# # 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 = 49.285007 km # Date (UTC) = 2013-11-19T09:46:58.089 # Date (julian) = 2456615.90761677 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6497.3150 7.0741586e+10 0.038093851 0.031473552 -18.704584 62.217372 6499.1812 6.5061943e+10 0.043482292 0.032036307 -18.897079 62.125309 6501.0474 6.0219214e+10 0.048905944 0.032599063 -19.089573 62.033247 6502.9137 5.6125485e+10 0.054480428 0.033161818 -19.282067 61.941186 6504.7799 5.2652506e+10 0.060321211 0.033724574 -19.471754 61.849124 6506.6461 5.0590440e+10 0.066789297 0.034287329 -19.655880 61.757060 6508.5123 4.7659461e+10 0.073476067 0.034850085 -19.840006 61.664997 6510.3786 4.5144936e+10 0.080759090 0.035412840 -20.024131 61.572934 6512.2448 4.3209768e+10 0.088812299 0.035975596 -20.208256 61.480871 6514.1110 4.1312912e+10 0.097529862 0.036538351 -20.392381 61.386482 6515.9772 3.9356148e+10 0.10688672 0.037101107 -20.576506 61.290234 6517.8435 3.7426611e+10 0.11692059 0.037663862 -20.755583 61.196598 6519.7097 3.5720440e+10 0.12773521 0.038226618 -20.909366 61.116046 6521.5759 3.4334109e+10 0.13933726 0.038789373 -21.063149 61.035494 6523.4422 3.2982099e+10 0.14737241 0.039288699 -21.226495 60.948111 6525.3084 3.1313475e+10 0.15463998 0.039747020 -21.402251 60.851862 6527.1746 2.9249719e+10 0.16099528 0.040843235 -21.578007 60.755614 6529.0408 2.6849370e+10 0.16545544 0.042300825 -21.753763 60.659366 6530.9071 2.4464638e+10 0.16951658 0.045098561 -21.929519 60.563119 6532.7733 2.2286387e+10 0.17336821 0.047330189 -22.099786 60.469617 6534.6395 2.0483284e+10 0.17406986 0.048123453 -22.267172 60.377556 6536.5057 1.8983211e+10 0.17272027 0.048242995 -22.434558 60.284380 6538.3720 1.7685132e+10 0.17228677 0.049337806 -22.601945 60.188133 6540.2382 1.6556314e+10 0.17175244 0.050966628 -22.769332 60.091886 6542.1044 1.5490703e+10 0.16973640 0.051041879 -22.936719 59.991970 6543.9706 1.4518309e+10 0.16790176 0.051636642 -23.104105 59.891538 6545.8369 1.3612103e+10 0.16642945 0.052463065 -23.257739 59.799001 6547.7031 1.2851353e+10 0.16578560 0.053554737 -23.396875 59.714786 6549.5693 1.2209347e+10 0.16464416 0.054546459 -23.536012 59.630572 6551.4355 1.1582360e+10 0.16342273 0.055388633 -23.690173 59.537264 6553.3018 1.0959003e+10 0.16236183 0.055183372 -23.849191 59.441017 6555.1680 1.0310792e+10 0.16126772 0.054712209 -24.008209 59.344770 6557.0342 9.6859865e+09 0.15979231 0.053844657 -24.167225 59.248523 6558.9004 9.1046095e+09 0.15770959 0.052472013 -24.326242 59.152276 6560.7667 8.5329861e+09 0.15580981 0.051583056 -24.481174 59.051942 6562.6329 7.9965402e+09 0.15415152 0.050277678 -24.636006 58.951510 6564.4991 7.5178326e+09 0.15209859 0.048545394 -24.777334 58.860592 6566.3654 7.1421697e+09 0.15017178 0.046976207 -24.909148 58.776378 6568.2316 6.8274431e+09 0.14863896 0.045558789 -25.040962 58.692163 6570.0978 6.5444210e+09 0.14711232 0.044876996 -25.188889 58.594073 6571.9640 6.2342121e+09 0.14525504 0.044239980 -25.339537 58.493641 6573.8303 5.8877095e+09 0.14303837 0.042991223 -25.488236 58.393209 6575.6965 5.5328742e+09 0.14143450 0.041675920 -25.634700 58.292778 6577.5627 5.1862011e+09 0.13991088 0.039336498 -25.779768 58.193582 6579.4289 4.8934942e+09 0.13795905 0.036834695 -25.907920 58.109368 6581.2952 4.6489362e+09 0.13623372 0.035507231 -26.036073 58.025154 6583.1614 4.4472073e+09 0.13488716 0.034939981 -26.169100 57.935343 6585.0276 4.2433669e+09 0.13345000 0.033948700 -26.311377 57.834910 6586.8938 4.0243139e+09 0.13187578 0.033159742 -26.453655 57.734478 6588.7601 3.7977254e+09 0.13046644 0.033126106 -26.591936 57.634047 6590.6263 3.5744944e+09 0.12872264 0.029897074 -26.730031 57.533615 6592.4925 3.3802161e+09 0.12693567 0.027595146 -26.858358 57.440287 6594.3587 3.2254605e+09 0.12485627 0.025975593 -26.979188 57.352410 6596.2250 3.1049488e+09 0.12226323 0.025726251 -27.100017 57.264534 6598.0912 2.9888164e+09 0.12045362 0.025363627 -27.235256 57.166177 6599.9574 2.8627265e+09 0.11959238 0.024987314 -27.373350 57.065745 6601.8236 2.7221688e+09 0.11890818 0.027433579 -27.509582 56.965313 6603.6899 2.5752667e+09 0.11745762 0.026254873 -27.643491 56.864882 6605.5561 2.4418679e+09 0.11684763 0.027131563 -27.776273 56.765145 6607.4223 2.3250033e+09 0.11499893 0.024873070 -27.889779 56.677268 6609.2885 2.2378181e+09 0.11178258 0.023791643 -28.003286 56.589391 6611.1548 2.1568181e+09 0.10861165 0.024859757 -28.123405 56.496088 6613.0210 2.0748869e+09 0.10728361 0.023581295 -28.257314 56.391472 6614.8872 1.9861856e+09 0.10594675 0.023329229 -28.391223 56.286855 6616.7535 1.8863931e+09 0.10469324 0.023400553 -28.517312 56.186150 6618.6197 1.7867506e+09 0.10440194 0.024238725 -28.642852 56.085719 6620.4859 1.6902860e+09 0.10409247 0.024923779 -28.759842 55.992128 6622.3521 1.6176914e+09 0.10309752 0.024664268 -28.869687 55.904251 6624.2184 1.5626399e+09 0.10151959 0.024979194 -28.979532 55.816374 6626.0846 1.5114913e+09 0.10050084 0.026483141 -29.102147 55.718282 6627.9508 1.4558800e+09 0.099012839 0.025684092 -29.227686 55.617851 6629.8170 1.3870194e+09 0.097931656 0.025961383 -29.353226 55.515646 6631.6833 1.3174373e+09 0.096447478 0.026000171 -29.478766 55.411030 6633.5495 1.2497521e+09 0.095330897 0.026248187 -29.603517 55.306987 6635.4157 1.1971278e+09 0.094044437 0.026462130 -29.706038 55.219111 6637.2819 1.1629643e+09 0.092657860 0.026023328 -29.808560 55.131234 6639.1482 1.1307566e+09 0.091543290 0.025575119 -29.916791 55.038282 6641.0144 1.0938791e+09 0.091906786 0.025148349 -30.038148 54.933665 6642.8806 1.0462043e+09 0.091397040 0.025187733 -30.159504 54.829048 6644.7468 9.9404065e+08 0.090351817 0.025424323 -30.277037 54.728255 6646.6131 9.4650125e+08 0.089161617 0.026237490 -30.394207 54.627824 6648.4793 9.0188153e+08 0.088013874 0.027285124 -30.503712 54.532045 6650.3455 8.6649509e+08 0.087268664 0.026334336 -30.606249 54.440494 6652.2117 8.4010921e+08 0.086420726 0.027308780 -30.708786 54.348942 6654.0780 8.1367593e+08 0.085387112 0.028003010 -30.819610 54.247029 6655.9442 7.8455321e+08 0.083575409 0.028000359 -30.932596 54.142413 6657.8104 7.5201442e+08 0.082230620 0.029841174 -31.045574 54.039491 6659.6766 7.1484567e+08 0.081013310 0.031693449 -31.158541 53.939076 6661.5429 6.8008026e+08 0.079886049 0.032811447 -31.271271 53.838779 6663.4091 6.5470801e+08 0.078857558 0.032369841 -31.366485 53.747227 6665.2753 6.3230848e+08 0.078586998 0.028096001 -31.461698 53.655675 6667.1416 6.1464313e+08 0.078119935 0.027155452 -31.560753 53.560431 6669.0078 5.9525733e+08 0.076907109 0.028347715 -31.669554 53.455815 6670.8740 5.7018335e+08 0.077071423 0.026923721 -31.778355 53.351198 6672.7402 5.4788982e+08 0.076729904 0.027308649 -31.887155 53.250318 6674.6065 5.2240215e+08 0.075576241 0.029466376 -31.995956 53.149885 6676.4727 4.9839741e+08 0.073545561 0.032018364 -32.096068 53.053930 6678.3389 4.8061363e+08 0.072747931 0.030709939 -32.187606 52.962392 6680.2051 4.6225508e+08 0.073051905 0.029485713 -32.279143 52.870855 6682.0714 4.4604494e+08 0.073530458 0.030479063 -32.384011 52.769218 6683.9376 4.3089517e+08 0.073556258 0.032562621 -32.492813 52.664602 6685.8038 4.1315325e+08 0.073026854 0.033553860 -32.598414 52.559985 6687.6700 3.9875998e+08 0.070879948 0.033969214 -32.698845 52.455368 6689.5363 3.8089659e+08 0.068683164 0.033533302 -32.799280 52.350751 6691.4025 3.6433332e+08 0.067709641 0.032906302 -32.903863 52.246134 6693.2687 3.4969387e+08 0.066844023 0.031511903 -33.008480 52.141518 6695.1349 3.3201077e+08 0.066349048 0.029834687 -33.103000 52.044790 6697.0012 3.1871515e+08 0.065773754 0.030091413 -33.190876 51.953252 6698.8674 3.0874183e+08 0.064623147 0.031408412 -33.278753 51.861715 6700.7336 3.0177865e+08 0.063082895 0.031211863 -33.373929 51.758773 6702.5998 2.9555051e+08 0.062425578 0.033355708 -33.470176 51.654156 6704.4661 2.8080779e+08 0.062731788 0.036406418 -33.568440 51.551558 6706.3323 2.6574100e+08 0.062708133 0.039024739 -33.668871 51.451128 6708.1985 2.5150833e+08 0.062503362 0.040259761 -33.768915 51.350309 6710.0647 2.4524532e+08 0.061470143 0.040509168 -33.865164 51.245692 6711.9310 2.4248661e+08 0.059565914 0.041751425 -33.961413 51.141075 6713.7972 2.3670006e+08 0.057748273 0.046569923 -34.057661 51.036458 6715.6634 2.2849717e+08 0.056301339 0.048057121 -34.153908 50.931841 6717.5297 2.1694482e+08 0.054578599 0.049841507 -34.245238 50.831323 6719.3959 2.0810682e+08 0.052975475 0.050993726 -34.325790 50.739785 6721.2621 2.0218952e+08 0.053363824 0.050382872 -34.406342 50.648248 6723.1283 1.9907873e+08 0.052312005 0.049440515 -34.493595 50.549096 6724.9946 1.9438400e+08 0.048393636 0.041621488 -34.585658 50.444480 6726.8608 1.8837621e+08 0.046943897 0.040959131 -34.677721 50.339863 6728.7270 1.7990047e+08 0.046763919 0.040658507 -34.769784 50.235247 6730.5932 1.7506423e+08 0.045311410 0.041192298 -34.861847 50.130630 6732.4595 1.7119691e+08 0.044079431 0.043824794 -34.953909 50.022653 6734.3257 1.6604195e+08 0.043524425 0.049334004 -35.045971 49.913850 6736.1919 1.6034691e+08 0.045108727 0.051080536 -35.136305 49.806777 6738.0581 1.5144599e+08 0.046286091 0.057641160 -35.224184 49.702161 6739.9244 1.4280629e+08 0.046279076 0.063957796 -35.312063 49.597544 6741.7906 1.3587936e+08 0.044647815 0.068013497 -35.399940 49.492928 6743.6568 1.3062541e+08 0.040852771 0.075478293 -35.487818 49.388312 6745.5230 1.3054847e+08 0.039298898 0.078786768 -35.575695 49.283695 6747.3893 1.2503222e+08 0.035084650 0.067227152 -35.663572 49.179079 6749.2555 1.2147742e+08 0.034660290 0.072207979 -35.751450 49.074462 6751.1217 1.1566988e+08 0.032353908 0.073763134 -35.839327 48.969846 6752.9879 1.1049642e+08 0.030110394 0.072991240 -35.927205 48.865229 6754.8542 1.0875893e+08 0.028698492 0.074839858 -36.011496 48.760628 6756.7204 1.0262377e+08 0.026487423 0.076020594 -36.095175 48.656028 6758.5866 1.0000054e+08 0.027145223 0.074945813 -36.178861 48.551421 6760.4528 97246325. 0.027689695 0.076924831 -36.262555 48.446805 6762.3191 92921230. 0.031952576 0.077536152 -36.346248 48.342188 6764.1853 85888352. 0.034757372 0.079492163 -36.429942 48.237572 6766.0515 81504694. 0.036364029 0.079830299 -36.513635 48.132955 6767.9178 79317522. 0.033922321 0.080948122 -36.597329 48.028339 6769.7840 81172539. 0.029852691 0.086355752 -36.681022 47.923722 6771.6502 79536662. 0.026603806 0.090882170 -36.763480 47.817871 6773.5164 76250968. 0.023408226 0.095408588 -36.842988 47.709070 6775.3827 72624433. 0.020250787 0.099935007 -36.922496 47.600270 6777.2489 68243693. 0.017171715 0.10446143 -37.002004 47.495258 6779.1151 66501103. 0.014083444 0.10898784 -37.081512 47.390641 6780.9813 61811946. 0.011325456 0.11351426 -37.161021 47.286024 6782.8476 59349810. 0.0085150374 0.11804068 -37.240531 47.181407 6784.7138 54876496. 0.0087122695 0.12256710 -37.320040 47.076791 6786.5800 51666391. 0.0026216176 0.12709352 -37.399548 46.972174 6788.4462 51282504. -0.0072512015 0.13161994 -37.479056 46.867558