# # 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 = 64.850410 km # Date (UTC) = 2014-11-29T10:14:07.670 # Date (julian) = 2456990.92647766 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6496.4541 8.8335162e+10 0.034844557 0.031213944 102.23871 27.803009 6498.7707 7.4993919e+10 0.042585978 0.031912531 102.29326 27.675741 6501.0874 6.4445378e+10 0.050232886 0.032611119 102.34928 27.548473 6503.4041 5.6164041e+10 0.057927941 0.033309706 102.40837 27.421205 6505.7208 4.9733805e+10 0.065863492 0.034008294 102.46612 27.295720 6508.0375 4.4809602e+10 0.074273343 0.034706882 102.51461 27.182580 6510.3541 4.0941480e+10 0.083316742 0.035405469 102.56310 27.069441 6512.6708 3.7822021e+10 0.093139588 0.036104057 102.61553 26.947098 6514.9875 3.4771177e+10 0.10360859 0.036802644 102.67007 26.819830 6517.3042 3.1700949e+10 0.11465111 0.037501232 102.72461 26.692562 6519.6208 2.8883597e+10 0.12643206 0.038199820 102.77916 26.565294 6521.9375 2.6327155e+10 0.13893477 0.038898407 102.83218 26.441579 6524.2542 2.4243658e+10 0.14605429 0.039517261 102.88066 26.328454 6526.5709 2.2518812e+10 0.15279241 0.040266569 102.92915 26.215330 6528.8875 2.0847518e+10 0.15864891 0.042146569 102.98233 26.091229 6531.2042 1.9196686e+10 0.16401647 0.045525917 103.03687 25.963960 6533.5209 1.7517957e+10 0.16896771 0.047740950 103.08880 25.836692 6535.8376 1.5945552e+10 0.17085477 0.047860963 103.13880 25.709424 6538.1542 1.4619649e+10 0.17339737 0.049231790 103.18823 25.587467 6540.4709 1.3499511e+10 0.17363812 0.051076577 103.23672 25.474328 6542.7876 1.2570732e+10 0.17177478 0.051301254 103.28521 25.361188 6545.1043 1.1749658e+10 0.16989146 0.052456501 103.33915 25.235317 6547.4209 1.0949531e+10 0.16763867 0.053447444 103.39370 25.108049 6549.7376 1.0134908e+10 0.16582148 0.054717980 103.44505 24.980782 6552.0543 9.3351887e+09 0.16416970 0.055573099 103.49505 24.853514 6554.3710 8.6196336e+09 0.16198524 0.054840165 103.54428 24.733331 6556.6877 8.0413831e+09 0.16007020 0.053912027 103.59277 24.620206 6559.0043 7.5771800e+09 0.15757111 0.052386693 103.64129 24.506716 6561.3210 7.1362383e+09 0.15515141 0.051214495 103.69129 24.379448 6563.6377 6.6509389e+09 0.15278533 0.049190713 103.74129 24.252179 6565.9544 6.1516586e+09 0.15073432 0.047234708 103.79128 24.124912 6568.2710 5.7148419e+09 0.14956051 0.045522515 103.84128 23.997645 6570.5877 5.3527411e+09 0.14829531 0.044674058 103.88781 23.879216 6572.9044 5.0824788e+09 0.14670226 0.043712235 103.93226 23.766076 6575.2211 4.8332292e+09 0.14464095 0.042152909 103.97823 23.651491 6577.5377 4.5842501e+09 0.14220900 0.039375709 104.03277 23.528768 6579.8544 4.3342709e+09 0.13964806 0.036600786 104.08731 23.406045 6582.1711 4.0686982e+09 0.13729870 0.035247235 104.13753 23.279002 6584.4878 3.8301845e+09 0.13492943 0.034249804 104.18753 23.151735 6586.8044 3.6274200e+09 0.13246902 0.033160897 104.23336 23.035083 6589.1211 3.4585766e+09 0.12997249 0.032805678 104.27780 22.921958 6591.4378 3.3137483e+09 0.12719987 0.028707903 104.32252 22.806188 6593.7545 3.1642717e+09 0.12492579 0.026400786 104.36798 22.683465 6596.0712 3.0070493e+09 0.12245674 0.025726950 104.41377 22.560400 6598.3878 2.8398737e+09 0.12100980 0.025222002 104.46377 22.433133 6600.7045 2.6798693e+09 0.12107471 0.026438209 104.51376 22.305865 6603.0212 2.5410730e+09 0.12054668 0.026650734 104.55890 22.194501 6605.3379 2.4234106e+09 0.12009001 0.026948480 104.60335 22.085402 6607.6545 2.3291524e+09 0.11849081 0.024414535 104.65002 21.969025 6609.9712 2.2296734e+09 0.11561115 0.023994427 104.70002 21.841757 6612.2879 2.1258862e+09 0.11351718 0.024105653 104.74911 21.715400 6614.6046 2.0084563e+09 0.11273663 0.023523971 104.79456 21.592677 6616.9212 1.9018380e+09 0.11154300 0.023426888 104.84001 21.469970 6619.2379 1.8169405e+09 0.11094729 0.024583320 104.88445 21.356834 6621.5546 1.7425815e+09 0.10998892 0.024905624 104.92890 21.243709 6623.8713 1.6822223e+09 0.10796319 0.024814617 104.97387 21.125544 6626.1879 1.6112871e+09 0.10657635 0.026351443 105.01933 21.002821 6628.5046 1.5428031e+09 0.10476987 0.025907977 105.06626 20.878620 6630.8213 1.4743066e+09 0.10288183 0.025930326 105.11626 20.751352 6633.1380 1.4092581e+09 0.10123892 0.026176342 105.16569 20.624653 6635.4547 1.3430119e+09 0.099398660 0.026467969 105.21114 20.501931 6637.7713 1.2757041e+09 0.097844244 0.025783639 105.25659 20.379209 6640.0880 1.2173250e+09 0.097408775 0.025259885 105.29738 20.265350 6642.4047 1.1654845e+09 0.097242249 0.025168257 105.33778 20.152209 6644.7214 1.1245106e+09 0.096205236 0.025421569 105.38046 20.034755 6647.0380 1.0829662e+09 0.095157143 0.026457804 105.42591 19.912032 6649.3547 1.0393561e+09 0.094222762 0.027144738 105.47250 19.789310 6651.6714 9.9276814e+08 0.093966187 0.026998686 105.52250 19.666587 6653.9881 9.4587702e+08 0.093459074 0.028030131 105.57227 19.543864 6656.3047 8.9998517e+08 0.091730012 0.028290885 105.61772 19.421143 6658.6214 8.5967275e+08 0.090201685 0.031163170 105.66318 19.298421 6660.9381 8.2513235e+08 0.088752656 0.032478677 105.70434 19.187289 6663.2548 7.9537640e+08 0.087404405 0.032412610 105.74474 19.078203 6665.5714 7.7129039e+08 0.086854920 0.027610799 105.78703 18.962304 6667.8881 7.4493421e+08 0.086076758 0.027429680 105.83249 18.835036 6670.2048 7.1692186e+08 0.085351448 0.027233754 105.87794 18.708562 6672.5215 6.8578048e+08 0.084937357 0.027181854 105.92339 18.585839 6674.8381 6.5656176e+08 0.083443092 0.029661825 105.96885 18.463117 6677.1548 6.2671930e+08 0.081089315 0.032138117 106.00987 18.340377 6679.4715 6.0096136e+08 0.080643717 0.029878143 106.05079 18.217637 6681.7882 5.7446588e+08 0.081435492 0.030262036 106.09522 18.094911 6684.1049 5.4882573e+08 0.081504249 0.032659413 106.14067 17.972188 6686.4215 5.2926480e+08 0.080279652 0.034006338 106.18322 17.857303 6688.7382 5.0923500e+08 0.077079514 0.033955594 106.22363 17.748218 6691.0549 4.9493182e+08 0.075530628 0.032988314 106.26453 17.637774 6693.3716 4.7726217e+08 0.074376513 0.031476621 106.30998 17.515051 6695.6882 4.5926073e+08 0.073867825 0.029733053 106.35543 17.392329 6698.0049 4.3931556e+08 0.073110568 0.030224560 106.39680 17.269607 6700.3216 4.1895738e+08 0.071403531 0.030906250 106.43770 17.146886 6702.6383 4.0350960e+08 0.070360966 0.033386388 106.48179 17.024163 6704.9549 3.8873796e+08 0.070653193 0.036646480 106.52725 16.901441 6707.2716 3.7670096e+08 0.070245710 0.040147917 106.57043 16.778718 6709.5883 3.6530531e+08 0.069334792 0.040758359 106.61134 16.655995 6711.9050 3.5063061e+08 0.067185391 0.041721842 106.65360 16.533271 6714.2216 3.3398477e+08 0.064996602 0.047320072 106.69905 16.410549 6716.5383 3.2087981e+08 0.063052150 0.049194261 106.74406 16.288276 6718.8550 3.1132380e+08 0.060494470 0.051144012 106.78497 16.170082 6721.1717 3.0307950e+08 0.060711880 0.050355626 106.82589 16.051888 6723.4884 2.9266740e+08 0.059197447 0.049641307 106.87088 15.929621 6725.8050 2.7892148e+08 0.055041225 0.041073157 106.91633 15.806898 6728.1217 2.6630090e+08 0.054220938 0.039800596 106.95861 15.684175 6730.4384 2.5638090e+08 0.052674997 0.040979977 106.99951 15.561453 6732.7551 2.4744028e+08 0.051213242 0.043879213 107.04042 15.438730 6735.0717 2.3821418e+08 0.051273442 0.049369584 107.08133 15.316007 6737.3884 2.3173678e+08 0.052941556 0.055372857 107.12360 15.194644 6739.7051 2.2412072e+08 0.053168236 0.063689444 107.16905 15.076467 6742.0218 2.1634474e+08 0.050986570 0.068663781 107.21405 14.957840 6744.3384 2.1166246e+08 0.046241848 0.078055187 107.25496 14.835117 6746.6551 2.0638526e+08 0.042738703 0.071370821 107.29587 14.712395 6748.9718 1.9717673e+08 0.041629429 0.072129533 107.34203 14.573909 6751.2885 1.8970654e+08 0.038272549 0.073833637 107.38878 14.433652 6753.6051 1.7871190e+08 0.036123613 0.074935650 107.42984 14.314900 6755.9218 1.7092605e+08 0.033849043 0.074201185 107.47075 14.196723 6758.2385 1.7100597e+08 0.033238612 0.074209658 107.51166 14.075028 6760.5552 1.6776345e+08 0.033848050 0.077119963 107.55257 13.952304 6762.8719 1.6556164e+08 0.038861725 0.076644479 107.59347 13.832190 6765.1885 1.5825827e+08 0.041636674 0.079565609 107.63438 13.714013 6767.5052 1.4952021e+08 0.040587021 0.081410069 107.67747 13.587585 6769.8219 1.4214367e+08 0.035739581 0.086447680 107.72423 13.447327 6772.1386 1.3793113e+08 0.031597722 0.092066639 107.76836 13.316969 6774.4552 1.3477084e+08 0.027406484 0.097685598 107.80927 13.198774 6776.7719 1.3045623e+08 0.023238711 0.10330456 107.85018 13.079452 6779.0886 1.2878770e+08 0.018962319 0.10892352 107.89109 12.956730 6781.4053 1.2498605e+08 0.014737768 0.11454247 107.93228 12.833405 6783.7219 1.2166917e+08 0.010477519 0.12016143 107.97903 12.698342 6786.0386 1.1826794e+08 0.0062001473 0.12578039 108.02506 12.565369 6788.3553 1.1507048e+08 0.0018927689 0.13139935 108.06597 12.447192 6790.6720 1.1335533e+08 -0.0024829603 0.13701831 108.10688 12.329015 6792.9886 1.0905935e+08 -0.0067940795 0.14263727 108.14779 12.206639 6795.3053 1.0337050e+08 -0.011066866 0.14825623 108.18869 12.083917 6797.6220 99451318. -0.015389211 0.15387518 108.23007 11.952265 6799.9387 98620039. -0.019787212 0.15949414 108.27163 11.817203 6802.2553 99042514. -0.024205644 0.16511310 108.31267 11.695624 6804.5720 95812318. -0.028556715 0.17073206 108.35358 11.577446 6806.8887 93824990. -0.032947597 0.17635102 108.39798 11.446054 6809.2054 88011618. -0.037292456 0.18196998 108.44473 11.305797 6811.5221 85477104. -0.041693837 0.18758894 108.49149 11.169039 6813.8387 82571118. -0.046097494 0.19320790 108.53824 11.033976 6816.1554 78274176. -0.050508856 0.19882685 108.57722 10.911551 6818.4721 78609682. -0.054918825 0.20444581 108.61358 10.793374 6820.7888 76017890. -0.059337166 0.21006477 108.65564 10.665938 6823.1054 75304859. -0.063738528 0.21568373 108.70239 10.530875 6825.4221 71514569. -0.068190830 0.22130269 108.74591 10.395813 6827.7388 69178766. -0.072649745 0.22692165 108.78746 10.260750 6830.0555 66683249. -0.077161247 0.23254061 108.82857 10.137478 6832.3721 64413677. -0.081759247 0.23815957 108.86947 10.019301 6834.6888 62192035. -0.086536114 0.24377852 108.91070 9.8927112 6837.0055 60547152. -0.091638509 0.24939748 108.95226 9.7576487 6839.3222 59815871. -0.098157880 0.25501644 108.99680 9.6225862 6841.6388 56148898. -0.11702535 0.26063540 109.04355 9.4875237 6843.9555 51077429. -0.10986210 0.26625436 109.08693 9.3524615 6846.2722 44637781. -0.083130954 0.27187332 109.12849 9.2173995