# # 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 = 54.604562 km # Date (UTC) = 2011-12-11T09:18:29.598 # Date (julian) = 2455906.88784256 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6505.9953 1.2042884e+11 0.072221425 0.034091083 -24.090410 47.794156 6508.0424 1.0576339e+11 0.080941367 0.034708367 -24.176090 47.704907 6510.0894 9.3380504e+10 0.089829262 0.035325652 -24.264343 47.618231 6512.1365 8.3456108e+10 0.099031093 0.035942936 -24.353593 47.532551 6514.1835 7.4408084e+10 0.10844410 0.036560221 -24.442842 47.446871 6516.2306 6.6163639e+10 0.11806173 0.037177506 -24.534966 47.347645 6518.2777 5.8828267e+10 0.12790658 0.037794790 -24.627340 47.247238 6520.3247 5.2409176e+10 0.13799280 0.038412075 -24.716841 47.151622 6522.3718 4.7178384e+10 0.14742335 0.039014605 -24.802532 47.062361 6524.4188 4.2986155e+10 0.15270391 0.039575753 -24.888223 46.973100 6526.4659 3.9450472e+10 0.15686515 0.040156518 -24.971660 46.883846 6528.5129 3.6458467e+10 0.16097555 0.041849405 -25.053769 46.794597 6530.5600 3.3813703e+10 0.16454764 0.044612692 -25.135879 46.705347 6532.6071 3.1243278e+10 0.16798026 0.047191327 -25.226488 46.606859 6534.6541 2.8662664e+10 0.16951478 0.048127539 -25.318862 46.506452 6536.7012 2.6123650e+10 0.16990485 0.048417860 -25.407766 46.409818 6538.7482 2.3955369e+10 0.17052644 0.049521030 -25.489876 46.320569 6540.7953 2.2125583e+10 0.17069770 0.051229817 -25.571986 46.231319 6542.8423 2.0626025e+10 0.16999413 0.051322039 -25.654101 46.142063 6544.8894 1.9327928e+10 0.16913949 0.052365847 -25.736221 46.052802 6546.9365 1.8095920e+10 0.16743429 0.053235080 -25.818341 45.963541 6548.9835 1.6896464e+10 0.16521406 0.053961357 -25.905054 45.863117 6551.0306 1.5635297e+10 0.16378294 0.055246482 -25.993412 45.758694 6553.0776 1.4418833e+10 0.16280272 0.055296044 -26.079351 45.658010 6555.1247 1.3398569e+10 0.16133304 0.054748599 -26.157891 45.568761 6557.1717 1.2572851e+10 0.15956646 0.053758458 -26.236431 45.479511 6559.2188 1.1888555e+10 0.15729202 0.052362485 -26.313381 45.390262 6561.2659 1.1267108e+10 0.15501981 0.051241673 -26.388350 45.301012 6563.3129 1.0652784e+10 0.15306368 0.049566399 -26.463319 45.211763 6565.3600 1.0036553e+10 0.15127893 0.047909647 -26.546913 45.115326 6567.4070 9.3842649e+09 0.14985148 0.046273036 -26.635271 45.014919 6569.4541 8.7411796e+09 0.14847812 0.044881978 -26.721565 44.916232 6571.5011 8.1741717e+09 0.14727994 0.044366404 -26.796545 44.826970 6573.5482 7.6832815e+09 0.14553611 0.043217567 -26.871524 44.737709 6575.5953 7.2824517e+09 0.14362574 0.041777481 -26.946500 44.648452 6577.6423 6.9280243e+09 0.14136978 0.039211458 -27.021470 44.559203 6579.6894 6.6029184e+09 0.13872682 0.036691522 -27.096439 44.469953 6581.7364 6.2752487e+09 0.13623179 0.035373609 -27.176585 44.374541 6583.7835 5.9129245e+09 0.13382531 0.034625103 -27.260928 44.274134 6585.8305 5.5487099e+09 0.13135709 0.033306777 -27.344461 44.174424 6587.8776 5.2243125e+09 0.12941704 0.033352811 -27.415861 44.085174 6589.9247 4.9718425e+09 0.12710841 0.031211552 -27.487261 43.995925 6591.9717 4.7375288e+09 0.12467772 0.028105450 -27.562043 43.903759 6594.0188 4.4953031e+09 0.12268062 0.026162223 -27.646385 43.803352 6596.0658 4.2318922e+09 0.12042498 0.025726975 -27.730726 43.702945 6598.1129 3.9784360e+09 0.11903541 0.025353273 -27.805091 43.611137 6600.1599 3.7751122e+09 0.11862662 0.025318674 -27.876500 43.521876 6602.2070 3.5933736e+09 0.11815334 0.027339994 -27.947910 43.432614 6604.2540 3.4370965e+09 0.11686779 0.026222123 -28.015843 43.343365 6606.3011 3.2856196e+09 0.11635654 0.026962885 -28.083672 43.254115 6608.3482 3.1374689e+09 0.11393055 0.023723166 -28.153621 43.162974 6610.3952 2.9818477e+09 0.11110549 0.024380602 -28.233947 43.062567 6612.4423 2.8139298e+09 0.10941315 0.023990299 -28.314273 42.962159 6614.4893 2.6615683e+09 0.10835516 0.023603361 -28.388532 42.866909 6616.5364 2.5340705e+09 0.10679673 0.023366485 -28.459931 42.774089 6618.5834 2.4333419e+09 0.10587343 0.024211368 -28.531331 42.681269 6620.6305 2.3301470e+09 0.10484856 0.024970377 -28.607044 42.581783 6622.6776 2.2090843e+09 0.10330133 0.024577649 -28.683353 42.481376 6624.7246 2.0922761e+09 0.10154564 0.025250194 -28.756370 42.385301 6626.7717 1.9988965e+09 0.099344704 0.025607718 -28.824208 42.296040 6628.8187 1.9164007e+09 0.097708982 0.026035508 -28.892047 42.206779 6630.8658 1.8402077e+09 0.095576391 0.025930435 -28.964866 42.110964 6632.9128 1.7500825e+09 0.093881154 0.026141803 -29.041176 42.010557 6634.9599 1.6551351e+09 0.092282301 0.026396863 -29.116303 41.911245 6637.0070 1.5788609e+09 0.090723272 0.026158004 -29.180563 41.821995 6639.0540 1.5200269e+09 0.089739537 0.025608769 -29.244822 41.732746 6641.1011 1.4647327e+09 0.090465693 0.025148644 -29.312660 41.640183 6643.1481 1.4035238e+09 0.090082082 0.025214984 -29.388969 41.539776 6645.1952 1.3310634e+09 0.089272905 0.025543122 -29.465279 41.439368 6647.2422 1.2601951e+09 0.088295349 0.026565322 -29.531863 41.347966 6649.2893 1.2117542e+09 0.087224388 0.027234902 -29.596122 41.258717 6651.3364 1.1684950e+09 0.086772532 0.026741934 -29.660449 41.169375 6653.3834 1.1210193e+09 0.086269348 0.027721419 -29.732723 41.068994 6655.4305 1.0701414e+09 0.084844267 0.027788087 -29.805016 40.968587 6657.4775 1.0149387e+09 0.083215183 0.029455027 -29.873168 40.873932 6659.5246 9.7482856e+08 0.081672192 0.031725170 -29.937436 40.784671 6661.5716 9.4241362e+08 0.080134902 0.032826098 -30.001704 40.695410 6663.6187 9.0516680e+08 0.078736795 0.032311757 -30.068840 40.598176 6665.6658 8.6708070e+08 0.078434592 0.027456269 -30.137117 40.497768 6667.7128 8.2553332e+08 0.077706502 0.027365285 -30.204488 40.399876 6669.7599 7.8921374e+08 0.076795296 0.027575265 -30.268748 40.310627 6671.8069 7.6126108e+08 0.076375323 0.026876848 -30.333008 40.221378 6673.8540 7.3387374e+08 0.075417742 0.028736409 -30.398972 40.127394 6675.9010 7.0586971e+08 0.073056136 0.031524176 -30.467249 40.026987 6677.9481 6.7540406e+08 0.071814626 0.031010402 -30.535526 39.926580 6679.9952 6.4360053e+08 0.071854087 0.029445423 -30.603802 39.826173 6682.0422 6.1376096e+08 0.072535092 0.030456792 -30.672078 39.725765 6684.0893 5.8895387e+08 0.072781698 0.032658622 -30.736981 39.628732 6686.1363 5.6913090e+08 0.072214592 0.033840399 -30.797671 39.535913 6688.1834 5.5005029e+08 0.069876129 0.033827521 -30.858361 39.443094 6690.2304 5.3092589e+08 0.068258616 0.033089456 -30.923939 39.345382 6692.2775 5.1022477e+08 0.067361007 0.032443093 -30.992226 39.244960 6694.3245 4.8904954e+08 0.066618786 0.030806153 -31.060512 39.144540 6696.3716 4.6585831e+08 0.066486368 0.029830180 -31.128789 39.044133 6698.4187 4.4309105e+08 0.065619276 0.030792480 -31.197065 38.943726 6700.4657 4.2304987e+08 0.064064073 0.031013156 -31.257933 38.850729 6702.5128 4.1062455e+08 0.063069985 0.033286185 -31.315052 38.761480 6704.5598 4.0008434e+08 0.063279657 0.036452461 -31.372172 38.672231 6706.6069 3.8838048e+08 0.063029515 0.039502650 -31.438919 38.573353 6708.6539 3.7547009e+08 0.062531771 0.040755704 -31.507196 38.472945 6710.7010 3.6016360e+08 0.061067487 0.040633708 -31.573975 38.372538 6712.7481 3.4733400e+08 0.059111070 0.043218858 -31.638236 38.272130 6714.7951 3.3343014e+08 0.057153727 0.047363185 -31.702496 38.171723 6716.8422 3.1705857e+08 0.055261566 0.049641806 -31.766758 38.071316 6718.8892 3.0503595e+08 0.052973435 0.051197325 -31.831019 37.970909 6720.9363 2.9274946e+08 0.053268036 0.050311281 -31.895279 37.870501 6722.9833 2.8236574e+08 0.052299407 0.049389534 -31.959539 37.770094 6725.0304 2.7192676e+08 0.048149085 0.041557030 -32.023799 37.669687 6727.0775 2.5854528e+08 0.046675026 0.040857189 -32.084439 37.569267 6729.1245 2.4753390e+08 0.046417646 0.040962435 -32.144693 37.468845 6731.1716 2.4042351e+08 0.044759541 0.042091486 -32.203649 37.373048 6733.2186 2.3311628e+08 0.043727082 0.045111308 -32.260769 37.283798 6735.2657 2.2592809e+08 0.044233052 0.049575478 -32.317889 37.194549 6737.3127 2.1767763e+08 0.045783667 0.055131815 -32.376924 37.100922 6739.3598 2.0715229e+08 0.046242220 0.063266878 -32.437169 37.004530 6741.4069 2.0435466e+08 0.044760686 0.066919069 -32.497908 36.907645 6743.4539 1.9955479e+08 0.040828631 0.074109526 -32.562168 36.807238 6745.5010 1.9323587e+08 0.038687245 0.078777490 -32.626429 36.706831 6747.5480 1.8727259e+08 0.034350091 0.067172497 -32.688146 36.606423 6749.5951 1.7996668e+08 0.032876886 0.072114999 -32.748389 36.506016 6751.6421 1.7745332e+08 0.029988680 0.073983172 -32.808633 36.405609 6753.6892 1.7308564e+08 0.028355195 0.075207658 -32.868878 36.305202 6755.7363 1.6687593e+08 0.026165044 0.074282545 -32.929122 36.204795 6757.7833 1.6057420e+08 0.025064001 0.074362916 -32.994991 36.095013 6759.8304 1.5189102e+08 0.025763168 0.076020336 -33.063843 35.980259 6761.8774 1.4494158e+08 0.028952655 0.078040717 -33.128607 35.872318 6763.9245 1.3777865e+08 0.032168468 0.079253292 -33.188852 35.771911 6765.9715 1.3481418e+08 0.033880000 0.079708551 -33.249097 35.671503 6768.0186 1.2958435e+08 0.031059154 0.080922935 -33.305385 35.571096 6770.0657 1.2596653e+08 0.026683909 0.087038935 -33.361612 35.470689 6772.1127 1.2316864e+08 0.023034410 0.092003948 -33.419834 35.370275 6774.1598 1.1829314e+08 0.019394323 0.096968961 -33.480088 35.269853 6776.2068 1.1751557e+08 0.015806890 0.10193397 -33.540313 35.169431 6778.2539 1.1199567e+08 0.012175800 0.10689899 -33.596546 35.069024 6780.3009 1.1151067e+08 0.0086040101 0.11186400 -33.652774 34.968616 6782.3480 1.0851723e+08 0.0050107406 0.11682901 -33.713146 34.863177 6784.3950 1.0147980e+08 0.0013674696 0.12179402 -33.777408 34.753014 6786.4421 96599556. -0.0022491855 0.12675904 -33.840315 34.646141 6788.4892 91232017. -0.0058769376 0.13172405 -33.900560 34.545734 6790.5362 90182922. -0.0094287103 0.13668906 -33.960805 34.445327 6792.5833 90440741. -0.012958438 0.14165408 -34.017646 34.344920 6794.6303 90821502. -0.016490282 0.14661909 -34.073874 34.244513 6796.6774 87947635. -0.020083936 0.15158410 -34.131333 34.138977 6798.7244 83925025. -0.023712223 0.15654911 -34.191005 34.024224 6800.7715 77571595. -0.027416781 0.16151413 -34.250061 33.912037 6802.8186 73733006. -0.031096173 0.16647914 -34.306289 33.811629 6804.8656 69766007. -0.034818648 0.17144415 -34.362517 33.711221 6806.9127 65470904. -0.038618707 0.17640917 -34.424281 33.604091 6808.9597 63551527. -0.042413126 0.18137418 -34.488543 33.493927 6811.0068 61858739. -0.046310151 0.18633919 -34.548703 33.388744 6813.0538 61195739. -0.050322517 0.19130420 -34.604931 33.288337 6815.1009 61259496. -0.054563437 0.19626922 -34.661230 33.187634 6817.1480 58961000. -0.059525747 0.20123423 -34.720902 33.072880 6819.1950 55848872. -0.066328002 0.20619924 -34.780574 32.958127 6821.2421 52878286. -0.088392996 0.21116425 -34.833963 32.855453 6823.2891 49257100. -0.077941997 0.21612927 -34.886174 32.755046 6825.3362 51158082. -0.047752103 0.22109428 -34.942629 32.651204