# # 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 = 59.221659 km # Date (UTC) = 2013-12-30T09:54:33.708 # Date (julian) = 2456656.91289014 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.4968 5.3047540e+10 0.053183881 0.033036115 106.49331 33.068039 6504.6962 4.8712566e+10 0.062645354 0.033699347 106.55085 32.964474 6506.8957 4.5255074e+10 0.072536631 0.034362580 106.60839 32.860901 6509.0951 4.2459504e+10 0.082881736 0.035025812 106.66593 32.757323 6511.2945 3.9863710e+10 0.093586654 0.035689045 106.72391 32.652964 6513.4940 3.7168691e+10 0.10453583 0.036352277 106.78864 32.536452 6515.6934 3.4336240e+10 0.11568023 0.037015510 106.85337 32.419941 6517.8928 3.1617910e+10 0.12710685 0.037678742 106.90990 32.313049 6520.0923 2.9281576e+10 0.13894267 0.038341975 106.96360 32.209485 6522.2917 2.7228200e+10 0.15033771 0.038993632 107.01782 32.105920 6524.4911 2.5383664e+10 0.15691858 0.039601431 107.07536 32.002357 6526.6905 2.3655372e+10 0.16235579 0.040392042 107.13290 31.898794 6528.8900 2.1953212e+10 0.16655387 0.042148502 107.19195 31.788382 6531.0894 2.0200251e+10 0.17011879 0.045358811 107.25237 31.671870 6533.2888 1.8454578e+10 0.17380963 0.047642334 107.31217 31.558094 6535.4883 1.6875811e+10 0.17478347 0.048012488 107.36971 31.454516 6537.6877 1.5542854e+10 0.17592520 0.049009445 107.42725 31.350938 6539.8871 1.4435343e+10 0.17635856 0.050717475 107.48247 31.247369 6542.0866 1.3469969e+10 0.17446771 0.051035101 107.53617 31.143805 6544.2860 1.2586954e+10 0.17243803 0.051876349 107.58990 31.040193 6546.4854 1.1694391e+10 0.17023849 0.052863949 107.65027 30.923760 6548.6849 1.0790980e+10 0.16814181 0.053872166 107.71069 30.807248 6550.8843 9.9486954e+09 0.16621026 0.055206776 107.76654 30.699544 6553.0837 9.2364410e+09 0.16473994 0.055292986 107.82024 30.595980 6555.2831 8.6498953e+09 0.16267907 0.054615456 107.87394 30.492416 6557.4826 8.1563578e+09 0.16046028 0.053563628 107.92764 30.388851 6559.6820 7.7051491e+09 0.15791373 0.052310202 107.98133 30.285287 6561.8814 7.2731498e+09 0.15516147 0.050938329 108.03616 30.175679 6564.0809 6.8192730e+09 0.15223972 0.048734948 108.09226 30.059150 6566.2803 6.3689120e+09 0.15022529 0.047024321 108.14801 29.944554 6568.4797 5.9810158e+09 0.14856208 0.045330678 108.20171 29.840991 6570.6792 5.6432999e+09 0.14700137 0.044636178 108.25541 29.737427 6572.8786 5.3557277e+09 0.14516039 0.043727010 108.30703 29.635943 6575.0780 5.0893389e+09 0.14290816 0.042296428 108.35689 29.536214 6577.2775 4.8292574e+09 0.14023676 0.039784563 108.40676 29.436485 6579.4769 4.5538455e+09 0.13730884 0.036808334 108.46649 29.321065 6581.6763 4.2657564e+09 0.13481300 0.035391812 108.52690 29.204553 6583.8757 3.9889277e+09 0.13234768 0.034578404 108.58080 29.096038 6586.0752 3.7717805e+09 0.12974080 0.033170324 108.63066 28.992474 6588.2746 3.5874415e+09 0.12745123 0.033288226 108.68060 28.888748 6590.4740 3.4022158e+09 0.12452602 0.030180287 108.73670 28.772244 6592.6735 3.2097877e+09 0.12195630 0.027419385 108.79280 28.655716 6594.8729 3.0243095e+09 0.11966827 0.025693345 108.84458 28.550839 6597.0723 2.8739722e+09 0.11735995 0.025699903 108.89445 28.451110 6599.2718 2.7410114e+09 0.11597447 0.024946075 108.94431 28.351050 6601.4712 2.6233570e+09 0.11604844 0.027267593 108.99417 28.247486 6603.6706 2.5063870e+09 0.11491530 0.026266268 109.04404 28.143922 6605.8701 2.3863004e+09 0.11467302 0.027394947 109.09689 28.034151 6608.0695 2.2611374e+09 0.11273861 0.023730535 109.15299 27.917639 6610.2689 2.1378557e+09 0.10995553 0.024259918 109.20807 27.803846 6612.4683 2.0236306e+09 0.10826442 0.023970824 109.25794 27.704117 6614.6678 1.9249979e+09 0.10732874 0.023480423 109.30781 27.604389 6616.8672 1.8434653e+09 0.10596433 0.023418407 109.35767 27.502525 6619.0666 1.7692031e+09 0.10523793 0.024541992 109.40754 27.398947 6621.2661 1.7016806e+09 0.10432482 0.025001258 109.45741 27.295370 6623.4655 1.6256277e+09 0.10262857 0.024664285 109.50910 27.183620 6625.6649 1.5388168e+09 0.10139244 0.026191062 109.56088 27.071424 6627.8644 1.4600040e+09 0.099575489 0.025650698 109.61146 26.964673 6630.0638 1.3953143e+09 0.098093028 0.025928459 109.66132 26.861108 6632.2632 1.3464511e+09 0.096101421 0.026063907 109.71123 26.757339 6634.4627 1.2933666e+09 0.094388055 0.026360591 109.76301 26.645143 6636.6621 1.2281341e+09 0.092689933 0.026292640 109.81480 26.532947 6638.8615 1.1655523e+09 0.091413859 0.025634109 109.86522 26.426847 6641.0609 1.1125552e+09 0.091920583 0.025148507 109.91509 26.323283 6643.2604 1.0711328e+09 0.091389100 0.025231932 109.96514 26.218859 6645.4598 1.0317343e+09 0.090491335 0.025667085 110.01693 26.106646 6647.6592 9.8529672e+08 0.089638939 0.026784870 110.06872 25.994433 6649.8587 9.3983274e+08 0.089015768 0.026450060 110.11601 25.888986 6652.0581 9.0080510e+08 0.088619393 0.027266505 110.16203 25.785423 6654.2575 8.6246569e+08 0.087974318 0.027926517 110.20907 25.680347 6656.4570 8.2890114e+08 0.086204294 0.028424486 110.26085 25.568151 6658.6564 7.8891472e+08 0.084785634 0.031225196 110.31264 25.455955 6660.8558 7.5330888e+08 0.083484113 0.032403896 110.35948 25.354453 6663.0552 7.2629276e+08 0.082256505 0.032467902 110.40551 25.254724 6665.2547 6.9828814e+08 0.081672079 0.028129828 110.45299 25.150787 6667.4541 6.7163030e+08 0.081100156 0.027270260 110.50477 25.034276 6669.6535 6.3836830e+08 0.080267846 0.027684470 110.55655 24.917764 6671.8530 6.0821518e+08 0.080109662 0.026877504 110.60297 24.816905 6674.0524 5.8651600e+08 0.079178575 0.028998996 110.64900 24.717163 6676.2518 5.6659563e+08 0.076740156 0.031876029 110.69691 24.613354 6678.4513 5.4908807e+08 0.075628287 0.030634789 110.74870 24.501157 6680.6507 5.2994943e+08 0.076078530 0.029581929 110.80043 24.388961 6682.8501 5.0692875e+08 0.076607804 0.031074072 110.84791 24.276765 6685.0496 4.8492716e+08 0.076311609 0.032757182 110.89538 24.164569 6687.2490 4.6380447e+08 0.074296733 0.034204037 110.94185 24.058345 6689.4484 4.4366911e+08 0.071662002 0.033612376 110.98788 23.954781 6691.6478 4.3076170e+08 0.070565481 0.032848413 111.03402 23.850485 6693.8473 4.1428584e+08 0.069596019 0.031313419 111.08149 23.738288 6696.0467 3.9560088e+08 0.069501271 0.029695193 111.12896 23.626092 6698.2461 3.7693242e+08 0.068648559 0.030555674 111.17974 23.513896 6700.4456 3.5760104e+08 0.066988824 0.030998211 111.23152 23.401700 6702.6450 3.4420903e+08 0.066039240 0.033391767 111.27899 23.295115 6704.8444 3.3414056e+08 0.066231987 0.036592215 111.32119 23.195386 6707.0439 3.2598802e+08 0.065783178 0.040180543 111.36338 23.095658 6709.2433 3.1458936e+08 0.065031265 0.040977796 111.41002 22.985405 6711.4427 3.0214385e+08 0.063069714 0.041195933 111.45750 22.873191 6713.6422 2.8931935e+08 0.060848342 0.046009164 111.50724 22.760986 6715.8416 2.7846647e+08 0.058907681 0.048239339 111.55902 22.648790 6718.0410 2.6806240e+08 0.056667330 0.049876295 111.60990 22.536594 6720.2404 2.5431653e+08 0.055594968 0.050391906 111.65737 22.424397 6722.4399 2.4272495e+08 0.055145159 0.050061399 111.70484 22.312201 6724.6393 2.3461704e+08 0.051497693 0.044588016 111.74760 22.211117 6726.8387 2.2920615e+08 0.048786083 0.040958932 111.78980 22.111390 6729.0382 2.2180944e+08 0.048204617 0.041019985 111.83349 22.008119 6731.2376 2.1359155e+08 0.046127927 0.042222896 111.88096 21.895923 6733.4370 2.0545143e+08 0.044702577 0.046297083 111.92842 21.783726 6735.6365 1.9922230e+08 0.045400345 0.049969085 111.97589 21.671530 6737.8359 1.9300362e+08 0.046620005 0.056798326 112.02336 21.559333 6740.0353 1.8597531e+08 0.046328342 0.064110708 112.07083 21.447136 6742.2348 1.8242805e+08 0.043691551 0.069182776 112.11830 21.334940 6744.4342 1.7574239e+08 0.039189124 0.078129244 112.16433 21.222738 6746.6336 1.6978796e+08 0.035634589 0.071620775 112.20749 21.110525 6748.8330 1.6130378e+08 0.034060333 0.071399591 112.25072 20.998312 6751.0325 1.5052263e+08 0.030893648 0.073725403 112.29818 20.886116 6753.2319 1.4586841e+08 0.027925584 0.073727789 112.34565 20.773919 6755.4313 1.4113352e+08 0.025656477 0.074416231 112.39312 20.661723 6757.6308 1.3706232e+08 0.023886872 0.074825836 112.44059 20.549526 6759.8302 1.3472536e+08 0.024577023 0.076020296 112.48805 20.438970 6762.0296 1.2635617e+08 0.027998037 0.078003046 112.53552 20.331089 6764.2291 1.2203308e+08 0.030903704 0.079494259 112.58272 20.222937 6766.4285 1.2060140e+08 0.031929131 0.080683007 112.62587 20.110740 6768.6279 1.1867730e+08 0.027819094 0.083115444 112.66902 19.998544 6770.8274 1.1968592e+08 0.023633702 0.088886399 112.71539 19.886348 6773.0268 1.1600504e+08 0.019566495 0.094220986 112.76286 19.774152 6775.2262 1.0944164e+08 0.015401910 0.099555572 112.81112 19.655091 6777.4256 1.0250804e+08 0.011219083 0.10489016 112.86044 19.526865 6779.6251 95971374. 0.0070500708 0.11022475 112.90728 19.406788 6781.8245 92661588. 0.0030690417 0.11555933 112.95044 19.298906 6784.0239 91445838. -0.00076046523 0.12089392 112.99395 19.190666 6786.2234 89426392. -0.0045956690 0.12622850 113.04142 19.078470 6788.4228 86798078. -0.0084222244 0.13156309 113.08888 18.966273 6790.6222 83269048. -0.012264271 0.13689768 113.13305 18.854077 6792.8217 81885173. -0.015939008 0.14223226 113.17620 18.741881 6795.0211 77404656. -0.019799181 0.14756685 113.22212 18.624707 6797.2205 74328694. -0.023556924 0.15290144 113.27144 18.501412 6799.4200 73470433. -0.027155009 0.15823602 113.31816 18.382780 6801.6194 69889739. -0.030938033 0.16357061 113.36132 18.270567 6803.8188 67817877. -0.034615859 0.16890520 113.40493 18.158803 6806.0182 63731479. -0.038455402 0.17423978 113.45240 18.050922 6808.2177 61578599. -0.042174639 0.17957437 113.49986 17.943040 6810.4171 62279031. -0.045712515 0.18490896 113.54879 17.819158 6812.6165 59991908. -0.049515777 0.19024354 113.59810 17.690931 6814.8160 56318289. -0.053494055 0.19557813 113.64274 17.578142 6817.0154 55474468. -0.057340833 0.20091272 113.68589 17.470261 6819.2148 55498708. -0.061224818 0.20624730 113.73177 17.353400 6821.4143 54645129. -0.065325130 0.21158189 113.78109 17.225173 6823.6137 52075909. -0.069805276 0.21691647 113.82836 17.098986 6825.8131 47897562. -0.074862442 0.22225106 113.87275 16.975691 6828.0126 45050360. -0.080374796 0.22758565 113.91666 16.856681 6830.2120 45229346. -0.086191934 0.23292023 113.95981 16.744484 6832.4114 43925684. -0.093887454 0.23825482 114.00339 16.631524 6834.6108 41814517. -0.10645286 0.24358941 114.05271 16.508229 6836.8103 42327523. -0.15430640 0.24892399 114.10202 16.384934 6839.0097 42294417. -0.12219838 0.25425858 114.15134 16.261638 6841.2091 44433826. -0.050545928 0.25959317 114.20057 16.138502