# # 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 = 62.666664 km # Date (UTC) = 2014-01-27T10:45:16.907 # Date (julian) = 2456684.94811235 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6505.0509 3.6906468e+10 0.064806438 0.033806297 88.850776 50.699960 6507.6731 3.3740793e+10 0.076002390 0.034597024 89.028421 50.488880 6510.2954 3.0999350e+10 0.087588431 0.035387752 89.186167 50.296836 6512.9176 2.8608966e+10 0.099607146 0.036178479 89.365232 50.069702 6515.5398 2.6197220e+10 0.11191362 0.036969207 89.546345 49.839197 6518.1621 2.3988284e+10 0.12464918 0.037759934 89.712879 49.627245 6520.7843 2.1959023e+10 0.13779154 0.038550662 89.864560 49.434196 6523.4065 2.0201325e+10 0.14742249 0.039279873 90.045630 49.203746 6526.0288 1.8632519e+10 0.15266652 0.039698252 90.196715 49.004382 6528.6510 1.6986024e+10 0.15814384 0.041958927 90.350933 48.798757 6531.2732 1.5596474e+10 0.16200147 0.045626382 90.519843 48.573541 6533.8955 1.4266178e+10 0.16510904 0.047900136 90.663903 48.381461 6536.5177 1.2995529e+10 0.16621273 0.048253706 90.827533 48.163288 6539.1399 1.1958066e+10 0.16773479 0.049813021 90.983800 47.950679 6541.7622 1.0915423e+10 0.16821714 0.051079363 91.121205 47.758315 6544.3844 9.9723858e+09 0.16818850 0.051956185 91.285850 47.527810 6547.0066 9.1323515e+09 0.16811008 0.053289889 91.428741 47.327760 6549.6289 8.2863441e+09 0.16698906 0.054607151 91.572375 47.122812 6552.2511 7.5805806e+09 0.16537289 0.055523563 91.726481 46.896925 6554.8733 6.9625306e+09 0.16284076 0.054850707 91.863658 46.704882 6557.4956 6.4346110e+09 0.15990202 0.053555481 91.996306 46.512815 6560.1178 6.0260758e+09 0.15693461 0.052168092 92.125241 46.320735 6562.7400 5.6250363e+09 0.15376082 0.050175729 92.248722 46.128655 6565.3623 5.2260387e+09 0.15113357 0.047907032 92.396797 45.901733 6567.9845 4.8529272e+09 0.14922381 0.045784763 92.535692 45.687814 6570.6067 4.5053152e+09 0.14764431 0.044666177 92.659171 45.495734 6573.2290 4.2172127e+09 0.14583405 0.043473737 92.782627 45.303693 6575.8512 3.9702285e+09 0.14346395 0.041520681 92.906099 45.111627 6578.4734 3.7520896e+09 0.14085216 0.037901999 93.029580 44.919546 6581.0957 3.5553735e+09 0.13810096 0.035567638 93.153061 44.727463 6583.7179 3.3459252e+09 0.13595163 0.034658295 93.288083 44.508452 6586.3401 3.1271762e+09 0.13376412 0.033166899 93.416691 44.296626 6588.9624 2.9100743e+09 0.13178586 0.033058543 93.533310 44.104546 6591.5846 2.7239398e+09 0.12898424 0.028542251 93.649906 43.912504 6594.2068 2.5717355e+09 0.12598361 0.026058979 93.766519 43.716527 6596.8291 2.4271802e+09 0.12259350 0.025723504 93.883143 43.518358 6599.4513 2.2939020e+09 0.12031739 0.024956874 93.999763 43.326275 6602.0735 2.1655296e+09 0.11936804 0.027453878 94.111888 43.134193 6604.6958 2.0516819e+09 0.11732175 0.026484403 94.221647 42.942113 6607.3180 1.9488855e+09 0.11489868 0.025079054 94.331410 42.750033 6609.9402 1.8502780e+09 0.11054828 0.023985227 94.441169 42.557951 6612.5625 1.7585952e+09 0.10756938 0.023900494 94.550922 42.365880 6615.1847 1.6701239e+09 0.10611271 0.023257215 94.660664 42.173837 6617.8069 1.5888562e+09 0.10517402 0.023706787 94.770419 41.981764 6620.4292 1.5136147e+09 0.10465792 0.024905498 94.877667 41.789683 6623.0514 1.4363863e+09 0.10334104 0.024510871 94.980569 41.597603 6625.6736 1.3621692e+09 0.10198186 0.026201458 95.089703 41.399290 6628.2959 1.2902303e+09 0.10028240 0.025823222 95.196374 41.203439 6630.9181 1.2219829e+09 0.098596151 0.025930564 95.299276 41.011356 6633.5403 1.1635344e+09 0.097069011 0.026246591 95.402172 40.819276 6636.1626 1.1041505e+09 0.095390299 0.026486619 95.505060 40.627217 6638.7848 1.0504434e+09 0.094154384 0.025637450 95.606808 40.437291 6641.4070 1.0027282e+09 0.094678948 0.025149683 95.695007 40.272652 6644.0293 9.6403448e+08 0.093505004 0.025346770 95.786158 40.097682 6646.6515 9.2776109e+08 0.092110364 0.026257388 95.882198 39.905602 6649.2737 8.8882144e+08 0.090598419 0.027256352 95.978238 39.713521 6651.8960 8.4631789e+08 0.089916306 0.027170799 96.077442 39.521441 6654.5182 8.0267047e+08 0.088741434 0.027815465 96.180306 39.329361 6657.1404 7.6233440e+08 0.086308672 0.029064016 96.276361 39.137279 6659.7627 7.1968897e+08 0.084405511 0.031675504 96.372401 38.945197 6662.3849 6.7670079e+08 0.082508072 0.032828317 96.467836 38.753120 6665.0071 6.4057455e+08 0.081340821 0.028535434 96.556998 38.561077 6667.6294 6.1190352e+08 0.080361342 0.027334637 96.641851 38.386297 6670.2516 5.9067362e+08 0.079357401 0.027212068 96.724173 38.221659 6672.8738 5.7114297e+08 0.078859118 0.027386092 96.819242 38.031522 6675.4961 5.4402285e+08 0.076889161 0.030748517 96.912047 37.839442 6678.1183 5.1678546e+08 0.075455354 0.030857486 97.001225 37.647362 6680.7405 4.9121594e+08 0.076094080 0.029601330 97.090404 37.455280 6683.3628 4.6939148e+08 0.076826334 0.031720227 97.179585 37.263198 6685.9850 4.4894470e+08 0.076342869 0.033745246 97.268769 37.071118 6688.6072 4.2739649e+08 0.073177087 0.033925362 97.357948 36.879036 6691.2295 4.0958914e+08 0.071657172 0.032947123 97.438964 36.704535 6693.8517 3.9276976e+08 0.070448610 0.031311901 97.515401 36.539898 6696.4739 3.7808937e+08 0.070072755 0.029872697 97.603801 36.349504 6699.0962 3.6356068e+08 0.068542827 0.031501693 97.689667 36.157443 6701.7184 3.4647886e+08 0.066413964 0.032463550 97.772150 35.965363 6704.3406 3.2966754e+08 0.066578557 0.036344825 97.861334 35.773281 6706.9629 3.0979405e+08 0.066286942 0.040122207 97.946628 35.581199 6709.5851 2.9287583e+08 0.065306319 0.040760388 98.028306 35.392103 6712.2073 2.7875436e+08 0.062759409 0.042214917 98.104748 35.227466 6714.8296 2.6853744e+08 0.060206025 0.047365776 98.183587 35.054431 6717.4518 2.5897570e+08 0.057582367 0.049846322 98.265904 34.869210 6720.0740 2.4681560e+08 0.055848243 0.050411188 98.348226 34.677471 6722.6963 2.3124071e+08 0.055245510 0.049744431 98.430540 34.485408 6725.3185 2.1498722e+08 0.050525434 0.041377065 98.512609 34.293363 6727.9407 2.0293244e+08 0.049179398 0.039707053 98.588070 34.101283 6730.5630 1.9474608e+08 0.047426205 0.041150805 98.667486 33.909203 6733.1852 1.8997617e+08 0.045835373 0.044929837 98.748403 33.720391 6735.8074 1.8261743e+08 0.046754933 0.050150587 98.818963 33.555752 6738.4297 1.7768478e+08 0.048144608 0.059686630 98.891574 33.382502 6741.0519 1.7306669e+08 0.047035484 0.065906726 98.967034 33.197281 6743.6741 1.6768475e+08 0.042019405 0.075595157 99.049082 33.005470 6746.2964 1.6097550e+08 0.038919489 0.075541629 99.127951 32.813390 6748.9186 1.5167250e+08 0.035972222 0.071849710 99.203411 32.621622 6751.5408 1.4286751e+08 0.031713596 0.073940340 99.278856 32.436438 6754.1631 1.3723545e+08 0.029359078 0.075951232 99.354311 32.247204 6756.7853 1.3341947e+08 0.026093802 0.076187614 99.429772 32.055123 6759.4075 1.2921979e+08 0.026840727 0.075918300 99.505233 31.863039 6762.0298 1.2468660e+08 0.030523632 0.078002821 99.580694 31.670958 6764.6520 1.1989142e+08 0.033887331 0.079514521 99.656155 31.480346 6767.2742 1.1389727e+08 0.033433316 0.081668690 99.731616 31.295125 6769.8965 1.1049711e+08 0.027712983 0.086628598 99.798921 31.125473 6772.5187 1.0685023e+08 0.022866641 0.092988666 99.863818 30.959691 6775.1409 1.0210691e+08 0.018009478 0.099348735 99.932418 30.774472 6777.7632 1.0069611e+08 0.013248928 0.10570880 100.00511 30.585171 6780.3854 97460853. 0.0084577423 0.11206887 100.07960 30.393121 6783.0076 93001323. 0.0036531348 0.11842894 100.14820 30.201040 6785.6299 90937480. -0.0010346053 0.12478901 100.22148 30.013639 6788.2521 86797505. -0.0057415554 0.13114908 100.29540 29.826879 6790.8743 82531899. -0.010405261 0.13750915 100.36400 29.634798 6793.4966 79754395. -0.014974658 0.14386922 100.43260 29.447977 6796.1188 76446509. -0.019552419 0.15022928 100.50120 29.260636 6798.7410 74138980. -0.024066524 0.15658935 100.56980 29.068556 6801.3633 70373218. -0.028631021 0.16294942 100.63839 28.882346 6803.9855 66012930. -0.033216220 0.16930949 100.70698 28.694448 6806.6077 63788767. -0.037685756 0.17566956 100.77558 28.502366 6809.2300 61648011. -0.042139770 0.18202963 100.85702 28.282035 6811.8522 57917387. -0.046672911 0.18838970 100.92945 28.081528 6814.4744 56271474. -0.051101319 0.19474977 100.99806 27.891253 6817.0967 53672957. -0.055590777 0.20110983 101.06666 27.706032 6819.7189 52405485. -0.060022714 0.20746990 101.13525 27.520840 6822.3411 50984837. -0.064495817 0.21382997 101.20145 27.333260 6824.9634 47816532. -0.069116680 0.22019004 101.26319 27.141180 6827.5856 49668664. -0.073511272 0.22655011 101.33104 26.955201 6830.2078 50076751. -0.078070805 0.23291018 101.39668 26.769979 6832.8301 47178666. -0.082925695 0.23927025 101.45841 26.584758 6835.4523 42374333. -0.088120694 0.24563031 101.54021 26.355414 6838.0745 41210170. -0.093304852 0.25199038 101.60689 26.159335 6840.6968 40776943. -0.098750281 0.25835045 101.66862 25.974141 6843.3190 41964936. -0.10447507 0.26471052 101.73036 25.788920 6845.9412 41042407. -0.11144671 0.27107059 101.79789 25.603698 6848.5635 36211756. -0.12277365 0.27743066 101.86861 25.400990 6851.1857 36892203. -0.15729114 0.28379073 101.94058 25.178247 6853.8079 38251157. -0.13693673 0.29015080 102.00232 24.993025 6856.4302 41365463. -0.092464571 0.29651086 102.07287 24.781396