# # 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 = 49.488895 km # Date (UTC) = 2014-12-22T09:52:54.998 # Date (julian) = 2457013.91174766 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6493.0363 6.0828049e+10 0.025513035 0.030183336 -28.216000 49.881998 6495.2030 5.6930880e+10 0.031645413 0.030836678 -28.318522 49.791313 6497.3696 5.2872696e+10 0.037613163 0.031490021 -28.420542 49.700630 6499.5362 4.9276993e+10 0.043541391 0.032143363 -28.521726 49.609110 6501.7029 4.5907404e+10 0.049572175 0.032796705 -28.619967 49.514648 6503.8695 4.3094676e+10 0.055927389 0.033450048 -28.718209 49.420185 6506.0361 4.0406912e+10 0.062667965 0.034103390 -28.816450 49.327893 6508.2028 3.7856264e+10 0.069973902 0.034756733 -28.914692 49.237208 6510.3694 3.5495045e+10 0.078035542 0.035410075 -29.012933 49.146523 6512.5360 3.3281011e+10 0.086935781 0.036063417 -29.111186 49.055829 6514.7027 3.1215148e+10 0.096835053 0.036716760 -29.209441 48.965133 6516.8693 2.9270678e+10 0.10770689 0.037370102 -29.307691 48.874441 6519.0359 2.7469285e+10 0.11963492 0.038023445 -29.405933 48.783756 6521.2026 2.5915145e+10 0.13276124 0.038676787 -29.504174 48.693071 6523.3692 2.3874443e+10 0.14227434 0.039270618 -29.600015 48.602386 6525.5358 2.2124322e+10 0.15011013 0.039721061 -29.694478 48.511701 6527.7025 2.0601634e+10 0.15802668 0.041226469 -29.788940 48.421016 6529.8691 1.9347990e+10 0.16547884 0.043620181 -29.883403 48.330333 6532.0357 1.8498362e+10 0.17144170 0.046714040 -29.977866 48.239649 6534.2024 1.7328267e+10 0.17392050 0.048001166 -30.072333 48.148961 6536.3690 1.6231179e+10 0.17390987 0.048120652 -30.166808 48.058264 6538.5356 1.5152858e+10 0.17362261 0.049417504 -30.261284 47.967567 6540.7023 1.4123706e+10 0.17222353 0.051185869 -30.355750 47.874249 6542.8689 1.3172471e+10 0.17025097 0.051332119 -30.450213 47.779786 6545.0355 1.2343451e+10 0.16886542 0.052455885 -30.544489 47.685511 6547.2022 1.1599815e+10 0.16700459 0.053364243 -30.635173 47.594827 6549.3688 1.0892338e+10 0.16524228 0.054342110 -30.725857 47.504144 6551.5354 1.0198866e+10 0.16400531 0.055423694 -30.816546 47.413455 6553.7021 9.5521665e+09 0.16243819 0.054982151 -30.907242 47.322758 6555.8687 9.0095770e+09 0.16071150 0.054123455 -30.997939 47.232061 6558.0353 8.5230215e+09 0.15939125 0.053209203 -31.085766 47.141374 6560.2020 8.0663762e+09 0.15738640 0.052092218 -31.172672 47.050691 6562.3686 7.6493031e+09 0.15512833 0.050529175 -31.259994 46.959591 6564.5352 7.2378122e+09 0.15289633 0.048529034 -31.350678 46.865128 6566.7019 6.8540578e+09 0.15111435 0.046785846 -31.441362 46.770665 6568.8685 6.4847928e+09 0.14939724 0.044973313 -31.530294 46.677954 6571.0351 6.1387027e+09 0.14807524 0.044493683 -31.617200 46.587269 6573.2018 5.8141323e+09 0.14636153 0.043495578 -31.704105 46.496585 6575.3684 5.5055086e+09 0.14412372 0.042005098 -31.787933 46.405891 6577.5350 5.2148475e+09 0.14147379 0.039379984 -31.871072 46.315195 6579.7017 4.9397344e+09 0.13856296 0.036684767 -31.954854 46.223856 6581.8683 4.6871227e+09 0.13606933 0.035333680 -32.041759 46.129393 6584.0349 4.4712625e+09 0.13379043 0.034496489 -32.128664 46.034931 6586.2016 4.2466766e+09 0.13204677 0.033168691 -32.219038 45.936504 6588.3682 3.9844938e+09 0.13095507 0.033256974 -32.312558 45.834482 6590.5348 3.7272299e+09 0.12915693 0.030067221 -32.404292 45.734408 6592.7015 3.4881591e+09 0.12740065 0.027392203 -32.487419 45.643724 6594.8681 3.3005330e+09 0.12537052 0.025695987 -32.570547 45.553039 6597.0347 3.1572042e+09 0.12293125 0.025711772 -32.653674 45.460369 6599.2014 3.0061159e+09 0.12137183 0.024941840 -32.736802 45.365906 6601.3680 2.8666380e+09 0.12134216 0.027218989 -32.819930 45.271443 6603.5346 2.7324531e+09 0.12012645 0.026346783 -32.899746 45.180292 6605.7012 2.5979202e+09 0.11960850 0.027253335 -32.979104 45.089596 6607.8679 2.4755408e+09 0.11755262 0.023993256 -33.059340 44.998903 6610.0345 2.3572619e+09 0.11450045 0.024035956 -33.142466 44.908218 6612.2011 2.2475006e+09 0.11205764 0.024170462 -33.225592 44.817533 6614.3678 2.1426899e+09 0.11080185 0.023687106 -33.306505 44.724634 6616.5344 2.0453915e+09 0.10904657 0.023366175 -33.385855 44.630172 6618.7010 1.9523624e+09 0.10801197 0.024300169 -33.465205 44.535709 6620.8677 1.8706858e+09 0.10676994 0.025046806 -33.541002 44.444797 6623.0343 1.7940802e+09 0.10480534 0.024504538 -33.616571 44.354113 6625.2009 1.7181569e+09 0.10279696 0.025637392 -33.693251 44.262319 6627.3676 1.6429542e+09 0.10032380 0.025458800 -33.772612 44.167844 6629.5342 1.5768143e+09 0.098841072 0.026012518 -33.851972 44.073368 6631.7008 1.5103015e+09 0.097053826 0.026001957 -33.928881 43.981345 6633.8675 1.4473634e+09 0.095738673 0.026303705 -34.004451 43.890660 6636.0341 1.3892472e+09 0.094356630 0.026536507 -34.080081 43.799904 6638.2007 1.3274484e+09 0.093474357 0.025662896 -34.165041 43.697951 6640.3674 1.2688728e+09 0.093620395 0.025225703 -34.250058 43.595930 6642.5340 1.2057721e+09 0.093595003 0.025173549 -34.328955 43.498806 6644.7006 1.1465417e+09 0.092655593 0.025419330 -34.404526 43.404343 6646.8673 1.0986295e+09 0.091472705 0.026369076 -34.480096 43.309908 6649.0339 1.0523069e+09 0.090192482 0.027586949 -34.555677 43.219189 6651.2005 1.0114163e+09 0.089735814 0.026637850 -34.631257 43.128492 6653.3672 9.7094731e+08 0.089132641 0.027713126 -34.706834 43.036458 6655.5338 9.3557587e+08 0.087428925 0.027830785 -34.782404 42.941995 6657.7004 9.0166757e+08 0.085579494 0.029713597 -34.857975 42.847532 6659.8671 8.6826488e+08 0.083903851 0.031653726 -34.930868 42.755747 6662.0337 8.4078961e+08 0.082097740 0.033025361 -35.002659 42.665063 6664.2003 8.1072475e+08 0.080570852 0.031473065 -35.075007 42.573677 6666.3670 7.7985292e+08 0.080262647 0.026980104 -35.155773 42.471655 6668.5336 7.4005731e+08 0.079031536 0.027942975 -35.236540 42.369633 6670.7002 6.9971495e+08 0.078623458 0.027004225 -35.310939 42.272974 6672.8669 6.6658977e+08 0.077992271 0.027382052 -35.382731 42.178512 6675.0335 6.3506148e+08 0.076238214 0.029862524 -35.454524 42.084286 6677.2001 6.0904305e+08 0.073985402 0.032073707 -35.526325 41.993589 6679.3668 5.9048415e+08 0.073517637 0.029964692 -35.598125 41.902893 6681.5334 5.7057529e+08 0.074458292 0.030066574 -35.671892 41.805704 6683.7000 5.5312495e+08 0.074804373 0.032214486 -35.748408 41.699432 6685.8667 5.2903841e+08 0.074381573 0.033620250 -35.824377 41.594163 6688.0333 5.0107967e+08 0.072070407 0.033792877 -35.892390 41.503479 6690.1999 4.7999706e+08 0.070183338 0.033092951 -35.960404 41.412795 6692.3666 4.5621118e+08 0.069217264 0.032339660 -36.033746 41.317374 6694.5332 4.3424485e+08 0.068472357 0.030513723 -36.114512 41.215352 6696.6998 4.1465691e+08 0.068112844 0.029966551 -36.194198 41.113824 6698.8665 3.9599859e+08 0.066896895 0.031407137 -36.258433 41.019361 6701.0331 3.8436538e+08 0.064984952 0.031458007 -36.322668 40.924899 6703.1997 3.6903402e+08 0.064702219 0.034175019 -36.388490 40.832014 6705.3664 3.5787039e+08 0.064690667 0.037319923 -36.456512 40.741318 6707.5330 3.4434755e+08 0.064249402 0.040110475 -36.524534 40.650623 6709.6996 3.2979808e+08 0.063248095 0.040687546 -36.599119 40.547892 6711.8663 3.1465755e+08 0.061127384 0.041677799 -36.675636 40.441619 6714.0329 2.9626779e+08 0.058939800 0.047305881 -36.746992 40.341896 6716.1995 2.8483354e+08 0.057123504 0.048695243 -36.811225 40.251212 6718.3662 2.7243456e+08 0.054836082 0.050382678 -36.875459 40.160527 6720.5328 2.6283561e+08 0.054262773 0.050358033 -36.949195 40.061072 6722.6994 2.5353465e+08 0.053574151 0.049740534 -37.025711 39.959052 6724.8661 2.4110094e+08 0.049620237 0.042694528 -37.100437 39.855241 6727.0327 2.2848868e+08 0.047708055 0.040916834 -37.172703 39.748968 6729.1993 2.1530206e+08 0.047397339 0.040912574 -37.244417 39.643768 6731.3660 2.0624133e+08 0.045664246 0.042478345 -37.308652 39.553082 6733.5326 2.0000536e+08 0.044564488 0.046815887 -37.372886 39.462397 6735.6992 1.9534826e+08 0.045655470 0.050035708 -37.438720 39.366919 6737.8659 1.8733962e+08 0.047103258 0.056893766 -37.506745 39.264882 6740.0325 1.7823465e+08 0.047039733 0.064105861 -37.575066 39.162547 6742.1991 1.7056191e+08 0.044663369 0.069095945 -37.647332 39.056275 6744.3658 1.6329595e+08 0.040319867 0.078076313 -37.719598 38.950003 6746.5324 1.5506719e+08 0.037372473 0.072797696 -37.783389 38.854918 6748.6990 1.4782742e+08 0.035600787 0.070694462 -37.843845 38.764235 6750.8657 1.3911486e+08 0.032838244 0.073482266 -37.905140 38.672745 6753.0323 1.3140682e+08 0.030127891 0.073081769 -37.977405 38.570723 6755.1989 1.2638393e+08 0.028258559 0.074518133 -38.049669 38.468701 6757.3656 1.2107353e+08 0.026211569 0.075630708 -38.118879 38.363624 6759.5322 1.1797091e+08 0.027165615 0.075948379 -38.186894 38.257351 6761.6988 1.1318934e+08 0.029861633 0.078025961 -38.254908 38.152636 6763.8654 1.0927443e+08 0.033708624 0.079073508 -38.322922 38.050615 6766.0321 1.0387079e+08 0.035563725 0.079786317 -38.390937 37.948595 6768.1987 99782715. 0.032360556 0.081571048 -38.458951 37.846573 6770.3653 92782778. 0.027964896 0.087765829 -38.526965 37.744551 6772.5320 86702051. 0.024152458 0.093020867 -38.592175 37.639708 6774.6986 82216767. 0.020362207 0.098275904 -38.655948 37.533419 6776.8652 76176432. 0.016617547 0.10353094 -38.718696 37.431957 6779.0319 76438154. 0.012821070 0.10878598 -38.779152 37.341273 6781.1985 73671723. 0.0090428713 0.11404102 -38.839609 37.250589 6783.3651 69937653. 0.0052640429 0.11929605 -38.902256 37.152391 6785.5318 69420866. 0.0014189755 0.12455109 -38.966018 37.050369 6787.6984 65785026. -0.0024425948 0.12980613 -39.034115 36.943825 6789.8650 64908026. -0.0063774858 0.13506117 -39.111847 36.827228 6792.0317 59829798. -0.010860383 0.14031620 -39.186060 36.713232 6794.1983 51992172. -0.018603733 0.14557124 -39.249824 36.606959 6796.3649 49704611. -0.019528886 0.15082628 -39.313588 36.500687 6798.5316 51633714. -0.016759513 0.15608131 -39.377352 36.398238