# # 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 = 60.353193 km # Date (UTC) = 2014-12-12T10:39:19.955 # Date (julian) = 2457003.94398097 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6493.3147 5.4343913e+10 0.029796718 0.030267270 96.217582 27.810411 6495.8532 4.9400241e+10 0.037440985 0.031032746 96.275132 27.690881 6498.3917 4.5702850e+10 0.044702791 0.031798222 96.335972 27.568056 6500.9302 4.2430254e+10 0.051808315 0.032563698 96.397959 27.444083 6503.4687 3.9532125e+10 0.059011581 0.033329174 96.457802 27.322257 6506.0072 3.6900733e+10 0.066534941 0.034094650 96.515352 27.202728 6508.5456 3.4393321e+10 0.074524610 0.034860126 96.572903 27.082206 6511.0841 3.2041518e+10 0.083224739 0.035625602 96.630456 26.958249 6513.6226 2.9858647e+10 0.092810933 0.036391078 96.688009 26.834293 6516.1611 2.7844178e+10 0.10352309 0.037156554 96.741285 26.714609 6518.6996 2.5912298e+10 0.11545049 0.037922030 96.794407 26.595080 6521.2381 2.4067660e+10 0.12859923 0.038687506 96.850665 26.475539 6523.7766 2.2324639e+10 0.13789892 0.039371593 96.908226 26.355995 6526.3151 2.0655407e+10 0.14528453 0.039998433 96.965782 26.234473 6528.8536 1.9094563e+10 0.15278419 0.042119641 97.023333 26.110516 6531.3921 1.7659645e+10 0.15997365 0.045799368 97.080046 25.987397 6533.9306 1.6249453e+10 0.16605619 0.047915056 97.133171 25.867867 6536.4691 1.4973433e+10 0.16992692 0.048210195 97.186297 25.748338 6539.0076 1.3816525e+10 0.17262317 0.049652791 97.243538 25.628808 6541.5461 1.2756135e+10 0.17275862 0.051149445 97.301088 25.509278 6544.0846 1.1790898e+10 0.17074047 0.051712942 97.355672 25.389738 6546.6231 1.0877700e+10 0.16848811 0.052977196 97.408805 25.270193 6549.1615 1.0028330e+10 0.16613223 0.054130907 97.463761 25.150655 6551.7000 9.2750080e+09 0.16453678 0.055481475 97.521311 25.031125 6554.2385 8.5946916e+09 0.16220544 0.054837386 97.578180 24.911595 6556.7770 7.9622612e+09 0.16019307 0.053898888 97.631305 24.792066 6559.3155 7.3989594e+09 0.15756299 0.052351568 97.684431 24.672536 6561.8540 6.8814178e+09 0.15499592 0.050951842 97.737553 24.553006 6564.3925 6.4094748e+09 0.15226340 0.048593713 97.790675 24.433476 6566.9310 5.9860841e+09 0.15042428 0.046656220 97.843804 24.313937 6569.4695 5.6021149e+09 0.14872537 0.044882981 97.896936 24.194393 6572.0080 5.2331016e+09 0.14738238 0.044225581 97.952575 24.069209 6574.5465 4.8758611e+09 0.14519938 0.042592532 98.012342 23.934736 6577.0850 4.5316853e+09 0.14299289 0.040086897 98.069651 23.805790 6579.6235 4.2171224e+09 0.14027441 0.036727749 98.122773 23.686260 6582.1620 3.9557594e+09 0.13788197 0.035249720 98.175896 23.566731 6584.7005 3.7214120e+09 0.13547983 0.034133946 98.229021 23.447201 6587.2390 3.4991472e+09 0.13304311 0.033211312 98.282147 23.327671 6589.7774 3.2983923e+09 0.13033139 0.031503600 98.331504 23.208128 6592.3159 3.1142052e+09 0.12682510 0.027766655 98.380208 23.088584 6594.8544 2.9491100e+09 0.12350441 0.025703482 98.431535 22.969048 6597.3929 2.7920204e+09 0.12036818 0.025598735 98.484657 22.849519 6599.9314 2.6306402e+09 0.11939286 0.024985750 98.537780 22.729989 6602.4699 2.4843723e+09 0.11917004 0.027115629 98.590905 22.610459 6605.0084 2.3558626e+09 0.11864135 0.026672095 98.643695 22.490929 6607.5469 2.2405242e+09 0.11725265 0.024627074 98.692392 22.371399 6610.0854 2.1306780e+09 0.11425359 0.024084570 98.741090 22.251869 6612.6239 2.0257645e+09 0.11236053 0.023854607 98.789793 22.132327 6615.1624 1.9277077e+09 0.11133822 0.023256528 98.838497 22.012781 6617.7009 1.8385866e+09 0.11032934 0.023671622 98.893379 21.887681 6620.2394 1.7437413e+09 0.10980097 0.024844334 98.953146 21.758190 6622.7779 1.6433939e+09 0.10850020 0.024550952 99.006816 21.634184 6625.3164 1.5500145e+09 0.10704939 0.025775111 99.055510 21.514654 6627.8548 1.4687245e+09 0.10516215 0.025647025 99.104205 21.395124 6630.3933 1.4009175e+09 0.10349196 0.025929271 99.152903 21.275594 6632.9318 1.3416060e+09 0.10166387 0.026144080 99.201600 21.156211 6635.4703 1.2797706e+09 0.099767391 0.026470321 99.250298 21.041108 6638.0088 1.2187763e+09 0.098242386 0.025671258 99.298995 20.926006 6640.5473 1.1659638e+09 0.097945942 0.025203687 99.347698 20.807464 6643.0858 1.1182326e+09 0.097245350 0.025205575 99.396402 20.687917 6645.6243 1.0706666e+09 0.095588808 0.025744148 99.448241 20.560677 6648.1628 1.0152837e+09 0.094007116 0.027073263 99.503026 20.426205 6650.7013 9.6213772e+08 0.092853103 0.026415783 99.554721 20.301566 6653.2398 9.1431414e+08 0.092095250 0.027648088 99.603419 20.186464 6655.7783 8.7715052e+08 0.090183292 0.027931803 99.652116 20.070260 6658.3168 8.4661009e+08 0.088402163 0.030622884 99.700813 19.950730 6660.8553 8.1439907e+08 0.086809958 0.032403395 99.749520 19.831185 6663.3938 7.8067263e+08 0.085416425 0.032374092 99.804235 19.701808 6665.9323 7.4260481e+08 0.085198094 0.027019598 99.859021 19.572314 6668.4707 7.0443871e+08 0.084277899 0.027887354 99.907834 19.456940 6671.0092 6.7005061e+08 0.084099553 0.026865480 99.956538 19.341822 6673.5477 6.4507854e+08 0.083421218 0.028278397 100.00203 19.223513 6676.0862 6.2261663e+08 0.080871957 0.031769299 100.04630 19.103984 6678.6247 6.0012444e+08 0.079624058 0.030518772 100.09546 18.979825 6681.1632 5.7367061e+08 0.080454709 0.029782576 100.15024 18.850333 6683.7017 5.4519798e+08 0.080874358 0.032216946 100.20023 18.725392 6686.2402 5.2064432e+08 0.079978927 0.033900839 100.24450 18.605861 6688.7787 5.0138757e+08 0.076593499 0.033964940 100.29085 18.484358 6691.3172 4.7985657e+08 0.075160047 0.032926426 100.34563 18.354866 6693.8557 4.5417012e+08 0.073935161 0.031310536 100.39842 18.228107 6696.3942 4.3610218e+08 0.073468130 0.029839559 100.44269 18.112990 6698.9327 4.1834272e+08 0.071925651 0.031498018 100.48697 17.997872 6701.4712 4.0401663e+08 0.069664910 0.032100782 100.54104 17.869362 6704.0097 3.8484079e+08 0.069536112 0.036182297 100.59582 17.739870 6706.5482 3.6310963e+08 0.069335222 0.039400424 100.64089 17.619581 6709.0866 3.5294834e+08 0.068460493 0.041077431 100.68516 17.500051 6711.6251 3.4050024e+08 0.066244943 0.041403472 100.73312 17.373898 6714.1636 3.2851918e+08 0.063801016 0.047315711 100.78292 17.244405 6716.7021 3.1235154e+08 0.061806588 0.049435532 100.83200 17.124368 6719.2406 2.9845419e+08 0.059455308 0.051141229 100.88070 17.009266 6721.7791 2.8923285e+08 0.059807842 0.050538651 100.92984 16.888425 6724.3176 2.7514441e+08 0.057037651 0.047274413 100.97965 16.758914 6726.8561 2.6023180e+08 0.053744522 0.040959089 101.02946 16.629409 6729.3946 2.4568486e+08 0.053202683 0.040782418 101.07926 16.499917 6731.9331 2.3540992e+08 0.051193118 0.043607049 101.12695 16.375933 6734.4716 2.2711351e+08 0.050568701 0.049325226 101.17122 16.260830 6737.0101 2.1950847e+08 0.052552104 0.054167671 101.21617 16.143943 6739.5486 2.1172940e+08 0.053052100 0.063497900 101.26598 16.014451 6742.0871 2.0530180e+08 0.050652303 0.068822903 101.31578 15.884958 6744.6256 1.9766397e+08 0.045851964 0.078277267 101.36559 15.755466 6747.1641 1.8837309e+08 0.041030216 0.067304684 101.41480 15.627533 6749.7025 1.8025521e+08 0.039350804 0.072085575 101.45907 15.512431 6752.2410 1.7477172e+08 0.035700511 0.073855547 101.50334 15.397328 6754.7795 1.7221148e+08 0.033832737 0.074959882 101.55231 15.270002 6757.3180 1.6395886e+08 0.031129764 0.075774925 101.60211 15.140508 6759.8565 1.5529892e+08 0.032050391 0.076026647 101.64773 15.011000 6762.3950 1.4694201e+08 0.036175626 0.077413652 101.69256 14.881488 6764.9335 1.3954101e+08 0.039202786 0.079528007 101.74154 14.756146 6767.4720 1.3699161e+08 0.037966590 0.081447245 101.79135 14.631635 6770.0105 1.3091144e+08 0.032375733 0.086905160 101.84115 14.503008 6772.5490 1.2521749e+08 0.027586309 0.093062123 101.89096 14.373516 6775.0875 1.1933128e+08 0.022763474 0.099219087 101.94076 14.244024 6777.6260 1.1710712e+08 0.017853646 0.10537605 101.99057 14.114531 6780.1645 1.1516332e+08 0.012921286 0.11153301 102.03633 13.985038 6782.7030 1.1012118e+08 0.0079828078 0.11768998 102.08115 13.855545 6785.2415 1.0427904e+08 0.0030040003 0.12384694 102.12998 13.730051 6787.7800 99536947. -0.0020212174 0.13000390 102.17979 13.605539 6790.3184 97196620. -0.0070486059 0.13616087 102.22563 13.477068 6792.8569 96210919. -0.012061274 0.14231783 102.27045 13.347576 6795.3954 91939713. -0.017152355 0.14847479 102.31920 13.218084 6797.9339 87370518. -0.022292190 0.15463176 102.36900 13.088592 6800.4724 84892409. -0.027380563 0.16078872 102.41992 12.949118 6803.0109 79212048. -0.032655597 0.16694568 102.47112 12.807102 6805.5494 74929708. -0.037927116 0.17310265 102.52092 12.677609 6808.0879 72606355. -0.043119900 0.17925961 102.57065 12.548188 6810.6264 69214202. -0.048469187 0.18541657 102.61549 12.423658 6813.1649 64173122. -0.054150690 0.19157354 102.66032 12.299092 6815.7034 59077395. -0.060169538 0.19773050 102.70514 12.169600 6818.2419 55760594. -0.066365506 0.20388746 102.75001 12.040057 6820.7804 59574788. -0.071650006 0.21004443 102.80687 11.897816 6823.3189 61017053. -0.078321504 0.21620139 102.86086 11.758618 6825.8574 57383095. -0.089770168 0.22235835 102.90569 11.629126 6828.3959 53367038. -0.13508767 0.22851532 102.95202 11.496629 6830.9343 47409134. -0.10936735 0.23467228 103.00324 11.354326 6833.4728 45206315. -0.030031940 0.24082924 103.05141 11.218143