# # 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 = 64.836615 km # Date (UTC) = 2015-01-30T09:52:30.713 # Date (julian) = 2457052.91146658 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6499.0756 5.8483068e+10 0.043044153 0.032004463 101.59941 52.642358 6501.6399 5.2981685e+10 0.052244021 0.032777731 101.79328 52.416175 6504.2043 4.8201463e+10 0.061690833 0.033551000 102.03379 52.135577 6506.7686 4.3547346e+10 0.071406288 0.034324268 102.22700 51.910160 6509.3330 3.9251085e+10 0.081499514 0.035097537 102.42018 51.684786 6511.8973 3.5820266e+10 0.092227169 0.035870805 102.60907 51.455087 6514.4616 3.2862541e+10 0.10367490 0.036644073 102.79423 51.223977 6517.0260 2.9763040e+10 0.11560496 0.037417342 102.98123 50.995701 6519.5903 2.6675309e+10 0.12803455 0.038190610 103.20006 50.717195 6522.1546 2.3857840e+10 0.14069723 0.038957742 103.37718 50.491779 6524.7190 2.1313628e+10 0.14768948 0.039682375 103.55429 50.266361 6527.2833 1.9286569e+10 0.15361919 0.040922148 103.73140 50.036335 6529.8476 1.7431235e+10 0.15899514 0.043585988 103.90584 49.805546 6532.4120 1.5677095e+10 0.16350277 0.047028347 104.07486 49.580176 6534.9763 1.4164846e+10 0.16689030 0.048217667 104.24393 49.354760 6537.5406 1.2971892e+10 0.16914278 0.048940112 104.38916 49.155451 6540.1050 1.1948292e+10 0.17163515 0.050903694 104.53717 48.949958 6542.6693 1.1048067e+10 0.17144331 0.051256344 104.69815 48.724589 6545.2336 1.0137478e+10 0.17092283 0.052457660 104.85916 48.499173 6547.7980 9.2519412e+09 0.16920876 0.053590820 105.02018 48.266747 6550.3623 8.4620036e+09 0.16719640 0.055076079 105.17613 48.038340 6552.9266 7.8097729e+09 0.16503494 0.055353530 105.32182 47.827453 6555.4910 7.2257240e+09 0.16248930 0.054440822 105.45597 47.639648 6558.0553 6.6657945e+09 0.16014622 0.053192168 105.60696 47.410960 6560.6197 6.1283505e+09 0.15716465 0.051715613 105.75992 47.182751 6563.1840 5.6506486e+09 0.15449606 0.049715537 105.89964 46.970022 6565.7483 5.2810492e+09 0.15185487 0.047468668 106.02039 46.775473 6568.3127 4.9596110e+09 0.15007618 0.045484256 106.17076 46.552562 6570.8770 4.6460856e+09 0.14839881 0.044554229 106.31825 46.321703 6573.4413 4.3202258e+09 0.14655315 0.043303328 106.45264 46.108124 6576.0057 4.0193506e+09 0.14420508 0.041364877 106.57339 45.920285 6578.5700 3.7715467e+09 0.14150956 0.037749524 106.70937 45.696926 6581.1343 3.5596850e+09 0.13865803 0.035555932 106.83489 45.493240 6583.6987 3.3487688e+09 0.13628344 0.034668033 106.95904 45.292172 6586.2630 3.1552981e+09 0.13367768 0.033167896 107.09590 45.066756 6588.8273 2.9737734e+09 0.13124324 0.033103639 107.21063 44.871281 6591.3917 2.8007110e+09 0.12792265 0.028759955 107.33561 44.661934 6593.9560 2.6437964e+09 0.12452423 0.026213425 107.46546 44.443851 6596.5203 2.5000091e+09 0.12056408 0.025724908 107.57278 44.249341 6599.0847 2.3707545e+09 0.11720953 0.024934823 107.68511 44.059807 6601.6490 2.2451387e+09 0.11608159 0.027351337 107.80294 43.860299 6604.2133 2.1248161e+09 0.11397830 0.026197954 107.93146 43.627453 6606.7777 2.0080913e+09 0.11309493 0.026106496 108.03879 43.439611 6609.3420 1.8919474e+09 0.11011901 0.023807526 108.15734 43.227940 6611.9064 1.7934904e+09 0.10762487 0.024380472 108.28011 43.007312 6614.4707 1.6929223e+09 0.10690384 0.023616209 108.38745 42.819470 6617.0350 1.6053187e+09 0.10569942 0.023450860 108.48948 42.626333 6619.5994 1.5435208e+09 0.10515570 0.024670529 108.59011 42.433793 6622.1637 1.4768273e+09 0.10400619 0.024714424 108.69074 42.245951 6624.7280 1.4138784e+09 0.10228213 0.025252018 108.80765 42.021215 6627.2924 1.3407982e+09 0.10032040 0.025429745 108.91700 41.813594 6629.8567 1.2758276e+09 0.099068252 0.025954212 109.01763 41.625758 6632.4210 1.2213910e+09 0.097112158 0.026082830 109.11824 41.437956 6634.9854 1.1769924e+09 0.095362390 0.026398720 109.21886 41.246208 6637.5497 1.1282646e+09 0.093602537 0.025892185 109.32062 41.048749 6640.1140 1.0709702e+09 0.093265253 0.025256700 109.43333 40.823333 6642.6784 1.0150746e+09 0.093029117 0.025179457 109.53003 40.624219 6645.2427 9.6138416e+08 0.091705954 0.025565383 109.62637 40.432094 6647.8070 9.2655674e+08 0.090072926 0.026862690 109.72700 40.244255 6650.3714 8.9029347e+08 0.088819221 0.026340255 109.82177 40.050607 6652.9357 8.5564138e+08 0.087911760 0.027507973 109.91313 39.858631 6655.5000 8.2494806e+08 0.085787153 0.027816836 110.00035 39.670792 6658.0644 7.9272547e+08 0.083532778 0.030175258 110.09353 39.482951 6660.6287 7.6363861e+08 0.081526157 0.032197469 110.19494 39.276920 6663.1930 7.2803742e+08 0.080037176 0.032429714 110.30365 39.050597 6665.7574 6.8912729e+08 0.079760685 0.027306129 110.39086 38.862754 6668.3217 6.5338048e+08 0.079065469 0.027755473 110.47806 38.674938 6670.8861 6.2209748e+08 0.078893924 0.026918138 110.56526 38.485956 6673.4504 5.9597713e+08 0.078434271 0.028132807 110.65247 38.291407 6676.0147 5.7183599e+08 0.076075762 0.031723214 110.73968 38.101450 6678.5791 5.5233514e+08 0.074930713 0.030549314 110.82689 37.913611 6681.1434 5.3165995e+08 0.075829574 0.029767368 110.91411 37.725769 6683.7077 5.1049976e+08 0.076322552 0.032225765 111.00132 37.533213 6686.2721 4.8902702e+08 0.075504087 0.033919375 111.08853 37.340091 6688.8364 4.6535242e+08 0.072273171 0.033978260 111.17574 37.152248 6691.4007 4.4608352e+08 0.071005846 0.032906716 111.25810 36.964435 6693.9651 4.2806804e+08 0.069785189 0.031273010 111.33859 36.775075 6696.5294 4.1289734e+08 0.069444744 0.029895742 111.41909 36.580526 6699.0937 3.9382253e+08 0.067981846 0.031503938 111.51748 36.363127 6701.6581 3.7552038e+08 0.065904715 0.032375027 111.61010 36.156430 6704.2224 3.5557678e+08 0.066066991 0.036286768 111.69061 35.968591 6706.7867 3.3881893e+08 0.065817125 0.039815670 111.77111 35.780749 6709.3511 3.2439951e+08 0.064943647 0.040909240 111.85160 35.589461 6711.9154 3.0872416e+08 0.062564408 0.041733722 111.93192 35.395125 6714.4797 2.9497945e+08 0.060104112 0.047339476 112.00571 35.207284 6717.0441 2.8157795e+08 0.057811542 0.049871542 112.08310 35.019444 6719.6084 2.7410656e+08 0.055788079 0.050791797 112.16360 34.831605 6722.1728 2.6394837e+08 0.055961552 0.050391636 112.24410 34.643766 6724.7371 2.5376008e+08 0.052175863 0.043771505 112.32089 34.455925 6727.3014 2.4366514e+08 0.050027131 0.040558805 112.39468 34.268084 6729.8658 2.3577368e+08 0.049093319 0.040468378 112.46847 34.080245 6732.4301 2.2733786e+08 0.047402284 0.043819388 112.54610 33.888584 6734.9944 2.1868280e+08 0.047427329 0.049293768 112.62605 33.694618 6737.5588 2.0973478e+08 0.049421977 0.055915517 112.69984 33.506779 6740.1231 2.0078789e+08 0.049510495 0.064260653 112.77363 33.318940 6742.6874 1.9473044e+08 0.046234032 0.070285810 112.84742 33.131101 6745.2518 1.8967621e+08 0.042411986 0.078672727 112.92122 32.943260 6747.8161 1.8263347e+08 0.038147525 0.067080208 112.99501 32.755420 6750.3804 1.7940417e+08 0.035456984 0.072653743 113.06801 32.567581 6752.9448 1.7220800e+08 0.032646628 0.073041198 113.13509 32.379742 6755.5091 1.6424285e+08 0.030338894 0.074382134 113.21566 32.168308 6758.0734 1.5676223e+08 0.029167893 0.073860626 113.29850 31.957438 6760.6378 1.4863085e+08 0.029819708 0.077277482 113.37230 31.769599 6763.2021 1.4325297e+08 0.035277960 0.077053300 113.44009 31.581759 6765.7664 1.3529070e+08 0.037848956 0.079671111 113.50717 31.393919 6768.3308 1.2804284e+08 0.034415391 0.082046256 113.57426 31.206080 6770.8951 1.2183457e+08 0.029324687 0.089050752 113.64748 31.018240 6773.4595 1.1656195e+08 0.024726062 0.095270392 113.71843 30.830399 6776.0238 1.1393876e+08 0.020131930 0.10149003 113.78552 30.642559 6778.5881 1.1040798e+08 0.015582274 0.10770967 113.85259 30.454754 6781.1525 1.0543399e+08 0.011060438 0.11392931 113.92560 30.250317 6783.7168 1.0141751e+08 0.0065277263 0.12014895 114.00342 30.032418 6786.2811 97121192. 0.0019955535 0.12636859 114.07050 29.844579 6788.8455 89970515. -0.0024978969 0.13258823 114.13759 29.661499 6791.4098 84114016. -0.0070049833 0.13880787 114.20468 29.478899 6793.9741 81469502. -0.011553206 0.14502751 114.27177 29.291059 6796.5385 77958684. -0.016089471 0.15124715 114.33884 29.103246 6799.1028 77310663. -0.020654416 0.15746679 114.40432 28.915434 6801.6671 73800679. -0.025192793 0.16368643 114.46470 28.727595 6804.2315 70736485. -0.029737449 0.16990607 114.54011 28.511698 6806.7958 69618594. -0.034295206 0.17612571 114.61046 28.308621 6809.3601 68631542. -0.038853965 0.18234535 114.67093 28.127397 6811.9245 67708328. -0.043411032 0.18856499 114.73801 27.939558 6814.4888 63277960. -0.047953995 0.19478463 114.80790 27.732085 6817.0531 61788285. -0.052507837 0.20100427 114.87695 27.517258 6819.6175 58665485. -0.057062071 0.20722391 114.93733 27.329419 6822.1818 56725154. -0.061616291 0.21344355 115.00301 27.146880 6824.7462 56080540. -0.066165058 0.21966318 115.06809 26.963739 6827.3105 52561320. -0.070735014 0.22588282 115.12846 26.775899 6829.8748 51841525. -0.075271897 0.23210246 115.19861 26.557661 6832.4392 48434019. -0.079828775 0.23832210 115.26421 26.357363 6835.0035 46044045. -0.084369337 0.24454174 115.32549 26.172908 6837.5678 46588643. -0.088857836 0.25076138 115.39795 25.947491 6840.1322 44749801. -0.093401800 0.25698102 115.46034 25.753401 6842.6965 42862586. -0.097965509 0.26320066 115.52071 25.567863 6845.2608 39493505. -0.10261209 0.26942030 115.58109 25.386732 6847.8252 37949775. -0.10724684 0.27563994 115.64488 25.167897 6850.3895 39965270. -0.11177011 0.28185958 115.70683 24.969513 6852.9538 40454091. -0.11641717 0.28807922 115.76865 24.783095 6855.5182 42326759. -0.12108952 0.29429886 115.84110 24.557679 6858.0825 42205622. -0.12602644 0.30051850 115.89708 24.371110 6860.6468 40923633. -0.13137599 0.30673814 115.95800 24.172879 6863.2112 41020698. -0.13777320 0.31295778 116.02928 23.948668 6865.7755 38648944. -0.15417458 0.31917742 116.09369 23.731302 6868.3398 39228148. -0.14884758 0.32539706 116.15446 23.540569 6870.9042 37341391. -0.13257814 0.33161670 116.21649 23.340584