# # 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 = 43.342571 km # Date (UTC) = 2014-01-16T09:50:14.740 # Date (julian) = 2456673.90989282 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.6217 6.1250844e+10 0.057565999 0.033375310 -26.546578 51.909842 6505.4304 5.7126497e+10 0.065165827 0.033920739 -26.657279 51.805583 6507.2392 5.3227463e+10 0.072999675 0.034466168 -26.766787 51.700131 6509.0480 4.9632996e+10 0.081059611 0.035011597 -26.876295 51.594679 6510.8567 4.6537593e+10 0.089471601 0.035557027 -26.985802 51.489228 6512.6655 4.3683577e+10 0.098205890 0.036102456 -27.095309 51.383777 6514.4743 4.1036621e+10 0.10726748 0.036647885 -27.201675 51.281467 6516.2830 3.8368237e+10 0.11654616 0.037193314 -27.307126 51.180072 6518.0918 3.5783489e+10 0.12605582 0.037738744 -27.412577 51.077423 6519.9006 3.3315296e+10 0.13578590 0.038284173 -27.518028 50.971970 6521.7093 3.1001955e+10 0.14574681 0.038829602 -27.623480 50.866518 6523.5181 2.8992112e+10 0.15165935 0.039307524 -27.717813 50.772185 6525.3269 2.7354356e+10 0.15727012 0.039744909 -27.810081 50.679918 6527.1356 2.6016708e+10 0.16230625 0.040814947 -27.902582 50.587418 6528.9444 2.4622557e+10 0.16542248 0.042191685 -28.003977 50.486022 6530.7532 2.3063626e+10 0.16884198 0.044883133 -28.105373 50.384627 6532.5619 2.1409521e+10 0.17246232 0.047153639 -28.206769 50.280961 6534.3707 1.9724167e+10 0.17377707 0.048048260 -28.308164 50.175510 6536.1795 1.8219007e+10 0.17343891 0.047951089 -28.408365 50.071302 6537.9883 1.6944411e+10 0.17448227 0.049151142 -28.497084 49.979033 6539.7970 1.5922358e+10 0.17420616 0.050608399 -28.585803 49.886764 6541.6058 1.5084637e+10 0.17208475 0.051130077 -28.676906 49.790852 6543.4146 1.4212567e+10 0.17042528 0.051490695 -28.774245 49.685401 6545.2233 1.3324899e+10 0.16924446 0.052457568 -28.871585 49.579950 6547.0321 1.2429179e+10 0.16785715 0.053299569 -28.968924 49.474499 6548.8409 1.1572886e+10 0.16598891 0.053918756 -29.066264 49.369046 6550.6496 1.0814082e+10 0.16503409 0.055148021 -29.159403 49.268146 6552.4584 1.0192338e+10 0.16418150 0.055471388 -29.244574 49.175878 6554.2672 9.6980179e+09 0.16243408 0.054837987 -29.329745 49.083611 6556.0759 9.2492029e+09 0.16068792 0.054001962 -29.419194 48.984390 6557.8847 8.7670589e+09 0.15955590 0.053311574 -29.512478 48.878938 6559.6935 8.2438578e+09 0.15769073 0.052308908 -29.605762 48.773486 6561.5022 7.7174540e+09 0.15545882 0.051125189 -29.699046 48.668035 6563.3110 7.2287909e+09 0.15353661 0.049568604 -29.792330 48.562584 6565.1198 6.8041169e+09 0.15192786 0.048182391 -29.878661 48.464992 6566.9285 6.4584986e+09 0.15011663 0.046657610 -29.960282 48.372723 6568.7373 6.1683679e+09 0.14822325 0.045093898 -30.041904 48.280455 6570.5461 5.8767468e+09 0.14687044 0.044691304 -30.132602 48.181083 6572.3548 5.5533175e+09 0.14520600 0.044026943 -30.225887 48.079687 6574.1636 5.2389109e+09 0.14275713 0.042776421 -30.314415 47.981146 6575.9724 4.9660358e+09 0.14047245 0.041399101 -30.392487 47.888878 6577.7812 4.7532931e+09 0.13831244 0.038993371 -30.470560 47.796611 6579.5899 4.5615900e+09 0.13597782 0.036746192 -30.554153 47.697820 6581.3987 4.3570406e+09 0.13405186 0.035475880 -30.643381 47.592369 6583.2075 4.1375334e+09 0.13267864 0.034916661 -30.732608 47.486800 6585.0162 3.9086192e+09 0.13130258 0.033957801 -30.821837 47.377292 6586.8250 3.6896304e+09 0.12971873 0.033160632 -30.911066 47.267784 6588.6338 3.4905907e+09 0.12830680 0.033168284 -30.992006 47.167994 6590.4425 3.3228695e+09 0.12648538 0.030238891 -31.066530 47.075725 6592.2513 3.1835285e+09 0.12444412 0.027829439 -31.141054 46.983456 6594.0601 3.0455571e+09 0.12229222 0.026139550 -31.226544 46.881357 6595.8688 2.8989354e+09 0.11989259 0.025713672 -31.315771 46.775906 6597.6776 2.7437409e+09 0.11818222 0.025508901 -31.399888 46.674145 6599.4864 2.6101094e+09 0.11689321 0.024958983 -31.470875 46.581862 6601.2951 2.4993850e+09 0.11641917 0.027184684 -31.541861 46.489579 6603.1039 2.3931129e+09 0.11514742 0.026601760 -31.619412 46.391203 6604.9127 2.2842284e+09 0.11415441 0.026613193 -31.704584 46.285753 6606.7214 2.1614621e+09 0.11292591 0.026207550 -31.789757 46.180302 6608.5302 2.0558933e+09 0.11020169 0.023718353 -31.864311 46.087996 6610.3390 1.9700426e+09 0.10728351 0.024326868 -31.938835 45.995727 6612.1477 1.8944723e+09 0.10496416 0.024210359 -32.014541 45.901095 6613.9565 1.8128793e+09 0.10356699 0.023924539 -32.095658 45.795644 6615.7653 1.7235122e+09 0.10186261 0.023275077 -32.176775 45.690193 6617.5741 1.6328699e+09 0.10095410 0.023629575 -32.250654 45.594151 6619.3828 1.5596507e+09 0.10024373 0.024618283 -32.321630 45.501884 6621.1916 1.4972239e+09 0.099524115 0.025025943 -32.392605 45.409617 6623.0004 1.4307785e+09 0.098451243 0.024491959 -32.469031 45.305538 6624.8091 1.3661961e+09 0.097322567 0.025295431 -32.546092 45.200086 6626.6179 1.2960901e+09 0.095936472 0.025803647 -32.620534 45.100305 6628.4267 1.2357046e+09 0.094960896 0.025876325 -32.691510 45.008038 6630.2354 1.1877939e+09 0.093774434 0.025928882 -32.762485 44.915771 6632.0442 1.1421189e+09 0.092296912 0.026037645 -32.837187 44.815430 6633.8530 1.0888645e+09 0.091098103 0.026301172 -32.914247 44.709978 6635.6617 1.0291023e+09 0.089999860 0.026499025 -32.989893 44.606460 6637.4705 9.7748038e+08 0.089008908 0.025930973 -33.057319 44.514193 6639.2793 9.3885290e+08 0.088194760 0.025528256 -33.124745 44.421926 6641.0880 9.1044771e+08 0.088504460 0.025148599 -33.195340 44.325322 6642.8968 8.7922540e+08 0.087958405 0.025188396 -33.272402 44.219869 6644.7056 8.3913267e+08 0.086922682 0.025419864 -33.349464 44.114416 6646.5143 7.9703192e+08 0.085819566 0.026186390 -33.426525 44.005465 6648.3231 7.5225598e+08 0.084861600 0.027180578 -33.503585 43.895959 6650.1319 7.1110203e+08 0.084244013 0.026285429 -33.575402 43.793308 6651.9407 6.7798752e+08 0.083549641 0.027205039 -33.639280 43.701039 6653.7494 6.5090700e+08 0.082762385 0.027908288 -33.703158 43.608771 6655.5582 6.2861099e+08 0.081138444 0.027840860 -33.772328 43.508859 6657.3670 6.0183385e+08 0.079567637 0.029326768 -33.845333 43.403409 6659.1757 5.6883966e+08 0.078288305 0.031797942 -33.917295 43.299463 6660.9845 5.3931066e+08 0.077327660 0.032520854 -33.981174 43.207194 6662.7933 5.1360896e+08 0.076493757 0.032599206 -34.045052 43.114925 6664.6020 4.9710743e+08 0.075725565 0.030003290 -34.111635 43.018749 6666.4108 4.7609802e+08 0.075670174 0.026988644 -34.184640 42.913299 6668.2196 4.5373130e+08 0.075006359 0.027665075 -34.257645 42.807848 6670.0283 4.3508515e+08 0.074636476 0.027315506 -34.323067 42.713349 6671.8371 4.1727889e+08 0.074382148 0.026877278 -34.386945 42.621080 6673.6459 4.0340944e+08 0.073723225 0.028425164 -34.450888 42.528641 6675.4546 3.8716396e+08 0.072001977 0.030669156 -34.519836 42.423191 6677.2634 3.7040554e+08 0.070383447 0.031983758 -34.588785 42.317740 6679.0722 3.5690816e+08 0.069699111 0.030208129 -34.654958 42.219504 6680.8809 3.4552983e+08 0.070435480 0.029631649 -34.718836 42.127235 6682.6897 3.3360579e+08 0.070749560 0.030951509 -34.782714 42.034966 6684.4985 3.2459775e+08 0.070427922 0.032679388 -34.850291 41.933082 6686.3072 3.1187195e+08 0.069353452 0.033939846 -34.919242 41.827631 6688.1160 2.9668706e+08 0.067009362 0.033811971 -34.987121 41.722180 6689.9248 2.8344427e+08 0.065077795 0.033183570 -35.052014 41.616729 6691.7336 2.7251872e+08 0.063833586 0.032828193 -35.116907 41.511279 6693.5423 2.6253209e+08 0.062725203 0.031418039 -35.178157 41.416350 6695.3511 2.5606790e+08 0.062069003 0.029794983 -35.238485 41.324082 6697.1599 2.4726219e+08 0.061193975 0.030111495 -35.298816 41.231808 6698.9686 2.3731009e+08 0.059762644 0.031547367 -35.367594 41.122644 6700.7774 2.2767287e+08 0.057994037 0.031244333 -35.436544 41.013137 6702.5862 2.1421936e+08 0.057086045 0.033344783 -35.499229 40.912504 6704.3949 2.0701010e+08 0.056988683 0.036371485 -35.556009 40.820237 6706.2037 2.0022784e+08 0.056593020 0.038800926 -35.612790 40.727969 6708.0125 1.9399694e+08 0.056027922 0.040057154 -35.675224 40.626513 6709.8212 1.8625487e+08 0.054736733 0.040610198 -35.740117 40.521061 6711.6300 1.7751444e+08 0.052645616 0.041409004 -35.805011 40.415608 6713.4388 1.6879974e+08 0.050580093 0.045273567 -35.869904 40.310158 6715.2475 1.6439398e+08 0.048748811 0.047631765 -35.934797 40.204707 6717.0563 1.6612669e+08 0.046884419 0.049870786 -35.993478 40.109350 6718.8651 1.4688171e+08 0.044244617 0.051159705 -36.050258 40.017081 6720.6738 1.3309612e+08 0.043902827 0.050341690 -36.107038 39.924812 6722.4826 1.2144273e+08 0.042858204 0.050008569 -36.171508 39.820050 6724.2914 1.1796855e+08 0.040260382 0.047493441 -36.236401 39.714599 6726.1001 1.2575394e+08 0.037764485 0.040952271 -36.299338 39.609148 6727.9089 1.1878809e+08 0.036916288 0.039749447 -36.360174 39.503698 6729.7177 1.1463818e+08 0.035851055 0.040567071 -36.420943 39.398466 6731.5265 1.0868585e+08 0.034210428 0.042797766 -36.477725 39.306197 6733.3352 1.0723084e+08 0.033447617 0.045744327 -36.534507 39.213928 6735.1440 1.0414546e+08 0.033907446 0.049446289 -36.592095 39.119039 6736.9528 99217246. 0.035250964 0.053956967 -36.652931 39.013588 6738.7615 98448055. 0.036187017 0.061513649 -36.713767 38.908137 6740.5703 92604832. 0.035351849 0.065024614 -36.774605 38.802686 6742.3791 87159949. 0.032834819 0.069534411 -36.835443 38.697233 6744.1878 83721706. 0.028899557 0.077938695 -36.896280 38.591782 6745.9966 77043489. 0.027623482 0.078985849 -36.957117 38.486331 6747.8054 73464929. 0.023147472 0.067083904 -37.017953 38.380880 6749.6141 71748095. 0.021205576 0.072109782 -37.072697 38.285990 6751.4229 69469246. 0.018147323 0.073890478 -37.125937 38.193708 6753.2317 69057812. 0.015299516 0.073727027 -37.179180 38.101416 6755.0404 67922033. 0.011727660 0.074587615 -37.235894 37.996196 6756.8492 64737070. 0.0051028076 0.076352051 -37.292666 37.890762 6758.6580 59157343. -0.0049378936 0.075096704 -37.351546 37.785320 6760.4667 57554797. -0.060587879 0.076951335 -37.412384 37.679869 6762.2755 54565503. -0.012641093 0.077606417 -37.473008 37.574419 6764.0843 54732120. 0.092227908 0.079487323 -37.529789 37.468966