# # 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 = 60.777421 km # Date (UTC) = 2014-12-07T09:59:23.980 # Date (julian) = 2456998.91624977 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6510.2590 4.8383309e+10 0.092807432 0.035376796 106.53777 26.715193 6512.7145 4.4348432e+10 0.10428209 0.036117227 106.59076 26.596889 6515.1699 4.0855527e+10 0.11606163 0.036857657 106.64642 26.481271 6517.6254 3.7588541e+10 0.12807622 0.037598088 106.70217 26.364928 6520.0808 3.4264815e+10 0.14018856 0.038338518 106.75998 26.230037 6522.5362 3.0973601e+10 0.15092799 0.039057669 106.81779 26.095146 6524.9917 2.7907126e+10 0.15712454 0.039779254 106.87354 25.978792 6527.4471 2.5364722e+10 0.16095990 0.041041072 106.92921 25.863173 6529.9025 2.3248234e+10 0.16463979 0.043673450 106.98220 25.744861 6532.3580 2.1373342e+10 0.16712818 0.046983243 107.03359 25.624945 6534.8134 1.9661645e+10 0.16822591 0.048172101 107.08499 25.506282 6537.2689 1.8143023e+10 0.16836028 0.048811978 107.13637 25.390664 6539.7243 1.6719495e+10 0.16869479 0.050520360 107.18776 25.275045 6542.1797 1.5260758e+10 0.16753155 0.051070472 107.24529 25.140995 6544.6352 1.3870657e+10 0.16682347 0.052159604 107.30310 25.006103 6547.0906 1.2594038e+10 0.16604649 0.053321818 107.35525 24.888184 6549.5460 1.1522581e+10 0.16496326 0.054522735 107.40664 24.772565 6552.0015 1.0656863e+10 0.16396740 0.055586395 107.45803 24.656938 6554.4569 9.8704875e+09 0.16177526 0.054841968 107.50942 24.541305 6556.9123 9.1639829e+09 0.15955734 0.053878993 107.56081 24.424773 6559.3678 8.5233864e+09 0.15667523 0.052345669 107.61220 24.304872 6561.8232 7.9577666e+09 0.15396522 0.050967015 107.66358 24.184972 6564.2787 7.4635466e+09 0.15111587 0.048645308 107.71497 24.068818 6566.7341 7.0112639e+09 0.14923833 0.046767607 107.76636 23.953199 6569.1895 6.5480105e+09 0.14749831 0.044864760 107.82121 23.829776 6571.6450 6.0767772e+09 0.14642239 0.044327121 107.87902 23.699703 6574.1004 5.6227455e+09 0.14449586 0.042806779 107.93186 23.574351 6576.5558 5.2114977e+09 0.14279548 0.040731602 107.97896 23.454451 6579.0113 4.8718347e+09 0.14030365 0.037064294 108.02662 23.335100 6581.4667 4.5707810e+09 0.13843222 0.035455279 108.07801 23.219466 6583.9222 4.3086878e+09 0.13649929 0.034554911 108.12941 23.103832 6586.3776 4.0846250e+09 0.13460300 0.033166415 108.17740 22.988210 6588.8330 3.8787360e+09 0.13277000 0.033101737 108.22450 22.872591 6591.2885 3.6727487e+09 0.13018065 0.028876405 108.27651 22.750343 6593.7439 3.4548061e+09 0.12776599 0.026410613 108.33433 22.620271 6596.1993 3.2436610e+09 0.12474678 0.025726368 108.38804 22.495732 6598.6548 3.0512333e+09 0.12251575 0.025094549 108.43514 22.380113 6601.1102 2.8833680e+09 0.12198196 0.027097597 108.48225 22.264494 6603.5657 2.7395548e+09 0.12021033 0.026328407 108.52935 22.148860 6606.0211 2.6093059e+09 0.11900185 0.027466059 108.57646 22.033226 6608.4765 2.4978441e+09 0.11561353 0.023719772 108.62357 21.917602 6610.9320 2.3949805e+09 0.11180653 0.024893453 108.67067 21.801983 6613.3874 2.2905599e+09 0.11060753 0.023715730 108.72182 21.680909 6615.8428 2.1732631e+09 0.10932934 0.023277464 108.77963 21.550836 6618.2983 2.0536340e+09 0.10903042 0.023996033 108.83421 21.425123 6620.7537 1.9441043e+09 0.10856323 0.025010082 108.88131 21.309505 6623.2092 1.8472935e+09 0.10725065 0.024569314 108.92842 21.193887 6625.6646 1.7716325e+09 0.10593410 0.026190661 108.97552 21.078268 6628.1200 1.7023308e+09 0.10417680 0.025751828 109.02263 20.962649 6630.5755 1.6250597e+09 0.10259976 0.025929720 109.07040 20.837908 6633.0309 1.5474658e+09 0.10114485 0.026157648 109.11858 20.707835 6635.4863 1.4651896e+09 0.099554693 0.026472722 109.16616 20.585781 6637.9418 1.3887697e+09 0.098318859 0.025700158 109.21327 20.470147 6640.3972 1.3277427e+09 0.098191492 0.025222052 109.26038 20.354516 6642.8527 1.2727192e+09 0.097823797 0.025186589 109.30749 20.238897 6645.3081 1.2198899e+09 0.096472108 0.025596013 109.35459 20.123279 6647.7635 1.1621815e+09 0.095075353 0.026839780 109.40691 19.999130 6650.2190 1.1071087e+09 0.093993053 0.026305364 109.45990 19.873875 6652.6744 1.0552988e+09 0.093193479 0.027436076 109.50466 19.756419 6655.1298 1.0112814e+09 0.091553462 0.027663866 109.54748 19.640800 6657.5853 9.6922778e+08 0.089199740 0.029580012 109.59513 19.518328 6660.0407 9.1930887e+08 0.087303058 0.031663003 109.64812 19.388255 6662.4961 8.7550437e+08 0.085380648 0.032765902 109.69706 19.263934 6664.9516 8.3379105e+08 0.084388625 0.028724272 109.73989 19.148300 6667.4070 8.0411680e+08 0.083759549 0.027252965 109.78336 19.032056 6669.8625 7.7042168e+08 0.083027133 0.027469895 109.83635 18.906801 6672.3179 7.3362986e+08 0.082889704 0.027063859 109.88935 18.781545 6674.7733 6.9874620e+08 0.081649046 0.029607151 109.93229 18.665808 6677.2288 6.6575538e+08 0.079429388 0.032032993 109.97511 18.550189 6679.6842 6.3911404e+08 0.079315285 0.029702371 110.02457 18.428283 6682.1396 6.1070379e+08 0.080246775 0.030531239 110.07756 18.303028 6684.5951 5.8334868e+08 0.080361683 0.032684290 110.12469 18.183329 6687.0505 5.5867428e+08 0.078649031 0.034314723 110.16751 18.067709 6689.5060 5.3843678e+08 0.075789632 0.033560580 110.21163 17.949759 6691.9614 5.1440945e+08 0.074602541 0.032774437 110.25981 17.824485 6694.4168 4.8958997e+08 0.073666004 0.030676813 110.30711 17.700813 6696.8723 4.6777734e+08 0.073175088 0.030038196 110.34993 17.585195 6699.3277 4.4942264e+08 0.071568690 0.031288051 110.39275 17.469577 6701.7831 4.3203496e+08 0.069465184 0.032558543 110.44002 17.345954 6704.2386 4.1392199e+08 0.069580061 0.036294710 110.48819 17.220698 6706.6940 3.9398550e+08 0.069282728 0.039654291 110.53233 17.102717 6709.1495 3.7769391e+08 0.068420344 0.041037481 110.57515 16.987098 6711.6049 3.6516883e+08 0.066087515 0.041380436 110.62022 16.867435 6714.0603 3.5009573e+08 0.063456175 0.047307944 110.66839 16.742179 6716.5158 3.3520117e+08 0.061254955 0.049161040 110.71657 16.616924 6718.9712 3.2050977e+08 0.058457406 0.051324994 110.76474 16.491668 6721.4266 3.0583386e+08 0.058824084 0.050432449 110.81292 16.365115 6723.8821 2.9281180e+08 0.056959819 0.049860895 110.86110 16.235023 6726.3375 2.7958660e+08 0.052911954 0.040954412 110.90825 16.108544 6728.7930 2.6793877e+08 0.052330742 0.040751976 110.95107 15.997208 6731.2484 2.5392387e+08 0.050465123 0.042244371 110.99390 15.885872 6733.7038 2.4555594e+08 0.049118447 0.047745601 111.04131 15.762601 6736.1593 2.3478631e+08 0.050727529 0.050957122 111.08948 15.637344 6738.6147 2.2335693e+08 0.051966276 0.060705317 111.13766 15.512089 6741.0701 2.1421993e+08 0.050890724 0.065958736 111.18583 15.386834 6743.5256 2.0504330e+08 0.046361065 0.074592975 111.23061 15.258178 6745.9810 1.9763212e+08 0.044264447 0.078979297 111.27397 15.128104 6748.4365 1.8952639e+08 0.040159595 0.069313091 111.32036 15.001067 6750.8919 1.7758762e+08 0.037398047 0.073527068 111.36853 14.875812 6753.3473 1.6854219e+08 0.034466270 0.074101303 111.41671 14.750556 6755.8028 1.6815742e+08 0.031850285 0.074253384 111.46488 14.625300 6758.2582 1.7006975e+08 0.030934921 0.074251324 111.50845 14.506700 6760.7136 1.7078761e+08 0.031342332 0.077422147 111.54700 14.395349 6763.1691 1.6817234e+08 0.036657401 0.076952688 111.58693 14.281999 6765.6245 1.6125951e+08 0.039105539 0.079645200 111.63510 14.156744 6768.0800 1.5373164e+08 0.036344249 0.081143705 111.68295 14.031488 6770.5354 1.4991967e+08 0.031187709 0.088178250 111.72630 13.906232 6772.9908 1.4174772e+08 0.026770610 0.094133765 111.76966 13.780976 6775.4463 1.3585370e+08 0.022371503 0.10008928 111.82463 13.637965 6777.9017 1.2906855e+08 0.018027704 0.10604479 111.87763 13.497962 6780.3571 1.2154800e+08 0.013723255 0.11200031 111.92099 13.372705 6782.8126 1.1615401e+08 0.0094001762 0.11795582 111.96434 13.247449 6785.2680 1.1182648e+08 0.0050643003 0.12391134 112.00770 13.122194 6787.7234 1.0898295e+08 0.00071016030 0.12986685 112.05118 12.996938 6790.1789 1.0662570e+08 -0.0036476503 0.13582237 112.09936 12.871682 6792.6343 1.0238081e+08 -0.0079705128 0.14177788 112.14753 12.746427 6795.0898 96995904. -0.012269837 0.14773340 112.19113 12.625742 6797.5452 93722692. -0.016597360 0.15368891 112.23449 12.505304 6800.0006 89300806. -0.020895286 0.15964443 112.27785 12.380660 6802.4561 84771719. -0.025180254 0.16559994 112.32121 12.255405 6804.9115 82439411. -0.029504505 0.17155546 112.36950 12.115882 6807.3669 78438081. -0.033785544 0.17751097 112.41905 11.972729 6809.8224 76707316. -0.038105309 0.18346649 112.46253 11.847133 6812.2778 72811719. -0.042372300 0.18942200 112.50589 11.721877 6814.7333 66283176. -0.046559663 0.19537752 112.55984 11.585406 6817.1887 65613165. -0.050881893 0.20133303 112.61386 11.448860 6819.6441 67616208. -0.055274942 0.20728855 112.65722 11.323585 6822.0996 69402135. -0.059655052 0.21324406 112.70058 11.198311 6824.5550 67964317. -0.063957485 0.21919958 112.74394 11.073056 6827.0104 61855699. -0.068132809 0.22515509 112.78730 10.947800 6829.4659 54302921. -0.072205767 0.23111061 112.83647 10.810925 6831.9213 51399652. -0.076365786 0.23706612 112.88602 10.672609 6834.3768 51789420. -0.080626706 0.24302164 112.93557 10.529457 6836.8322 51605565. -0.084853660 0.24897715 112.98324 10.393238 6839.2876 52794962. -0.089070774 0.25493267 113.02659 10.272800 6841.7431 51961849. -0.093523630 0.26088818 113.07011 10.147150 6844.1985 48432708. -0.097881014 0.26684369 113.11415 10.003998 6846.6539 47400473. -0.10244018 0.27279921 113.16048 9.8631206 6849.1094 44361966. -0.10687161 0.27875472 113.21003 9.7254743