# # 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 = 64.000997 km # Date (UTC) = 2011-11-19T10:14:26.223 # Date (julian) = 2455884.92669240 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.7803 1.4481753e+11 0.060575020 0.033121606 98.396885 36.625018 6505.7521 1.1640758e+11 0.072139746 0.034017748 98.490177 36.431769 6508.7239 9.5263648e+10 0.083779182 0.034913889 98.583472 36.238521 6511.6957 7.8922520e+10 0.095583371 0.035810031 98.679559 36.039494 6514.6676 6.5859831e+10 0.10762242 0.036706173 98.788381 35.814076 6517.6394 5.5332961e+10 0.11997367 0.037602315 98.883331 35.617391 6520.6112 4.7228128e+10 0.13285430 0.038498457 98.976623 35.426758 6523.5830 4.1375811e+10 0.14203397 0.039323607 99.069915 35.240175 6526.5548 3.6569166e+10 0.14725010 0.040249738 99.157263 35.047646 6529.5266 3.2585356e+10 0.15165509 0.043074644 99.246497 34.854397 6532.4984 2.8978427e+10 0.15516753 0.047100579 99.339789 34.661149 6535.4702 2.5695064e+10 0.15602665 0.048020307 99.440010 34.439211 6538.4421 2.2788359e+10 0.15738158 0.049371939 99.532353 34.237243 6541.4139 2.0245709e+10 0.15823526 0.051192315 99.618980 34.049968 6544.3857 1.8228349e+10 0.15932199 0.051957218 99.705607 33.856720 6547.3575 1.6521600e+10 0.16085892 0.053423312 99.792236 33.663473 6550.3293 1.5007396e+10 0.16196073 0.055067814 99.878867 33.470908 6553.3011 1.3672797e+10 0.16173514 0.055183701 99.965494 33.284321 6556.2729 1.2455515e+10 0.15966428 0.053973000 100.04811 33.093726 6559.2447 1.1377354e+10 0.15663094 0.052359557 100.12875 32.900478 6562.2166 1.0430437e+10 0.15307277 0.050673848 100.21538 32.707232 6565.1884 9.5865037e+09 0.14991502 0.048104510 100.29801 32.517984 6568.1602 8.8457262e+09 0.14762238 0.045624424 100.37864 32.330733 6571.1320 8.1704031e+09 0.14583276 0.044467227 100.46527 32.137487 6574.1038 7.5485572e+09 0.14368998 0.042805152 100.54790 31.948231 6577.0756 6.9837241e+09 0.14163154 0.040101608 100.62787 31.760990 6580.0474 6.4696488e+09 0.13904182 0.036476929 100.70783 31.567742 6583.0192 5.9986051e+09 0.13680830 0.035011932 100.78779 31.378476 6585.9910 5.5757310e+09 0.13437953 0.033178456 100.86776 31.191245 6588.9629 5.1956814e+09 0.13250910 0.033058381 100.94773 30.997997 6591.9347 4.8428648e+09 0.12980121 0.028147246 101.02769 30.808723 6594.9065 4.5287537e+09 0.12692205 0.025674909 101.10765 30.621500 6597.8783 4.2364614e+09 0.12380794 0.025445572 101.18762 30.428253 6600.8501 3.9692242e+09 0.12280334 0.026737531 101.26362 30.238970 6603.8219 3.7190755e+09 0.12098973 0.026176702 101.33755 30.051755 6606.7937 3.4826889e+09 0.11967290 0.026077660 101.41751 29.858508 6609.7655 3.2661566e+09 0.11531244 0.023933333 101.49352 29.669216 6612.7374 3.0686938e+09 0.11197421 0.023769831 101.56744 29.482631 6615.7092 2.8865242e+09 0.10931922 0.023273351 101.64741 29.296046 6618.6810 2.7102189e+09 0.10723735 0.024285013 101.72343 29.105514 6621.6528 2.5444000e+09 0.10518118 0.024873078 101.79673 28.912878 6624.6246 2.3890105e+09 0.10261509 0.025196654 101.87003 28.726293 6627.5964 2.2411379e+09 0.10044891 0.025547194 101.94333 28.539709 6630.5682 2.1019044e+09 0.099043570 0.025929702 102.01663 28.352523 6633.5400 1.9696843e+09 0.097523939 0.026246537 102.08993 28.159274 6636.5118 1.8408959e+09 0.096003148 0.026350982 102.16323 27.969956 6639.4837 1.7265335e+09 0.095414048 0.025455205 102.23572 27.785450 6642.4555 1.6311680e+09 0.095930414 0.025170335 102.29985 27.622192 6645.4273 1.5522978e+09 0.094703106 0.025651850 102.36741 27.450208 6648.3991 1.4821564e+09 0.093200537 0.027231439 102.44072 27.263624 6651.3709 1.4073317e+09 0.092411222 0.026768410 102.50820 27.077039 6654.3427 1.3284382e+09 0.091471117 0.027890225 102.57732 26.890455 6657.3145 1.2569463e+09 0.089037848 0.029265955 102.65063 26.703871 6660.2863 1.1904295e+09 0.087020908 0.031886267 102.71811 26.511475 6663.2582 1.1270028e+09 0.085022712 0.032411672 102.78723 26.320702 6666.2300 1.0669659e+09 0.084275945 0.026953407 102.86053 26.134117 6669.2018 1.0065822e+09 0.082697880 0.028148465 102.92803 25.947532 6672.1736 9.5052106e+08 0.082364104 0.026980214 102.99466 25.760947 6675.1454 9.0160476e+08 0.080284184 0.030076851 103.06130 25.574363 6678.1172 8.5384058e+08 0.077888031 0.030858218 103.13373 25.387779 6681.0890 8.1244865e+08 0.078107062 0.029725656 103.20457 25.201207 6684.0608 7.7253780e+08 0.078127372 0.032657179 103.27119 25.014654 6687.0326 7.3304271e+08 0.076077191 0.034324692 103.33783 24.828073 6690.0045 6.9517184e+08 0.072952800 0.033115353 103.40447 24.641487 6692.9763 6.5656664e+08 0.071705244 0.031631644 103.47111 24.454904 6695.9481 6.2555359e+08 0.071111471 0.029685322 103.53053 24.293565 6698.9199 6.0131116e+08 0.069730057 0.031480478 103.58910 24.131694 6701.8917 5.8174087e+08 0.067485760 0.032717832 103.64907 23.945109 6704.8635 5.5591585e+08 0.068014767 0.036601586 103.71337 23.758546 6707.8353 5.2892627e+08 0.067708104 0.040067166 103.78000 23.571989 6710.8071 5.0218175e+08 0.065928529 0.040654483 103.84664 23.385403 6713.7790 4.7826582e+08 0.063036769 0.046503931 103.91328 23.198819 6716.7508 4.5808059e+08 0.060486966 0.049507168 103.97893 23.013227 6719.7226 4.3419232e+08 0.058238801 0.050683338 104.03890 22.833306 6722.6944 4.1293186e+08 0.057898538 0.049746759 104.10319 22.649066 6725.6662 3.9209299e+08 0.053046896 0.041159876 104.16885 22.462481 6728.6380 3.7510752e+08 0.051909061 0.040532372 104.22882 22.275897 6731.6098 3.5637738e+08 0.049606851 0.042963688 104.28879 22.089312 6734.5816 3.4146009e+08 0.048722790 0.049318604 104.34974 21.903701 6737.5534 3.2505028e+08 0.050869125 0.055898587 104.41638 21.723780 6740.5253 3.1071935e+08 0.050479381 0.064947678 104.48517 21.519480 6743.4971 2.9638863e+08 0.045489544 0.074400671 104.55155 21.315361 6746.4689 2.8061838e+08 0.041216030 0.073535984 104.61152 21.135441 6749.4407 2.6806744e+08 0.037884483 0.072157270 104.67149 20.949799 6752.4125 2.5472848e+08 0.033561486 0.073657129 104.73385 20.765600 6755.3843 2.4579478e+08 0.031153338 0.074436846 104.80049 20.585679 6758.3561 2.3401358e+08 0.029896270 0.074458408 104.86141 20.400045 6761.3279 2.2486309e+08 0.031646356 0.077995319 104.92139 20.215837 6764.2998 2.1533511e+08 0.037338433 0.079497646 104.98136 20.035916 6767.2716 2.0459003e+08 0.037480163 0.081671682 105.04134 19.850291 6770.2434 1.9554521e+08 0.031306567 0.087469999 105.09894 19.666074 6773.2152 1.8623641e+08 0.026002300 0.094677949 105.15225 19.486153 6776.1870 1.7826008e+08 0.020688109 0.10188590 105.21980 19.273956 6779.1588 1.6907355e+08 0.015389398 0.10909385 105.28409 19.077734 6782.1306 1.6134454e+08 0.010077678 0.11630180 105.34406 18.897812 6785.1024 1.5654290e+08 0.0047405171 0.12350975 105.40404 18.717892 6788.0742 1.5145007e+08 -0.00058941423 0.13071770 105.46401 18.534192 6791.0461 1.4650175e+08 -0.0059166490 0.13792565 105.52413 18.346060 6794.0179 1.3830591e+08 -0.011217508 0.14513360 105.58633 18.136146 6796.9897 1.3130763e+08 -0.016523257 0.15234155 105.64679 17.949632 6799.9615 1.2734113e+08 -0.021843043 0.15954950 105.70490 17.769711 6802.9333 1.2312010e+08 -0.027155698 0.16675745 105.75821 17.589790 6805.9051 1.1574883e+08 -0.032444395 0.17396540 105.82449 17.380488 6808.8769 1.0999822e+08 -0.037737501 0.18117335 105.88625 17.181416 6811.8487 1.0561073e+08 -0.043029844 0.18838130 105.93956 17.001495 6814.8206 1.0062633e+08 -0.048314095 0.19558925 106.00939 16.791831 6817.7924 95437121. -0.053582843 0.20279720 106.06761 16.603076 6820.7642 88793752. -0.058829067 0.21000515 106.12274 16.417013 6823.7360 85851143. -0.064039155 0.21721310 106.18494 16.207101 6826.7078 85381990. -0.069213026 0.22442105 106.24509 16.024736 6829.6796 83144822. -0.074379228 0.23162900 106.30599 15.832281 6832.6514 82218106. -0.079545039 0.23883695 106.36702 15.626315 6835.6232 80241284. -0.084716126 0.24604490 106.42033 15.446395 6838.5950 76044434. -0.089898952 0.25325285 106.47924 15.247550 6841.5669 71305839. -0.095093756 0.26046081 106.54411 15.037651 6844.5387 63811360. -0.10032607 0.26766876 106.61310 14.829524 6847.5105 61762325. -0.10553672 0.27487671 106.66642 14.649603 6850.4823 60726383. -0.11076177 0.28208466 106.72468 14.452959 6853.4541 59450385. -0.11603194 0.28929261 106.78687 14.243044 6856.4259 60078686. -0.12133852 0.29650056 106.84907 14.033131 6859.3977 57602566. -0.12681325 0.30370851 106.90251 13.852763 6862.3695 56469304. -0.13246450 0.31091646 106.96013 13.658313 6865.3414 53105102. -0.13906515 0.31812441 107.02233 13.449940 6868.3132 48865367. -0.15249170 0.32533236 107.08452 13.247802 6871.2850 48414696. -0.15113079 0.33254031 107.14672 13.038573 6874.2568 48213842. -0.14187683 0.33974826 107.20404 12.828685