# # 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 = 38.788204 km # Date (UTC) = 2014-01-02T10:12:51.977 # Date (julian) = 2456659.92560159 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6482.5049 8.2560824e+10 0.0090058419 0.027007621 -33.340645 49.259378 6484.1632 7.1841574e+10 0.013581895 0.027507673 -33.425212 49.178063 6485.8215 6.0474705e+10 0.018507833 0.028007724 -33.509803 49.096725 6487.4798 5.1193761e+10 0.023176142 0.028507776 -33.594394 49.015387 6489.1381 4.6776696e+10 0.026528502 0.029007827 -33.678998 48.937077 6490.7964 4.5253620e+10 0.029083659 0.029507879 -33.763603 48.858981 6492.4547 4.3472086e+10 0.031668112 0.030007930 -33.848209 48.780885 6494.1129 4.1963505e+10 0.034073974 0.030507982 -33.922223 48.707778 6495.7712 4.0182755e+10 0.036186596 0.031008033 -33.994522 48.635479 6497.4295 3.8790011e+10 0.037893076 0.031508085 -34.066822 48.563179 6499.0878 3.7400234e+10 0.039349771 0.032008137 -34.142762 48.487239 6500.7461 3.5560230e+10 0.040736032 0.032508188 -34.224100 48.405901 6502.4044 3.3775252e+10 0.042717539 0.033008240 -34.305438 48.324563 6504.0627 3.2137901e+10 0.045999466 0.033508291 -34.383801 48.246201 6505.7209 3.0640499e+10 0.051234802 0.034008343 -34.456100 48.173901 6507.3792 2.9443300e+10 0.059178445 0.034508394 -34.528399 48.101602 6509.0375 2.8452464e+10 0.070054458 0.035008446 -34.600699 48.029302 6510.6958 2.7397654e+10 0.083812716 0.035508497 -34.678039 47.949127 6512.3541 2.6169585e+10 0.098324600 0.036008549 -34.756122 47.867789 6514.0124 2.4889525e+10 0.11163951 0.036508600 -34.834206 47.786451 6515.6706 2.3749241e+10 0.12270603 0.037008652 -34.905376 47.712316 6517.3289 2.2827109e+10 0.13159090 0.037508704 -34.974793 47.640007 6518.9872 2.2096665e+10 0.14016987 0.038008755 -35.044211 47.567697 6520.6455 2.1366949e+10 0.14880213 0.038508807 -35.116578 47.492315 6522.3038 2.0493853e+10 0.15656468 0.038996802 -35.194663 47.410977 6523.9621 1.9471106e+10 0.16022358 0.039417561 -35.272748 47.329639 6525.6204 1.8415609e+10 0.16364098 0.039711414 -35.348518 47.250712 6527.2786 1.7493982e+10 0.16735240 0.040918771 -35.417925 47.178413 6528.9369 1.6754455e+10 0.16895641 0.042185752 -35.487332 47.106113 6530.5952 1.6096055e+10 0.17124767 0.044661990 -35.556739 47.033814 6532.2535 1.5385082e+10 0.17355847 0.046895966 -35.630533 46.954203 6533.9118 1.4595513e+10 0.17363835 0.047907069 -35.705364 46.872865 6535.5701 1.3763907e+10 0.17339497 0.047977001 -35.780195 46.791527 6537.2284 1.3008481e+10 0.17384069 0.048792887 -35.848911 46.716835 6538.8866 1.2359948e+10 0.17307401 0.049588430 -35.915427 46.644536 6540.5449 1.1805885e+10 0.17287925 0.051111541 -35.981942 46.572236 6542.2032 1.1277347e+10 0.17167184 0.051079389 -36.050765 46.497428 6543.8615 1.0697854e+10 0.17022831 0.051607998 -36.125596 46.416090 6545.5198 1.0082921e+10 0.16928428 0.052460224 -36.200427 46.334752 6547.1781 9.4567338e+09 0.16842158 0.053355081 -36.272974 46.255256 6548.8364 8.9028504e+09 0.16666278 0.053917410 -36.336606 46.182947 6550.4946 8.4393751e+09 0.16578916 0.055109213 -36.400238 46.110638 6552.1529 8.0248449e+09 0.16474786 0.055548275 -36.463870 46.038329 6553.8112 7.6447660e+09 0.16282735 0.054927282 -36.527496 45.966027 6555.4695 7.2943265e+09 0.16154903 0.054458875 -36.591120 45.893727 6557.1278 7.0037843e+09 0.16014489 0.053786013 -36.654744 45.821428 6558.7861 6.7156548e+09 0.15804110 0.052569478 -36.720664 45.746519 6560.4444 6.3810733e+09 0.15637152 0.051873668 -36.792241 45.665181 6562.1026 6.0199105e+09 0.15466200 0.050782239 -36.863817 45.583843 6563.7609 5.6704437e+09 0.15252597 0.049048154 -36.933683 45.504449 6565.4192 5.3888392e+09 0.15120448 0.047842380 -36.997307 45.432150 6567.0775 5.1643400e+09 0.14990236 0.046551664 -37.060931 45.359850 6568.7358 4.9594452e+09 0.14833003 0.045095306 -37.124555 45.287551 6570.3941 4.7474361e+09 0.14748237 0.044754274 -37.191738 45.208407 6572.0524 4.5129732e+09 0.14631946 0.044200176 -37.260061 45.127069 6573.7106 4.2839710e+09 0.14455723 0.043087214 -37.328385 45.045731 6575.3689 4.0633657e+09 0.14320485 0.042004564 -37.393502 44.968588 6577.0272 3.8890793e+09 0.14143837 0.040177638 -37.457134 44.893386 6578.6855 3.7532528e+09 0.13904970 0.037567143 -37.520766 44.818183 6580.3438 3.6167462e+09 0.13719682 0.036203054 -37.584724 44.741593 6582.0021 3.4859996e+09 0.13525699 0.035293234 -37.649795 44.660255 6583.6603 3.3223027e+09 0.13327577 0.034687428 -37.714865 44.578917 6585.3186 3.1591584e+09 0.13162699 0.033716033 -37.779274 44.498959 6586.9769 3.0051079e+09 0.13005519 0.033158668 -37.840005 44.426659 6588.6352 2.8702304e+09 0.12862812 0.033167802 -37.900736 44.354360 6590.2935 2.7617131e+09 0.12709297 0.030516132 -37.961467 44.282061 6591.9518 2.6490302e+09 0.12535752 0.028127944 -38.027474 44.203481 6593.6101 2.5306369e+09 0.12373048 0.026535051 -38.095798 44.122143 6595.2683 2.4096588e+09 0.12204751 0.025651399 -38.164122 44.040804 6596.9266 2.2923801e+09 0.12026702 0.025723061 -38.225932 43.965082 6598.5849 2.2047533e+09 0.11884509 0.025127906 -38.283772 43.892782 6600.2432 2.1270845e+09 0.11864389 0.025489851 -38.341612 43.820483 6601.9015 2.0552868e+09 0.11813543 0.027470239 -38.400635 43.746704 6603.5598 1.9803667e+09 0.11693470 0.026331890 -38.465715 43.665354 6605.2181 1.8983577e+09 0.11657095 0.026847975 -38.530796 43.584004 6606.8763 1.8180163e+09 0.11554204 0.025929204 -38.595222 43.503471 6608.5346 1.7393632e+09 0.11324833 0.023718236 -38.653062 43.431171 6610.1929 1.6728540e+09 0.11093564 0.024187302 -38.710902 43.358872 6611.8512 1.6148784e+09 0.10887297 0.024415643 -38.768742 43.286572 6613.5095 1.5698709e+09 0.10787974 0.023760521 -38.829096 43.208556 6615.1678 1.5156959e+09 0.10665650 0.023256693 -38.890913 43.127218 6616.8261 1.4511661e+09 0.10536302 0.023411948 -38.952729 43.045880 6618.4843 1.3842273e+09 0.10471159 0.024136530 -39.012323 42.969594 6620.1426 1.3258739e+09 0.10398472 0.024813158 -39.070163 42.897294 6621.8009 1.2850752e+09 0.10264609 0.024823982 -39.128003 42.824995 6623.4592 1.2497789e+09 0.10098306 0.024661951 -39.186245 42.751454 6625.1175 1.2052517e+09 0.099990965 0.025537794 -39.248061 42.666863 6626.7758 1.1567304e+09 0.098421478 0.025602505 -39.309878 42.582271 6628.4341 1.1050574e+09 0.097702699 0.025879324 -39.371506 42.498018 6630.0923 1.0571889e+09 0.096793115 0.025928529 -39.426454 42.425718 6631.7506 1.0200514e+09 0.095408927 0.026007014 -39.481402 42.353419 6633.4089 9.8918919e+08 0.094346530 0.026223644 -39.536350 42.281120 6635.0672 9.5795317e+08 0.093255114 0.026409864 -39.595216 42.203665 6636.7255 9.2633928e+08 0.091958137 0.026268020 -39.657041 42.122315 6638.3838 8.8830092e+08 0.091175746 0.025654923 -39.718867 42.040965 6640.0420 8.5090331e+08 0.091278814 0.025265507 -39.779073 41.959620 6641.7003 8.1401356e+08 0.091335226 0.025150679 -39.837637 41.878282 6643.3586 7.7193999e+08 0.090769341 0.025246766 -39.896201 41.796943 6645.0169 7.4046059e+08 0.089981058 0.025459604 -39.953235 41.719427 6646.6752 7.1017049e+08 0.088891287 0.026269648 -40.008183 41.647128 6648.3335 6.8799867e+08 0.087878412 0.027187514 -40.063130 41.574829 6649.9918 6.6796807e+08 0.087184767 0.026266594 -40.118077 41.502529 6651.6500 6.4005990e+08 0.086537589 0.026982332 -40.176514 41.421507 6653.3083 6.1526613e+08 0.085997086 0.027683084 -40.235077 41.340169 6654.9666 5.8305345e+08 0.084942534 0.027624438 -40.293641 41.258831 6656.6249 5.5582199e+08 0.083231225 0.028571890 -40.346403 41.185551 6658.2832 5.3646567e+08 0.081906732 0.030563317 -40.398458 41.113251 6659.9415 5.2231248e+08 0.080608860 0.031638206 -40.450514 41.040952 6661.5998 5.1051508e+08 0.079205521 0.032840419 -40.505391 40.964734 6663.2580 4.9223113e+08 0.078253478 0.032411703 -40.563955 40.883395 6664.9163 4.7029845e+08 0.077910840 0.028853281 -40.622519 40.802057 6666.5746 4.4316429e+08 0.077784248 0.027020566 -40.681086 40.719543 6668.2329 4.2337085e+08 0.077121623 0.027676874 -40.739658 40.634939 6669.8912 4.0258759e+08 0.076792128 0.027440394 -40.798230 40.550335 6671.5495 3.8809965e+08 0.076605898 0.026873179 -40.854103 40.469261 6673.2078 3.7357877e+08 0.076223938 0.027769931 -40.903266 40.396962 6674.8660 3.6057547e+08 0.074975917 0.029685353 -40.952429 40.324663 6676.5243 3.5187150e+08 0.073036416 0.032051649 -41.001592 40.252363 6678.1826 3.3812160e+08 0.072415628 0.030814476 -41.055852 40.172571 6679.8409 3.2533178e+08 0.072499262 0.029572892 -41.111162 40.091233 6681.4992 3.0844731e+08 0.073124778 0.030040323 -41.166473 40.009895 6683.1575 2.9384456e+08 0.073517252 0.031419351 -41.224241 39.928557 6684.8158 2.8286521e+08 0.073287289 0.032695488 -41.282804 39.847219 6686.4740 2.7097529e+08 0.072204459 0.034036887 -41.341368 39.765881 6688.1323 2.6250766e+08 0.070107965 0.033815735 -41.393522 39.690705 6689.7906 2.5534006e+08 0.068317163 0.033304350 -41.442685 39.618406 6691.4489 2.4477037e+08 0.067342319 0.032895353 -41.491848 39.546106 6693.1072 2.3793088e+08 0.066479295 0.031567320 -41.541660 39.471782 6694.7655 2.2922479e+08 0.065701427 0.030188188 -41.593716 39.390444 6696.4237 2.1860072e+08 0.065185496 0.029851845 -41.645772 39.309106 6698.0820 2.1180900e+08 0.064237104 0.030330420 -41.698319 39.227766 6699.7403 2.0194125e+08 0.062756197 0.030907328 -41.753638 39.146416 6701.3986 1.9467132e+08 0.061005126 0.031994314 -41.808957 39.065065 6703.0569 1.8691356e+08 0.060659753 0.033817594 -41.864023 38.983716 6704.7152 1.7535660e+08 0.060401204 0.036528743 -41.916080 38.902378 6706.3735 1.6909413e+08 0.059758662 0.039096385 -41.968136 38.821040 6708.0317 1.6199842e+08 0.059041332 0.040078149 -42.020215 38.739702 6709.6900 1.5190870e+08 0.057649737 0.040693649 -42.075514 38.658363 6711.3483 1.4300052e+08 0.055555729 0.041088523 -42.130824 38.577025 6713.0066 1.3248684e+08 0.053454945 0.043710507 -42.186133 38.495686 6714.6649 1.2694656e+08 0.051195851 0.047353395 -42.238417 38.414348 6716.3232 1.2355834e+08 0.049161215 0.048877365 -42.290473 38.333010 6717.9815 1.1651339e+08 0.046896084 0.049813561 -42.342529 38.251672 6719.6397 1.0957017e+08 0.044957506 0.050762035 -42.389631 38.178076 6721.2980 1.0313228e+08 0.044446685 0.050393697 -42.435902 38.105777 6722.9563 97491252. 0.042689284 0.049422950 -42.482174 38.033477 6724.6146 93898188. 0.038680045 0.044794354 -42.530752 37.957575 6726.2729 92230923. 0.035273602 0.040953829 -42.582808 37.876237 6727.9312 85391431. 0.032286943 0.039719800 -42.634864 37.794899 6729.5895 80674774. 0.025556724 0.040652540 -42.686921 37.713560 6731.2477 74033591. -0.010958181 0.042243077 -42.738979 37.632222 6732.9060 64896285. 0.014005467 0.043907005 -42.791037 37.550883 6734.5643 60744151. 0.085169488 0.049319646 -42.842276 37.469545