# # 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 = 49.672158 km # Date (UTC) = 2011-12-07T09:24:05.089 # Date (julian) = 2455902.89172557 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6521.1692 5.1072499e+10 0.14924222 0.038666737 -25.562985 48.637015 6523.1527 4.7110271e+10 0.15583340 0.039216947 -25.649471 48.550529 6525.1361 4.3515732e+10 0.16062276 0.039766686 -25.738031 48.460802 6527.1195 3.9840685e+10 0.16380539 0.040803214 -25.831426 48.363517 6529.1029 3.6321755e+10 0.16539737 0.042399686 -25.924820 48.266231 6531.0863 3.3097687e+10 0.16693430 0.045354301 -26.010634 48.176842 6533.0697 3.0534467e+10 0.16925653 0.047549217 -26.093650 48.090367 6535.0531 2.8404003e+10 0.16979608 0.048201246 -26.176666 48.003892 6537.0365 2.6357959e+10 0.16941594 0.048702458 -26.268392 47.908343 6539.0200 2.4278038e+10 0.16859283 0.049667793 -26.361786 47.811058 6541.0034 2.2227913e+10 0.16782862 0.051325433 -26.452382 47.716687 6542.9868 2.0424580e+10 0.16705437 0.051376879 -26.535398 47.630212 6544.9702 1.8923274e+10 0.16656270 0.052431396 -26.618414 47.543738 6546.9536 1.7600266e+10 0.16547638 0.053249200 -26.703885 47.453170 6548.9370 1.6314246e+10 0.16406845 0.053947476 -26.793387 47.355885 6550.9204 1.5127612e+10 0.16328614 0.055215831 -26.882890 47.258599 6552.9039 1.4082986e+10 0.16272916 0.055359266 -26.964356 47.170049 6554.8873 1.3270580e+10 0.16135350 0.054850999 -27.043923 47.083562 6556.8707 1.2538972e+10 0.15936572 0.053885118 -27.123491 46.997076 6558.8541 1.1774603e+10 0.15696873 0.052511506 -27.212181 46.900674 6560.8375 1.0975287e+10 0.15468080 0.051519182 -27.301684 46.803389 6562.8209 1.0211535e+10 0.15296166 0.050098760 -27.386516 46.709870 6564.8043 9.5967539e+09 0.15114551 0.048407069 -27.462614 46.623395 6566.7878 9.1150375e+09 0.14944258 0.046737253 -27.538711 46.536921 6568.7712 8.6786629e+09 0.14791664 0.045062774 -27.620941 46.445501 6570.7546 8.1921212e+09 0.14694504 0.044604935 -27.710443 46.348215 6572.7380 7.6842011e+09 0.14585123 0.043807524 -27.799945 46.250930 6574.7214 7.2046812e+09 0.14430105 0.042508513 -27.877549 46.163241 6576.7048 6.8163636e+09 0.14246064 0.040560125 -27.953647 46.076766 6578.6882 6.4862211e+09 0.14018704 0.037562806 -28.029774 45.990237 6580.6717 6.1483054e+09 0.13825369 0.035900050 -28.111446 45.893042 6582.6551 5.7909932e+09 0.13669576 0.035115533 -28.193166 45.795757 6584.6385 5.4369938e+09 0.13494343 0.034167707 -28.272489 45.703081 6586.6219 5.1409408e+09 0.13301799 0.033163257 -28.348597 45.616595 6588.6053 4.8874584e+09 0.13120359 0.033177786 -28.424705 45.530109 6590.5887 4.6489366e+09 0.12878425 0.029966954 -28.503822 45.437832 6592.5721 4.3876007e+09 0.12642968 0.027517809 -28.585542 45.340546 6594.5555 4.1206853e+09 0.12390774 0.025867554 -28.667262 45.243261 6596.5390 3.8889224e+09 0.12093686 0.025724823 -28.740205 45.156424 6598.5224 3.7034421e+09 0.11847463 0.025157765 -28.812844 45.069949 6600.5058 3.5540622e+09 0.11738235 0.026029685 -28.886168 44.982658 6602.4892 3.3963433e+09 0.11616894 0.027099166 -28.967888 44.885373 6604.4726 3.2189820e+09 0.11495661 0.026351901 -29.049608 44.788088 6606.4560 3.0445764e+09 0.11448042 0.026684490 -29.124986 44.696269 6608.4394 2.8973434e+09 0.11225908 0.023720753 -29.194166 44.609795 6610.4229 2.7769325e+09 0.10961983 0.024407011 -29.263346 44.523320 6612.4063 2.6570639e+09 0.10801660 0.024017200 -29.340242 44.430191 6614.3897 2.5350265e+09 0.10709140 0.023672014 -29.421973 44.332891 6616.3731 2.4057655e+09 0.10578830 0.023340857 -29.503528 44.235592 6618.3565 2.2799969e+09 0.10531080 0.024040006 -29.581357 44.138306 6620.3399 2.1629091e+09 0.10470037 0.024876739 -29.659185 44.041021 6622.3233 2.0536269e+09 0.10349187 0.024671930 -29.732901 43.947231 6624.3068 1.9697560e+09 0.10168592 0.025026514 -29.802080 43.857297 6626.2902 1.8969967e+09 0.10019724 0.026221202 -29.871259 43.767362 6628.2736 1.8265095e+09 0.098513993 0.025814172 -29.943220 43.673131 6630.2570 1.7443495e+09 0.096965114 0.025928935 -30.017157 43.575845 6632.2404 1.6581783e+09 0.095227150 0.026061172 -30.091021 43.478726 6634.2238 1.5807276e+09 0.093587921 0.026343169 -30.160204 43.392245 6636.2072 1.5175213e+09 0.091831976 0.026469274 -30.229384 43.305771 6638.1907 1.4637672e+09 0.090465465 0.025663336 -30.299152 43.217958 6640.1741 1.4066481e+09 0.090037686 0.025249355 -30.373089 43.120672 6642.1575 1.3460231e+09 0.089585771 0.025158140 -30.447026 43.023386 6644.1409 1.2784766e+09 0.088219726 0.025358834 -30.520969 42.926092 6646.1243 1.2081767e+09 0.087098411 0.025984492 -30.594917 42.828792 6648.1077 1.1423009e+09 0.086186809 0.027036393 -30.668865 42.731492 6650.0911 1.0895364e+09 0.085618006 0.026276100 -30.734712 42.644852 6652.0745 1.0494291e+09 0.085150945 0.027271032 -30.800433 42.558377 6654.0580 1.0151226e+09 0.084503861 0.028011533 -30.866559 42.470891 6656.0414 9.7967423e+08 0.082852360 0.028059733 -30.936605 42.373605 6658.0248 9.3616687e+08 0.081626412 0.030105043 -31.006650 42.276320 6660.0082 8.9416154e+08 0.080356491 0.031633453 -31.078734 42.179034 6661.9916 8.5141585e+08 0.078989525 0.033040001 -31.152671 42.081748 6663.9750 8.0964984e+08 0.077754628 0.032213008 -31.226608 41.984462 6665.9584 7.7644309e+08 0.077852955 0.026976686 -31.289405 41.897492 6667.9419 7.4809156e+08 0.077127612 0.027449418 -31.351667 41.811017 6669.9253 7.2593015e+08 0.076385170 0.027405384 -31.414420 41.723615 6671.9087 6.9984593e+08 0.076037899 0.026878298 -31.484466 41.622439 6673.8921 6.7134068e+08 0.075229863 0.028793417 -31.554511 41.521263 6675.8755 6.4345138e+08 0.073073967 0.031475286 -31.624562 41.421999 6677.8589 6.1543734e+08 0.071909199 0.031137164 -31.694618 41.324699 6679.8423 5.9076299e+08 0.071804363 0.029571699 -31.764674 41.227399 6681.8258 5.6443629e+08 0.072391408 0.030290864 -31.831125 41.130112 6683.8092 5.3372940e+08 0.072568531 0.032374426 -31.897279 41.032827 6685.7926 5.0904689e+08 0.072012284 0.033541999 -31.962054 40.939370 6687.7760 4.9038190e+08 0.069717852 0.033910120 -32.024316 40.852896 6689.7594 4.7581411e+08 0.067543697 0.033332434 -32.086577 40.766421 6691.7428 4.6175045e+08 0.066528873 0.032826006 -32.150642 40.674938 6693.7262 4.4269889e+08 0.065735183 0.031354945 -32.216797 40.577653 6695.7097 4.2240406e+08 0.065663742 0.029729119 -32.282952 40.480367 6697.6931 4.0601275e+08 0.065073149 0.030178974 -32.349105 40.383082 6699.6765 3.9121517e+08 0.063748279 0.030966236 -32.415259 40.285796 6701.6599 3.7694079e+08 0.062144407 0.032377695 -32.481413 40.188511 6703.6433 3.6028245e+08 0.062355700 0.035284991 -32.547568 40.091226 6705.6267 3.4615742e+08 0.062454307 0.037782787 -32.613722 39.993940 6707.6101 3.3431187e+08 0.062130439 0.040099425 -32.679876 39.896654 6709.5935 3.1952614e+08 0.061300138 0.040755018 -32.746030 39.799368 6711.5770 3.0922209e+08 0.059457316 0.041348656 -32.811467 39.702082 6713.5604 2.9327324e+08 0.057578288 0.045713378 -32.873730 39.604797 6715.5438 2.8084242e+08 0.055903806 0.047934759 -32.935993 39.507512 6717.5272 2.6955258e+08 0.053977440 0.049841659 -33.000653 39.410217 6719.5106 2.5845358e+08 0.052315258 0.050884717 -33.066817 39.312917 6721.4940 2.5063988e+08 0.052549205 0.050452752 -33.132806 39.215618 6723.4774 2.4179530e+08 0.051082361 0.049635222 -33.195069 39.118332 6725.4609 2.3367341e+08 0.047103748 0.041288145 -33.257332 39.021047 6727.4443 2.2291177e+08 0.045912651 0.040368490 -33.319594 38.923762 6729.4277 2.1492527e+08 0.045182297 0.040760365 -33.381857 38.826476 6731.4111 2.0561969e+08 0.043497521 0.042568187 -33.444120 38.729191 6733.3945 1.9769607e+08 0.042452762 0.046066228 -33.506382 38.631905 6735.3779 1.8812772e+08 0.043152056 0.049694629 -33.568645 38.534619 6737.3613 1.7835523e+08 0.044629758 0.055286622 -33.630908 38.437333 6739.3448 1.7317138e+08 0.045054261 0.063248464 -33.693171 38.340047 6741.3282 1.6882210e+08 0.043711309 0.066694643 -33.755434 38.242762 6743.3116 1.6410293e+08 0.040072325 0.073149357 -33.817696 38.145477 6745.2950 1.5643988e+08 0.037662288 0.078690900 -33.879959 38.048191 6747.2784 1.4785481e+08 0.033234593 0.067265316 -33.941458 37.950906 6749.2618 1.4192686e+08 0.032731700 0.072206246 -33.999830 37.853620 6751.2452 1.3863465e+08 0.030017583 0.073815358 -34.058201 37.756335 6753.2286 1.3604321e+08 0.027797694 0.073717242 -34.119011 37.659049 6755.2121 1.3339271e+08 0.026057828 0.074512369 -34.181274 37.561763 6757.1955 1.2891615e+08 0.023918706 0.076146834 -34.243316 37.464477 6759.1789 1.2443257e+08 0.024911751 0.075863124 -34.301686 37.367192 6761.1623 1.2060503e+08 0.025783056 0.077981634 -34.360057 37.269906 6763.1457 1.1779046e+08 0.030629248 0.076881553 -34.422490 37.165851 6765.1291 1.1194563e+08 0.032858539 0.079554766 -34.489202 37.054665 6767.1125 1.0490100e+08 0.032483372 0.081849743 -34.553926 36.946792 6769.0960 98142086. 0.028017055 0.084687006 -34.612305 36.849492 6771.0794 93406167. 0.024472861 0.089497656 -34.670685 36.752192 6773.0628 90979696. 0.020956225 0.094308307 -34.729059 36.654902 6775.0462 87968587. 0.017432599 0.099118957 -34.787431 36.557616 6777.0296 83840933. 0.013899219 0.10392961 -34.845803 36.460331 6779.0130 81082040. 0.010391014 0.10874026 -34.904175 36.363045 6780.9964 81683594. 0.0069382809 0.11355091 -34.962547 36.265759 6782.9799 81905868. 0.0034616749 0.11836156 -35.022980 36.161111 6784.9633 78942852. -0.00010680743 0.12317221 -35.085244 36.049925 6786.9467 73354013. -0.0037983202 0.12798286 -35.146413 35.942647 6788.9301 67970536. -0.0076041586 0.13279351 -35.204783 35.845362 6790.9135 67264713. -0.011415433 0.13760416 -35.263154 35.748077 6792.8969 67327546. -0.015416647 0.14241481 -35.324294 35.640902 6794.8803 62508300. -0.020131007 0.14722546 -35.386558 35.529717 6796.8638 59064945. -0.026393387 0.15203611 -35.445219 35.424966 6798.8472 55122098. -0.045856396 0.15684676 -35.499700 35.327680 6800.8306 54167005. -0.036780248 0.16165741 -35.554181 35.230395 6802.8140 54234057. -0.012741364 0.16646806 -35.615613 35.120693