# # 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 = 51.083788 km # Date (UTC) = 2013-02-02T10:47:41.166 # Date (julian) = 2456325.94978202 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6499.4261 6.7099649e+10 0.038489114 0.032110161 76.776350 62.888403 6501.3278 6.1516057e+10 0.045897768 0.032683604 77.204201 62.634438 6503.2295 5.7149991e+10 0.053783560 0.033257047 77.568787 62.413178 6505.1311 5.3644816e+10 0.062166129 0.033830490 77.892942 62.213743 6507.0328 5.0593270e+10 0.070984471 0.034403933 78.299216 61.955011 6508.9345 4.7420017e+10 0.080130982 0.034977376 78.679102 61.707265 6510.8361 4.3729334e+10 0.089411699 0.035550819 78.970166 61.513221 6512.7378 4.0403083e+10 0.099107153 0.036124262 79.341550 61.265636 6514.6395 3.7805701e+10 0.10941481 0.036697705 79.637418 61.060193 6516.5411 3.4819098e+10 0.11981121 0.037271148 79.962834 60.834904 6518.4428 3.2288458e+10 0.13066237 0.037844591 80.288542 60.607165 6520.3445 3.0277850e+10 0.14204627 0.038418034 80.557202 60.412095 6522.2462 2.8359935e+10 0.15299905 0.038981709 80.825796 60.210649 6524.1478 2.6586380e+10 0.15940111 0.039479474 81.158030 59.963464 6526.0495 2.4698512e+10 0.16445544 0.039719970 81.437179 59.750178 6527.9512 2.2859331e+10 0.17055681 0.041407023 81.694964 59.548705 6529.8528 2.1452247e+10 0.17533826 0.043594259 81.947858 59.348049 6531.7545 2.0290024e+10 0.17852878 0.046326853 82.194072 59.154065 6533.6562 1.9231189e+10 0.18025121 0.047798436 82.440342 58.954267 6535.5578 1.8021036e+10 0.18016583 0.047982312 82.717820 58.723716 6537.4595 1.6710907e+10 0.18010679 0.048901859 83.002146 58.483815 6539.3612 1.5389497e+10 0.17881121 0.050080812 83.240307 58.282314 6541.2628 1.4224391e+10 0.17683651 0.051241293 83.471596 58.080866 6543.1645 1.3239852e+10 0.17506359 0.051425068 83.702936 57.879375 6545.0662 1.2267476e+10 0.17366300 0.052456160 83.931225 57.677894 6546.9678 1.1396254e+10 0.17178640 0.053260903 84.152048 57.479158 6548.8695 1.0724894e+10 0.16956353 0.053927311 84.331155 57.317963 6550.7712 1.0193573e+10 0.16806077 0.055178456 84.524905 57.138026 6552.6728 9.7002246e+09 0.16675566 0.055417412 84.741334 56.929449 6554.5745 9.1244838e+09 0.16476441 0.054844436 84.957698 56.728002 6556.4762 8.5118748e+09 0.16261809 0.053943118 85.168800 56.526514 6558.3779 7.9126338e+09 0.16063038 0.052917329 85.377748 56.322255 6560.2795 7.3986977e+09 0.15835936 0.052022286 85.585135 56.114866 6562.1812 6.9976291e+09 0.15573835 0.050707496 85.746328 55.953670 6564.0829 6.6664150e+09 0.15260237 0.048734047 85.921909 55.775427 6565.9845 6.3605401e+09 0.15005675 0.047200456 86.123291 55.566585 6567.8862 5.9967271e+09 0.14833297 0.045867889 86.317272 55.365139 6569.7879 5.6839412e+09 0.14626717 0.044903702 86.485030 55.186889 6571.6895 5.4131722e+09 0.14387779 0.044314951 86.640418 55.019550 6573.5912 5.1591179e+09 0.14096174 0.043183059 86.834306 54.810749 6575.4929 4.8642748e+09 0.13834312 0.041880208 87.023395 54.606736 6577.3945 4.5635964e+09 0.13579561 0.039600653 87.197978 54.416267 6579.2962 4.3179835e+09 0.13304592 0.036907661 87.347233 54.249100 6581.1979 4.0937082e+09 0.13100932 0.035536691 87.515756 54.054951 6583.0995 3.8873981e+09 0.12958441 0.034971284 87.683864 53.860652 6585.0012 3.6860131e+09 0.12802509 0.033969807 87.827147 53.699456 6586.9029 3.5377584e+09 0.12615141 0.033159625 87.970434 53.534493 6588.8045 3.4084066e+09 0.12434158 0.033111250 88.113723 53.367327 6590.7062 3.2541141e+09 0.12225238 0.029748398 88.291216 53.160251 6592.6079 3.1093376e+09 0.12025022 0.027483087 88.444565 52.977051 6594.5096 2.9614547e+09 0.11806865 0.025892805 88.581877 52.809884 6596.4112 2.8128564e+09 0.11558211 0.025725404 88.744433 52.603446 6598.3129 2.6696339e+09 0.11388320 0.025257782 88.892465 52.419608 6600.2146 2.5140531e+09 0.11344951 0.025430962 89.029782 52.252442 6602.1162 2.3925647e+09 0.11274863 0.027417452 89.161571 52.085275 6604.0179 2.3099960e+09 0.11098847 0.026081901 89.291420 51.918109 6605.9196 2.2230563e+09 0.11041046 0.027436482 89.416793 51.750944 6607.8212 2.1280924e+09 0.10824929 0.024085376 89.564482 51.559754 6609.7229 2.0263173e+09 0.10532207 0.023920666 89.719502 51.360668 6611.6246 1.9204031e+09 0.10273295 0.024560167 89.844876 51.193501 6613.5262 1.8336037e+09 0.10155271 0.023766667 89.970233 51.026357 6615.4279 1.7553750e+09 0.099927643 0.023264697 90.095576 50.859233 6617.3296 1.6797598e+09 0.098581422 0.023548518 90.215662 50.692073 6619.2312 1.6129000e+09 0.097672307 0.024581709 90.335065 50.524907 6621.1329 1.5437163e+09 0.096885681 0.025045393 90.454472 50.357741 6623.0346 1.4785854e+09 0.095754602 0.024504636 90.573876 50.190574 6624.9362 1.4219143e+09 0.094681535 0.025363477 90.693279 50.023409 6626.8379 1.3758660e+09 0.092955663 0.025523324 90.812660 49.856279 6628.7396 1.3211625e+09 0.092093010 0.026003373 90.936176 49.680053 6630.6413 1.2522787e+09 0.090932491 0.025929882 91.077973 49.463620 6632.5429 1.1818738e+09 0.089895363 0.026097446 91.195790 49.288836 6634.4446 1.1187879e+09 0.088789970 0.026359273 91.309203 49.121704 6636.3463 1.0788947e+09 0.087467326 0.026415288 91.422638 48.954537 6638.2479 1.0401229e+09 0.086601049 0.025660841 91.536071 48.787372 6640.1496 9.9606564e+08 0.086699244 0.025252349 91.649501 48.620207 6642.0513 9.5501357e+08 0.086757766 0.025153794 91.758044 48.453041 6643.9529 9.1175114e+08 0.085820595 0.025336499 91.865505 48.285880 6645.8546 8.7498120e+08 0.084956469 0.025852031 91.972943 48.118754 6647.7563 8.4417216e+08 0.083993326 0.026835957 92.071992 47.962344 6649.6579 8.2167610e+08 0.082994886 0.026726757 92.161541 47.818072 6651.5596 8.0460113e+08 0.082320682 0.026913020 92.259311 47.663294 6653.4613 7.8341656e+08 0.081677360 0.027761170 92.366775 47.496127 6655.3629 7.5668603e+08 0.080247970 0.027760184 92.469557 47.328962 6657.2646 7.2283794e+08 0.078563750 0.029208048 92.571047 47.161801 6659.1663 6.9493819e+08 0.077045930 0.031799913 92.672520 46.994677 6661.0679 6.6643407e+08 0.075847610 0.032569555 92.774001 46.824946 6662.9696 6.4279982e+08 0.074883841 0.032500261 92.875493 46.651810 6664.8713 6.2154292e+08 0.074364785 0.029018106 92.976986 46.483202 6666.7730 5.9777957e+08 0.074256054 0.027059214 93.077978 46.316039 6668.6746 5.7804812e+08 0.073393478 0.028067764 93.173481 46.148912 6670.5763 5.5578336e+08 0.073493513 0.027061648 93.271428 45.981770 6672.4780 5.3621536e+08 0.073343689 0.027156631 93.372920 45.814605 6674.3796 5.2055502e+08 0.072441643 0.029275028 93.458360 45.664223 6676.2813 5.0516190e+08 0.070482776 0.031895015 93.537957 45.519949 6678.1830 4.9444543e+08 0.069738696 0.030814242 93.629072 45.359123 6680.0846 4.8537115e+08 0.070018554 0.029459691 93.724309 45.191960 6681.9863 4.7258935e+08 0.070665948 0.030414030 93.813841 45.024833 6683.8880 4.5558611e+08 0.070920399 0.032489904 93.905606 44.857692 6685.7896 4.3491947e+08 0.070588108 0.033538886 94.001126 44.690527 6687.6913 4.1586334e+08 0.068629792 0.033957354 94.082068 44.539333 6689.5930 4.0396340e+08 0.066544248 0.033482255 94.156694 44.395058 6691.4946 3.9702405e+08 0.065601970 0.032884561 94.245673 44.235069 6693.3963 3.8756412e+08 0.064792929 0.031468131 94.341096 44.067944 6695.2980 3.7580431e+08 0.064415198 0.029804739 94.430651 43.900780 6697.1996 3.5586664e+08 0.063904461 0.030116531 94.518191 43.733614 6699.1013 3.3145535e+08 0.062778776 0.031496949 94.601773 43.566447 6701.0030 3.1430181e+08 0.061164296 0.031413821 94.679423 43.414444 6702.9046 2.9811767e+08 0.060923621 0.033599097 94.754048 43.270171 6704.8063 2.8480186e+08 0.061132763 0.036573498 94.834503 43.110992 6706.7080 2.6844897e+08 0.060991089 0.039678599 94.918065 42.943865 6708.6097 2.5001560e+08 0.060747780 0.040707471 95.007480 42.776702 6710.5113 2.4095929e+08 0.059544042 0.040596580 95.091025 42.617949 6712.4130 2.3418658e+08 0.057760195 0.042596746 95.160675 42.478649 6714.3147 2.2817596e+08 0.055924018 0.047327065 95.234391 42.329476 6716.2163 2.2295313e+08 0.054393716 0.048719992 95.317973 42.156339 6718.1180 2.1483446e+08 0.052580675 0.049996185 95.401543 41.986911 6720.0197 2.0350559e+08 0.051715968 0.050417488 95.485105 41.819787 6721.9213 1.9688634e+08 0.051820881 0.050581501 95.550888 41.678858 6723.8230 1.8796897e+08 0.050107381 0.049827946 95.615565 41.539557 6725.7247 1.8701414e+08 0.046338970 0.041123353 95.697850 41.374305 6727.6263 1.8299540e+08 0.045404631 0.040125923 95.779901 41.207140 6729.5280 1.7604932e+08 0.044616338 0.040693497 95.857512 41.039975 6731.4297 1.7107843e+08 0.043023444 0.042605159 95.927593 40.886135 6733.3313 1.6194027e+08 0.042029405 0.045723270 95.992254 40.741889 6735.2330 1.5661714e+08 0.042476712 0.049540792 96.064311 40.584557 6737.1347 1.4749473e+08 0.043850927 0.054564594 96.141927 40.417392 6739.0363 1.4093920e+08 0.044372632 0.062871036 96.219538 40.250226 6740.9380 1.3744503e+08 0.043277772 0.065652804 96.294291 40.089217 6742.8397 1.3486801e+08 0.040155341 0.070656805 96.358968 39.949919 6744.7414 1.3212778e+08 0.036768063 0.078366831 96.426369 39.804752 6746.6430 1.2539316e+08 0.033451491 0.071511419 96.503961 39.637627 6748.5447 1.1919926e+08 0.032064569 0.069882539 96.578368 39.470480 6750.4464 1.1329633e+08 0.029276898 0.072766309 96.650012 39.303313 6752.3480 1.1037394e+08 0.026562371 0.073731743 96.715657 39.155848 6754.2497 1.1200593e+08 0.025483999 0.075811928 96.780330 39.011575 6756.1514 1.0946365e+08 0.023183964 0.074556393 96.850918 38.847864 6758.0530 1.0853571e+08 0.022802655 0.073817469 96.922547 38.680730 6759.9547 1.0456423e+08 0.023313695 0.076050340 96.994187 38.513565 6761.8564 98145510. 0.026265869 0.078038978 97.059856 38.360336 6763.7580 90852622. 0.029158649 0.078746387 97.119556 38.221038 6765.6597 87366451. 0.030779356 0.079651625 97.185108 38.068083 6767.5614 85263042. 0.029036114 0.081347171 97.256747 37.900916 6769.4630 84311215. 0.024751014 0.085577345 97.318656 37.756464 6771.3647 81773299. 0.021182597 0.090189727 97.378357 37.617165 6773.2664 77085473. 0.017459636 0.094802109 97.442852 37.455467 6775.1680 72104812. 0.013638562 0.099414491 97.509285 37.288337 6777.0697 68080273. 0.0097598519 0.10402687 97.580929 37.121170 6778.9714 66894234. 0.0059678922 0.10863926 97.644881 36.966672 6780.8731 64928484. 0.0019222356 0.11325164 97.699607 36.827373 6782.7747 64047538. -0.0023096626 0.11786402 97.761844 36.673049 6784.6764 64262080. -0.0069084558 0.12247640 97.833466 36.499955 6786.5781 61252339. -0.012985550 0.12708878 97.900512 36.331421 6788.4797 57090595. -0.022686372 0.13170116 97.965153 36.166881 6790.3814 53780335. -0.061536921 0.13631355 98.019878 36.027583 6792.2831 47986651. -0.039438315 0.14092593 98.075524 35.885940 6794.1847 48641987. 0.025662421 0.14553831 98.141196 35.718774