# # 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 = 47.718813 km # Date (UTC) = 2014-11-19T10:07:28.477 # Date (julian) = 2456980.92185737 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.1210 1.2545459e+11 0.055655395 0.032922801 -22.336683 62.944552 6504.0808 1.0701158e+11 0.063413184 0.033513760 -22.552007 62.847875 6506.0405 9.1673258e+10 0.071260040 0.034104720 -22.767332 62.751198 6508.0003 8.0091144e+10 0.079385284 0.034695679 -22.973942 62.658877 6509.9601 7.0741166e+10 0.087812834 0.035286638 -23.180443 62.566611 6511.9198 6.2909008e+10 0.096528241 0.035877597 -23.383842 62.471207 6513.8796 5.6137905e+10 0.10552004 0.036468556 -23.585984 62.374530 6515.8393 5.0415254e+10 0.11485878 0.037059516 -23.788126 62.277853 6517.7991 4.5363988e+10 0.12449097 0.037650475 -23.990268 62.181175 6519.7588 4.1206611e+10 0.13454782 0.038241434 -24.187745 62.086434 6521.7186 3.7821808e+10 0.14506996 0.038832393 -24.360797 62.001832 6523.6783 3.4994121e+10 0.15116539 0.039347240 -24.533848 61.917231 6525.6381 3.2634508e+10 0.15639619 0.039709389 -24.720727 61.825868 6527.5979 3.0119107e+10 0.16163198 0.041150524 -24.918474 61.729191 6529.5576 2.7631786e+10 0.16547206 0.043124017 -25.113713 61.632518 6531.5174 2.5291996e+10 0.16855822 0.045981720 -25.302640 61.535858 6533.4771 2.3121801e+10 0.17120558 0.047722352 -25.491567 61.439197 6535.4369 2.1154888e+10 0.17233951 0.048034778 -25.680525 61.342522 6537.3966 1.9337029e+10 0.17337357 0.048872224 -25.869484 61.245846 6539.3564 1.7819050e+10 0.17318525 0.050075036 -26.038335 61.155199 6541.3162 1.6657910e+10 0.17181839 0.051224003 -26.199850 61.066750 6543.2759 1.5697560e+10 0.17012271 0.051454307 -26.364414 60.977214 6545.2357 1.4725315e+10 0.16863189 0.052457678 -26.548978 60.880537 6547.1954 1.3683699e+10 0.16696345 0.053361679 -26.733542 60.783860 6549.1552 1.2610085e+10 0.16495950 0.054124416 -26.914341 60.683419 6551.1149 1.1604472e+10 0.16355212 0.055276094 -27.094511 60.582349 6553.0747 1.0716993e+10 0.16257288 0.055297523 -27.272127 60.481278 6555.0344 9.9047760e+09 0.16128622 0.054824425 -27.447903 60.380207 6556.9942 9.2005509e+09 0.15954418 0.053866960 -27.615793 60.282995 6558.9540 8.6507577e+09 0.15729437 0.052426418 -27.765748 60.194560 6560.9137 8.1923867e+09 0.15517265 0.051450482 -27.915703 60.106125 6562.8735 7.7896384e+09 0.15345253 0.050048768 -28.080756 60.011883 6564.8332 7.3579941e+09 0.15162421 0.048393981 -28.252138 59.915205 6566.7930 6.9028531e+09 0.14992297 0.046734299 -28.423519 59.816644 6568.7527 6.4464903e+09 0.14840476 0.045079720 -28.594899 59.715573 6570.7125 6.0412736e+09 0.14736159 0.044622372 -28.761815 59.615850 6572.6722 5.7113112e+09 0.14597041 0.043845178 -28.904081 59.523570 6574.6320 5.4417328e+09 0.14393776 0.042551456 -29.046346 59.431289 6576.5918 5.2130655e+09 0.14164185 0.040690268 -29.199843 59.334151 6578.5515 4.9577831e+09 0.13900137 0.037778710 -29.362436 59.233080 6580.5113 4.6920417e+09 0.13665656 0.036048266 -29.525028 59.132009 6582.4710 4.4030114e+09 0.13484431 0.035165616 -29.687620 59.030939 6584.4308 4.1335685e+09 0.13311788 0.034280848 -29.850074 58.929941 6586.3905 3.9151983e+09 0.13160293 0.033166248 -29.988601 58.841450 6588.3503 3.7320664e+09 0.13048584 0.033262949 -30.127021 58.753015 6590.3100 3.5849603e+09 0.12873785 0.030485328 -30.271603 58.657758 6592.2698 3.4225474e+09 0.12683662 0.027811464 -30.425406 58.552292 6594.2296 3.2469191e+09 0.12496399 0.026046506 -30.576808 58.448954 6596.1893 3.0909242e+09 0.12269585 0.025726413 -30.711383 58.360519 6598.1491 2.9584811e+09 0.12116256 0.025335993 -30.845958 58.272084 6600.1088 2.8346477e+09 0.12066388 0.025213607 -30.988308 58.174723 6602.0686 2.7188753e+09 0.12011732 0.027458106 -31.137718 58.069259 6604.0283 2.5856315e+09 0.11875340 0.026088104 -31.287127 57.963794 6605.9881 2.4486686e+09 0.11857143 0.027493977 -31.436536 57.858328 6607.9479 2.3231673e+09 0.11661771 0.023835344 -31.585945 57.752862 6609.9076 2.2085982e+09 0.11387969 0.023975534 -31.713442 57.663965 6611.8674 2.1211406e+09 0.11139387 0.024405334 -31.840327 57.575530 6613.8271 2.0450447e+09 0.11022199 0.023877062 -31.973958 57.480758 6615.7869 1.9611061e+09 0.10857036 0.023275742 -32.118973 57.375292 6617.7466 1.8733484e+09 0.10761517 0.023686793 -32.263564 57.269826 6619.7064 1.7742184e+09 0.10674529 0.024696354 -32.404184 57.164362 6621.6661 1.6792591e+09 0.10544825 0.024868650 -32.544804 57.058898 6623.6259 1.6025708e+09 0.10351012 0.024723712 -32.670994 56.964255 6625.5857 1.5376738e+09 0.10223899 0.026096467 -32.794034 56.871974 6627.5454 1.4854566e+09 0.10039259 0.025527494 -32.919976 56.776792 6629.5052 1.4184295e+09 0.099492011 0.026017769 -33.056202 56.671328 6631.4649 1.3512862e+09 0.098119422 0.025977993 -33.192429 56.565863 6633.4247 1.2903893e+09 0.097065907 0.026226398 -33.312570 56.472850 6635.3844 1.2418351e+09 0.095820521 0.026457439 -33.431764 56.380569 6637.3442 1.2002104e+09 0.094598381 0.025992838 -33.555301 56.283758 6639.3039 1.1512966e+09 0.093882928 0.025519437 -33.687135 56.178293 6641.2637 1.1009412e+09 0.094410456 0.025149196 -33.818968 56.072828 6643.2235 1.0436774e+09 0.093972941 0.025226358 -33.950800 55.967362 6645.1832 9.9518420e+08 0.093068733 0.025537514 -34.082631 55.861896 6647.1430 9.5055883e+08 0.091941839 0.026513055 -34.201402 55.766878 6649.1027 9.1481551e+08 0.090697139 0.027492084 -34.316752 55.674598 6651.0625 8.8629600e+08 0.090162815 0.026532049 -34.434418 55.578949 6653.0222 8.4771909e+08 0.089705106 0.027537016 -34.561855 55.469089 6654.9820 8.1104178e+08 0.088431084 0.027617887 -34.689293 55.359230 6656.9418 7.7515343e+08 0.086463100 0.028849986 -34.798614 55.265473 6658.9015 7.4628092e+08 0.084798356 0.031659918 -34.906274 55.173194 6660.8613 7.2261095e+08 0.083322234 0.032408843 -35.020167 55.076758 6662.8210 6.9993360e+08 0.081900073 0.032583632 -35.147606 54.971292 6664.7808 6.6981578e+08 0.080909595 0.029349270 -35.274696 54.865651 6666.7405 6.4139642e+08 0.080373014 0.027052897 -35.393344 54.755792 6668.7003 6.1163570e+08 0.079157259 0.028090477 -35.511993 54.645932 6670.6600 5.8785476e+08 0.078982932 0.027022846 -35.622247 54.549503 6672.6198 5.6770941e+08 0.078634252 0.027238845 -35.729906 54.457224 6674.5796 5.4659760e+08 0.077508464 0.029443682 -35.839359 54.362076 6676.5393 5.3204644e+08 0.075365234 0.032061306 -35.958007 54.252217 6678.4991 5.0964049e+08 0.074650126 0.030602818 -36.076656 54.142357 6680.4588 4.8869154e+08 0.075221259 0.029540495 -36.195304 54.036397 6682.4186 4.6630541e+08 0.075837628 0.030744352 -36.313952 53.930931 6684.3783 4.4276835e+08 0.075905317 0.032673291 -36.421172 53.833534 6686.3381 4.2805912e+08 0.074962680 0.033957789 -36.521142 53.741254 6688.2978 4.1558407e+08 0.072503549 0.033853943 -36.621294 53.648750 6690.2576 4.0051304e+08 0.070913729 0.033086342 -36.735525 53.538919 6692.2174 3.8529555e+08 0.069905282 0.032512926 -36.849780 53.429060 6694.1771 3.6930341e+08 0.068999250 0.031012795 -36.960802 53.319200 6696.1369 3.5407874e+08 0.068808409 0.029732651 -37.070662 53.209341 6698.0966 3.4114298e+08 0.067946428 0.030350445 -37.180521 53.101502 6700.0564 3.2636248e+08 0.066432319 0.030709537 -37.290381 52.996036 6702.0161 3.1104337e+08 0.064812775 0.032889615 -37.397710 52.892291 6703.9759 2.9808853e+08 0.065097690 0.036117227 -37.493835 52.796166 6705.9356 2.9087399e+08 0.064992154 0.038331999 -37.589960 52.700041 6707.8954 2.8106080e+08 0.064598122 0.040058561 -37.694099 52.598465 6709.8552 2.7078909e+08 0.063527267 0.040588620 -37.803959 52.492999 6711.8149 2.6422241e+08 0.061541768 0.041619383 -37.912466 52.386180 6713.7747 2.4934342e+08 0.059725533 0.046488444 -38.017931 52.276320 6715.7344 2.4325787e+08 0.058195342 0.048129739 -38.123395 52.166461 6717.6942 2.3391276e+08 0.056428827 0.049831330 -38.228861 52.056601 6719.6539 2.2398796e+08 0.055106381 0.050748549 -38.334327 51.946742 6721.6137 2.1435720e+08 0.055476069 0.050488808 -38.426907 51.847273 6723.5735 2.0104285e+08 0.054167714 0.049688767 -38.515342 51.751148 6725.5332 1.9497962e+08 0.050381856 0.041242951 -38.605745 51.653568 6727.4930 1.9005613e+08 0.049353097 0.040303619 -38.706816 51.548104 6729.4527 1.8459318e+08 0.048726170 0.040743679 -38.807887 51.442640 6731.4125 1.7511644e+08 0.047241203 0.042570925 -38.908958 51.333307 6733.3722 1.7075553e+08 0.046258004 0.045945254 -39.010029 51.223446 6735.3320 1.6504207e+08 0.046920210 0.049645860 -39.111100 51.113586 6737.2917 1.5923676e+08 0.048387080 0.055064917 -39.212170 51.003727 6739.2515 1.4724261e+08 0.049001886 0.063134338 -39.311796 50.893867 6741.2113 1.3874016e+08 0.047834954 0.066361200 -39.408473 50.784008 6743.1710 1.3173595e+08 0.044430780 0.072201069 -39.505150 50.674148 6745.1308 1.2591564e+08 0.041708700 0.078621859 -39.601827 50.564289 6747.0905 1.2118525e+08 0.037157519 0.067329998 -39.698504 50.454429 6749.0503 1.1168058e+08 0.037353980 0.072264167 -39.785780 50.358240 6751.0100 1.1033344e+08 0.034546228 0.073715913 -39.870369 50.265959 6752.9698 1.0601939e+08 0.031876669 0.073012249 -39.957096 50.170569 6754.9295 1.0506673e+08 0.030205903 0.074718646 -40.053774 50.060709 6756.8893 1.0019462e+08 0.027741588 0.076455212 -40.150452 49.950849 6758.8491 92415846. 0.028762601 0.075500766 -40.243167 49.840989 6760.8088 86580888. 0.029255504 0.077603640 -40.335449 49.731130 6762.7686 79827658. 0.034282546 0.076811081 -40.427732 49.621270 6764.7283 79941488. 0.036652048 0.079518178 -40.520015 49.511411 6766.6881 76241444. 0.037191646 0.081270199 -40.610759 49.401551 6768.6478 73052812. 0.033428043 0.083187095 -40.698646 49.291692 6770.6076 69138162. 0.029834695 0.088353380 -40.786859 49.181832 6772.5673 65631113. 0.026519345 0.093106650 -40.879142 49.071973 6774.5271 65332887. 0.023110717 0.097859919 -40.971425 48.962113 6776.4869 62532742. 0.019917476 0.10261319 -41.060197 48.852254 6778.4466 59130251. 0.016934350 0.10736646 -41.148083 48.742394 6780.4064 53485015. 0.014573757 0.11211973 -41.243634 48.622955 6782.3661 51033078. 0.012192448 0.11687300 -41.346174 48.494781 6784.3259 50190978. 0.015149236 0.12162627 -41.440324 48.377093 6786.2856 54959045. 0.0050239958 0.12637954 -41.528212 48.267234 6788.2454 59289417. -0.0089175095 0.13113281 -41.614794 48.157374