# # 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 = 44.635019 km # Date (UTC) = 2012-01-03T09:37:22.769 # Date (julian) = 2455929.90095798 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6523.6165 5.1591967e+10 0.16245400 0.039331908 -29.979468 43.766373 6525.6924 4.6654288e+10 0.16609445 0.039703191 -30.055495 43.672245 6527.7683 4.2462976e+10 0.16981531 0.041274297 -30.131630 43.577882 6529.8443 3.8588274e+10 0.17243080 0.043580630 -30.213089 43.471985 6531.9202 3.4871322e+10 0.17397503 0.046568033 -30.294548 43.366088 6533.9961 3.1460929e+10 0.17382571 0.047942908 -30.370900 43.266831 6536.0720 2.8718606e+10 0.17259446 0.047854963 -30.443316 43.172691 6538.1480 2.6525878e+10 0.17320804 0.049228735 -30.515732 43.078550 6540.2239 2.4650296e+10 0.17287379 0.050959877 -30.595409 42.974970 6542.2998 2.2807367e+10 0.17099393 0.051116068 -30.676867 42.869073 6544.3757 2.0966837e+10 0.16952102 0.051949163 -30.758325 42.764592 6546.4517 1.9182194e+10 0.16798970 0.052836182 -30.839784 42.662769 6548.5276 1.7598395e+10 0.16678401 0.053825206 -30.921243 42.560946 6550.6035 1.6273237e+10 0.16566056 0.055136478 -30.994622 42.465991 6552.6795 1.5231604e+10 0.16448947 0.055415749 -31.067028 42.371863 6554.7554 1.4337420e+10 0.16264769 0.054848232 -31.140083 42.276201 6556.8313 1.3439125e+10 0.16035853 0.053890908 -31.217469 42.170305 6558.9072 1.2512502e+10 0.15737627 0.052466233 -31.294855 42.064408 6560.9832 1.1575028e+10 0.15428028 0.051387867 -31.372241 41.958512 6563.0591 1.0691161e+10 0.15187964 0.049860022 -31.449627 41.852616 6565.1350 9.9019496e+09 0.14966150 0.048165094 -31.525124 41.749304 6567.2109 9.2635109e+09 0.14782277 0.046438837 -31.593920 41.655163 6569.2869 8.7312329e+09 0.14606823 0.044871095 -31.662715 41.561021 6571.3628 8.2764963e+09 0.14467835 0.044404191 -31.735445 41.463361 6573.4387 7.8020440e+09 0.14292719 0.043305426 -31.812830 41.361538 6575.5146 7.3072295e+09 0.14110026 0.041858365 -31.890185 41.259686 6577.5906 6.8257930e+09 0.13910550 0.039292741 -31.963516 41.153808 6579.6665 6.3587177e+09 0.13689579 0.036704099 -32.036829 41.047913 6581.7424 5.9515806e+09 0.13485873 0.035371795 -32.107663 40.948460 6583.8183 5.6168998e+09 0.13281293 0.034607459 -32.176449 40.854333 6585.8943 5.3327821e+09 0.13071972 0.033255827 -32.245234 40.760205 6587.9702 5.0560418e+09 0.12912772 0.033373327 -32.317575 40.656834 6590.0461 4.7560943e+09 0.12695219 0.030976281 -32.390888 40.550937 6592.1220 4.4553537e+09 0.12434445 0.027954985 -32.461512 40.448925 6594.1980 4.2005913e+09 0.12170803 0.026063848 -32.526678 40.354798 6596.2739 3.9961183e+09 0.11858234 0.025726029 -32.591843 40.260670 6598.3498 3.8121434e+09 0.11615810 0.025240148 -32.661642 40.162163 6600.4257 3.6216634e+09 0.11503541 0.025865133 -32.734966 40.060324 6602.5017 3.4169797e+09 0.11363624 0.027088525 -32.807829 39.958027 6604.5776 3.2007048e+09 0.11187456 0.026414236 -32.877069 39.852130 6606.6535 2.9953353e+09 0.11050280 0.026329599 -32.946310 39.746233 6608.7295 2.8142756e+09 0.10747215 0.023713085 -33.012870 39.648078 6610.8054 2.6762321e+09 0.10451639 0.024772498 -33.078036 39.553950 6612.8813 2.5643405e+09 0.10344986 0.023662276 -33.143202 39.459823 6614.9572 2.4515768e+09 0.10243263 0.023280999 -33.212016 39.355154 6617.0332 2.3324666e+09 0.10122147 0.023450241 -33.281255 39.249257 6619.1091 2.2052809e+09 0.10070600 0.024552234 -33.350494 39.145154 6621.1850 2.0729366e+09 0.10010029 0.025028125 -33.419735 39.043331 6623.2609 1.9502350e+09 0.098768426 0.024588497 -33.488976 38.941507 6625.3369 1.8464192e+09 0.097578255 0.025799577 -33.550635 38.847266 6627.4128 1.7670858e+09 0.095619258 0.025476262 -33.612179 38.753138 6629.4887 1.7011482e+09 0.094343785 0.026020745 -33.675440 38.656386 6631.5646 1.6289727e+09 0.092524705 0.025988121 -33.744681 38.550489 6633.6406 1.5446210e+09 0.091088105 0.026264088 -33.813921 38.444592 6635.7165 1.4586578e+09 0.089576637 0.026507236 -33.880042 38.338684 6637.7924 1.3802412e+09 0.088375299 0.025773312 -33.945218 38.232773 6639.8683 1.3056548e+09 0.087952251 0.025317711 -34.011666 38.128141 6641.9443 1.2395961e+09 0.087911664 0.025151507 -34.080905 38.026317 6644.0202 1.1726504e+09 0.086705506 0.025345788 -34.150144 37.924493 6646.0961 1.1127549e+09 0.085537002 0.025969900 -34.209680 37.829270 6648.1720 1.0637860e+09 0.084273941 0.027079450 -34.267605 37.735143 6650.2480 1.0163932e+09 0.083287113 0.026312004 -34.326221 37.639891 6652.3239 9.7317163e+08 0.082501105 0.027339637 -34.391388 37.533994 6654.3998 9.3031298e+08 0.081526403 0.027865899 -34.456555 37.428098 6656.4757 8.8384174e+08 0.079814173 0.028440977 -34.521721 37.324809 6658.5517 8.4196293e+08 0.078565631 0.031039479 -34.586888 37.222986 6660.6276 8.0057133e+08 0.077480126 0.032196453 -34.652055 37.120409 6662.7035 7.5890060e+08 0.076481783 0.032649554 -34.717222 37.014513 6664.7794 7.1979030e+08 0.075915569 0.029354117 -34.782389 36.908617 6666.8554 6.8330323e+08 0.075814195 0.027075276 -34.839635 36.811299 6668.9313 6.5569245e+08 0.074718631 0.028294909 -34.893947 36.717158 6671.0072 6.2917782e+08 0.074904982 0.026865451 -34.948260 36.623016 6673.0832 6.0417117e+08 0.074581561 0.027583578 -35.013079 36.521439 6675.1591 5.7748647e+08 0.073046654 0.030103050 -35.078246 36.419616 6677.2350 5.4734118e+08 0.071218930 0.032024135 -35.141324 36.315705 6679.3109 5.1985802e+08 0.070893082 0.030010833 -35.202417 36.209810 6681.3869 4.9519797e+08 0.071839242 0.029954148 -35.263744 36.103914 6683.4628 4.7389801e+08 0.072214697 0.031866793 -35.328910 35.998018 6685.5387 4.5045888e+08 0.071840506 0.033273845 -35.394077 35.892121 6687.6146 4.2721883e+08 0.069752999 0.034000113 -35.456792 35.788677 6689.6906 4.0141577e+08 0.067544869 0.033394410 -35.517886 35.686853 6691.7665 3.8126631e+08 0.066458992 0.032820423 -35.578981 35.584431 6693.8424 3.6362245e+08 0.065390698 0.031315090 -35.640076 35.478535 6695.9183 3.4471032e+08 0.065088509 0.029690786 -35.701170 35.372640 6697.9943 3.2773057e+08 0.064156932 0.030217091 -35.759446 35.269562 6700.0702 3.1305052e+08 0.062436930 0.030719779 -35.816467 35.167739 6702.1461 2.9874034e+08 0.060799155 0.032993403 -35.874451 35.064952 6704.2220 2.8218229e+08 0.061071069 0.036286587 -35.935544 34.959057 6706.2980 2.6542347e+08 0.060917951 0.038964991 -35.996637 34.853162 6708.3739 2.5039292e+08 0.060388072 0.040450733 -36.057731 34.750448 6710.4498 2.3928529e+08 0.058849786 0.040584541 -36.118826 34.648624 6712.5257 2.3081948e+08 0.056605783 0.042806089 -36.178595 34.545467 6714.6017 2.2316936e+08 0.054337350 0.047348642 -36.235625 34.439554 6716.6776 2.1423235e+08 0.052178086 0.049399396 -36.292654 34.333641 6718.7535 2.0711362e+08 0.049599241 0.050985966 -36.353225 34.227744 6720.8294 1.9691402e+08 0.049355847 0.050323660 -36.414319 34.121848 6722.9054 1.8915995e+08 0.048124532 0.049485928 -36.473719 34.017647 6724.9813 1.8210132e+08 0.043584240 0.041732189 -36.530740 33.915824 6727.0572 1.7608242e+08 0.041532229 0.040884147 -36.587760 33.814001 6729.1332 1.7173922e+08 0.040761951 0.040956679 -36.644781 33.708264 6731.2091 1.6107684e+08 0.038466707 0.042166125 -36.701802 33.602367 6733.2850 1.5355489e+08 0.036838289 0.045471665 -36.758823 33.498529 6735.3609 1.4554915e+08 0.036862383 0.049676584 -36.815844 33.396705 6737.4369 1.4197176e+08 0.037918160 0.055527173 -36.872865 33.294882 6739.5128 1.3633251e+08 0.037708019 0.063454096 -36.929885 33.193059 6741.5887 1.2881482e+08 0.035432737 0.067437713 -36.986906 33.091236 6743.6646 1.2710066e+08 0.030898764 0.075531024 -37.041504 32.986989 6745.7406 1.2417025e+08 0.028886596 0.078878210 -37.094452 32.881094 6747.8165 1.1981094e+08 0.024303164 0.067080077 -37.149109 32.773734 6749.8924 1.1223031e+08 0.021357771 0.072033591 -37.214277 32.657363 6751.9683 1.0481055e+08 0.017751307 0.074121088 -37.279428 32.541005 6754.0443 1.0008431e+08 0.016131022 0.076142295 -37.332497 32.435004 6756.1202 95954924. 0.013150596 0.074476166 -37.385446 32.329107 6758.1961 93973920. 0.012388965 0.074120028 -37.440578 32.225394 6760.2720 91964754. 0.012412077 0.076580035 -37.497599 32.123571 6762.3480 89276123. 0.015729878 0.077489551 -37.554290 32.021747 6764.4239 86368526. 0.017260148 0.079503593 -37.607247 31.919909 6766.4998 79825029. 0.015493038 0.080844339 -37.660203 31.818072 6768.5757 76816778. 0.0085103745 0.082927679 -37.717892 31.704219 6770.6517 71741139. -0.0017443308 0.088460280 -37.778405 31.583192 6772.7276 65455693. -0.019692681 0.093495313 -37.835303 31.471342 6774.8035 64705520. -0.094701287 0.098530346 -37.888250 31.369519 6776.8794 59790078. -0.043380934 0.10356538 -37.941368 31.267367 6778.9554 56908612. 0.095099172 0.10860041 -38.001882 31.150995