# # 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 = 60.283463 km # Date (UTC) = 2011-11-24T10:57:37.330 # Date (julian) = 2455889.95668206 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.5670 1.5854904e+11 0.055742859 0.032755746 87.964420 34.732413 6504.4270 1.2691007e+11 0.066717384 0.033618168 88.058574 34.550809 6507.2870 1.0287120e+11 0.077653011 0.034480590 88.148356 34.364831 6510.1470 8.5436533e+10 0.088728835 0.035343012 88.229618 34.200759 6513.0070 7.2461102e+10 0.10010979 0.036205434 88.308175 34.043645 6515.8670 6.2489213e+10 0.11196317 0.037067856 88.397697 33.864600 6518.7270 5.4132702e+10 0.12432291 0.037930277 88.480451 33.692065 6521.5870 4.7090334e+10 0.13726586 0.038792699 88.553400 33.529341 6524.4469 4.1537389e+10 0.14436701 0.039585740 88.637043 33.355917 6527.3069 3.6736573e+10 0.14954324 0.040939308 88.726337 33.176352 6530.1669 3.2425444e+10 0.15348337 0.044062385 88.809704 32.996789 6533.0269 2.8813148e+10 0.15655700 0.047531023 88.890586 32.825925 6535.8869 2.5833748e+10 0.15711929 0.047839564 88.969143 32.663198 6538.7469 2.3292658e+10 0.15962597 0.049520375 89.051237 32.488105 6541.6069 2.0984035e+10 0.16098191 0.051129725 89.132782 32.312475 6544.4669 1.8876610e+10 0.16209733 0.052023076 89.205727 32.155361 6547.3269 1.6988772e+10 0.16312282 0.053411660 89.282768 31.989423 6550.1868 1.5402165e+10 0.16335804 0.055032142 89.366135 31.809859 6553.0468 1.4018985e+10 0.16218162 0.055311528 89.440816 31.644332 6555.9068 1.2848797e+10 0.15941365 0.054091423 89.513765 31.481895 6558.7668 1.1919876e+10 0.15656475 0.052585893 89.586710 31.324780 6561.6268 1.0988286e+10 0.15340830 0.051063812 89.660736 31.161616 6564.4868 1.0084649e+10 0.15042542 0.048550989 89.737693 30.982053 6567.3468 9.2767989e+09 0.14837634 0.046323986 89.811809 30.818414 6570.2068 8.5272090e+09 0.14685363 0.044831863 89.884765 30.661275 6573.0667 7.8867791e+09 0.14501478 0.043603921 89.961435 30.483321 6575.9267 7.3033560e+09 0.14263420 0.041444904 90.036912 30.312040 6578.7867 6.7654179e+09 0.14003635 0.037407290 90.109857 30.154924 6581.6467 6.2790382e+09 0.13787143 0.035400777 90.185156 29.984636 6584.5067 5.8193177e+09 0.13590990 0.034239494 90.261850 29.805688 6587.3667 5.3917246e+09 0.13406145 0.033239613 90.329182 29.648574 6590.2267 5.0457688e+09 0.13169268 0.030640419 90.396515 29.491459 6593.0867 4.7596194e+09 0.12868053 0.027021652 90.463852 29.334344 6595.9467 4.4649815e+09 0.12511738 0.025721741 90.535644 29.166832 6598.8066 4.1697157e+09 0.12252280 0.025022048 90.612602 28.987268 6601.6666 3.8948759e+09 0.12200333 0.027359633 90.680860 28.827994 6604.5266 3.6448456e+09 0.12014649 0.026383963 90.749363 28.668148 6607.3866 3.4101025e+09 0.11808336 0.024943600 90.826321 28.488584 6610.2466 3.1793806e+09 0.11359844 0.024238591 90.894712 28.321644 6613.1066 2.9696664e+09 0.11061261 0.023612694 90.956436 28.164529 6615.9666 2.8157053e+09 0.10779483 0.023281270 91.022536 28.007414 6618.8266 2.6724307e+09 0.10641268 0.024394943 91.089871 27.850277 6621.6865 2.5140368e+09 0.10536539 0.024861889 91.160405 27.670779 6624.5465 2.3600343e+09 0.10379734 0.025154865 91.229541 27.501065 6627.4065 2.2096137e+09 0.10213205 0.025473843 91.296878 27.343951 6630.2665 2.0776736e+09 0.10094501 0.025928958 91.366320 27.176307 6633.1265 1.9549097e+09 0.099371029 0.026174338 91.436005 27.004716 6635.9865 1.8310214e+09 0.097665577 0.026547726 91.497729 26.847601 6638.8465 1.7327500e+09 0.096448161 0.025634764 91.559453 26.690485 6641.7065 1.6498888e+09 0.097106798 0.025150699 91.621177 26.533369 6644.5664 1.5618208e+09 0.096049887 0.025404827 91.687602 26.364289 6647.4264 1.4734559e+09 0.094704686 0.026662301 91.758146 26.184726 6650.2864 1.3884327e+09 0.093679801 0.026320808 91.820111 26.032462 6653.1464 1.3100317e+09 0.092978626 0.027600415 91.883534 25.875558 6656.0064 1.2393472e+09 0.090732144 0.028029036 91.954077 25.695994 6658.8664 1.1640824e+09 0.088513149 0.031597638 92.019039 25.534178 6661.7264 1.0947549e+09 0.086581400 0.032904909 92.080759 25.382675 6664.5864 1.0403948e+09 0.084974481 0.030060600 92.142483 25.226399 6667.4464 9.9080730e+08 0.084161096 0.027267411 92.204809 25.067752 6670.3063 9.4109251e+08 0.082982540 0.027186709 92.275352 24.888188 6673.1663 8.9116982e+08 0.082102286 0.027707976 92.338553 24.722904 6676.0263 8.4725209e+08 0.079000011 0.031730686 92.394669 24.571401 6678.8863 8.0274526e+08 0.077262150 0.030343814 92.461266 24.399506 6681.7463 7.5954798e+08 0.078194454 0.030229904 92.529390 24.224639 6684.6063 7.2069681e+08 0.078328111 0.032684858 92.585506 24.073135 6687.4663 6.8117954e+08 0.076298881 0.034082856 92.644709 23.910821 6690.3263 6.5145196e+08 0.073796737 0.033078474 92.708838 23.731257 6693.1862 6.2203016e+08 0.072671617 0.031540194 92.770981 23.574869 6696.0462 5.9278105e+08 0.072140179 0.029694995 92.832810 23.422418 6698.9062 5.6686565e+08 0.070725261 0.031461713 92.896939 23.249267 6701.7662 5.3704032e+08 0.068566630 0.032533696 92.957184 23.083885 6704.6262 5.1165646e+08 0.068911406 0.036485051 93.013295 22.926770 6707.4862 4.8838718e+08 0.068576895 0.040117180 93.075038 22.758393 6710.3462 4.6472240e+08 0.067148745 0.040564254 93.138021 22.588339 6713.2062 4.4555750e+08 0.064404989 0.044432277 93.194137 22.436834 6716.0662 4.2441908e+08 0.061830008 0.048498796 93.253144 22.275204 6718.9261 4.0491744e+08 0.058722588 0.051254808 93.317273 22.095640 6721.7861 3.8685000e+08 0.058953587 0.050540764 93.381402 21.921217 6724.6461 3.6427358e+08 0.055129067 0.044531169 93.443589 21.753310 6727.5061 3.4661675e+08 0.052557962 0.040286109 93.499701 21.601806 6730.3661 3.3079220e+08 0.051045030 0.040880861 93.559501 21.440344 6733.2261 3.1701788e+08 0.049266220 0.045151769 93.623629 21.267193 6736.0861 3.0595140e+08 0.050363949 0.050680398 93.680541 21.108485 6738.9461 2.9405729e+08 0.051553910 0.062529576 93.736847 20.949468 6741.8060 2.8270699e+08 0.049375170 0.068057582 93.794561 20.776318 6744.6660 2.7010927e+08 0.044142171 0.078308572 93.855863 20.603168 6747.5260 2.5682368e+08 0.039529844 0.067180072 93.919963 20.430063 6750.3860 2.4651209e+08 0.037028203 0.072663260 93.970497 20.278512 6753.2460 2.3651922e+08 0.034109858 0.073773386 94.023967 20.122294 6756.1060 2.2692728e+08 0.031246279 0.074439629 94.088096 19.949142 6758.9660 2.1596173e+08 0.031247172 0.075748004 94.148002 19.775991 6761.8260 2.0499280e+08 0.034597974 0.078036466 94.206353 19.602842 6764.6860 1.9546055e+08 0.038861030 0.079516148 94.270486 19.429691 6767.5459 1.8567630e+08 0.038018665 0.081364455 94.331155 19.256540 6770.4059 1.7758790e+08 0.032045748 0.087864254 94.388870 19.083389 6773.2659 1.7147248e+08 0.026832534 0.094800982 94.439514 18.931462 6776.1259 1.6436281e+08 0.021625128 0.10173771 94.492719 18.775666 6778.9859 1.5884238e+08 0.016379544 0.10867444 94.556849 18.602515 6781.8459 1.5038964e+08 0.011162817 0.11561117 94.616879 18.429365 6784.7059 1.4395125e+08 0.0059025927 0.12254790 94.674594 18.256214 6787.5659 1.3965147e+08 0.00060544757 0.12948463 94.732313 18.083063 6790.4258 1.3099653e+08 -0.0046548244 0.13642135 94.790030 17.913249 6793.2858 1.2672201e+08 -0.0099736170 0.14335808 94.847745 17.746511 6796.1458 1.1943364e+08 -0.015279146 0.15029481 94.905464 17.573611 6799.0058 1.1395510e+08 -0.020608468 0.15723154 94.963181 17.400461 6801.8658 1.0825764e+08 -0.025948613 0.16416827 95.020896 17.227311 6804.7258 1.0148906e+08 -0.031301680 0.17110500 95.078615 17.054160 6807.5858 98598012. -0.036629288 0.17804173 95.136333 16.882822 6810.4458 94678129. -0.041935496 0.18497846 95.194047 16.716085 6813.3058 93938088. -0.047180461 0.19191518 95.251765 16.544707 6816.1657 90514822. -0.052446328 0.19885191 95.308430 16.371556 6819.0257 86112987. -0.057740972 0.20578864 95.359730 16.198405 6821.8857 82745395. -0.063030126 0.21272537 95.414914 16.029134 6824.7457 77309683. -0.068406632 0.21966210 95.473072 15.860789 6827.6057 74842665. -0.073720645 0.22659883 95.540408 15.658773 6830.4657 70681723. -0.079154589 0.23353556 95.600925 15.477224 6833.3257 64603197. -0.084809211 0.24047228 95.657684 15.305034 6836.1857 60382602. -0.090558614 0.24740901 95.708989 15.138296 6839.0456 58001140. -0.096472883 0.25434574 95.764078 14.967772 6841.9056 57053606. -0.10276972 0.26128247 95.821859 14.793958 6844.7656 57442673. -0.11064434 0.26821920 95.881716 14.599425 6847.6256 54908166. -0.13440329 0.27515593 95.940086 14.419743 6850.4856 51824668. -0.12414066 0.28209266 95.998090 14.243702 6853.3456 48646626. -0.092334223 0.28902939 96.057948 14.049168