# # 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 = 64.429119 km # Date (UTC) = 2014-11-19T10:32:34.734 # Date (julian) = 2456980.93929090 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6499.5006 7.1402490e+10 0.046406710 0.032132610 97.237643 29.954032 6502.0744 6.2403687e+10 0.055422023 0.032908752 97.306899 29.786662 6504.6483 5.5151926e+10 0.064511972 0.033684893 97.376153 29.619291 6507.2222 4.8945982e+10 0.073766955 0.034461035 97.445411 29.451920 6509.7960 4.4138375e+10 0.083436226 0.035237177 97.512836 29.288981 6512.3699 4.0202772e+10 0.093640341 0.036013319 97.573436 29.142535 6514.9438 3.7060976e+10 0.10458057 0.036789461 97.634704 28.991243 6517.5176 3.4128958e+10 0.11619903 0.037565603 97.698190 28.823872 6520.0915 3.1094538e+10 0.12836546 0.038341745 97.764553 28.656501 6522.6654 2.8161159e+10 0.13931758 0.039091482 97.833807 28.489131 6525.2392 2.5280459e+10 0.14552695 0.039754913 97.898642 28.321760 6527.8131 2.2770408e+10 0.15038859 0.041306778 97.961861 28.155090 6530.3869 2.0699117e+10 0.15495791 0.044370414 98.017410 28.008644 6532.9608 1.8997463e+10 0.15935314 0.047486848 98.073690 27.861083 6535.5347 1.7514294e+10 0.16152387 0.047992357 98.142948 27.693712 6538.1085 1.5928295e+10 0.16418603 0.049209533 98.210356 27.526341 6540.6824 1.4370252e+10 0.16576298 0.051176487 98.273842 27.358970 6543.2563 1.3079150e+10 0.16630562 0.051449152 98.332662 27.203901 6545.8301 1.2046040e+10 0.16583029 0.052463004 98.388210 27.057455 6548.4040 1.1155305e+10 0.16519182 0.053788292 98.448580 26.901800 6550.9779 1.0309933e+10 0.16331129 0.055230207 98.512061 26.740200 6553.5517 9.5418937e+09 0.16149693 0.055057724 98.564192 26.591841 6556.1256 8.8870034e+09 0.15902923 0.053994662 98.614702 26.445373 6558.6995 8.3067764e+09 0.15677825 0.052643287 98.676816 26.280221 6561.2733 7.7112930e+09 0.15401626 0.051237998 98.740292 26.112874 6563.8472 7.0853106e+09 0.15145711 0.048948377 98.803773 25.945503 6566.4210 6.5361235e+09 0.14964506 0.046944702 98.861685 25.789276 6568.9949 6.0850327e+09 0.14807361 0.044857106 98.912194 25.647859 6571.5688 5.6740441e+09 0.14718209 0.044347933 98.968536 25.494777 6574.1426 5.2962108e+09 0.14531927 0.042786499 99.032021 25.327407 6576.7165 4.9540794e+09 0.14360053 0.040546688 99.086198 25.175033 6579.2904 4.6426332e+09 0.14112945 0.036910872 99.136696 25.028586 6581.8642 4.3625757e+09 0.13921976 0.035334909 99.196760 24.870979 6584.4381 4.0891672e+09 0.13731493 0.034276866 99.260196 24.709438 6587.0120 3.8463965e+09 0.13546997 0.033161018 99.310694 24.562991 6589.5858 3.6299343e+09 0.13335829 0.031883766 99.361362 24.416188 6592.1597 3.4239243e+09 0.13056546 0.027918426 99.419075 24.254588 6594.7335 3.2260881e+09 0.12773273 0.025769841 99.474689 24.097397 6597.3074 3.0424953e+09 0.12454382 0.025625720 99.525187 23.950951 6599.8813 2.8887269e+09 0.12270950 0.024982734 99.579720 23.799798 6602.4551 2.7374238e+09 0.12148941 0.027128236 99.643206 23.638198 6605.0290 2.5862423e+09 0.12027403 0.026689374 99.699185 23.485356 6607.6029 2.4509419e+09 0.11860313 0.024516559 99.749683 23.338911 6610.1767 2.3317328e+09 0.11561391 0.024171841 99.801046 23.183407 6612.7506 2.2172763e+09 0.11401634 0.023759936 99.852991 23.021807 6615.3245 2.1046340e+09 0.11306909 0.023261514 99.903684 22.877684 6617.8983 2.0047091e+09 0.11238166 0.023737086 99.954182 22.736287 6620.4722 1.9103907e+09 0.11187567 0.024919360 100.01106 22.571909 6623.0461 1.8178757e+09 0.11054762 0.024508887 100.06768 22.408490 6625.6199 1.7299958e+09 0.10917067 0.026137349 100.11818 22.267093 6628.1938 1.6477658e+09 0.10739578 0.025781771 100.16992 22.122223 6630.7676 1.5692236e+09 0.10568841 0.025930193 100.22764 21.960625 6633.3415 1.4937720e+09 0.10411983 0.026211877 100.27996 21.805681 6635.9154 1.4236116e+09 0.10228613 0.026537061 100.32541 21.659234 6638.4892 1.3556334e+09 0.10097816 0.025650328 100.37649 21.505833 6641.0631 1.2899218e+09 0.10124572 0.025148515 100.43420 21.344232 6643.6370 1.2278704e+09 0.10029447 0.025288792 100.48301 21.197306 6646.2108 1.1704033e+09 0.098830058 0.026029279 100.52846 21.055910 6648.7847 1.1200771e+09 0.097142972 0.027489560 100.58306 20.899442 6651.3586 1.0661335e+09 0.096319034 0.026758947 100.64061 20.738112 6653.9324 1.0142797e+09 0.095242063 0.028001722 100.68606 20.596715 6656.5063 9.7159320e+08 0.092679848 0.028467780 100.73172 20.454650 6659.0801 9.2771527e+08 0.090412382 0.031817880 100.78366 20.293051 6661.6540 8.8699000e+08 0.088595578 0.032868052 100.83517 20.137521 6664.2279 8.4472250e+08 0.087123705 0.031372299 100.88567 19.996124 6666.8017 8.0796270e+08 0.087101593 0.027064824 100.93663 19.848258 6669.3756 7.7487029e+08 0.086041707 0.027969931 100.98857 19.686660 6671.9495 7.3869063e+08 0.086077692 0.026878879 101.03671 19.536918 6674.5233 7.1020665e+08 0.084897841 0.029396256 101.08216 19.395500 6677.0972 6.8356254e+08 0.082380108 0.032220043 101.13156 19.241820 6679.6711 6.5685713e+08 0.082202742 0.029713237 101.18350 19.080221 6682.2449 6.2943932e+08 0.083121209 0.030611674 101.22976 18.936297 6684.8188 5.9824628e+08 0.083197613 0.032695642 101.27521 18.794901 6687.3927 5.7681212e+08 0.081031859 0.034123914 101.32647 18.635430 6689.9665 5.5630182e+08 0.078380042 0.033146004 101.37841 18.473829 6692.5404 5.3312156e+08 0.077107560 0.032137817 101.43035 18.312230 6695.1142 5.0890692e+08 0.076316145 0.029838488 101.47951 18.159303 6697.6881 4.8440279e+08 0.075456309 0.030178347 101.52496 18.017907 6700.2620 4.6357431e+08 0.073447379 0.030862031 101.57333 17.867439 6702.8358 4.4256483e+08 0.072254086 0.033544150 101.62527 17.705840 6705.4097 4.2309129e+08 0.072253716 0.037396971 101.67256 17.562330 6707.9836 4.0533249e+08 0.071699932 0.040045932 101.71801 17.425983 6710.5574 3.8934885e+08 0.069891047 0.040605605 101.76399 17.271048 6713.1313 3.7553892e+08 0.067249014 0.044161483 101.81015 17.109517 6715.7052 3.6156257e+08 0.064725552 0.048099803 101.85560 16.968121 6718.2790 3.4841849e+08 0.062047461 0.050246968 101.90120 16.826390 6720.8529 3.3478622e+08 0.061548491 0.050320945 101.95315 16.670562 6723.4267 3.1893744e+08 0.060262986 0.049606949 102.00341 16.513057 6726.0006 3.0319995e+08 0.056001454 0.040951373 102.04958 16.351459 6728.5745 2.9163868e+08 0.055270450 0.040442322 102.09535 16.201129 6731.1483 2.7991328e+08 0.053417368 0.042045251 102.14080 16.059732 6733.7222 2.6893756e+08 0.052046046 0.047845370 102.18667 15.910000 6736.2961 2.5994501e+08 0.053747371 0.051474314 102.23284 15.754171 6738.8699 2.4889578e+08 0.054949465 0.062110475 102.28389 15.593467 6741.4438 2.3988944e+08 0.053360294 0.067024427 102.33518 15.432515 6744.0177 2.2837309e+08 0.048170574 0.077807073 102.38135 15.276688 6746.5915 2.2003489e+08 0.044703080 0.072110133 102.42725 15.126337 6749.1654 2.1355377e+08 0.042669960 0.072232649 102.47270 14.984940 6751.7393 2.0912598e+08 0.038372841 0.074024231 102.51844 14.837782 6754.3131 2.0313752e+08 0.036405614 0.075709939 102.56461 14.681954 6756.8870 1.9210298e+08 0.033326393 0.076449243 102.61078 14.522279 6759.4608 1.8193738e+08 0.034371442 0.075931164 102.65695 14.360679 6762.0347 1.7146562e+08 0.038220989 0.077994855 102.70312 14.204469 6764.6086 1.6504315e+08 0.041609029 0.079512441 102.74914 14.052561 6767.1824 1.5948111e+08 0.041446849 0.081771483 102.79460 13.916215 6769.7563 1.5444325e+08 0.035787039 0.086288625 102.84021 13.774288 6772.3302 1.4972513e+08 0.031007504 0.092531377 102.88638 13.612689 6774.9040 1.4258763e+08 0.026323122 0.098774129 102.93255 13.453908 6777.4779 1.3574452e+08 0.021671770 0.10501688 102.97872 13.298080 6780.0518 1.2961466e+08 0.017031964 0.11125963 103.02489 13.142251 6782.6256 1.2467362e+08 0.012367313 0.11750238 103.07106 12.986422 6785.1995 1.2485967e+08 0.0075399090 0.12374514 103.11723 12.830595 6787.7734 1.2079801e+08 0.0028054633 0.12998789 103.16340 12.673091 6790.3472 1.1618411e+08 -0.0019419767 0.13623064 103.20958 12.511492 6792.9211 1.1013818e+08 -0.0066804333 0.14247339 103.25575 12.353111 6795.4949 1.0445422e+08 -0.011462399 0.14871614 103.30191 12.197283 6798.0688 1.0141003e+08 -0.016330381 0.15495890 103.34809 12.041455 6800.6427 95692915. -0.021180237 0.16120165 103.39426 11.885627 6803.2165 91055756. -0.026088502 0.16744440 103.44043 11.729798 6805.7904 87839715. -0.031059568 0.17368715 103.48660 11.573970 6808.3643 85774430. -0.036067419 0.17992990 103.53278 11.418142 6810.9381 85962404. -0.041097926 0.18617266 103.57894 11.262314 6813.5120 83649566. -0.046143913 0.19241541 103.62511 11.106486 6816.0859 80151308. -0.051232797 0.19865816 103.67128 10.950658 6818.6597 78173153. -0.056323825 0.20490091 103.71746 10.794830 6821.2336 75857901. -0.061445078 0.21114366 103.76363 10.639003 6823.8074 75277977. -0.066514741 0.21738642 103.80733 10.483175 6826.3813 72117973. -0.071704551 0.22362917 103.84773 10.327347 6828.9552 69274016. -0.076915255 0.22987192 103.89750 10.153435 6831.5290 66516927. -0.082145969 0.23611467 103.94974 9.9771174 6834.1029 60737429. -0.087693053 0.24235742 103.99590 9.8213159 6836.6768 57930835. -0.093045499 0.24860018 104.04207 9.6655020 6839.2506 54399179. -0.098590819 0.25484293 104.08824 9.5096744 6841.8245 53106503. -0.10392373 0.26108568 104.13011 9.3581486 6844.3984 52654255. -0.10921981 0.26732843 104.17068 9.2076883 6846.9722 48701594. -0.11547442 0.27357118 104.22455 9.0258837 6849.5461 43893343. -0.12264667 0.27981393 104.27436 8.8577840 6852.1200 40659140. -0.13051562 0.28605669 104.32053 8.7019554 6854.6938 44116180. -0.13705921 0.29229944 104.36212 8.5461272 6857.2677 47184758. -0.14753158 0.29854219 104.40335 8.3891012 6859.8415 51340810. -0.18985585 0.30478494 104.45722 8.2140309 6862.4154 51273251. -0.15863764 0.31102769 104.50332 8.0500660 6864.9893 46045025. -0.086997495 0.31727045 104.54372 7.8942379