# # 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 = 49.892282 km # Date (UTC) = 2013-01-19T09:31:39.610 # Date (julian) = 2456311.89698622 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.8795 8.6814838e+10 0.047646834 0.032548412 107.80510 46.246537 6502.9756 7.7073083e+10 0.056231681 0.033180482 107.90000 46.118501 6505.0716 6.9258317e+10 0.065159959 0.033812552 107.99400 45.991598 6507.1677 6.3145912e+10 0.074550197 0.034444621 108.09191 45.860795 6509.2638 5.7873177e+10 0.084366551 0.035076691 108.19061 45.729192 6511.3599 5.2605866e+10 0.094427226 0.035708760 108.29701 45.586035 6513.4560 4.7667120e+10 0.10480091 0.036340830 108.40668 45.437978 6515.5521 4.3152744e+10 0.11552456 0.036972900 108.50259 45.308508 6517.6482 3.9384190e+10 0.12674079 0.037604969 108.59659 45.181607 6519.7443 3.6510152e+10 0.13858349 0.038237039 108.69059 45.051174 6521.8403 3.3888322e+10 0.15080886 0.038869109 108.78459 44.919571 6523.9364 3.1140590e+10 0.15754136 0.039411206 108.88494 44.777712 6526.0325 2.8382924e+10 0.16282838 0.039702184 108.98913 44.629655 6528.1286 2.5775606e+10 0.16895249 0.041544511 109.08141 44.494757 6530.2247 2.3571256e+10 0.17374073 0.044143270 109.17071 44.363155 6532.3208 2.1880422e+10 0.17755127 0.046952174 109.26002 44.234711 6534.4169 2.0366117e+10 0.17927873 0.048061173 109.34932 44.107809 6536.5130 1.8807464e+10 0.17931150 0.048249460 109.44673 43.966404 6538.6090 1.7214286e+10 0.17926328 0.049453255 109.55092 43.812864 6540.7051 1.5718379e+10 0.17804837 0.051187227 109.64437 43.678525 6542.8012 1.4426901e+10 0.17585423 0.051306427 109.73367 43.551622 6544.8973 1.3405421e+10 0.17400484 0.052372263 109.82018 43.424720 6546.9934 1.2524064e+10 0.17175332 0.053281932 109.90478 43.297818 6549.0895 1.1687625e+10 0.16917683 0.054057473 109.98939 43.168727 6551.1856 1.0912139e+10 0.16737081 0.055300890 110.07399 43.037126 6553.2817 1.0180188e+10 0.16567819 0.055193480 110.15859 42.907112 6555.3777 9.4979621e+09 0.16354674 0.054535966 110.24319 42.780209 6557.4738 8.8845949e+09 0.16129899 0.053569106 110.32779 42.652318 6559.5699 8.3431514e+09 0.15852365 0.052322853 110.41239 42.520717 6561.6660 7.8008011e+09 0.15558549 0.051044486 110.49816 42.387756 6563.7621 7.2551695e+09 0.15259584 0.049046796 110.59685 42.239728 6565.8582 6.7236384e+09 0.15013998 0.047343917 110.69067 42.095950 6567.9543 6.2348367e+09 0.14838553 0.045810326 110.77057 41.964346 6570.0504 5.8386774e+09 0.14653441 0.044896648 110.85047 41.833360 6572.1464 5.5030296e+09 0.14420870 0.044146289 110.93038 41.706459 6574.2425 5.1910197e+09 0.14123694 0.042738517 111.01028 41.579529 6576.3386 4.9129274e+09 0.13833732 0.040981632 111.09018 41.447938 6578.4347 4.6563452e+09 0.13504719 0.037963157 111.17008 41.316334 6580.5308 4.4123625e+09 0.13177615 0.036030220 111.24998 41.188849 6582.6269 4.1882580e+09 0.12867751 0.035123202 111.32988 41.061946 6584.7230 3.9675404e+09 0.12569377 0.034121681 111.40978 40.935044 6586.8191 3.7583065e+09 0.12307358 0.033160708 111.48969 40.808141 6588.9151 3.5606013e+09 0.12099602 0.033074314 111.56667 40.678322 6591.0112 3.3785414e+09 0.11872237 0.029189233 111.64187 40.546720 6593.1073 3.2066526e+09 0.11684968 0.027002444 111.71707 40.417435 6595.2034 3.0471346e+09 0.11454515 0.025644665 111.79227 40.290533 6597.2995 2.8920519e+09 0.11225181 0.025628217 111.86747 40.161913 6599.3956 2.7440314e+09 0.11086900 0.024953523 111.94268 40.030311 6601.4917 2.6115668e+09 0.11067644 0.027277239 112.01788 39.899827 6603.5878 2.4819441e+09 0.10941522 0.026315322 112.09308 39.772924 6605.6838 2.3553272e+09 0.10894354 0.027238736 112.16829 39.646022 6607.7799 2.2351507e+09 0.10704296 0.024166919 112.24349 39.519120 6609.8760 2.1239103e+09 0.10413051 0.023966151 112.31869 39.392217 6611.9721 2.0226961e+09 0.10165561 0.024338538 112.39389 39.260698 6614.0682 1.9314081e+09 0.10056542 0.023893508 112.46909 39.129096 6616.1643 1.8417289e+09 0.098938267 0.023308083 112.54027 39.001511 6618.2604 1.7546995e+09 0.098188812 0.023967407 112.61077 38.874609 6620.3565 1.6701987e+09 0.097304438 0.024882066 112.68127 38.744289 6622.4525 1.5881386e+09 0.095811633 0.024637540 112.75177 38.612687 6624.5486 1.5126807e+09 0.093969474 0.025155990 112.82228 38.483903 6626.6447 1.4443443e+09 0.092035187 0.025769469 112.89278 38.357000 6628.7408 1.3751135e+09 0.090491356 0.026003871 112.96328 38.230098 6630.8369 1.3085252e+09 0.088641845 0.025930364 113.03378 38.103196 6632.9330 1.2442928e+09 0.087253491 0.026144217 113.10428 37.974675 6635.0291 1.1868878e+09 0.085913127 0.026404147 113.17479 37.843073 6637.1252 1.1328014e+09 0.084678607 0.026100113 113.24529 37.712490 6639.2212 1.0802107e+09 0.084095690 0.025548997 113.31579 37.585587 6641.3173 1.0312378e+09 0.084891739 0.025149378 113.38587 37.458684 6643.4134 9.8501237e+08 0.084466316 0.025255040 113.45167 37.331782 6645.5095 9.4153933e+08 0.083671058 0.025690370 113.51747 37.204879 6647.6056 8.9844711e+08 0.082800458 0.026756629 113.58779 37.077977 6649.7017 8.5945859e+08 0.082050878 0.026666452 113.65829 36.951075 6651.7978 8.1924250e+08 0.081689457 0.027095541 113.72487 36.820253 6653.8939 7.8552938e+08 0.081144492 0.027982033 113.79067 36.688652 6655.9899 7.5195486e+08 0.079508627 0.028019263 113.85647 36.560369 6658.0860 7.1339008e+08 0.078236753 0.030213660 113.92227 36.433467 6660.1821 6.7987264e+08 0.076913651 0.031791536 113.98807 36.306565 6662.2782 6.4912547e+08 0.075556688 0.032888180 114.05388 36.179662 6664.3743 6.2048975e+08 0.074510788 0.030836558 114.11968 36.050640 6666.4704 5.9711435e+08 0.074409736 0.027000255 114.18548 35.919037 6668.5665 5.7001761e+08 0.073415034 0.027972060 114.25129 35.788955 6670.6626 5.4642471e+08 0.073227158 0.027021680 114.31709 35.662053 6672.7586 5.2544343e+08 0.072852011 0.027319323 114.38197 35.535151 6674.8547 5.0124648e+08 0.071469388 0.029675814 114.44307 35.408248 6676.9508 4.7890025e+08 0.069272780 0.032326522 114.50449 35.281346 6679.0469 4.5595222e+08 0.068714878 0.030229009 114.57029 35.154444 6681.1430 4.3740035e+08 0.069867338 0.029767062 114.63609 35.027541 6683.2391 4.1855504e+08 0.070571403 0.031538959 114.69747 34.900639 6685.3352 4.0168824e+08 0.070482605 0.033058859 114.75857 34.773737 6687.4313 3.8441156e+08 0.068742742 0.034102384 114.81967 34.643013 6689.5273 3.6732270e+08 0.066579078 0.033541330 114.88077 34.511411 6691.6234 3.5394695e+08 0.065753949 0.032854174 114.94188 34.383029 6693.7195 3.3986493e+08 0.064973710 0.031357249 115.00298 34.256127 6695.8156 3.3040485e+08 0.064830468 0.029709656 115.06408 34.129225 6697.9117 3.1666080e+08 0.064199091 0.030206642 115.12518 34.002322 6700.0078 3.0100369e+08 0.062798603 0.030673490 115.18628 33.875420 6702.1039 2.8618361e+08 0.061306836 0.032959670 115.24738 33.748518 6704.2000 2.7017848e+08 0.061765716 0.036275742 115.30848 33.621615 6706.2960 2.5877031e+08 0.061738671 0.038961646 115.36958 33.494713 6708.3921 2.4315232e+08 0.061428524 0.040470595 115.43068 33.367811 6710.4882 2.3106241e+08 0.060114552 0.040592058 115.49179 33.240907 6712.5843 2.2207519e+08 0.058124929 0.042914820 115.55267 33.114004 6714.6804 2.1643443e+08 0.056099084 0.047354560 115.60907 32.987102 6716.7765 2.0963407e+08 0.054173188 0.049545046 115.66546 32.860200 6718.8726 1.9946515e+08 0.051886113 0.051171374 115.72619 32.733299 6720.9687 1.9030598e+08 0.052194298 0.050307530 115.78729 32.606398 6723.0647 1.8226251e+08 0.051152846 0.049405053 115.84467 32.479496 6725.1608 1.7804016e+08 0.046958327 0.041475557 115.90107 32.352594 6727.2569 1.7173996e+08 0.045559889 0.040618097 115.95747 32.225692 6729.3530 1.6893174e+08 0.044997302 0.040810140 116.01387 32.098789 6731.4491 1.6160083e+08 0.043310040 0.042643804 116.07531 31.960548 6733.5452 1.5336653e+08 0.042261380 0.046884253 116.14111 31.812519 6735.6413 1.4748481e+08 0.043297150 0.049974186 116.20020 31.679549 6737.7374 1.4049406e+08 0.044689833 0.056484430 116.25660 31.552646 6739.8334 1.3656597e+08 0.044712663 0.063846528 116.31300 31.425744 6741.9295 1.3418789e+08 0.042699104 0.068409767 116.36940 31.298842 6744.0256 1.3419376e+08 0.038027451 0.077813227 116.42580 31.171939 6746.1217 1.3143402e+08 0.036593719 0.077572315 116.48220 31.045037 6748.2178 1.2637540e+08 0.033014142 0.068162716 116.53860 30.918135 6750.3139 1.1585498e+08 0.030262888 0.072540095 116.59501 30.791234 6752.4100 1.0386855e+08 0.027461990 0.073660067 116.65141 30.664332 6754.5061 1.0085486e+08 0.026106334 0.075399671 116.70781 30.537430 6756.6021 94445528. 0.023479015 0.075716311 116.76386 30.410527 6758.6982 94297831. 0.023935460 0.075181822 116.81556 30.283624 6760.7943 93443913. 0.024358485 0.077575998 116.86726 30.156721 6762.8904 89536048. 0.029356843 0.076614549 116.93232 30.009784 6764.9865 87289517. 0.031832621 0.079530546 116.99638 29.864918 6767.0826 82376655. 0.031547074 0.081883297 117.04808 29.742717 6769.1787 79098328. 0.026834421 0.084887608 117.09978 29.620516 6771.2748 75610119. 0.023026423 0.089971542 117.15148 29.493633 6773.3708 73278568. 0.019252290 0.095055475 117.20318 29.366731 6775.4669 70044548. 0.015438912 0.10013941 117.25488 29.239829 6777.5630 67953733. 0.011635021 0.10522334 117.30659 29.112926 6779.6591 64594283. 0.0077142488 0.11030728 117.36467 28.970357 6781.7552 59360618. 0.0035770459 0.11539121 117.42499 28.822299 6783.8513 56201967. -0.00066128311 0.12047514 117.47741 28.693640 6785.9474 54420737. -0.0051336208 0.12555908 117.52911 28.566739 6788.0435 55696881. -0.0098740334 0.13064301 117.58081 28.443546 6790.1395 54086940. -0.016685755 0.13572694 117.63251 28.321344 6792.2356 50545949. -0.039648140 0.14081088 117.68991 28.182035 6794.3317 48608041. -0.028044284 0.14589481 117.75023 28.033978 6796.4278 48055600. 0.0029056628 0.15097874 117.80333 27.903649