# # 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 = 60.846304 km # Date (UTC) = 2011-12-07T09:51:19.339 # Date (julian) = 2455902.91064050 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6512.3612 8.3979009e+10 0.10751526 0.036010700 105.38803 32.313541 6514.9102 7.2227404e+10 0.11938823 0.036779337 105.45472 32.193502 6517.4592 6.2499440e+10 0.13144642 0.037547974 105.52297 32.064047 6520.0081 5.4387863e+10 0.14368559 0.038316612 105.59299 31.924018 6522.5571 4.7476516e+10 0.15457735 0.039063139 105.65934 31.793419 6525.1061 4.2104001e+10 0.16066251 0.039770106 105.72157 31.673396 6527.6551 3.7809806e+10 0.16459151 0.041192062 105.78553 31.550044 6530.2041 3.3930454e+10 0.16798118 0.044114364 105.85555 31.415015 6532.7530 3.0361859e+10 0.17018864 0.047313268 105.92384 31.282334 6535.3020 2.7284784e+10 0.17052341 0.048093288 105.98607 31.157866 6537.8510 2.4712645e+10 0.17068877 0.049086426 106.04830 31.033398 6540.4000 2.2386114e+10 0.17057660 0.051043053 106.11812 30.898638 6542.9489 2.0171584e+10 0.16923218 0.051362507 106.18814 30.763589 6545.4979 1.8219544e+10 0.16817496 0.052460028 106.25058 30.643167 6548.0469 1.6648309e+10 0.16736959 0.053681649 106.31282 30.523144 6550.5959 1.5306477e+10 0.16620878 0.055134560 106.37706 30.392259 6553.1448 1.4048876e+10 0.16481196 0.055262255 106.44207 30.257230 6555.6938 1.2851912e+10 0.16212805 0.054270388 106.50507 30.133070 6558.2428 1.1793911e+10 0.15922429 0.053032409 106.56731 30.013048 6560.7918 1.0939534e+10 0.15531314 0.051560421 106.62743 29.890914 6563.3408 1.0223052e+10 0.15200672 0.049534193 106.68522 29.766445 6565.8897 9.5475246e+09 0.14913747 0.047308096 106.74464 29.639595 6568.4387 8.8692285e+09 0.14745963 0.045368385 106.80966 29.504546 6570.9877 8.1932131e+09 0.14592351 0.044508376 106.87406 29.372891 6573.5367 7.6187796e+09 0.14410800 0.043226823 106.93629 29.252868 6576.0856 7.1542634e+09 0.14185633 0.041272820 106.99852 29.132845 6578.6346 6.7177057e+09 0.13934711 0.037647480 107.06347 28.998173 6581.1836 6.2860342e+09 0.13696848 0.035541014 107.12848 28.863145 6583.7326 5.8784381e+09 0.13501940 0.034650872 107.18644 28.742772 6586.2815 5.5311603e+09 0.13289905 0.033167657 107.24423 28.622749 6588.8305 5.2121146e+09 0.13099595 0.033102574 107.30364 28.491815 6591.3795 4.8867981e+09 0.12835321 0.028773685 107.36365 28.356786 6593.9285 4.5838943e+09 0.12573126 0.026239016 107.42205 28.232663 6596.4775 4.3214128e+09 0.12256607 0.025725103 107.47985 28.112624 6599.0264 4.0796561e+09 0.12012304 0.024931320 107.54110 27.985416 6601.5754 3.8341015e+09 0.11979264 0.027316676 107.60611 27.850388 6604.1244 3.5879146e+09 0.11795314 0.026145134 107.66554 27.722543 6606.6734 3.3759418e+09 0.11675024 0.026293947 107.71888 27.602520 6609.2223 3.2036453e+09 0.11276314 0.023771978 107.77324 27.482497 6611.7713 3.0618189e+09 0.10898882 0.024466582 107.83103 27.362473 6614.3203 2.9267433e+09 0.10708682 0.023719820 107.88882 27.242449 6616.8693 2.7797076e+09 0.10515758 0.023418732 107.94879 27.107728 6619.4183 2.6333995e+09 0.10446810 0.024626831 108.00880 26.972699 6621.9672 2.4938493e+09 0.10365981 0.024768855 108.06228 26.856717 6624.5162 2.3756645e+09 0.10209098 0.025138632 108.11563 26.741124 6627.0652 2.2673219e+09 0.10027201 0.025341989 108.17751 26.611329 6629.6142 2.1539139e+09 0.099317829 0.025998063 108.24252 26.476302 6632.1631 2.0488357e+09 0.097622225 0.026051907 108.29900 26.352245 6634.7121 1.9528774e+09 0.096200428 0.026378788 108.35234 26.232222 6637.2611 1.8729022e+09 0.094619041 0.026033537 108.40890 26.104972 6639.8101 1.7948909e+09 0.094167827 0.025338538 108.46891 25.969943 6642.3590 1.7069384e+09 0.094307148 0.025166389 108.52893 25.834914 6644.9080 1.6144674e+09 0.093264012 0.025441744 108.58894 25.699886 6647.4570 1.5267919e+09 0.091947505 0.026678393 108.64359 25.574241 6650.0060 1.4541845e+09 0.090944321 0.026256605 108.69249 25.458664 6652.5550 1.3941686e+09 0.090145416 0.027403211 108.74398 25.338553 6655.1039 1.3310791e+09 0.088680627 0.027653161 108.80400 25.203505 6657.6529 1.2671920e+09 0.086444452 0.029658465 108.86246 25.071966 6660.2019 1.2088624e+09 0.084546100 0.031809502 108.91580 24.951943 6662.7509 1.1590923e+09 0.082660863 0.032622993 108.96915 24.831917 6665.2998 1.1171295e+09 0.081564926 0.028055832 109.02413 24.702051 6667.8488 1.0665335e+09 0.080543035 0.027415243 109.07915 24.572022 6670.3978 1.0111158e+09 0.079659053 0.027144341 109.13908 24.437073 6672.9468 9.6063093e+08 0.079168231 0.027428365 109.19909 24.302049 6675.4957 9.1937622e+08 0.077099256 0.030747898 109.24815 24.186173 6678.0447 8.8676719e+08 0.075620263 0.030906699 109.29705 24.070596 6680.5937 8.5610468e+08 0.076112536 0.029569622 109.35412 23.940717 6683.1427 8.1878521e+08 0.076953266 0.031397681 109.41414 23.805688 6685.6917 7.7475112e+08 0.076672733 0.033435398 109.47047 23.674339 6688.2406 7.3458051e+08 0.074027579 0.033840737 109.52548 23.544311 6690.7896 7.0111651e+08 0.072235273 0.033025373 109.57600 23.421636 6693.3386 6.7444331e+08 0.071191113 0.031487932 109.62491 23.301597 6695.8876 6.5183452e+08 0.070702723 0.029696438 109.67678 23.176695 6698.4365 6.2486497e+08 0.069604676 0.030817023 109.73180 23.046668 6700.9855 5.9911086e+08 0.067472739 0.031398706 109.78681 22.914204 6703.5345 5.6943539e+08 0.067237681 0.035012718 109.84182 22.779175 6706.0835 5.3951395e+08 0.067274849 0.038591685 109.89385 22.653633 6708.6325 5.1738157e+08 0.066672155 0.040732296 109.94275 22.538055 6711.1814 4.9721192e+08 0.064686670 0.040898649 109.99310 22.419037 6713.7304 4.8217370e+08 0.062073663 0.046328346 110.04811 22.289010 6716.2794 4.6482535e+08 0.059851681 0.048812866 110.10312 22.157790 6718.8284 4.4266911e+08 0.057090263 0.051102523 110.15813 22.022761 6721.3773 4.2478763e+08 0.057241680 0.050417593 110.21314 21.888923 6723.9263 4.0424908e+08 0.055243794 0.049885565 110.26816 21.758877 6726.4753 3.8564930e+08 0.051029502 0.040955654 110.32318 21.628835 6729.0243 3.7058427e+08 0.050392232 0.041029251 110.37819 21.498808 6731.5732 3.5419080e+08 0.048325484 0.042890891 110.43201 21.367579 6734.1222 3.4241876e+08 0.047216494 0.049346246 110.48202 21.232550 6736.6712 3.2730550e+08 0.049384388 0.052892519 110.53323 21.098724 6739.2202 3.1236069e+08 0.050365306 0.063096007 110.58824 20.968698 6741.7692 2.9986492e+08 0.048500185 0.067952366 110.64205 20.838672 6744.3181 2.8778881e+08 0.043564647 0.078039479 110.69206 20.708645 6746.8671 2.7582494e+08 0.039190277 0.068906165 110.74328 20.578617 6749.4161 2.6255996e+08 0.037875692 0.072164008 110.79829 20.448590 6751.9651 2.5268843e+08 0.033844135 0.074119705 110.85209 20.318563 6754.5140 2.4312533e+08 0.032365422 0.075386829 110.90210 20.188536 6757.0630 2.3506867e+08 0.029378428 0.076548814 110.95333 20.058509 6759.6120 2.2670010e+08 0.030568844 0.075967639 111.00834 19.928481 6762.1610 2.1755094e+08 0.034573918 0.077791183 111.06214 19.798453 6764.7099 2.1179239e+08 0.037908555 0.079517297 111.11215 19.668426 6767.2589 2.0520038e+08 0.037564297 0.081685835 111.16216 19.538394 6769.8079 1.9811209e+08 0.032061753 0.086413782 111.21217 19.408347 6772.3569 1.9025290e+08 0.027430610 0.092596172 111.26219 19.278305 6774.9059 1.8185809e+08 0.022796147 0.098778563 111.31220 19.148278 6777.4548 1.7622462e+08 0.018118901 0.10496095 111.36221 19.018251 6780.0038 1.6950930e+08 0.013439869 0.11114334 111.41222 18.888224 6782.5528 1.6174565e+08 0.0087640006 0.11732573 111.46398 18.753653 6785.1018 1.5374342e+08 0.0040946229 0.12350812 111.52114 18.605047 6787.6507 1.4678023e+08 -0.00057379119 0.12969051 111.57476 18.465638 6790.1997 1.4258618e+08 -0.0052504351 0.13587290 111.62477 18.335610 6792.7487 1.3946547e+08 -0.0099356800 0.14205529 111.67478 18.205583 6795.2977 1.3496403e+08 -0.014632514 0.14823768 111.72479 18.075556 6797.8467 1.2982624e+08 -0.019347170 0.15442008 111.77834 17.936317 6800.3956 1.2578972e+08 -0.024078768 0.16060247 111.83549 17.787711 6802.9446 1.2086513e+08 -0.028829086 0.16678486 111.88732 17.652969 6805.4936 1.1749047e+08 -0.033585379 0.17296725 111.93733 17.522941 6808.0426 1.1211924e+08 -0.038372673 0.17914964 111.99268 17.383310 6810.5915 1.0725185e+08 -0.043174456 0.18533203 112.04982 17.240438 6813.1405 1.0416581e+08 -0.047960756 0.19151442 112.09987 17.110355 6815.6895 1.0015692e+08 -0.052776935 0.19769681 112.14988 16.980301 6818.2385 96513938. -0.057598752 0.20387920 112.20131 16.831769 6820.7874 91397117. -0.062494594 0.21006159 112.25239 16.687768 6823.3364 87200177. -0.067400947 0.21624398 112.30240 16.557741 6825.8854 83613698. -0.072331168 0.22242637 112.35419 16.424520 6828.4344 81619566. -0.077244000 0.22860876 112.41135 16.281629 6830.9834 80449912. -0.082199797 0.23479115 112.46245 16.145154 6833.5323 75775573. -0.087587824 0.24097354 112.50746 16.015127 6836.0813 72728857. -0.093239559 0.24715593 112.55853 15.875827 6838.6303 70065367. -0.099600582 0.25333832 112.61568 15.727221 6841.1793 62894854. -0.10918852 0.25952071 112.66855 15.582900 6843.7282 58164666. -0.14137865 0.26570310 112.72001 15.439999 6846.2772 51515695. -0.12574441 0.27188549 112.77715 15.291405 6848.8262 50219704. -0.073351303 0.27806788 112.83127 15.148702