# # 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 = 32.726726 km # Date (UTC) = 2017-01-12T14:15:02.152 # Date (julian) = 2457766.09377491 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6524.8006 2.6702504e+10 0.17399727 0.039711393 -94.165216 49.851771 6526.6113 2.4695664e+10 0.17658532 0.040308917 -94.254026 49.759408 6528.4219 2.2792459e+10 0.17911161 0.041777153 -94.342836 49.667159 6530.2325 2.0898813e+10 0.18152093 0.044154167 -94.431645 49.578349 6532.0431 1.9076686e+10 0.18309941 0.046720192 -94.520455 49.489540 6533.8537 1.7384716e+10 0.18279742 0.047882387 -94.611137 49.397096 6535.6643 1.5817678e+10 0.18189595 0.047936117 -94.708578 49.291538 6537.4749 1.4406080e+10 0.18190919 0.048909136 -94.806020 49.185980 6539.2855 1.3137293e+10 0.18072480 0.049989276 -94.896964 49.093038 6541.0962 1.2014950e+10 0.17894811 0.051295344 -94.985787 49.004215 6542.9068 1.1017760e+10 0.17726131 0.051346499 -95.074610 48.915391 6544.7174 1.0147544e+10 0.17544091 0.052226305 -95.156746 48.823245 6546.5280 9.3709672e+09 0.17287026 0.052898984 -95.238449 48.730883 6548.3386 8.6589332e+09 0.17065838 0.053768767 -95.320594 48.638963 6550.1492 8.0047357e+09 0.16860767 0.055022724 -95.405854 48.550153 6551.9598 7.4008351e+09 0.16596325 0.055572669 -95.491113 48.461344 6553.7705 6.8404071e+09 0.16264606 0.054947772 -95.575273 48.371435 6555.5811 6.3261841e+09 0.15976546 0.054365132 -95.656976 48.279072 6557.3917 5.8550185e+09 0.15697073 0.053620603 -95.738680 48.186709 6559.2023 5.4289758e+09 0.15349327 0.052364349 -95.820384 48.096103 6561.0129 5.0446702e+09 0.15005715 0.051366323 -95.902090 48.007293 6562.8235 4.6943849e+09 0.14745490 0.050096298 -95.983796 47.918483 6564.6341 4.3699660e+09 0.14466400 0.048484210 -96.065501 47.827261 6566.4447 4.0657175e+09 0.14213296 0.046931295 -96.147204 47.734899 6568.2554 3.7850424e+09 0.14015199 0.045536931 -96.228908 47.642538 6570.0660 3.5213139e+09 0.13844949 0.044890183 -96.320703 47.538769 6571.8766 3.2746531e+09 0.13632929 0.044263864 -96.414084 47.433210 6573.6872 3.0440997e+09 0.13376787 0.043106025 -96.501355 47.334370 6575.4978 2.8300128e+09 0.13150811 0.041875252 -96.579508 47.245560 6577.3084 2.6368224e+09 0.12896601 0.039735920 -96.657661 47.156750 6579.1190 2.4674012e+09 0.12581593 0.037005060 -96.735815 47.065858 6580.9296 2.3165451e+09 0.12311920 0.035661627 -96.813967 46.973497 6582.7403 2.1812660e+09 0.12086400 0.035092350 -96.892120 46.881135 6584.5509 2.0558286e+09 0.11822192 0.034215431 -96.967533 46.788773 6586.3615 1.9408665e+09 0.11551735 0.033166623 -97.042133 46.696409 6588.1721 1.8323424e+09 0.11329200 0.033322458 -97.116733 46.604046 6589.9827 1.7300756e+09 0.11060283 0.031096370 -97.194739 46.515068 6591.7933 1.6339200e+09 0.10744424 0.028306738 -97.272901 46.426245 6593.6039 1.5421127e+09 0.10465055 0.026540743 -97.350559 46.336921 6595.4145 1.4559722e+09 0.10176872 0.025666561 -97.425161 46.244560 6597.2252 1.3751387e+09 0.099180670 0.025651675 -97.499764 46.152199 6599.0358 1.2982729e+09 0.097102937 0.024931882 -97.574366 46.059837 6600.8464 1.2260111e+09 0.096891929 0.026729892 -97.648966 45.967475 6602.6570 1.1562379e+09 0.096010860 0.026955975 -97.723566 45.875114 6604.4676 1.0910502e+09 0.094976119 0.026348930 -97.798165 45.784569 6606.2782 1.0322356e+09 0.094475276 0.027003999 -97.872765 45.695759 6608.0888 9.7694195e+08 0.092520891 0.023730023 -97.947365 45.606950 6609.8995 9.2302773e+08 0.090070685 0.023973111 -98.019490 45.515665 6611.7101 8.6909527e+08 0.087918034 0.024505644 -98.090537 45.423302 6613.5207 8.1872095e+08 0.087168110 0.023764629 -98.161584 45.330939 6615.3313 7.6894919e+08 0.086096944 0.023261725 -98.241582 45.226944 6617.1419 7.2320272e+08 0.085093913 0.023486297 -98.322783 45.121385 6618.9525 6.8005495e+08 0.084486619 0.024490060 -98.399735 45.022836 6620.7631 6.3927288e+08 0.083894766 0.025013116 -98.470781 44.934026 6622.5737 6.0161002e+08 0.082737423 0.024605281 -98.541828 44.845216 6624.3844 5.6927729e+08 0.081220814 0.025068054 -98.612875 44.754262 6626.1950 5.4057801e+08 0.080060163 0.026342495 -98.683922 44.661899 6628.0056 5.1420876e+08 0.078644506 0.025705361 -98.754968 44.569537 6629.8162 4.8775241e+08 0.077457215 0.025961534 -98.823215 44.477175 6631.6268 4.6498696e+08 0.075871057 0.025994437 -98.890712 44.384814 6633.4374 4.4261196e+08 0.074726865 0.026228622 -98.958208 44.292452 6635.2480 4.2240775e+08 0.073579020 0.026436984 -99.029163 44.200089 6637.0586 4.0183645e+08 0.072448902 0.026132688 -99.100212 44.107727 6638.8693 3.8242871e+08 0.071697914 0.025633771 -99.170700 44.015925 6640.6799 3.6514315e+08 0.072469656 0.025187468 -99.238204 43.927101 6642.4905 3.4725452e+08 0.072590176 0.025171768 -99.305708 43.838278 6644.3011 3.3128454e+08 0.071976119 0.025376148 -99.373209 43.748238 6646.1117 3.1589688e+08 0.071429976 0.025977973 -99.440705 43.655876 6647.9223 3.0086040e+08 0.070967222 0.026923388 -99.508201 43.563515 6649.7329 2.8633270e+08 0.070526092 0.026623369 -99.573818 43.471153 6651.5436 2.7199726e+08 0.070381429 0.026900719 -99.637761 43.378790 6653.3542 2.5761077e+08 0.070289064 0.027706485 -99.701705 43.286427 6655.1648 2.4373972e+08 0.069447320 0.027678302 -99.775068 43.187542 6656.9754 2.2977240e+08 0.068088616 0.028879511 -99.852209 43.086043 6658.7860 2.1600654e+08 0.067076475 0.031455071 -99.926039 42.986836 6660.5966 2.0226936e+08 0.066269000 0.032168293 -99.989979 42.894475 6662.4072 1.9011950e+08 0.065374464 0.032815792 -100.05392 42.802113 6664.2178 1.7877084e+08 0.064523746 0.031409015 -100.11786 42.709752 6666.0285 1.6770154e+08 0.064799848 0.026914140 -100.18180 42.617390 6667.8391 1.5742402e+08 0.064377446 0.027411662 -100.24575 42.525028 6669.6497 1.4689977e+08 0.063827812 0.027688435 -100.30969 42.432665 6671.4603 1.3675786e+08 0.063890097 0.026871908 -100.37363 42.340302 6673.2709 1.2620976e+08 0.063633763 0.027864378 -100.43758 42.247940 6675.0815 1.1581757e+08 0.062414890 0.029954497 -100.49866 42.158440 6676.8921 1.0539758e+08 0.060688517 0.032288698 -100.55905 42.069630 6678.7027 95359544. 0.060329778 0.030466588 -100.61947 41.980793 6680.5134 85409681. 0.061233519 0.029552272 -100.69241 41.875417 6682.3240 77588947. 0.061980237 0.030672069 -100.76549 41.769859 6684.1346 70205937. 0.062249854 0.032660921 -100.83187 41.671263 6685.9452 65214710. 0.061938009 0.033703199 -100.89226 41.578900 6687.7558 58921261. 0.060071453 0.033921377 -100.95265 41.486537 6689.5664 55606145. 0.058174244 0.033506152 -101.01304 41.396706 6691.3770 51856764. 0.057431410 0.032912307 -101.07343 41.307896 6693.1876 48129356. 0.056816053 0.031539714 -101.13382 41.219087 6694.9983 45865625. 0.056417507 0.029861910 -101.19422 41.127076 6696.8089 44589530. 0.055983525 0.030011857 -101.25462 41.034701 6698.6195 42587455. 0.054999835 0.031068136 -101.31573 40.941230 6700.4301 41223719. 0.053546956 0.030986736 -101.38475 40.835671 6702.2407 39600380. 0.052355008 0.033068941 -101.45378 40.730111 6704.0513 39594186. 0.052555928 0.036202757 -101.51745 40.634936 6705.8619 37575548. 0.052369331 0.038200961 -101.57784 40.546127 6707.6726 38997898. 0.051951346 0.040090484 -101.63823 40.457317 6709.4832 40100486. 0.050935483 0.040825226 -101.69576 40.365648 6711.2938 40818985. 0.048924171 0.041026472 -101.75259 40.273286 6713.1044 41667091. 0.046577888 0.044064187 -101.80944 40.180901 6714.9150 42477126. 0.043384829 0.047372199 -101.87431 40.075496 6716.7256 43006271. 0.033813213 0.049470128 -101.93927 39.969936 6718.5362 43301812. 0.036770164 0.050647553 -101.99995 39.873203 6720.3468 42283396. 0.043300397 0.050379578 -102.05679 39.784393 6722.1575 40595928. 0.049011219 0.050410547 -102.11362 39.695583 6723.9681 38396027. 0.051086381 0.049908853 -102.17624 39.594850 6725.7787 37134114. 0.050347206 0.041089614 -102.24120 39.489292