# # 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 = 48.023022 km # Date (UTC) = 2014-01-12T09:56:23.917 # Date (julian) = 2456669.91416571 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6496.9390 6.1031104e+10 0.033774256 0.031360174 -28.685308 50.691383 6499.0146 5.7338231e+10 0.040341968 0.031986079 -28.804587 50.580940 6501.0903 5.3272949e+10 0.047021561 0.032611983 -28.930251 50.464584 6503.1659 4.9539540e+10 0.053952648 0.033237887 -29.047113 50.352888 6505.2416 4.6211718e+10 0.061258091 0.033863791 -29.152995 50.247005 6507.3172 4.3458384e+10 0.069104083 0.034489696 -29.258877 50.141123 6509.3929 4.1160513e+10 0.077600296 0.035115600 -29.360729 50.039270 6511.4685 3.9080103e+10 0.086784912 0.035741504 -29.462539 49.937461 6513.5441 3.6874688e+10 0.096541540 0.036367409 -29.574597 49.825403 6515.6198 3.4436776e+10 0.10676493 0.036993313 -29.695608 49.704393 6517.6954 3.2001945e+10 0.11751096 0.037619217 -29.807652 49.590780 6519.7711 2.9662040e+10 0.12881568 0.038245121 -29.905389 49.488971 6521.8467 2.7717855e+10 0.14086533 0.038871026 -30.003126 49.387162 6523.9223 2.6055781e+10 0.14797952 0.039407714 -30.104649 49.281566 6525.9980 2.4513261e+10 0.15397284 0.039668316 -30.206458 49.175683 6528.0736 2.2988480e+10 0.16106898 0.041500896 -30.315164 49.064835 6530.1493 2.1338278e+10 0.16674464 0.044037677 -30.431520 48.948479 6532.2249 1.9725408e+10 0.17125598 0.046872084 -30.541815 48.835533 6534.3006 1.8270313e+10 0.17355361 0.048028635 -30.639552 48.729652 6536.3762 1.6994549e+10 0.17387633 0.048127096 -30.737289 48.623771 6538.4518 1.5876019e+10 0.17422132 0.049376704 -30.831483 48.517889 6540.5275 1.4777959e+10 0.17315843 0.051103299 -30.925147 48.412006 6542.6031 1.3769256e+10 0.17100392 0.051231218 -31.020499 48.307811 6544.6788 1.2915836e+10 0.16935619 0.052194976 -31.118236 48.206002 6546.7544 1.2123027e+10 0.16748545 0.053085283 -31.215973 48.104193 6548.8301 1.1311819e+10 0.16556879 0.053915527 -31.322637 47.983974 6550.9057 1.0465717e+10 0.16419136 0.055212137 -31.429685 47.862965 6552.9813 9.6369738e+09 0.16324916 0.055339765 -31.525901 47.754200 6555.0570 8.9105197e+09 0.16184910 0.054805491 -31.619580 47.648303 6557.1326 8.3043604e+09 0.16004055 0.053782982 -31.711807 47.543857 6559.2083 7.7392432e+09 0.15778854 0.052363675 -31.801399 47.442048 6561.2839 7.2251594e+09 0.15556604 0.051232781 -31.890991 47.340239 6563.3595 6.7639080e+09 0.15355660 0.049512458 -31.984247 47.234766 6565.4352 6.3562577e+09 0.15166679 0.047824239 -32.077912 47.128883 6567.5108 6.0026174e+09 0.15007861 0.046185270 -32.169769 47.023001 6569.5865 5.6942287e+09 0.14845119 0.044890594 -32.259360 46.917121 6571.6621 5.3901046e+09 0.14682829 0.044322440 -32.348956 46.811235 6573.7378 5.0664257e+09 0.14455488 0.043065453 -32.451195 46.695006 6575.8134 4.7324936e+09 0.14232562 0.041558618 -32.553588 46.578651 6577.8890 4.4113926e+09 0.13986970 0.038823912 -32.641812 46.471089 6579.9647 4.1344242e+09 0.13716773 0.036540171 -32.727332 46.365207 6582.0403 3.9084408e+09 0.13462512 0.035282823 -32.812852 46.259325 6584.1160 3.7030293e+09 0.13237470 0.034452343 -32.898373 46.153444 6586.1916 3.4949616e+09 0.13067076 0.033168819 -32.983894 46.047563 6588.2672 3.3029064e+09 0.12950664 0.033290684 -33.073194 45.941680 6590.3429 3.1234939e+09 0.12763988 0.030424244 -33.162786 45.835798 6592.4185 2.9681757e+09 0.12556665 0.027667007 -33.248525 45.731842 6594.4942 2.8338975e+09 0.12334969 0.025901248 -33.329973 45.630032 6596.5698 2.7021464e+09 0.12083413 0.025724683 -33.411491 45.528152 6598.6455 2.5755005e+09 0.11900045 0.025099003 -33.497011 45.422271 6600.7211 2.4601055e+09 0.11867793 0.026472315 -33.582530 45.316390 6602.7967 2.3334269e+09 0.11777240 0.026836729 -33.672301 45.202008 6604.8724 2.2006142e+09 0.11686535 0.026589266 -33.765386 45.080997 6606.9480 2.0765538e+09 0.11568004 0.025800399 -33.853661 44.966239 6609.0237 1.9550004e+09 0.11263849 0.023712961 -33.935109 44.860358 6611.0993 1.8616449e+09 0.10959225 0.024895129 -34.016557 44.754476 6613.1749 1.7778033e+09 0.10832238 0.023637779 -34.098016 44.648580 6615.2506 1.6961970e+09 0.10669944 0.023259242 -34.179476 44.542684 6617.3262 1.6236476e+09 0.10511096 0.023547410 -34.260929 44.438841 6619.4019 1.5457930e+09 0.10401244 0.024622879 -34.342375 44.337032 6621.4775 1.4747126e+09 0.10257189 0.024931172 -34.423630 44.235031 6623.5532 1.4124790e+09 0.10030633 0.024696762 -34.501006 44.129149 6625.6288 1.3541032e+09 0.098616834 0.026147949 -34.578383 44.023266 6627.7044 1.3001756e+09 0.096512964 0.025588925 -34.655758 43.917384 6629.7801 1.2494237e+09 0.095221474 0.025968064 -34.733132 43.811504 6631.8557 1.1967088e+09 0.093655980 0.026017690 -34.812008 43.703568 6633.9314 1.1371095e+09 0.092433042 0.026314860 -34.900440 43.582557 6636.0070 1.0722550e+09 0.091236812 0.026547032 -34.988866 43.461554 6638.0826 1.0117435e+09 0.090493345 0.025668041 -35.066388 43.355471 6640.1583 9.6197751e+08 0.090546634 0.025251285 -35.143762 43.249590 6642.2339 9.2027572e+08 0.090561005 0.025161269 -35.218972 43.145873 6644.3096 8.8282102e+08 0.089510683 0.025377064 -35.292275 43.044064 6646.3852 8.4197886e+08 0.088481484 0.026119548 -35.365888 42.941945 6648.4609 8.0343042e+08 0.087383373 0.027272784 -35.443262 42.836062 6650.5365 7.6924358e+08 0.086728857 0.026378057 -35.520636 42.730180 6652.6121 7.3592134e+08 0.086158187 0.027418946 -35.595484 42.624299 6654.6878 7.0830245e+08 0.084959438 0.027743223 -35.668787 42.518418 6656.7634 6.7936619e+08 0.082919058 0.028693471 -35.743817 42.410041 6658.8391 6.4300412e+08 0.081298439 0.031549181 -35.827593 42.289030 6660.9147 6.0798550e+08 0.079890251 0.032457424 -35.911199 42.168333 6662.9904 5.7482776e+08 0.078615913 0.032488626 -35.984502 42.066524 6665.0660 5.4837221e+08 0.077784724 0.028438999 -36.057805 41.964714 6667.1416 5.2786493e+08 0.077050994 0.027155482 -36.128829 41.860612 6669.2173 5.0725041e+08 0.075634301 0.028132545 -36.198069 41.754715 6671.2929 4.8694642e+08 0.075421980 0.026869523 -36.267738 41.648820 6673.3686 4.6640496e+08 0.074764872 0.028010426 -36.341041 41.542940 6675.4442 4.4878512e+08 0.072913348 0.030649167 -36.414343 41.437059 6677.5198 4.3002432e+08 0.071398504 0.031619206 -36.491429 41.321343 6679.5955 4.1063506e+08 0.071323502 0.029775689 -36.570552 41.200332 6681.6711 3.8943680e+08 0.072259353 0.030172237 -36.644714 41.086908 6683.7468 3.6629844e+08 0.072695786 0.032282979 -36.713944 40.981027 6685.8224 3.4827161e+08 0.072327141 0.033573506 -36.783173 40.875333 6687.8981 3.3347231e+08 0.070120347 0.033842047 -36.852405 40.773523 6689.9737 3.1815047e+08 0.068212598 0.033139543 -36.921636 40.671713 6692.0493 3.0876042e+08 0.067133282 0.032708037 -36.988463 40.567499 6694.1250 2.9598566e+08 0.066244414 0.031085863 -37.053621 40.461617 6696.2006 2.8469491e+08 0.066084986 0.029759139 -37.120660 40.353697 6698.2763 2.7409086e+08 0.065157326 0.030597018 -37.199781 40.232687 6700.3519 2.5885740e+08 0.063579216 0.030928735 -37.278893 40.111687 6702.4275 2.5119474e+08 0.062388150 0.033218127 -37.344253 40.005586 6704.5032 2.4380014e+08 0.062588383 0.036424645 -37.409411 39.899704 6706.5788 2.3296629e+08 0.062370685 0.039453811 -37.474569 39.795982 6708.6545 2.2788833e+08 0.061794478 0.040756274 -37.539727 39.694172 6710.7301 2.1846705e+08 0.060268710 0.040639405 -37.605584 39.590922 6712.8058 2.0801657e+08 0.058309157 0.043325976 -37.680051 39.469913 6714.8814 1.9774802e+08 0.056348232 0.047369672 -37.754519 39.348904 6716.9570 1.8410994e+08 0.054438318 0.049810990 -37.820362 39.241910 6719.0327 1.7695423e+08 0.052189190 0.051338790 -37.885520 39.136029 6721.1083 1.7291752e+08 0.052705397 0.050336537 -37.950678 39.030147 6723.1840 1.6910829e+08 0.051647513 0.049471544 -38.015838 38.924265 6725.2596 1.6622611e+08 0.047633620 0.041413857 -38.081139 38.818223 6727.3352 1.5841684e+08 0.046450241 0.040513740 -38.155607 38.701867 6729.4109 1.4969463e+08 0.045965098 0.040771559 -38.230074 38.585511 6731.4865 1.4188498e+08 0.044391054 0.042718312 -38.292943 38.478233 6733.5622 1.3703687e+08 0.043413234 0.046976509 -38.354028 38.372352 6735.6378 1.3166200e+08 0.044544788 0.049970520 -38.418702 38.260250 6737.7135 1.2702757e+08 0.046001323 0.056408299 -38.488516 38.139239 6739.7891 1.1906325e+08 0.046185757 0.063792258 -38.556041 38.023265 6741.8647 1.1464152e+08 0.044333809 0.068224982 -38.617135 37.921441 6743.9404 1.1308011e+08 0.039800677 0.077391232 -38.678228 37.819617 6746.0160 1.0678823e+08 0.038772805 0.078800980 -38.746363 37.702303 6748.0917 1.0183410e+08 0.034845489 0.067499157 -38.816177 37.581294 6750.1673 95014308. 0.032282596 0.072289816 -38.880241 37.470250 6752.2429 90627179. 0.029644236 0.073853338 -38.941327 37.364367 6754.3186 87689965. 0.028502183 0.075701137 -39.004187 37.256357 6756.3942 86307601. 0.026037992 0.075181329 -39.073999 37.140001 6758.4699 81007534. 0.026219374 0.074698935 -39.143113 37.024217 6760.5455 79004931. 0.026731737 0.077101547 -39.200126 36.918336 6762.6212 76319642. 0.031381016 0.077048865 -39.257139 36.812454 6764.6968 71624703. 0.034093568 0.079516667 -39.321821 36.700298 6766.7724 66930158. 0.034620169 0.081461026 -39.391635 36.583942 6768.8481 62768707. 0.030441314 0.083907632 -39.459352 36.465490 6770.9237 63322128. 0.026652281 0.089120142 -39.524511 36.344479 6772.9994 60703646. 0.023019879 0.094154486 -39.587211 36.228035 6775.0750 58839953. 0.019380889 0.099188830 -39.644224 36.122154 6777.1507 56797250. 0.015244378 0.10422317 -39.701237 36.016273 6779.2263 53696527. 0.0092759737 0.10925752 -39.765144 35.901527 6781.3019 54373939. 0.0073363841 0.11429186 -39.830303 35.785170 6783.3776 49923978. 0.0075851624 0.11932621 -39.895464 35.665567