# # 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 = 53.226596 km # Date (UTC) = 2014-12-03T10:06:29.431 # Date (julian) = 2456994.92117397 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6520.9316 2.7744780e+10 0.15273874 0.038595078 104.79446 26.222929 6522.5800 2.6482707e+10 0.15962716 0.039069140 104.82896 26.142434 6524.2285 2.5091151e+10 0.16342193 0.039508124 104.86764 26.052182 6525.8769 2.3585226e+10 0.16593327 0.039682136 104.90645 25.961625 6527.5253 2.2009170e+10 0.16968566 0.041097867 104.94525 25.871068 6529.1738 2.0612114e+10 0.17126035 0.042512574 104.98028 25.789344 6530.8222 1.9454678e+10 0.17274486 0.044979756 105.01478 25.708849 6532.4706 1.8503011e+10 0.17513207 0.047077352 105.04928 25.628355 6534.1191 1.7605495e+10 0.17516449 0.047977863 105.08550 25.545128 6535.7675 1.6651173e+10 0.17440765 0.047891361 105.12432 25.457792 6537.4159 1.5634264e+10 0.17504140 0.048881317 105.16313 25.370456 6539.0644 1.4632846e+10 0.17414738 0.049721533 105.20062 25.285225 6540.7128 1.3768798e+10 0.17356165 0.051190843 105.23512 25.204731 6542.3612 1.3053698e+10 0.17240566 0.051139379 105.26961 25.124237 6544.0097 1.2422710e+10 0.17084215 0.051652181 105.30411 25.043743 6545.6581 1.1822072e+10 0.16971093 0.052461463 105.33861 24.963249 6547.3065 1.1278674e+10 0.16892525 0.053403929 105.37310 24.882755 6548.9550 1.0774828e+10 0.16702063 0.053952828 105.40760 24.802261 6550.6034 1.0310325e+10 0.16599960 0.055136442 105.44361 24.719371 6552.2518 9.8187024e+09 0.16492044 0.055523384 105.48242 24.632047 6553.9003 9.2618907e+09 0.16291063 0.054882522 105.52124 24.544724 6555.5487 8.7073911e+09 0.16158683 0.054392339 105.55819 24.459168 6557.1971 8.2314418e+09 0.16025199 0.053742554 105.58981 24.378674 6558.8455 7.8415858e+09 0.15813254 0.052518793 105.62143 24.298180 6560.4940 7.5160860e+09 0.15637659 0.051828921 105.65306 24.217687 6562.1424 7.1842187e+09 0.15463339 0.050744391 105.69029 24.131853 6563.7908 6.8143356e+09 0.15243522 0.049013539 105.72910 24.044517 6565.4393 6.4400893e+09 0.15118762 0.047819589 105.76792 23.957180 6567.0877 6.0900354e+09 0.15002894 0.046543025 105.80178 23.874557 6568.7361 5.7981180e+09 0.14861736 0.045094970 105.83340 23.794062 6570.3846 5.5786410e+09 0.14782089 0.044758204 105.86503 23.713568 6572.0330 5.3893642e+09 0.14664696 0.044211252 105.89816 23.631638 6573.6814 5.1803385e+09 0.14489843 0.043110641 105.93697 23.544314 6575.3299 4.9437281e+09 0.14364778 0.042043740 105.97578 23.456991 6576.9783 4.6869906e+09 0.14212144 0.040245341 106.01374 23.370475 6578.6267 4.4600054e+09 0.14011423 0.037659919 106.04537 23.289981 6580.2752 4.2732894e+09 0.13857509 0.036266454 106.07699 23.209488 6581.9236 4.1197432e+09 0.13684546 0.035316929 106.10861 23.128994 6583.5720 3.9836332e+09 0.13509294 0.034732127 106.14024 23.050339 6585.2205 3.8487170e+09 0.13351318 0.033794512 106.17186 22.972719 6586.8689 3.7293179e+09 0.13175168 0.033160064 106.20348 22.895100 6588.5173 3.6079939e+09 0.13020881 0.033207165 106.23574 22.815391 6590.1658 3.4753087e+09 0.12869176 0.030753714 106.27132 22.724820 6591.8142 3.3266822e+09 0.12698187 0.028283180 106.30690 22.634249 6593.4626 3.1684515e+09 0.12564760 0.026672113 106.34240 22.544582 6595.1111 3.0419986e+09 0.12412667 0.025635089 106.37690 22.466963 6596.7595 2.9434685e+09 0.12222141 0.025723821 106.41140 22.389344 6598.4079 2.8523607e+09 0.12093720 0.025212405 106.44590 22.311725 6600.0564 2.7627512e+09 0.12073512 0.025105747 106.48103 22.228368 6601.7048 2.6541497e+09 0.12050708 0.027377609 106.51661 22.141045 6603.3532 2.5410006e+09 0.11971288 0.026454164 106.55219 22.053721 6605.0017 2.4291396e+09 0.11950191 0.026666436 106.58579 21.969807 6606.6501 2.3324315e+09 0.11877205 0.026335767 106.61741 21.889313 6608.2985 2.2646892e+09 0.11672471 0.023724479 106.64904 21.808819 6609.9470 2.2057076e+09 0.11447932 0.023987223 106.68067 21.728179 6611.5954 2.1439484e+09 0.11233462 0.024578773 106.71301 21.640859 6613.2438 2.0623713e+09 0.11169671 0.023663050 106.74536 21.553535 6614.8923 1.9779199e+09 0.11083068 0.023325763 106.77770 21.466212 6616.5407 1.9030481e+09 0.10958990 0.023367160 106.80938 21.387893 6618.1891 1.8432064e+09 0.10905673 0.023913605 106.84100 21.310264 6619.8376 1.7933825e+09 0.10833168 0.024728002 106.87263 21.232635 6621.4860 1.7467944e+09 0.10719030 0.024928364 106.90604 21.150635 6623.1344 1.6920408e+09 0.10581852 0.024541626 106.94161 21.063312 6624.7829 1.6273413e+09 0.10469306 0.025281366 106.97719 20.975988 6626.4313 1.5630109e+09 0.10349776 0.026041408 107.01135 20.892147 6628.0797 1.4999014e+09 0.10263540 0.025735461 107.04297 20.814527 6629.7281 1.4601649e+09 0.10171110 0.025977453 107.07459 20.736908 6631.3766 1.4256879e+09 0.10034567 0.025969019 107.10622 20.659288 6633.0250 1.3838365e+09 0.099502208 0.026156620 107.13847 20.573126 6634.6734 1.3397394e+09 0.098437020 0.026375967 107.17081 20.485803 6636.3219 1.2848551e+09 0.097374487 0.026424754 107.20315 20.398480 6637.9703 1.2398357e+09 0.096758092 0.025686183 107.23493 20.318807 6639.6187 1.2032697e+09 0.096427060 0.025406922 107.26655 20.241188 6641.2672 1.1665434e+09 0.096755635 0.025149208 107.29818 20.163568 6642.9156 1.1406490e+09 0.096323529 0.025189165 107.33002 20.081940 6644.5640 1.1074809e+09 0.095407069 0.025404567 107.36236 19.991382 6646.2125 1.0706586e+09 0.094503124 0.026030131 107.39470 19.900825 6647.8609 1.0320851e+09 0.093760867 0.026891051 107.42689 19.813084 6649.5093 9.9513610e+08 0.092914436 0.026931588 107.45852 19.735454 6651.1578 9.6993691e+08 0.092403229 0.026605075 107.49014 19.657825 6652.8062 9.4252120e+08 0.091991749 0.027472340 107.52177 19.580195 6654.4546 9.1400170e+08 0.091024913 0.027842546 107.55393 19.497786 6656.1031 8.8675460e+08 0.089399232 0.028113881 107.58627 19.413697 6657.7515 8.5529880e+08 0.088177374 0.029772830 107.61861 19.329608 6659.3999 8.3016281e+08 0.086792301 0.031751172 107.64862 19.249711 6661.0484 8.0605539e+08 0.085630741 0.032559584 107.67737 19.172092 6662.6968 7.8677165e+08 0.084672989 0.032653326 107.70612 19.094472 6664.3452 7.6760890e+08 0.083779188 0.030942898 107.73603 19.015209 6665.9937 7.4281337e+08 0.083893224 0.026918976 107.77160 18.927886 6667.6421 7.2029645e+08 0.083402801 0.027339311 107.80718 18.840563 6669.2905 6.9458333e+08 0.082579318 0.028057308 107.84222 18.753991 6670.9390 6.7420976e+08 0.082669361 0.026893626 107.87097 18.676371 6672.5874 6.5150542e+08 0.082426138 0.027220064 107.89972 18.598752 6674.2358 6.3398338e+08 0.081528212 0.029153727 107.92847 18.521132 6675.8843 6.2144488e+08 0.079632341 0.031492040 107.95937 18.437693 6677.5327 6.0803471e+08 0.078517420 0.031600940 107.99172 18.350357 6679.1811 5.9169393e+08 0.077997103 0.030118098 108.02407 18.263021 6680.8296 5.7096183e+08 0.078807767 0.029620553 108.05641 18.175691 6682.4780 5.4902542e+08 0.079273661 0.030789746 108.08875 18.088369 6684.1264 5.2462804e+08 0.079324561 0.032660507 108.12109 18.001046 6685.7749 5.0325452e+08 0.078919368 0.033523276 108.15194 17.917754 6687.4233 4.8744516e+08 0.077096073 0.034106828 108.18069 17.840134 6689.0717 4.7934517e+08 0.074673258 0.033951464 108.20944 17.762515 6690.7202 4.7356301e+08 0.073815935 0.033033333 108.23819 17.684895 6692.3686 4.5933519e+08 0.072962796 0.032337313 108.27030 17.601214 6694.0170 4.4827334e+08 0.071969011 0.031237175 108.30264 17.517125 6695.6655 4.3121955e+08 0.071872216 0.029737238 108.33498 17.433036 6697.3139 4.1765278e+08 0.071245073 0.030130988 108.36733 17.346214 6698.9623 4.0345628e+08 0.070145800 0.031538706 108.39967 17.258890 6700.6107 3.8710504e+08 0.068845357 0.031120727 108.43201 17.171567 6702.2592 3.7906577e+08 0.067865934 0.033083687 108.46436 17.084244 6703.9076 3.6449184e+08 0.068143294 0.035946372 108.49670 16.996920 6705.5560 3.5590727e+08 0.068168101 0.037657143 108.52904 16.909597 6707.2045 3.4156138e+08 0.067876366 0.040157535 108.55900 16.830589 6708.8529 3.3031218e+08 0.067397481 0.040972368 108.58775 16.755845 6710.5013 3.2212307e+08 0.066166274 0.040594627 108.61650 16.681100 6712.1498 3.1219266e+08 0.064475928 0.042108043 108.64531 16.604057 6713.7982 3.0375583e+08 0.062774872 0.046573572 108.67443 16.516721 6715.4466 2.9316092e+08 0.061446564 0.047835400 108.70354 16.429384 6717.0951 2.8857857e+08 0.059714133 0.049868388 108.73295 16.342344 6718.7435 2.8083283e+08 0.057834400 0.050970369 108.76529 16.258255 6720.3919 2.7864206e+08 0.057674647 0.050374353 108.79763 16.174166 6722.0404 2.7428134e+08 0.057478282 0.050555295 108.82997 16.090079 6723.6888 2.6453750e+08 0.055872316 0.049753102 108.86231 16.002756 6725.3372 2.5582691e+08 0.052227737 0.041365365 108.89466 15.915433 6726.9857 2.4585632e+08 0.050880582 0.040960257 108.92700 15.828110 6728.6341 2.3715570e+08 0.050673422 0.040526829 108.95640 15.743721 6730.2825 2.3031493e+08 0.049296597 0.040766291 108.98551 15.659632 6731.9310 2.2568754e+08 0.047855958 0.043602820 109.01462 15.575543 6733.5794 2.1769487e+08 0.047050412 0.047070033 109.04636 15.488817 6735.2278 2.1189771e+08 0.047634975 0.049535292 109.07871 15.401493 6736.8763 2.0529458e+08 0.048869079 0.053667774 109.11105 15.314170 6738.5247 2.0069978e+08 0.049482729 0.060209788 109.14105 15.229185 6740.1731 1.9848246e+08 0.049000070 0.064346123 109.17016 15.145096 6741.8216 1.9497672e+08 0.047219723 0.068101834 109.19927 15.061007 6743.4700 1.8807189e+08 0.043695335 0.074218009 109.23041 14.974877 6745.1184 1.8386540e+08 0.041570386 0.078616672 109.26276 14.887554 6746.7669 1.7850362e+08 0.037881161 0.070071681 109.29510 14.800231 6748.4153 1.7550202e+08 0.036977956 0.069201765 109.32570 14.714652 6750.0637 1.6935598e+08 0.034231626 0.072112944 109.35480 14.630563 6751.7122 1.5838556e+08 0.032141307 0.074012775 109.38391 14.546474 6753.3606 1.5491253e+08 0.030765489 0.074144223 109.41447 14.462384 6755.0090 1.5106959e+08 0.029178921 0.074601390 109.44681 14.378295 6756.6575 1.5432542e+08 0.026840808 0.075858637 109.47915 14.294205 6758.3059 1.4962195e+08 0.027030580 0.074352162 109.51035 14.208962 6759.9543 1.4154575e+08 0.027347255 0.076050248 109.53946 14.121626 6761.6028 1.3698167e+08 0.029353802 0.078018024 109.56857 14.034290 6763.2512 1.3177437e+08 0.032504471 0.077202753 109.59768 13.947811 6764.8996 1.3066469e+08 0.034192148 0.079526384 109.62679 13.863722 6766.5480 1.2764976e+08 0.034335618 0.080953446 109.65590 13.779633 6768.1965 1.2156703e+08 0.031229088 0.081563015 109.68500 13.695544 6769.8449 1.1670314e+08 0.027445704 0.086503551 109.71411 13.611455 6771.4933 1.1101977e+08 0.024202192 0.090501725 109.74322 13.527365 6773.1418 1.0661018e+08 0.020957113 0.094499898 109.77258 13.443276 6774.7902 97277137. 0.017569121 0.098498072 109.80493 13.359187 6776.4386 90047335. 0.014126515 0.10249625 109.83727 13.275098 6778.0871 84157700. 0.010594420 0.10649442 109.86961 13.191009 6779.7355 78348178. 0.0068696312 0.11049259 109.89876 13.106920 6781.3839 81321609. 0.0033873211 0.11449077 109.92787 13.022831 6783.0324 78674903. -0.00083615297 0.11848894 109.95697 12.938742 6784.6808 74267757. -0.0060529752 0.12248711 109.98981 12.843887 6786.3292 69589749. -0.014489481 0.12648529 110.02308 12.747783 6787.9777 61804399. -0.050221856 0.13048346 110.05555 12.653970 6789.6261 54800404. -0.031164490 0.13448164 110.08466 12.569881 6791.2745 53996580. 0.028047165 0.13847981 110.11376 12.485792