# # 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 = 50.666736 km # Date (UTC) = 2013-11-15T09:53:45.970 # Date (julian) = 2456611.91233762 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6518.4942 3.4033737e+10 0.13838528 0.037860089 -18.774971 64.264725 6520.3557 3.2287997e+10 0.14792191 0.038421408 -18.995911 64.174201 6522.2171 3.0230395e+10 0.15679571 0.038974111 -19.239352 64.067087 6524.0786 2.8016249e+10 0.16083994 0.039454883 -19.479149 63.961403 6525.9401 2.5916733e+10 0.16381615 0.039674927 -19.683675 63.869575 6527.8015 2.4230917e+10 0.16799003 0.041298390 -19.888202 63.777747 6529.6630 2.2988314e+10 0.17071245 0.043291872 -20.092727 63.685918 6531.5245 2.1843755e+10 0.17238677 0.045992031 -20.297252 63.594090 6533.3859 2.0622428e+10 0.17384542 0.047683592 -20.510604 63.497639 6535.2474 1.9237800e+10 0.17410486 0.048116982 -20.744353 63.390505 6537.1088 1.7787398e+10 0.17397370 0.048736544 -20.968763 63.287176 6538.9703 1.6490228e+10 0.17310343 0.049629172 -21.164941 63.195347 6540.8318 1.5484354e+10 0.17252319 0.051247055 -21.361118 63.103519 6542.6932 1.4733573e+10 0.17150379 0.051265431 -21.553736 63.011691 6544.5547 1.3993773e+10 0.17041343 0.052094335 -21.745740 62.919863 6546.4162 1.3128844e+10 0.16880550 0.052806966 -21.950144 62.821040 6548.2776 1.2129846e+10 0.16772125 0.053750557 -22.169284 62.713906 6550.1391 1.1100743e+10 0.16673208 0.055020188 -22.375790 62.611264 6552.0006 1.0259006e+10 0.16523378 0.055586625 -22.563620 62.515260 6553.8620 9.6566423e+09 0.16296528 0.054901738 -22.751408 62.419257 6555.7235 9.2140425e+09 0.16116723 0.054245461 -22.935073 62.323256 6557.5850 8.7939532e+09 0.15963065 0.053499457 -23.118728 62.227254 6559.4464 8.3466045e+09 0.15741969 0.052336793 -23.299829 62.133808 6561.3079 7.9343420e+09 0.15502263 0.051220964 -23.479311 62.041981 6563.1693 7.5461231e+09 0.15309213 0.049732473 -23.664206 61.945794 6565.0308 7.1799595e+09 0.15139776 0.048283412 -23.868738 61.833788 6566.8923 6.8275853e+09 0.14961506 0.046678128 -24.068516 61.724386 6568.7537 6.4597587e+09 0.14802722 0.045078798 -24.243822 61.628383 6570.6152 6.1015856e+09 0.14705671 0.044662672 -24.419129 61.532380 6572.4767 5.7564012e+09 0.14585685 0.043957181 -24.591235 61.433178 6574.3381 5.4454872e+09 0.14400333 0.042692602 -24.762369 61.333004 6576.1996 5.1701061e+09 0.14222882 0.041141657 -24.931954 61.234377 6578.0611 4.9379226e+09 0.14033207 0.038553197 -25.098914 61.138376 6579.9225 4.7361500e+09 0.13827726 0.036563346 -25.265873 61.042374 6581.7840 4.5429246e+09 0.13613217 0.035359207 -25.432832 60.946373 6583.6455 4.3594309e+09 0.13412105 0.034694968 -25.599791 60.850371 6585.5069 4.1799198e+09 0.13221622 0.033565507 -25.764332 60.751950 6587.3684 4.0122504e+09 0.13037810 0.033239988 -25.927117 60.651774 6589.2298 3.8322236e+09 0.12825871 0.032589990 -26.093987 60.549429 6591.0913 3.6211780e+09 0.12574920 0.029098881 -26.279002 60.437446 6592.9528 3.4070381e+09 0.12377958 0.027148095 -26.460590 60.326996 6594.8142 3.2083754e+09 0.12165788 0.025725547 -26.619201 60.226820 6596.6757 3.0592227e+09 0.11936823 0.025724202 -26.777811 60.126644 6598.5372 2.9418807e+09 0.11790890 0.025150705 -26.933359 60.029532 6600.3986 2.8291734e+09 0.11784062 0.025809379 -27.087798 59.933530 6602.2601 2.7206022e+09 0.11741421 0.027294682 -27.240824 59.836117 6604.1216 2.6087297e+09 0.11628122 0.026143452 -27.391086 59.735942 6605.9830 2.5041326e+09 0.11616607 0.027489718 -27.541349 59.635768 6607.8445 2.4082958e+09 0.11439967 0.024039458 -27.691613 59.535591 6609.7059 2.3138690e+09 0.11187666 0.023915631 -27.841877 59.435415 6611.5674 2.2210154e+09 0.10961999 0.024596615 -27.989859 59.335239 6613.4289 2.1302256e+09 0.10885827 0.023730946 -28.135948 59.235065 6615.2903 2.0365137e+09 0.10778598 0.023260465 -28.282038 59.134890 6617.1518 1.9537875e+09 0.10670762 0.023489579 -28.428127 59.034714 6619.0133 1.8773226e+09 0.10599560 0.024529116 -28.574217 58.934537 6620.8747 1.8039366e+09 0.10525918 0.025049079 -28.717155 58.834361 6622.7362 1.7393751e+09 0.10387302 0.024562042 -28.859071 58.734184 6624.5977 1.6671248e+09 0.10232253 0.025182234 -29.000987 58.634009 6626.4591 1.6070092e+09 0.10066917 0.026005936 -29.142902 58.533834 6628.3206 1.5503309e+09 0.099167028 0.025833257 -29.284817 58.433659 6630.1821 1.4794289e+09 0.097747330 0.025928750 -29.444834 58.312703 6632.0435 1.4059390e+09 0.096033996 0.026037563 -29.605537 58.190958 6633.9050 1.3287022e+09 0.094635442 0.026310253 -29.741546 58.088841 6635.7664 1.2666218e+09 0.093321913 0.026514728 -29.875113 57.988664 6637.6279 1.2160208e+09 0.092369066 0.025853881 -30.008681 57.888489 6639.4894 1.1668690e+09 0.091966266 0.025453162 -30.142249 57.788313 6641.3508 1.1226684e+09 0.092485362 0.025149492 -30.275817 57.687644 6643.2123 1.0815330e+09 0.092062882 0.025224673 -30.409385 57.583294 6645.0738 1.0414814e+09 0.091288446 0.025486241 -30.542952 57.478945 6646.9352 1.0001815e+09 0.090279548 0.026404253 -30.673503 57.377611 6648.7967 9.6232190e+08 0.089256697 0.027497594 -30.802896 57.277435 6650.6582 9.2390287e+08 0.088945941 0.026405908 -30.932289 57.175894 6652.5196 8.9014974e+08 0.088525754 0.027393490 -31.061683 57.071545 6654.3811 8.5663220e+08 0.087669527 0.027873879 -31.191077 56.967195 6656.2425 8.2255265e+08 0.086008628 0.028236302 -31.316584 56.866733 6658.1040 7.9565968e+08 0.084689453 0.030245550 -31.441803 56.766558 6659.9655 7.6443507e+08 0.083392734 0.031633199 -31.564789 56.664149 6661.8269 7.3308718e+08 0.081984324 0.032956129 -31.685834 56.559800 6663.6884 7.0510523e+08 0.080737268 0.032292439 -31.807462 56.455450 6665.5499 6.8154092e+08 0.080507341 0.027646149 -31.932682 56.351100 6667.4113 6.6236484e+08 0.079808925 0.027254548 -32.057902 56.246750 6669.2728 6.4167238e+08 0.078628451 0.028075520 -32.176913 56.145503 6671.1343 6.1842951e+08 0.078514491 0.026867262 -32.293784 56.045327 6672.9957 5.9276548e+08 0.078041379 0.027456740 -32.412107 55.943699 6674.8572 5.6990386e+08 0.076572930 0.029677888 -32.533153 55.839350 6676.7187 5.4989460e+08 0.074485259 0.032176893 -32.654199 55.735000 6678.5801 5.3084627e+08 0.073848404 0.030548606 -32.771270 55.630651 6680.4416 5.1491698e+08 0.074488194 0.029536773 -32.888141 55.526301 6682.3030 4.9819193e+08 0.075117283 0.030656082 -33.002690 55.421952 6684.1645 4.8353473e+08 0.075218425 0.032662440 -33.115388 55.317602 6686.0260 4.6744912e+08 0.074727427 0.033776197 -33.228086 55.213253 6687.8874 4.5282376e+08 0.072606647 0.033847967 -33.340784 55.108902 6689.7489 4.3697199e+08 0.070712056 0.033341891 -33.453483 55.004552 6691.6104 4.2155509e+08 0.069813961 0.032857256 -33.580547 54.890625 6693.4718 4.0329137e+08 0.069089505 0.031442221 -33.712031 54.773751 6695.3333 3.8698132e+08 0.068794298 0.029798251 -33.827185 54.665785 6697.1948 3.7375606e+08 0.068224219 0.030115912 -33.935707 54.561436 6699.0562 3.5950966e+08 0.067029990 0.031538553 -34.044231 54.457086 6700.9177 3.4772647e+08 0.065400923 0.031348393 -34.152755 54.352737 6702.7792 3.3568830e+08 0.064924591 0.033498887 -34.261279 54.248387 6704.6406 3.2547832e+08 0.065000967 0.036492130 -34.369785 54.144054 6706.5021 3.1693691e+08 0.064684127 0.039320235 -34.478289 54.039723 6708.3635 3.0719829e+08 0.064223426 0.040439465 -34.584619 53.935381 6710.2250 2.9521774e+08 0.063013533 0.040540537 -34.688969 53.831031 6712.0865 2.8364345e+08 0.061061965 0.041990509 -34.793320 53.726148 6713.9479 2.7061311e+08 0.059119538 0.047115106 -34.897669 53.617624 6715.8094 2.5839546e+08 0.057604704 0.048206420 -35.002019 53.509099 6717.6709 2.4921217e+08 0.055717237 0.049832772 -35.103314 53.403630 6719.5323 2.3940453e+08 0.054178846 0.050864088 -35.203490 53.299281 6721.3938 2.3199498e+08 0.054462100 0.050422551 -35.303666 53.194931 6723.2553 2.2459072e+08 0.053293021 0.049511305 -35.403840 53.090582 6725.1167 2.1859517e+08 0.049379432 0.041503110 -35.504015 52.986232 6726.9782 2.1369786e+08 0.047891944 0.040960190 -35.619893 52.865527 6728.8396 2.0189942e+08 0.047733192 0.040818158 -35.736769 52.743782 6730.7011 1.9524090e+08 0.046187078 0.041340214 -35.835133 52.637463 6732.5626 1.8942549e+08 0.044959509 0.043843778 -35.931134 52.533114 6734.4240 1.8814852e+08 0.044399065 0.049328086 -36.027136 52.428764 6736.2855 1.8435476e+08 0.045876297 0.051434376 -36.123138 52.324414 6738.1470 1.7537117e+08 0.046880170 0.058130225 -36.219140 52.219666 6740.0084 1.6603479e+08 0.046669308 0.064064769 -36.315141 52.111144 6741.8699 1.5831383e+08 0.044777458 0.068239691 -36.411143 52.002621 6743.7314 1.5293209e+08 0.040702404 0.075981186 -36.518337 51.884850 6745.5928 1.4895955e+08 0.039183581 0.078816105 -36.630342 51.763106 6747.4543 1.4365831e+08 0.034814819 0.067204767 -36.729314 51.652597 6749.3158 1.3687238e+08 0.034064916 0.072191479 -36.821142 51.548248 6751.1772 1.3485346e+08 0.031578894 0.073786600 -36.912970 51.443899 6753.0387 1.2956442e+08 0.029261457 0.073102472 -37.004798 51.339549 6754.9001 1.2299003e+08 0.027718808 0.074765923 -37.096626 51.235200 6756.7616 1.1429405e+08 0.025320370 0.076126645 -37.188455 51.127283 6758.6231 1.0704503e+08 0.025933508 0.075022896 -37.280283 51.018757 6760.4845 1.0849431e+08 0.026385568 0.076985264 -37.376898 50.904170 6762.3460 1.0953798e+08 0.030603008 0.077492714 -37.479163 50.782426 6764.2075 1.0501570e+08 0.033234552 0.079493225 -37.575509 50.667728 6766.0689 1.0077021e+08 0.034694888 0.079869670 -37.663162 50.563378 6767.9304 95236072. 0.032172491 0.080933965 -37.750815 50.458985 6769.7919 94937055. 0.028155953 0.086374867 -37.838468 50.350467 6771.6533 95545857. 0.024849227 0.090889736 -37.926121 50.241944 6773.5148 89787035. 0.021514802 0.095404604 -38.019752 50.125310 6775.3763 83284476. 0.018161042 0.099919473 -38.117148 50.003565 6777.2377 76816096. 0.014772709 0.10443434 -38.209088 49.891563 6779.0992 72176677. 0.011347990 0.10894921 -38.296741 49.787213 6780.9606 71545228. 0.0078905171 0.11346408 -38.383021 49.682181 6782.8221 71510675. 0.0043396243 0.11797895 -38.462315 49.573674 6784.6836 68065110. 0.00056059064 0.12249382 -38.541608 49.465168 6786.5450 63331263. -0.0035993050 0.12700869 -38.634804 49.346494 6788.4065 58644986. -0.0092762822 0.13152355 -38.732198 49.224749 6790.2680 53918589. -0.025841881 0.13603842 -38.819650 49.112453 6792.1294 52304039. -0.019181561 0.14055329 -38.903130 49.003930 6793.9909 52463140. 0.00022212180 0.14506816 -38.989493 48.891192