# # 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 = 57.559547 km # Date (UTC) = 2013-11-29T09:55:53.361 # Date (julian) = 2456625.91381205 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6504.5547 5.5405540e+10 0.062344562 0.033656656 106.17148 28.895937 6506.5469 5.1643236e+10 0.071103841 0.034257420 106.22230 28.783515 6508.5392 4.7943577e+10 0.080070781 0.034858183 106.27311 28.674069 6510.5315 4.4570212e+10 0.089327662 0.035458947 106.32392 28.564623 6512.5237 4.1381763e+10 0.098805982 0.036059710 106.36850 28.463492 6514.5160 3.8622903e+10 0.10863206 0.036660473 106.41019 28.366208 6516.5083 3.6301284e+10 0.11885313 0.037261237 106.45189 28.268924 6518.5005 3.4077545e+10 0.12934873 0.037862000 106.50093 28.161843 6520.4928 3.1834789e+10 0.14004810 0.038462763 106.55174 28.052396 6522.4851 2.9570913e+10 0.14958862 0.039044276 106.60159 27.942950 6524.4774 2.7398072e+10 0.15527283 0.039596542 106.64850 27.833504 6526.4696 2.5360845e+10 0.15957304 0.040160430 106.69540 27.724058 6528.4619 2.3489599e+10 0.16378653 0.041808901 106.74231 27.614612 6530.4542 2.1683613e+10 0.16743301 0.044464511 106.78922 27.505165 6532.4464 2.0097916e+10 0.17074480 0.047057135 106.83590 27.397306 6534.4387 1.8766754e+10 0.17220128 0.048067278 106.88106 27.300021 6536.4310 1.7696876e+10 0.17247326 0.048176097 106.92623 27.202737 6538.4232 1.6795071e+10 0.17354516 0.049362773 106.97184 27.102381 6540.4155 1.5842582e+10 0.17366957 0.051050396 107.01875 26.992918 6542.4078 1.4836284e+10 0.17210259 0.051157051 107.06566 26.883456 6544.4000 1.3793363e+10 0.17037228 0.051968868 107.11257 26.774005 6546.3923 1.2769786e+10 0.16826442 0.052787333 107.15947 26.664558 6548.3846 1.1846378e+10 0.16671486 0.053782494 107.20520 26.557239 6550.3768 1.1072496e+10 0.16536794 0.055079719 107.24341 26.463429 6552.3691 1.0463507e+10 0.16395348 0.055493860 107.28163 26.369619 6554.3614 9.9403442e+09 0.16192918 0.054839964 107.32209 26.271778 6556.3537 9.4079913e+09 0.16000465 0.053961132 107.36900 26.162332 6558.3459 8.8508099e+09 0.15826502 0.052944537 107.41591 26.052886 6560.3382 8.3056816e+09 0.15619200 0.051969387 107.46281 25.943440 6562.3305 7.7953540e+09 0.15403676 0.050565459 107.50972 25.833993 6564.3227 7.3170279e+09 0.15167102 0.048625337 107.55663 25.724546 6566.3150 6.8548949e+09 0.14991513 0.047004692 107.60353 25.615100 6568.3073 6.4356033e+09 0.14867135 0.045489212 107.65043 25.505654 6570.2995 6.0656887e+09 0.14755190 0.044793432 107.69228 25.405314 6572.2918 5.7644645e+09 0.14606966 0.044063048 107.73050 25.311493 6574.2841 5.5116981e+09 0.14389913 0.042718567 107.76873 25.217672 6576.2763 5.2605426e+09 0.14182512 0.041053320 107.81307 25.112833 6578.2686 5.0138420e+09 0.13953825 0.038225450 107.85998 25.003387 6580.2609 4.7571871e+09 0.13723803 0.036279664 107.90631 24.893940 6582.2531 4.4987210e+09 0.13502201 0.035224907 107.94931 24.784494 6584.2454 4.2452843e+09 0.13277301 0.034381824 107.99230 24.675047 6586.2377 4.0145899e+09 0.13077853 0.033168224 108.03249 24.572757 6588.2300 3.8227992e+09 0.12943756 0.033303137 108.07071 24.475474 6590.2222 3.6696877e+09 0.12767207 0.030648701 108.10893 24.378190 6592.2145 3.5205763e+09 0.12571042 0.027865191 108.15332 24.275044 6594.2068 3.3625548e+09 0.12380954 0.026059023 108.20022 24.169507 6596.1990 3.1886628e+09 0.12162943 0.025726369 108.24653 24.063375 6598.1913 3.0105888e+09 0.12032638 0.025315834 108.28953 23.953929 6600.1836 2.8490264e+09 0.12012365 0.025367251 108.33252 23.844482 6602.1758 2.7031302e+09 0.11982966 0.027366584 108.37269 23.744310 6604.1681 2.5895685e+09 0.11864666 0.026171090 108.41091 23.650488 6606.1604 2.4908724e+09 0.11832843 0.027215781 108.44913 23.556667 6608.1526 2.3943748e+09 0.11621014 0.023728336 108.49078 23.451662 6610.1449 2.2963850e+09 0.11352077 0.024141436 108.53377 23.342215 6612.1372 2.1891542e+09 0.11153219 0.024218258 108.57677 23.233384 6614.1294 2.0816610e+09 0.11066078 0.023851309 108.61977 23.127846 6616.1217 1.9775817e+09 0.10927461 0.023301402 108.66276 23.022309 6618.1140 1.8826427e+09 0.10873364 0.023856868 108.70576 22.914430 6620.1063 1.7947330e+09 0.10804648 0.024801437 108.74876 22.804984 6622.0985 1.7089693e+09 0.10678447 0.024731769 108.79142 22.696176 6624.0908 1.6345819e+09 0.10485885 0.024910909 108.82616 22.602366 6626.0831 1.5692589e+09 0.10357060 0.026485079 108.86091 22.508556 6628.0753 1.5127135e+09 0.10173311 0.025733679 108.89699 22.412839 6630.0676 1.4565431e+09 0.10031320 0.025928468 108.93999 22.307302 6632.0599 1.3961193e+09 0.098722222 0.026039524 108.98298 22.201764 6634.0521 1.3346885e+09 0.097566009 0.026330646 109.02598 22.093865 6636.0444 1.2716398e+09 0.096496072 0.026532509 109.06898 21.984418 6638.0367 1.2140798e+09 0.095863506 0.025670045 109.11160 21.875690 6640.0289 1.1642734e+09 0.095946933 0.025267111 109.14635 21.781868 6642.0212 1.1242372e+09 0.096113411 0.025152564 109.18109 21.688046 6644.0135 1.0891877e+09 0.095130641 0.025345063 109.21723 21.592254 6646.0057 1.0521126e+09 0.094250261 0.025923122 109.26023 21.486716 6647.9980 1.0150597e+09 0.093375166 0.026963239 109.30322 21.381179 6649.9903 9.7866279e+08 0.092635604 0.026268630 109.34384 21.273258 6651.9826 9.3753829e+08 0.092084180 0.027237150 109.38292 21.163811 6653.9748 8.9891090e+08 0.091425799 0.028023370 109.42221 21.054566 6655.9671 8.6194991e+08 0.089734034 0.028009820 109.46521 20.949029 6657.9594 8.2418818e+08 0.088384463 0.030013937 109.50821 20.843493 6659.9516 7.8674543e+08 0.087012004 0.031636088 109.54927 20.737955 6661.9439 7.4682749e+08 0.085592636 0.033015696 109.58836 20.632417 6663.9362 7.1484814e+08 0.084228032 0.032223778 109.62745 20.526879 6665.9284 6.9048043e+08 0.084149065 0.027025859 109.66248 20.432305 6667.9207 6.7438358e+08 0.083221273 0.027441648 109.69723 20.338495 6669.9130 6.5747124e+08 0.082317843 0.027418017 109.73222 20.244021 6671.9052 6.3701660e+08 0.081849798 0.026878249 109.77130 20.138484 6673.8975 6.1512429e+08 0.080985879 0.028801508 109.81039 20.032946 6675.8898 5.9008978e+08 0.078913338 0.031502608 109.84948 19.927401 6677.8820 5.6746995e+08 0.077931855 0.031104297 109.88858 19.821848 6679.8743 5.4492752e+08 0.078094409 0.029545277 109.92767 19.716294 6681.8666 5.2354519e+08 0.078883851 0.030322188 109.96676 19.610756 6683.8589 5.0606880e+08 0.079157048 0.032447239 110.00584 19.505220 6685.8511 4.9025189e+08 0.078722121 0.033603832 110.04493 19.399682 6687.8434 4.7665037e+08 0.076528437 0.033872533 110.08402 19.294144 6689.8357 4.5806404e+08 0.074592666 0.033263797 110.12311 19.188606 6691.8279 4.3917995e+08 0.073657418 0.032805927 110.16220 19.083068 6693.8202 4.1872295e+08 0.072852141 0.031322711 110.20129 18.977531 6695.8125 3.9890518e+08 0.072781192 0.029710233 110.24038 18.871993 6697.8047 3.8650395e+08 0.072048236 0.030193106 110.27946 18.766456 6699.7970 3.6900835e+08 0.070680492 0.030855027 110.31855 18.660918 6701.7893 3.5850668e+08 0.068968822 0.032567531 110.35457 18.563673 6703.7815 3.4903660e+08 0.069107078 0.035630897 110.38931 18.469864 6705.7738 3.4193526e+08 0.069022634 0.038044282 110.42405 18.376056 6707.7661 3.3619672e+08 0.068548239 0.040077087 110.46240 18.272525 6709.7583 3.2496060e+08 0.067524860 0.040650198 110.50149 18.166987 6711.7506 3.1283961e+08 0.065561353 0.041546227 110.54057 18.061449 6713.7429 2.9953736e+08 0.063569048 0.046373475 110.57966 17.955911 6715.7352 2.8914554e+08 0.061865224 0.048130481 110.61875 17.850374 6717.7274 2.7904295e+08 0.059893104 0.049829274 110.65506 17.744825 6719.7197 2.7217719e+08 0.058422714 0.050686081 110.69024 17.639272 6721.7120 2.6780638e+08 0.058558610 0.050518416 110.72603 17.533721 6723.7042 2.5772653e+08 0.056969223 0.049761704 110.76512 17.428184 6725.6965 2.4954892e+08 0.053129491 0.041140952 110.80420 17.322647 6727.6888 2.3716042e+08 0.052269608 0.040042754 110.84096 17.219439 6729.6810 2.2829797e+08 0.051348142 0.040591501 110.87614 17.117811 6731.6733 2.2349130e+08 0.049648410 0.043090021 110.91168 17.015469 6733.6656 2.1182959e+08 0.048677601 0.047537889 110.95635 16.894851 6735.6578 2.0030756e+08 0.049806627 0.049991778 111.00103 16.774233 6737.6501 1.9326517e+08 0.051033667 0.056206503 111.03811 16.665666 6739.6424 1.8345283e+08 0.051119940 0.063612700 111.07329 16.560128 6741.6346 1.8153689e+08 0.049226987 0.067568740 111.10941 16.454591 6743.6269 1.7576722e+08 0.044994043 0.075276593 111.14850 16.349053 6745.6192 1.6758804e+08 0.043116026 0.078827186 111.18758 16.243516 6747.6115 1.6673875e+08 0.038569050 0.067150661 111.22400 16.140646 6749.6037 1.6017419e+08 0.036868102 0.072112634 111.25919 16.039018 6751.5960 1.5717646e+08 0.033890131 0.073963659 111.29485 15.936905 6753.5883 1.5404744e+08 0.031976158 0.074881003 111.33394 15.831367 6755.5805 1.4865209e+08 0.029704017 0.074350821 111.37303 15.725830 6757.5728 1.4525526e+08 0.028006654 0.075001772 111.40990 15.622504 6759.5651 1.4038478e+08 0.028542072 0.075956314 111.44508 15.520875 6761.5573 1.3540427e+08 0.030431759 0.078014272 111.48030 15.419105 6763.5496 1.3191073e+08 0.034111281 0.078111591 111.52051 15.298488 6765.5419 1.2735008e+08 0.035845860 0.079630114 111.56071 15.177871 6767.5341 1.2410347e+08 0.034136344 0.081377667 111.59705 15.071855 6769.5264 1.2136843e+08 0.029552463 0.085731034 111.63223 14.970226 6771.5187 1.1622762e+08 0.025764744 0.090563162 111.66741 14.867772 6773.5109 1.1351648e+08 0.022004361 0.095395289 111.70260 14.762218 6775.5032 1.0927307e+08 0.018234778 0.10022742 111.73778 14.656665 6777.4955 1.0545778e+08 0.014478228 0.10505954 111.77296 14.553673 6779.4878 1.0502626e+08 0.010798422 0.10989167 111.80814 14.452044 6781.4800 98846353. 0.0070110908 0.11472380 111.84379 14.348625 6783.4723 95896543. 0.0033068916 0.11955593 111.88400 14.228008 6785.4646 93034367. -0.00038495623 0.12438806 111.92420 14.107391 6787.4568 88867747. -0.0041057455 0.12922018 111.96345 14.003024 6789.4491 90066099. -0.0076357207 0.13405231 112.00254 13.901396 6791.4414 88087776. -0.011259388 0.13888444 112.04063 13.795447 6793.4336 83070389. -0.014987652 0.14371657 112.07637 13.679298 6795.4259 77960276. -0.018730149 0.14854869 112.11208 13.563774 6797.4182 72652348. -0.022507480 0.15338082 112.14725 13.458237 6799.4104 73738000. -0.025958567 0.15821295 112.18243 13.352700 6801.4027 74281319. -0.029440016 0.16304508 112.22013 13.241849 6803.3950 69701563. -0.033209280 0.16787720 112.26033 13.125699 6805.3872 63424887. -0.037144335 0.17270933 112.29922 13.013356 6807.3795 55751868. -0.041317529 0.17754146 112.33440 12.911727 6809.3718 55358381. -0.044937943 0.18237359 112.36958 12.810098 6811.3641 54232812. -0.048708909 0.18720571 112.40830 12.698250 6813.3563 51651219. -0.052797603 0.19203784 112.44850 12.582101 6815.3486 51323826. -0.056851934 0.19686997 112.48637 12.472709 6817.3409 44468208. -0.062366821 0.20170210 112.52155 12.371080 6819.3331 44805080. -0.067392772 0.20653422 112.55673 12.269451 6821.3254 45476303. -0.073500964 0.21136635 112.59647 12.150600 6823.3177 47031170. -0.082836146 0.21619848 112.63667 12.029983 6825.3099 52182987. -0.11730028 0.22103061 112.67389 11.912352 6827.3022 52574087. -0.092436501 0.22586274 112.70963 11.796202 6829.2945 50922558. -0.038599311 0.23069486 112.74729 11.680052