# # 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 = 61.582902 km # Date (UTC) = 2015-01-13T09:37:19.629 # Date (julian) = 2457035.90092163 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6505.1129 8.6454405e+10 0.070438460 0.033824993 110.93010 37.502326 6507.5694 7.3860407e+10 0.081230931 0.034565741 111.00721 37.367378 6510.0259 6.3863325e+10 0.092282867 0.035306489 111.08495 37.231657 6512.4824 5.5808915e+10 0.10360110 0.036047236 111.17308 37.082936 6514.9389 4.8696295e+10 0.11511158 0.036787984 111.25855 36.937528 6517.3954 4.2746911e+10 0.12692287 0.037528731 111.33567 36.802578 6519.8518 3.8094954e+10 0.13918275 0.038269479 111.41199 36.667625 6522.3083 3.4431766e+10 0.15107822 0.038997990 111.48429 36.532657 6524.7648 3.1098917e+10 0.15772800 0.039698665 111.55804 36.396435 6527.2213 2.7865022e+10 0.16264010 0.040877141 111.64617 36.247713 6529.6778 2.4883867e+10 0.16648318 0.043315451 111.72993 36.102789 6532.1343 2.2242730e+10 0.16993559 0.046796370 111.80223 35.967841 6534.5908 2.0060114e+10 0.17149253 0.048109819 111.87452 35.833861 6537.0473 1.8195608e+10 0.17239506 0.048707508 111.94682 35.703732 6539.5037 1.6485735e+10 0.17289954 0.050253403 112.01911 35.572996 6541.9602 1.4976107e+10 0.17226897 0.051015133 112.09141 35.438048 6544.4167 1.3607284e+10 0.17129310 0.051982404 112.16423 35.302113 6546.8732 1.2362721e+10 0.16995847 0.053183041 112.24685 35.147882 6549.3297 1.1230104e+10 0.16772380 0.054302274 112.32590 34.999331 6551.7862 1.0245104e+10 0.16571877 0.055511716 112.39337 34.869202 6554.2427 9.4361752e+09 0.16287726 0.054837473 112.46162 34.738298 6556.6992 8.7306923e+09 0.16045569 0.053910335 112.53392 34.603350 6559.1557 8.0985109e+09 0.15755584 0.052369612 112.60580 34.468816 6561.6121 7.5353963e+09 0.15471562 0.051071029 112.67327 34.338687 6564.0686 7.0017044e+09 0.15162546 0.048740492 112.74091 34.208291 6566.5251 6.4760723e+09 0.14957972 0.046885824 112.82354 34.054062 6568.9816 5.9621187e+09 0.14766956 0.044869327 112.90320 33.904547 6571.4381 5.4860344e+09 0.14644103 0.044383621 112.97067 33.774418 6573.8946 5.0979452e+09 0.14424948 0.042939595 113.03815 33.644289 6576.3511 4.7678301e+09 0.14207402 0.040967296 113.10562 33.514160 6578.8076 4.4823705e+09 0.13921643 0.037374373 113.17309 33.383809 6581.2641 4.2393987e+09 0.13660350 0.035516650 113.24057 33.248862 6583.7205 4.0036933e+09 0.13422074 0.034656960 113.30804 33.113914 6586.1770 3.7560234e+09 0.13173956 0.033169008 113.38488 32.965591 6588.6335 3.5026558e+09 0.12965809 0.033168364 113.45974 32.819008 6591.0900 3.2596622e+09 0.12666201 0.029100345 113.52241 32.684040 6593.5465 3.0568223e+09 0.12379735 0.026594144 113.58547 32.549464 6596.0030 2.8892621e+09 0.12004677 0.025727260 113.65294 32.419335 6598.4595 2.7358917e+09 0.11715457 0.025187796 113.72037 32.289206 6600.9160 2.6047868e+09 0.11569353 0.026872927 113.78304 32.159077 6603.3725 2.4793472e+09 0.11351995 0.026442783 113.84569 32.028948 6605.8289 2.3465857e+09 0.11228079 0.027360459 113.91668 31.876375 6608.2854 2.2114621e+09 0.10968213 0.023724825 113.98781 31.724934 6610.7419 2.0802162e+09 0.10658376 0.024711865 114.05529 31.594805 6613.1984 1.9678509e+09 0.10557612 0.023646386 114.12257 31.464676 6615.6549 1.8718718e+09 0.10429769 0.023271681 114.18522 31.334548 6618.1114 1.7853133e+09 0.10367434 0.023854904 114.24787 31.204420 6620.5679 1.7055229e+09 0.10300187 0.024950194 114.31053 31.074291 6623.0244 1.6308607e+09 0.10156305 0.024500851 114.37318 30.944162 6625.4808 1.5596680e+09 0.10006552 0.025971402 114.43584 30.809737 6627.9373 1.4895743e+09 0.098202362 0.025678890 114.49849 30.674789 6630.3938 1.4137182e+09 0.096641351 0.025929272 114.56396 30.528597 6632.8503 1.3357702e+09 0.095054934 0.026134305 114.63003 30.379973 6635.3068 1.2548575e+09 0.093497106 0.026445797 114.69271 30.249763 6637.7633 1.1845394e+09 0.092103166 0.025787574 114.75536 30.119635 6640.2198 1.1329152e+09 0.091788477 0.025243761 114.81802 29.989505 6642.6763 1.0847543e+09 0.091441232 0.025179371 114.88067 29.859375 6645.1328 1.0434814e+09 0.090041309 0.025513877 114.93923 29.729230 6647.5892 9.9927212e+08 0.088476766 0.026748021 114.99708 29.599082 6650.0457 9.5174479e+08 0.087330176 0.026265707 115.06133 29.454510 6652.5022 9.0762861e+08 0.086426715 0.027388703 115.12742 29.305788 6654.9587 8.5992512e+08 0.084962067 0.027627805 115.19022 29.170304 6657.4152 8.1825444e+08 0.082616350 0.029382732 115.25287 29.035357 6659.8717 7.8202499e+08 0.080879468 0.031652763 115.31125 28.904679 6662.3282 7.5048790e+08 0.079264775 0.032860144 115.36909 28.774550 6664.7847 7.1811496e+08 0.078506568 0.029335024 115.43363 28.629336 6667.2412 6.8281792e+08 0.078322495 0.027192038 115.49971 28.480662 6669.6976 6.4750635e+08 0.077625375 0.027639173 115.55760 28.350407 6672.1541 6.1850539e+08 0.077582412 0.026968938 115.61543 28.220278 6674.6106 5.9950162e+08 0.076384705 0.029469891 115.67327 28.090150 6677.0671 5.8028029e+08 0.073990991 0.032262814 115.73110 27.960022 6679.5236 5.5194906e+08 0.073860024 0.029835093 115.79127 27.814161 6681.9801 5.2197344e+08 0.074969392 0.030409266 115.85177 27.666157 6684.4366 4.9428509e+08 0.075253069 0.032676246 115.90961 27.540848 6686.8931 4.7444312e+08 0.073772372 0.034280683 115.96744 27.415539 6689.3496 4.6369969e+08 0.070777844 0.033701370 116.02528 27.285622 6691.8060 4.4987363e+08 0.069611187 0.032811090 116.08311 27.155493 6694.2625 4.3262887e+08 0.068600635 0.030893077 116.14337 27.008985 6696.7190 4.1265420e+08 0.068268517 0.029974523 116.20378 26.861482 6699.1755 3.9134678e+08 0.066866296 0.031428489 116.26162 26.731353 6701.6320 3.7765925e+08 0.064823629 0.032336764 116.31946 26.601219 6704.0885 3.6398286e+08 0.064887967 0.036221004 116.38002 26.452677 6706.5450 3.4754144e+08 0.064728036 0.039394888 116.43928 26.307211 6709.0015 3.3285358e+08 0.064012310 0.041131613 116.49230 26.177081 6711.4580 3.1697015e+08 0.061933527 0.041213255 116.54663 26.045087 6713.9144 3.0825806e+08 0.059437178 0.046993954 116.61273 25.896366 6716.3709 2.9633090e+08 0.057499626 0.048947702 116.67510 25.754313 6718.8274 2.8172715e+08 0.055044474 0.051101053 116.72811 25.629004 6721.2839 2.7001866e+08 0.055434360 0.050389441 116.78113 25.502679 6723.7404 2.6006672e+08 0.053801887 0.049781874 116.83415 25.372531 6726.1969 2.5635818e+08 0.049640652 0.040953143 116.88820 25.239868 6728.6534 2.4931614e+08 0.049004124 0.040554140 116.94879 25.091146 6731.1099 2.3781458e+08 0.047219580 0.041968665 117.00938 24.944194 6733.5663 2.2292508e+08 0.045989264 0.046999175 117.06996 24.801004 6736.0228 2.1140400e+08 0.047460235 0.050441341 117.12673 24.664388 6738.4793 2.0582172e+08 0.048710386 0.059959997 117.17975 24.534240 6740.9358 2.0010333e+08 0.047757659 0.065649039 117.23366 24.396113 6743.3923 1.9328102e+08 0.043395671 0.073693901 117.28874 24.247392 6745.8488 1.8389773e+08 0.041007244 0.078923711 117.34255 24.113049 6748.3053 1.7519181e+08 0.036855074 0.068622986 117.39557 23.987739 6750.7618 1.6837585e+08 0.033988439 0.073304881 117.45267 23.849806 6753.2183 1.6087144e+08 0.031020470 0.073683608 117.51326 23.701084 6755.6747 1.5428432e+08 0.028532774 0.074309512 117.56986 23.552362 6758.1312 1.4852818e+08 0.027470101 0.073982835 117.62495 23.403640 6760.5877 1.4358807e+08 0.027946002 0.077182031 117.67815 23.276183 6763.0442 1.3676771e+08 0.033087862 0.076572410 117.73117 23.150873 6765.5007 1.3326300e+08 0.035517117 0.079622598 117.78590 23.006051 6767.9572 1.2880481e+08 0.033038221 0.080903963 117.84099 22.857429 6770.4137 1.2582132e+08 0.027795248 0.087883049 117.89607 22.714216 6772.8702 1.1940931e+08 0.023291845 0.093841114 117.95227 22.571002 6775.3267 1.1215719e+08 0.018785645 0.099799179 118.01286 22.427789 6777.7831 1.0692037e+08 0.014278224 0.10575724 118.07132 22.282443 6780.2396 1.0156360e+08 0.0097576366 0.11171531 118.12640 22.133721 6782.6961 99574299. 0.0052672899 0.11767337 118.17755 21.998380 6785.1526 95720647. 0.00074859013 0.12363144 118.22574 21.873070 6787.6091 95170246. -0.0037174995 0.12958950 118.27736 21.736133 6790.0656 92304186. -0.0082221468 0.13554757 118.33244 21.587412 6792.5221 87009618. -0.012788413 0.14150563 118.38752 21.442443 6794.9786 81794347. -0.017377291 0.14746370 118.44260 21.299229 6797.4351 77781145. -0.021950918 0.15342176 118.49769 21.156015 6799.8915 75475570. -0.026471766 0.15937983 118.55277 21.012525 6802.3480 75457320. -0.030897561 0.16533789 118.60785 20.863803 6804.8045 72884837. -0.035438138 0.17129596 118.66293 20.716374 6807.2610 71253472. -0.039943522 0.17725402 118.71802 20.573160 6809.7175 68792245. -0.044507527 0.18321209 118.77310 20.429946 6812.1740 66644172. -0.049077443 0.18917015 118.82818 20.286732 6814.6305 64460533. -0.053677249 0.19512822 118.88326 20.143518 6817.0870 63144652. -0.058250286 0.20108628 118.93834 20.000305 6819.5434 61633823. -0.062879877 0.20704435 118.98908 19.852749 6821.9999 60359342. -0.067542336 0.21300241 119.03866 19.704029 6824.4564 59617082. -0.072221354 0.21896048 119.10251 19.537471 6826.9129 55309198. -0.077454728 0.22491854 119.16065 19.380347 6829.3694 49181765. -0.083359923 0.23087661 119.21023 19.237133 6831.8259 48502770. -0.088815767 0.23683467 119.26311 19.093919 6834.2824 48307419. -0.094772507 0.24279274 119.31819 18.950705 6836.7389 48239294. -0.10184952 0.24875080 119.36895 18.807491 6839.1954 49123523. -0.11179159 0.25470886 119.41852 18.664278 6841.6518 45754883. -0.15464186 0.26066693 119.48234 18.497904 6844.1083 45577449. -0.12764703 0.26662499 119.54052 18.340702 6846.5648 42978606. -0.063301738 0.27258306 119.59010 18.197488