.9120815e+08 0.070662565 0.030238358 109.68181 28.686380 6681.2030 3.7614428e+08 0.071926030 0.029813098 109.73347 28.572194 6683.3704 3.5840444e+08 0.072642747 0.031731420 109.78450 28.457379 6685.5378 3.4277594e+08 0.072492772 0.033272906 109.83553 28.344683 6687.7052 3.2928546e+08 0.070522447 0.033949589 109.88657 28.234103 6689.8726 3.1547403e+08 0.068574337 0.033230514 109.93824 28.123525 6692.0400 3.0468228e+08 0.067653215 0.032718831 109.99352 28.012962 6694.2074 2.8953789e+08 0.066987210 0.030970275 110.04880 27.902400 6696.3749 2.7632090e+08 0.066971164 0.029831531 110.10069 27.788447 6698.5423 2.6350594e+08 0.066111246 0.030962139 110.15172 27.673632 6700.7097 2.5405191e+08 0.064471589 0.031194103 110.20275 27.560713 6702.8771 2.4558246e+08 0.063989311 0.033577084 110.25378 27.450150 6705.0445 2.3694023e+08 0.064278272 0.036747700 110.30481 27.339588 6707.2119 2.2889932e+08 0.063979642 0.040156472 110.35584 27.229025 6709.3793 2.2048009e+08 0.063308330 0.040891286 110.40686 27.118462 6711.5467 2.1296467e+08 0.061443507 0.041314243 110.45789 27.007899 6713.7141 2.0559406e+08 0.059370183 0.046269449 110.50892 26.897335 6715.8815 1.9706426e+08 0.057695767 0.048280192 110.55995 26.785110 6718.0489 1.9063754e+08 0.055694384 0.049888631 110.61098 26.670294 6720.2163 1.8502411e+08 0.054820708 0.050394699 110.66201 26.555646 6722.3838 1.7494566e+08 0.054751775 0.050130784 110.71304 26.445084 6724.5512 1.6571978e+08 0.051657631 0.045324106 110.76407 26.334521 6726.7186 1.5569236e+08 0.049145551 0.040957848 110.81217 26.223947 6728.8860 1.5071655e+08 0.048741619 0.040883821 110.85896 26.113369 6731.0534 1.4788754e+08 0.046858566 0.041856273 110.90717 26.002795 6733.2208 1.4506243e+08 0.045528950 0.045123061 110.95820 25.892232 6735.3882 1.4321761e+08 0.045900541 0.049705537 111.00923 25.781669 6737.5556 1.3358669e+08 0.047353693 0.055905475 111.06026 25.671106 6739.7230 1.2495465e+08 0.047379387 0.063711388 111.11129 25.560543 6741.8904 1.2078811e+08 0.045123407 0.068298239 111.15962 25.449980 6744.0578 1.1543279e+08 0.040109127 0.077838145 111.20640 25.339418 6746.2252 1.1614745e+08 0.037856244 0.076368587 111.25506 25.224405 6748.3927 1.1243221e+08 0.034354694 0.069082645 111.30852 25.098045 6750.5601 1.0687576e+08 0.031187584 0.072960453 111.36143 24.975224 6752.7275 1.0093415e+08 0.027986095 0.073292662 111.41246 24.864662 6754.8949 95205866. 0.025837202 0.074774401 111.46349 24.754099 6757.0623 92246286. 0.022654111 0.076551046 111.51081 24.643536 6759.2297 92387615. 0.023241057 0.075875382 111.55759 24.532972 6761.3971 91693728. 0.024425795 0.078001033 111.60437 24.422409 6763.5645 88238702. 0.028364662 0.078156980 111.65114 24.311846 6765.7319 85218104. 0.029860147 0.079664807 111.69905 24.198609 6767.8993 79341359. 0.026726751 0.080968758 111.75251 24.072249 6770.0667 76411632. 0.021479461 0.087041551 111.80523 23.947653 6772.2341 74683601. 0.017012538 0.092298468 111.85200 23.837091 6774.4015 73249449. 0.012536528 0.097555385 111.89878 23.726529 6776.5690 68717673. 0.0076347223 0.10281230 111.94555 23.615966 6778.7364 66366381. 0.0028081322 0.10806922 111.99233 23.505403 6780.9038 65163339. -0.0020699727 0.11332614 112.04183 23.388387 6783.0712 66298200. -0.0068696245 0.11858305 112.09529 23.262027 6785.2386 66246887. -0.012429954 0.12383997 112.14641 23.141209 6787.4060 59455750. -0.020998023 0.12909689 112.19319 23.030647 6789.5734 57047492. -0.033008910 0.13435381 112.23997 22.920071 6791.7408 55461484. -0.082926448 0.13961072 112.29342 22.798592 6793.9082 51709841. -0.050328671 0.14486764 112.34688 22.677092 6796.0756 47012235. 0.037907845 0.15012456 112.39005 22.565875