# # 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 = 56.725258 km # Date (UTC) = 2013-11-16T09:26:32.706 # Date (julian) = 2456612.89343409 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6495.1071 6.8948089e+10 0.033200422 0.030807781 112.51771 33.041441 6497.1759 6.3524257e+10 0.039316236 0.031431620 112.57509 32.905198 6499.2447 5.9018088e+10 0.045381398 0.032055460 112.63076 32.770670 6501.3135 5.4589433e+10 0.051512910 0.032679299 112.69340 32.625497 6503.3823 5.0043070e+10 0.057758372 0.033303138 112.76376 32.468543 6505.4511 4.5883421e+10 0.064254937 0.033926977 112.82490 32.325651 6507.5199 4.2100463e+10 0.071130242 0.034550817 112.88057 32.191122 6509.5887 3.9004317e+10 0.078614201 0.035174656 112.93624 32.054408 6511.6575 3.6222970e+10 0.086789074 0.035798495 112.99190 31.915242 6513.7263 3.3644756e+10 0.095743671 0.036422334 113.04757 31.777540 6515.7951 3.1377659e+10 0.10561652 0.037046174 113.10324 31.643013 6517.8639 2.9123186e+10 0.11629130 0.037670013 113.16039 31.504899 6519.9327 2.6713839e+10 0.12752968 0.038293852 113.22533 31.347945 6522.0015 2.4309285e+10 0.13938578 0.038917634 113.28593 31.197994 6524.0703 2.2115233e+10 0.14603128 0.039451918 113.33696 31.063467 6526.1390 2.0332066e+10 0.15237479 0.039813863 113.38871 30.928214 6528.2078 1.8852170e+10 0.15976510 0.041607365 113.44438 30.789046 6530.2766 1.7495995e+10 0.16623342 0.044215982 113.50005 30.649905 6532.3454 1.6202437e+10 0.17134457 0.046972761 113.55572 30.515356 6534.4142 1.5043453e+10 0.17356059 0.048060432 113.61138 30.380829 6536.4830 1.4027788e+10 0.17340148 0.048222669 113.66313 30.246301 6538.5518 1.3127189e+10 0.17295126 0.049425384 113.71416 30.111773 6540.6206 1.2317950e+10 0.17177400 0.051147292 113.76838 29.977246 6542.6894 1.1589763e+10 0.16985666 0.051263972 113.82405 29.842718 6544.7582 1.0918991e+10 0.16838889 0.052259408 113.87724 29.708191 6546.8270 1.0321944e+10 0.16665409 0.053145002 113.92826 29.573663 6548.8958 9.7118570e+09 0.16476505 0.053935156 113.98251 29.430656 6550.9646 9.0643389e+09 0.16348407 0.055226880 114.04204 29.273704 6553.0334 8.4620931e+09 0.16268504 0.055318294 114.09707 29.128645 6555.1022 7.9165937e+09 0.16136364 0.054767525 114.14809 28.994117 6557.1710 7.4703505e+09 0.15968309 0.053758952 114.19912 28.859598 6559.2397 7.0649403e+09 0.15753767 0.052360121 114.25014 28.725094 6561.3085 6.6720192e+09 0.15538837 0.051220638 114.30116 28.590584 6563.3773 6.3048693e+09 0.15345044 0.049491876 114.35219 28.456056 6565.4461 5.9566533e+09 0.15170420 0.047811811 114.40322 28.321528 6567.5149 5.6389950e+09 0.15027797 0.046181807 114.45424 28.187001 6569.5837 5.3456560e+09 0.14884008 0.044890415 114.50527 28.052474 6571.6525 5.0734951e+09 0.14740227 0.044325062 114.55630 27.917946 6573.7213 4.8243803e+09 0.14525846 0.043078652 114.60733 27.783418 6575.7901 4.5951170e+09 0.14302584 0.041581991 114.65487 27.648890 6577.8589 4.3855648e+09 0.14072700 0.038871261 114.70126 27.514362 6579.9277 4.1728464e+09 0.13848013 0.036560507 114.75041 27.379834 6581.9965 3.9596463e+09 0.13664018 0.035294861 114.80144 27.245307 6584.0653 3.7658057e+09 0.13506106 0.034479954 114.84787 27.119970 6586.1341 3.6171227e+09 0.13357854 0.033169563 114.88846 27.006319 6588.2029 3.4942273e+09 0.13251178 0.033312185 114.92905 26.892669 6590.2717 3.3708533e+09 0.13075945 0.030556748 114.97983 26.758632 6592.3404 3.2341195e+09 0.12883082 0.027742847 115.03086 26.624105 6594.4092 3.0875545e+09 0.12692989 0.025947870 115.07808 26.489577 6596.4780 2.9429763e+09 0.12472266 0.025725100 115.12447 26.355049 6598.5468 2.8052286e+09 0.12324783 0.025146090 115.17085 26.220522 6600.6156 2.6740600e+09 0.12324046 0.026255483 115.21724 26.085994 6602.6844 2.5577586e+09 0.12264552 0.026932579 115.26599 25.951467 6604.7532 2.4567767e+09 0.12180448 0.026518508 115.31702 25.816939 6606.8220 2.3523198e+09 0.12092508 0.026026847 115.36641 25.684052 6608.8908 2.2567667e+09 0.11810572 0.023708819 115.41280 25.554164 6610.9596 2.1603569e+09 0.11525863 0.024919847 115.45919 25.423356 6613.0284 2.0650014e+09 0.11428575 0.023584005 115.50558 25.288829 6615.0972 1.9700517e+09 0.11304438 0.023254522 115.55197 25.154301 6617.1660 1.8795933e+09 0.11171076 0.023494277 115.59836 25.019774 6619.2348 1.7972748e+09 0.11087522 0.024582560 115.64474 24.885247 6621.3036 1.7175358e+09 0.10979479 0.024988830 115.69113 24.754832 6623.3724 1.6413513e+09 0.10806029 0.024629777 115.73752 24.624943 6625.4411 1.5712186e+09 0.10678675 0.025924027 115.77670 24.503957 6627.5099 1.5158546e+09 0.10499500 0.025513793 115.81323 24.386247 6629.5787 1.4705272e+09 0.10400232 0.026004468 115.85240 24.265283 6631.6475 1.4221939e+09 0.10252670 0.025996542 115.89879 24.135395 6633.7163 1.3719676e+09 0.10134471 0.026277316 115.94518 24.004989 6635.7851 1.3203828e+09 0.10008775 0.026517528 115.99157 23.870461 6637.8539 1.2667277e+09 0.099214310 0.025743192 116.03795 23.735933 6639.9227 1.2132896e+09 0.099125136 0.025298279 116.07991 23.605840 6641.9915 1.1576065e+09 0.099398989 0.025151667 116.12166 23.475951 6644.0603 1.1083678e+09 0.098444457 0.025350122 116.16712 23.342350 6646.1291 1.0672122e+09 0.097482640 0.025986966 116.21351 23.207822 6648.1979 1.0267520e+09 0.096476349 0.027096746 116.25691 23.076284 6650.2667 9.8736718e+08 0.095762377 0.026316286 116.29866 22.946395 6652.3355 9.4430601e+08 0.095221992 0.027342821 116.34268 22.814239 6654.4043 9.0604915e+08 0.094281283 0.027864007 116.38906 22.679712 6656.4731 8.7406115e+08 0.092330983 0.028438615 116.43217 22.552140 6658.5418 8.4721722e+08 0.090655114 0.031022057 116.46870 22.438489 6660.6106 8.2281729e+08 0.089072887 0.032181042 116.50523 22.324839 6662.6794 7.9402603e+08 0.087600683 0.032663068 116.54630 22.197070 6664.7482 7.6844601e+08 0.086513116 0.029468349 116.58805 22.067182 6666.8170 7.4192129e+08 0.085944127 0.027067802 116.63311 21.933982 6668.8858 7.1805013e+08 0.084466809 0.028254659 116.67950 21.799454 6670.9546 6.9224628e+08 0.084344031 0.026886376 116.72330 21.667515 6673.0234 6.6504615e+08 0.083928200 0.027494220 116.76505 21.537626 6675.0922 6.4058542e+08 0.082402804 0.029974950 116.80680 21.407737 6677.1610 6.1681531e+08 0.080461230 0.032129351 116.84855 21.277849 6679.2298 5.9337021e+08 0.080063119 0.030077887 116.89030 21.146817 6681.2986 5.6915697e+08 0.081080179 0.029886424 116.93205 21.012289 6683.3674 5.4951563e+08 0.081524721 0.031726970 116.97380 20.878183 6685.4362 5.2776887e+08 0.081233566 0.033165537 117.01555 20.748294 6687.5050 5.0769215e+08 0.079266660 0.034061279 117.05730 20.618405 6689.5738 4.9058322e+08 0.076952115 0.033499553 117.09417 20.503704 6691.6425 4.7607825e+08 0.075918899 0.032849664 117.13070 20.390054 6693.7113 4.6475353e+08 0.074900075 0.031360055 117.16969 20.268746 6695.7801 4.5415599e+08 0.074546698 0.029716172 117.21144 20.138857 6697.8489 4.3843991e+08 0.073753746 0.030198699 117.25319 20.008968 6699.9177 4.2391778e+08 0.072180023 0.030743637 117.29494 19.879080 6701.9865 4.0859855e+08 0.070411365 0.032856946 117.33595 19.749192 6704.0553 3.9259022e+08 0.070693159 0.036204714 117.37306 19.619303 6706.1241 3.8181362e+08 0.070529629 0.038662398 117.41021 19.489414 6708.1929 3.7156967e+08 0.070009589 0.040253637 117.45194 19.359524 6710.2617 3.6002369e+08 0.068627187 0.040547718 117.49369 19.229635 6712.3305 3.4654650e+08 0.066492530 0.042443560 117.53544 19.099746 6714.3993 3.3369270e+08 0.064370160 0.047333426 117.57719 18.969858 6716.4681 3.1927242e+08 0.062554371 0.049090788 117.61572 18.839970 6718.5369 3.1014348e+08 0.060317596 0.050648543 117.65283 18.710081 6720.6057 2.9806008e+08 0.060120477 0.050349590 117.69244 18.580192 6722.6745 2.8909421e+08 0.059520131 0.049771403 117.73419 18.450304 6724.7432 2.7834496e+08 0.055939997 0.043720065 117.77594 18.320416 6726.8120 2.6453365e+08 0.053819151 0.040958691 117.81769 18.190527 6728.8808 2.5517160e+08 0.053470286 0.040876532 117.85839 18.060638 6730.9496 2.4334798e+08 0.051777067 0.041680960 117.89550 17.930749 6733.0184 2.3445772e+08 0.050591313 0.044024329 117.93261 17.800861 6735.0872 2.2482881e+08 0.050696032 0.049386019 117.96972 17.670972 6737.1560 2.1701966e+08 0.052176790 0.054632540 118.00684 17.541083 6739.2248 2.1094179e+08 0.052559727 0.063101669 118.04819 17.411194 6741.2936 2.0557403e+08 0.051011208 0.066596049 118.08994 17.281305 6743.3624 2.0059314e+08 0.046962683 0.073492124 118.12817 17.151416 6745.4312 1.9320444e+08 0.044430719 0.078748153 118.16528 17.021527 6747.5000 1.8738606e+08 0.039851709 0.067189038 118.20519 16.894438 6749.5688 1.7907506e+08 0.038274712 0.072122203 118.24693 16.769189 6751.6376 1.7240698e+08 0.035124870 0.073981238 118.28661 16.641863 6753.7064 1.6806815e+08 0.033216504 0.075263200 118.32372 16.511974 6755.7752 1.6042816e+08 0.030761781 0.074265490 118.36083 16.382085 6757.8439 1.5458561e+08 0.029497254 0.074178900 118.39794 16.252195 6759.9127 1.4879886e+08 0.029914806 0.076040214 118.43506 16.122937 6761.9815 1.4648933e+08 0.033188078 0.078049319 118.47217 15.997688 6764.0503 1.3903808e+08 0.035969493 0.079485697 118.50928 15.872438 6766.1191 1.3193345e+08 0.037244980 0.079983205 118.54639 15.742640 6768.1879 1.2538462e+08 0.033842473 0.081532193 118.58350 15.612752 6770.2567 1.1985108e+08 0.029278562 0.087502336 118.62061 15.482863 6772.3255 1.1659770e+08 0.025294536 0.092520070 118.65772 15.352975 6774.3943 1.1132221e+08 0.021282770 0.097537804 118.69483 15.226190 6776.4631 1.0680419e+08 0.017271312 0.10255554 118.73194 15.100940 6778.5319 1.0632993e+08 0.013313773 0.10757327 118.76906 14.973308 6780.6007 1.0281162e+08 0.0093126898 0.11259101 118.80617 14.843419 6782.6695 1.0109374e+08 0.0053399558 0.11760874 118.84328 14.715190 6784.7383 97099526. 0.0013146450 0.12262648 118.88039 14.589940 6786.8071 92826423. -0.0027399026 0.12764421 118.91750 14.463752 6788.8759 92486243. -0.0066686996 0.13266195 118.95461 14.333864 6790.9446 87461024. -0.010787808 0.13767968 118.99201 14.203222 6793.0134 84931559. -0.014823553 0.14269741 119.03530 14.057093 6795.0822 79900732. -0.019030818 0.14771515 119.07737 13.914191 6797.1510 76721082. -0.023192713 0.15273288 119.11449 13.784303 6799.2198 74530551. -0.027344674 0.15775062 119.15160 13.654614 6801.2886 70298398. -0.031755326 0.16276835 119.18871 13.529364 6803.3574 66946413. -0.036261185 0.16778609 119.22582 13.404115 6805.4262 64654408. -0.040882982 0.17280382 119.26292 13.274768 6807.4950 61097958. -0.046043685 0.17782155 119.30003 13.144900 6809.5638 60243424. -0.051253464 0.18283929 119.34166 13.003142 6811.6326 56898354. -0.059490371 0.18785702 119.38496 12.857013 6813.7014 51860735. -0.086379644 0.19287476 119.41869 12.729332 6815.7702 50035492. -0.074134015 0.19789249 119.45116 12.604083 6819.9078 46345191. -0.037458805 0.20792796 119.52412 12.345568