# # 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 = 46.052746 km # Date (UTC) = 2010-11-22T10:42:50.955 # Date (julian) = 2455522.94642309 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6509.9977 1.1178037e+11 0.097767311 0.035297997 89.792258 37.964299 6512.1515 9.4025479e+10 0.10780439 0.035947455 89.868342 37.827900 6514.3052 8.0608295e+10 0.11810314 0.036596913 89.945614 37.692678 6516.4590 6.9576674e+10 0.12858797 0.037246372 90.019580 37.557454 6518.6127 6.0426726e+10 0.13928443 0.037895830 90.092022 37.422230 6520.7665 5.3063569e+10 0.15026465 0.038545288 90.164461 37.284043 6522.9202 4.6899027e+10 0.15895256 0.039158226 90.236899 37.143992 6525.0740 4.1801367e+10 0.16491123 0.039773770 90.309339 37.006563 6527.2277 3.7355806e+10 0.16904439 0.040881815 90.381781 36.871339 6529.3815 3.3490768e+10 0.17212988 0.042843474 90.451940 36.736115 6531.5352 3.0199123e+10 0.17502716 0.046007739 90.519551 36.600893 6533.6890 2.7274687e+10 0.17697068 0.047812392 90.589103 36.465671 6535.8428 2.4698470e+10 0.17680605 0.047858714 90.661544 36.330449 6537.9965 2.2414545e+10 0.17802502 0.049155033 90.732387 36.193627 6540.1503 2.0427986e+10 0.17811172 0.050925088 90.799998 36.053574 6542.3040 1.8662395e+10 0.17615034 0.051117657 90.868867 35.914779 6544.4578 1.7106079e+10 0.17423530 0.052015693 90.941309 35.779555 6546.6115 1.5707524e+10 0.17155592 0.052967704 91.012833 35.644332 6548.7653 1.4404640e+10 0.16854202 0.053896181 91.080444 35.509110 6550.9190 1.3210331e+10 0.16576379 0.055215474 91.148055 35.373888 6553.0728 1.2126097e+10 0.16366445 0.055298486 91.215667 35.238665 6555.2265 1.1146194e+10 0.16136146 0.054663031 91.283278 35.103443 6557.3803 1.0256692e+10 0.15888500 0.053627749 91.350889 34.968220 6559.5340 9.4878841e+09 0.15605535 0.052326904 91.418500 34.832998 6561.6878 8.8634947e+09 0.15302584 0.051033758 91.473716 34.710174 6563.8415 8.3617035e+09 0.14978230 0.048954907 91.528651 34.587630 6565.9953 7.9123264e+09 0.14705071 0.047188237 91.591336 34.457335 6568.1490 7.4259779e+09 0.14517897 0.045634661 91.658947 34.322111 6570.3028 6.8965372e+09 0.14334619 0.044792083 91.723946 34.186888 6572.4565 6.3941350e+09 0.14123811 0.043968706 91.786727 34.051666 6574.6103 5.9427524e+09 0.13865476 0.042561882 91.851778 33.916443 6576.7640 5.5429486e+09 0.13595086 0.040491959 91.919389 33.781221 6578.9178 5.1749777e+09 0.13263836 0.037200302 91.985071 33.645998 6581.0716 4.8299894e+09 0.12977141 0.035574942 92.047852 33.510774 6583.2253 4.5072917e+09 0.12732452 0.034907628 92.110634 33.375551 6585.3791 4.1891499e+09 0.12463064 0.033667726 92.173418 33.240329 6587.5328 3.8983392e+09 0.12211950 0.033276419 92.234176 33.109469 6589.6866 3.6513593e+09 0.11923758 0.031683903 92.289108 32.991152 6591.8403 3.4503699e+09 0.11572596 0.028253715 92.344040 32.872834 6593.9941 3.2808628e+09 0.11216079 0.026178042 92.405973 32.739446 6596.1478 3.1086042e+09 0.10840251 0.025726602 92.468757 32.604224 6598.3016 2.9199660e+09 0.10590509 0.025263185 92.531538 32.469000 6600.4553 2.7362236e+09 0.10518617 0.025925933 92.594319 32.333776 6602.6091 2.5623663e+09 0.10453960 0.026996874 92.653479 32.198553 6604.7628 2.4016690e+09 0.10376515 0.026524218 92.711433 32.063331 6606.9166 2.2546576e+09 0.10291948 0.025856900 92.772667 31.928108 6609.0703 2.1120941e+09 0.10011591 0.023726823 92.835447 31.792885 6611.2241 1.9828770e+09 0.097520436 0.024815557 92.890877 31.667956 6613.3778 1.8730932e+09 0.096685670 0.023712219 92.941586 31.549638 6615.5316 1.7797767e+09 0.095362532 0.023267887 92.995221 31.427222 6617.6853 1.6911740e+09 0.094501705 0.023666472 93.058001 31.292000 6619.8391 1.5985652e+09 0.093917775 0.024728374 93.119953 31.156778 6621.9928 1.5056550e+09 0.092808292 0.024760364 93.177907 31.021555 6624.1466 1.4176784e+09 0.091009754 0.024940783 93.235861 30.886331 6626.3003 1.3329217e+09 0.089757676 0.026208230 93.293811 30.751109 6628.4541 1.2576559e+09 0.088237196 0.025887465 93.351541 30.616401 6630.6079 1.1885154e+09 0.086645700 0.025929800 93.402250 30.498084 6632.7616 1.1320226e+09 0.085090884 0.026123668 93.452958 30.379766 6634.9154 1.0819505e+09 0.083497574 0.026393613 93.508475 30.250225 6637.0691 1.0270019e+09 0.081846290 0.026127563 93.566425 30.115002 6639.2229 9.6957702e+08 0.080831853 0.025548418 93.624377 29.982644 6641.3766 9.0903481e+08 0.081256427 0.025149579 93.682332 29.852251 6643.5304 8.5119637e+08 0.080440284 0.025272698 93.737761 29.719333 6645.6841 8.0045917e+08 0.079415637 0.025772169 93.790885 29.584110 6647.8379 7.5899501e+08 0.078501880 0.026878924 93.842917 29.456528 6649.9916 7.2325318e+08 0.077954842 0.026266781 93.893626 29.338210 6652.1454 6.9207937e+08 0.077632767 0.027290520 93.944953 29.218448 6654.2991 6.6274415e+08 0.077052387 0.027908793 94.002903 29.083226 6656.4529 6.3188100e+08 0.075439776 0.028420910 94.060782 28.948075 6658.6066 5.9826463e+08 0.074153818 0.031136957 94.113905 28.817682 6660.7604 5.6431076e+08 0.073012322 0.032317153 94.167029 28.687288 6662.9141 5.3012980e+08 0.072021061 0.032531386 94.220153 28.552335 6665.0679 5.0044824e+08 0.071563154 0.028435888 94.273277 28.417111 6667.2216 4.7697157e+08 0.071209519 0.027184871 94.324291 28.296654 6669.3754 4.5699094e+08 0.070248133 0.027970145 94.374999 28.178338 6671.5291 4.3585272e+08 0.070291301 0.026872889 94.426932 28.053899 6673.6829 4.1901068e+08 0.069656350 0.028480545 94.480056 27.923505 6675.8367 4.0030816e+08 0.067553704 0.031400855 94.533179 27.791005 6677.9904 3.7913678e+08 0.066460834 0.030950254 94.586303 27.655782 6680.1442 3.6187080e+08 0.066643240 0.029472546 94.639426 27.520559 6682.2979 3.3923426e+08 0.067345848 0.030652157 94.692550 27.385337 6684.4517 3.2349159e+08 0.067361185 0.032677012 94.745672 27.251539 6686.6054 3.0466149e+08 0.066151479 0.034113324 94.798792 27.121144 6688.7592 2.9071518e+08 0.063288889 0.033960432 94.850423 26.993459 6690.9129 2.7855986e+08 0.062062789 0.033011242 94.896905 26.875142 6693.0667 2.6571490e+08 0.061188059 0.031581216 94.943387 26.756824 6695.2204 2.5759639e+08 0.060630965 0.029818985 94.991426 26.628148 6697.3742 2.4576868e+08 0.060061389 0.030138618 95.039723 26.497754 6699.5279 2.3609150e+08 0.058702712 0.031103305 95.091819 26.363560 6701.6817 2.2442467e+08 0.056981342 0.032409665 95.144942 26.228338 6703.8354 2.1367145e+08 0.057156535 0.035765754 95.198063 26.096575 6705.9892 1.9974178e+08 0.057181477 0.038427178 95.251183 25.966182 6708.1429 1.9174383e+08 0.056801060 0.040199232 95.301188 25.832669 6710.2967 1.8392635e+08 0.055478427 0.040554568 95.349485 25.697445 6712.4504 1.7527607e+08 0.053365061 0.042666279 95.400558 25.565000 6714.6042 1.7009164e+08 0.051303905 0.047348832 95.453682 25.434607 6716.7579 1.6095716e+08 0.049324478 0.049517746 95.501322 25.310307 6718.9117 1.5384883e+08 0.046926502 0.051232316 95.543578 25.191989 6721.0655 1.4290213e+08 0.047221550 0.050323620 95.587333 25.072005 6723.2192 1.3528324e+08 0.045977489 0.049491198 95.640457 24.941611 6725.3730 1.3054281e+08 0.041824226 0.041343052 95.693255 24.811218 6727.5267 1.2643221e+08 0.040634490 0.040258660 95.741548 24.680824 6729.6805 1.2586170e+08 0.039844140 0.040591883 95.789841 24.550422 6731.8342 1.1870135e+08 0.038087227 0.043410262 95.838134 24.415224 6733.9880 1.1443522e+08 0.037069454 0.049288259 95.886428 24.280001 6736.1417 1.1003514e+08 0.038883483 0.050890777 95.934721 24.149250 6738.2955 1.0240364e+08 0.040013106 0.058947788 95.983014 24.018857 6740.4492 97233631. 0.039555957 0.064817780 96.031307 23.888463 6742.6030 91482039. 0.036733373 0.070080012 96.079600 23.758070 6744.7567 87058533. 0.033113989 0.078378721 96.127896 23.627676 6746.9105 84155543. 0.028997663 0.068401943 96.176193 23.497283 6749.0642 83736331. 0.029030313 0.072260347 96.224487 23.363441 6751.2180 81627971. 0.026141864 0.073803836 96.272780 23.228219 6753.3717 80542958. 0.024050296 0.074180295 96.321073 23.096104 6755.5255 77061381. 0.022165467 0.074374952 96.369366 22.965710 6757.6792 70593668. 0.020797095 0.074678743 96.417659 22.835316 6759.8330 70397306. 0.021885968 0.076020969 96.465953 22.704922 6761.9867 68590049. 0.025654145 0.078049749 96.511823 22.574529 6764.1405 66572761. 0.028816640 0.079490016 96.555289 22.444136 6766.2942 60715918. 0.029849463 0.080379345 96.600838 22.313743 6768.4480 55669426. 0.025696645 0.082468042 96.649131 22.183350 6770.6018 52082709. 0.020688532 0.088339219 96.697424 22.052956 6772.7555 52208995. 0.015915627 0.093563015 96.745717 21.922563 6774.9093 52020987. 0.010268861 0.098786812 96.792610 21.792169 6777.0630 46243018. 0.00076431335 0.10401061 96.836076 21.661776 6779.2168 44976231. -0.031143653 0.10923440 96.882369 21.526611 6781.3705 44010311. -0.013145271 0.11445820 96.938713 21.374481 6783.5243 47460310. 0.030968837 0.11968200 96.989328 21.232017