# # 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 = 57.413386 km # Date (UTC) = 2013-12-05T09:46:04.992 # Date (julian) = 2456631.90700222 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6491.6577 7.3059429e+10 0.024828332 0.029767618 108.43669 29.210208 6493.8057 6.8287558e+10 0.030919955 0.030415328 108.48856 29.098478 6495.9536 6.3148511e+10 0.036759128 0.031063038 108.54335 28.980478 6498.1016 5.8370564e+10 0.042357551 0.031710748 108.59778 28.864982 6500.2495 5.4264952e+10 0.047877044 0.032358458 108.65023 28.763843 6502.3975 5.0694593e+10 0.053560670 0.033006168 108.70267 28.662703 6504.5455 4.7594788e+10 0.059600486 0.033653879 108.75332 28.559769 6506.6934 4.5036170e+10 0.066327777 0.034301589 108.80202 28.454882 6508.8414 4.2533703e+10 0.073854217 0.034949299 108.85072 28.349996 6510.9893 3.9829515e+10 0.082224859 0.035597009 108.90434 28.234496 6513.1373 3.6895539e+10 0.091459199 0.036244719 108.95912 28.116497 6515.2852 3.3940447e+10 0.10164366 0.036892429 109.00962 28.005851 6517.4332 3.1410704e+10 0.11314564 0.037540139 109.05458 27.904697 6519.5811 2.9318521e+10 0.12602131 0.038187850 109.09954 27.803544 6521.7291 2.7316412e+10 0.13995337 0.038835560 109.15203 27.689466 6523.8770 2.5250313e+10 0.14916766 0.039396487 109.20682 27.571467 6526.0250 2.3190617e+10 0.15701092 0.039694300 109.25920 27.460116 6528.1730 2.1346523e+10 0.16594800 0.041579691 109.30790 27.358975 6530.3209 1.9798308e+10 0.17262859 0.044277969 109.35660 27.257834 6532.4689 1.8454492e+10 0.17701134 0.047075881 109.40258 27.153979 6534.6168 1.7285558e+10 0.17803106 0.048117107 109.44753 27.049094 6536.7648 1.6160980e+10 0.17682867 0.048474767 109.49302 26.943717 6538.9127 1.4958674e+10 0.17542261 0.049601134 109.54781 26.829931 6541.0607 1.3741026e+10 0.17368593 0.051306848 109.60260 26.716146 6543.2086 1.2571205e+10 0.17179419 0.051436653 109.65068 26.608424 6545.3566 1.1582705e+10 0.17002613 0.052458762 109.69563 26.503523 6547.5046 1.0784915e+10 0.16834586 0.053479237 109.74064 26.398672 6549.6525 1.0083751e+10 0.16672475 0.054631237 109.78934 26.297532 6551.8005 9.4531902e+09 0.16522921 0.055516726 109.83804 26.196391 6553.9484 8.8429267e+09 0.16309973 0.054858310 109.88738 26.089459 6556.0964 8.2101861e+09 0.16120452 0.053998957 109.93795 25.971460 6558.2443 7.5811423e+09 0.15962201 0.053031107 109.98851 25.853462 6560.3923 7.0104260e+09 0.15736502 0.051920616 110.03363 25.751827 6562.5402 6.5219675e+09 0.15504160 0.050365848 110.07858 25.650686 6564.6882 6.1162216e+09 0.15269417 0.048459708 110.12354 25.549546 6566.8361 5.7641147e+09 0.15062145 0.046709878 110.16849 25.448405 6568.9841 5.4397876e+09 0.14848575 0.044867038 110.21344 25.347265 6571.1321 5.1383259e+09 0.14689968 0.044467208 110.26194 25.235467 6573.2800 4.8299631e+09 0.14483387 0.043432778 110.31252 25.117451 6575.4280 4.5248670e+09 0.14235079 0.041945322 110.36164 25.003806 6577.5759 4.2458383e+09 0.13967978 0.039315738 110.40659 24.902665 6579.7239 4.0150865e+09 0.13703098 0.036672550 110.45155 24.801525 6581.8718 3.8206693e+09 0.13490326 0.035332606 110.49429 24.700384 6584.0198 3.6567012e+09 0.13301521 0.034504732 110.53549 24.599244 6586.1677 3.5027236e+09 0.13135875 0.033169128 110.57670 24.498103 6588.3157 3.3370011e+09 0.13015166 0.033274503 110.62652 24.381455 6590.4637 3.1666015e+09 0.12826756 0.030199602 110.67709 24.263455 6592.6116 2.9903885e+09 0.12639405 0.027479469 110.72458 24.154678 6594.7596 2.8261526e+09 0.12442582 0.025755560 110.76954 24.053538 6596.9075 2.6845653e+09 0.12211972 0.025723148 110.81449 23.952399 6599.0555 2.5617092e+09 0.12045677 0.024933067 110.85616 23.851246 6601.2034 2.4542743e+09 0.12055252 0.027141492 110.89737 23.750092 6603.3514 2.3490200e+09 0.11949352 0.026455256 110.94053 23.646308 6605.4993 2.2377246e+09 0.11898217 0.027083947 110.99110 23.532524 6607.6473 2.1274723e+09 0.11730371 0.024428837 111.04167 23.418739 6609.7952 2.0235185e+09 0.11441397 0.023942157 111.08442 23.315516 6611.9432 1.9394853e+09 0.11189608 0.024356972 111.12563 23.214375 6614.0912 1.8637312e+09 0.11077334 0.023877689 111.16683 23.113235 6616.2391 1.7920350e+09 0.10907346 0.023319827 111.20804 23.012095 6618.3871 1.7305651e+09 0.10815723 0.024063077 111.24924 22.910956 6620.5350 1.6600973e+09 0.10712905 0.024939608 111.29509 22.803541 6622.6830 1.5881605e+09 0.10546003 0.024576207 111.34566 22.689756 6624.8309 1.5126216e+09 0.10371348 0.025307103 111.39508 22.577528 6626.9789 1.4409066e+09 0.10157846 0.025343710 111.43629 22.476375 6629.1268 1.3867221e+09 0.10050781 0.026086172 111.47750 22.375221 6631.2748 1.3310780e+09 0.099005999 0.025958680 111.52105 22.268332 6633.4228 1.2747775e+09 0.097919169 0.026226061 111.56741 22.154547 6635.5707 1.2156010e+09 0.096695481 0.026485374 111.61335 22.041788 6637.7187 1.1658153e+09 0.095688948 0.025809433 111.65455 21.940648 6639.8666 1.1206440e+09 0.095502106 0.025318326 111.69576 21.839508 6642.0146 1.0810411e+09 0.095697151 0.025152292 111.73908 21.733163 6644.1625 1.0356651e+09 0.094723071 0.025361172 111.78544 21.619378 6646.3105 9.8821326e+08 0.093785515 0.026080863 111.83160 21.506083 6648.4584 9.4755985e+08 0.092704679 0.027271163 111.87280 21.404943 6650.6064 9.1100895e+08 0.092073430 0.026394057 111.91401 21.303803 6652.7543 8.8021367e+08 0.091514470 0.027458072 111.95556 21.197988 6654.9023 8.4565425e+08 0.090299137 0.027651837 111.99771 21.084186 6657.0503 8.0970263e+08 0.088281175 0.028959407 112.03986 20.970432 6659.1982 7.7860460e+08 0.086598225 0.031793251 112.08107 20.872935 6661.3462 7.5053017e+08 0.085062840 0.032711260 112.12227 20.775540 6663.4941 7.2536660e+08 0.083545834 0.032346280 112.16516 20.672785 6665.6421 6.9636713e+08 0.083078025 0.027495066 112.21152 20.559001 6667.7900 6.6598492e+08 0.082239368 0.027393650 112.25788 20.445216 6669.9380 6.4210200e+08 0.081282024 0.027392325 112.29574 20.343496 6672.0859 6.1678041e+08 0.080771619 0.026929412 112.33320 20.242356 6674.2339 5.9639329e+08 0.079635454 0.029152098 112.37319 20.137617 6676.3819 5.7246826e+08 0.077344275 0.031959825 112.41955 20.023832 6678.5298 5.4771509e+08 0.076544892 0.030582257 112.46591 19.910047 6680.6778 5.2859335e+08 0.077248700 0.029587773 112.50415 19.811206 6682.8257 5.1198080e+08 0.077889086 0.031055422 112.54161 19.713811 6684.9737 4.9619592e+08 0.077754823 0.032703502 112.58123 19.612444 6687.1216 4.7782565e+08 0.076015333 0.034275068 112.62759 19.498643 6689.2696 4.5273215e+08 0.073466312 0.033773358 112.67395 19.384841 6691.4175 4.3141278e+08 0.072571004 0.032902752 112.71257 19.285307 6693.5655 4.1918160e+08 0.071585525 0.031410090 112.75003 19.187913 6695.7134 4.0870884e+08 0.071188353 0.029728422 112.78843 19.087240 6697.8614 3.9935005e+08 0.070338147 0.030200277 112.83057 18.973455 6700.0094 3.8597742e+08 0.068720579 0.030674658 112.87271 18.859670 6702.1573 3.6701263e+08 0.067139197 0.033002344 112.91834 18.745886 6704.3053 3.5067980e+08 0.067452293 0.036327455 112.96470 18.632101 6706.4532 3.3482765e+08 0.067291421 0.039235200 113.00701 18.525761 6708.6012 3.2084661e+08 0.066772448 0.040698238 113.04447 18.428366 6710.7491 3.1197346e+08 0.065150126 0.040643128 113.08193 18.330971 6712.8971 3.0527592e+08 0.063034847 0.043495547 113.12307 18.224022 6715.0450 2.9210988e+08 0.061016986 0.047424655 113.16521 18.114452 6717.1930 2.8135367e+08 0.058906374 0.049862331 113.20736 18.003139 6719.3410 2.7051426e+08 0.056889723 0.051045911 113.24951 17.889338 6721.4889 2.5974489e+08 0.057229356 0.050451209 113.29165 17.775703 6723.6369 2.4969867e+08 0.055695143 0.049724132 113.33380 17.666133 6725.7848 2.3635421e+08 0.051869166 0.041085783 113.37594 17.556562 6727.9328 2.2710302e+08 0.051190340 0.039717668 113.41496 17.452609 6730.0807 2.2234950e+08 0.049987206 0.040489587 113.45242 17.351469 6732.2287 2.1644383e+08 0.048524813 0.043782308 113.48989 17.250305 6734.3766 2.0564428e+08 0.048103950 0.049330938 113.53200 17.140785 6736.5246 1.9783485e+08 0.049976145 0.052338252 113.57415 17.031214 6738.6725 1.9215719e+08 0.051033864 0.061023764 113.61629 16.921643 6740.8205 1.8933390e+08 0.050210222 0.065452046 113.65843 16.812073 6742.9685 1.8280616e+08 0.046947329 0.070970576 113.69952 16.701445 6745.1164 1.7559400e+08 0.043831406 0.078615824 113.73745 16.587660 6747.2644 1.7155063e+08 0.039387717 0.067270150 113.77537 16.473875 6749.4123 1.6473089e+08 0.038601549 0.072165039 113.81700 16.363791 6751.5603 1.6031568e+08 0.035552578 0.073948559 113.85914 16.254222 6753.7082 1.5182259e+08 0.033905995 0.075269252 113.90129 16.144651 6755.8562 1.4172467e+08 0.031830793 0.074229962 113.94343 16.035080 6758.0041 1.3731449e+08 0.031170681 0.073714078 113.98558 15.925506 6760.1521 1.3311985e+08 0.031895575 0.076351310 114.02773 15.815920 6762.3001 1.2963061e+08 0.036070603 0.077566839 114.06987 15.706333 6764.4480 1.2575675e+08 0.039040243 0.079504748 114.10881 15.596759 6766.5960 1.2074480e+08 0.039943141 0.081061820 114.14674 15.487189 6768.7439 1.1542917e+08 0.035926923 0.083532808 114.18630 15.377618 6770.8919 1.1071330e+08 0.032073983 0.089042878 114.22844 15.268048 6773.0398 1.0661238e+08 0.028411789 0.094252613 114.27052 15.158477 6775.1878 1.0259084e+08 0.024766288 0.099462348 114.30845 15.048907 6777.3357 1.0229637e+08 0.020962135 0.10467208 114.34638 14.939337 6779.4837 98542834. 0.017311101 0.10988182 114.38701 14.829766 6781.6316 94086419. 0.013701056 0.11509155 114.42916 14.720195 6783.7796 89866906. 0.010098251 0.12030129 114.47017 14.610625 6785.9276 87434604. 0.0064092329 0.12551102 114.50810 14.501054 6788.0755 84774895. 0.0027478164 0.13072076 114.54603 14.391484 6790.2235 77877330. -0.00061174410 0.13593049 114.58881 14.267899 6792.3714 75316562. -0.0042251053 0.14114023 114.63215 14.142673 6794.5194 74652795. -0.0079646197 0.14634996 114.67451 14.030268 6796.6673 78078025. -0.011989274 0.15155970 114.71665 13.920697 6798.8153 79841856. -0.015862602 0.15676944 114.75692 13.811127 6800.9632 78025395. -0.019453124 0.16197917 114.79485 13.701557 6803.1112 72678401. -0.022676915 0.16718891 114.83317 13.590842 6805.2591 69213566. -0.025885508 0.17239864 114.87652 13.465615 6807.4071 64965763. -0.028744556 0.17760838 114.91986 13.340432 6809.5551 58271624. -0.030714670 0.18281811 114.96201 13.230769 6811.7030 53756245. -0.031811836 0.18802785 115.00415 13.121199 6813.8510 49378900. -0.030695336 0.19323758 115.04367 13.011618 6815.9989 45481737. -0.0067278413 0.19844732 115.08160 12.902031 6818.1469 45463300. -0.033411006 0.20365705 115.12090 12.788512 6820.2948 46213263. -0.084726924 0.20886679 115.16425 12.663286