# # 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 = 58.047041 km # Date (UTC) = 2013-11-22T10:56:34.199 # Date (julian) = 2456618.95595138 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.1453 5.4911957e+10 0.046447431 0.032628572 90.624161 30.399950 6503.4823 5.1099838e+10 0.055421042 0.033333288 90.679189 30.266962 6505.8193 4.8078203e+10 0.064868101 0.034038005 90.734216 30.133973 6508.1563 4.5137783e+10 0.074703640 0.034742721 90.800956 29.988710 6510.4933 4.1996726e+10 0.084862170 0.035447437 90.869069 29.842008 6512.8303 3.8766767e+10 0.095358022 0.036152153 90.924278 29.708830 6515.1673 3.6073781e+10 0.10647364 0.036856870 90.979306 29.575840 6517.5043 3.3957940e+10 0.11831846 0.037561586 91.034330 29.442867 6519.8413 3.1944147e+10 0.13070391 0.038266302 91.089353 29.309898 6522.1783 2.9892555e+10 0.14302835 0.038963942 91.149288 29.168333 6524.5153 2.7688581e+10 0.14984394 0.039610025 91.212172 29.021604 6526.8523 2.5564512e+10 0.15577679 0.040561630 91.269422 28.884734 6529.1893 2.3723261e+10 0.16031996 0.042537334 91.324442 28.751765 6531.5263 2.2032639e+10 0.16497002 0.045994726 91.383673 28.608621 6533.8633 2.0421445e+10 0.16829742 0.047886467 91.446558 28.456653 6536.2003 1.8794882e+10 0.16949311 0.047969722 91.504510 28.319477 6538.5373 1.7347262e+10 0.17167732 0.049418322 91.559529 28.191093 6540.8743 1.6136145e+10 0.17205139 0.051267149 91.612504 28.060663 6543.2113 1.5097687e+10 0.17125061 0.051437353 91.662941 27.927693 6545.5483 1.4096839e+10 0.16961325 0.052460479 91.716680 27.791073 6547.8853 1.3020457e+10 0.16787454 0.053624032 91.779565 27.644344 6550.2223 1.1924706e+10 0.16606713 0.055041024 91.838006 27.504165 6552.5593 1.0873334e+10 0.16415048 0.055445988 91.888443 27.375781 6554.8963 1.0022743e+10 0.16219204 0.054851189 91.939688 27.246590 6557.2333 9.3758522e+09 0.15990596 0.053719866 91.994711 27.113620 6559.5703 8.8024153e+09 0.15731443 0.052322809 92.049741 26.980613 6561.9073 8.1988145e+09 0.15475796 0.050925577 92.107364 26.833990 6564.2443 7.5726173e+09 0.15207781 0.048660874 92.164382 26.688457 6566.5813 6.9761147e+09 0.15032691 0.046854037 92.214815 26.555487 6568.9183 6.4848071e+09 0.14863222 0.044927513 92.265249 26.422518 6571.2553 6.0879212e+09 0.14741207 0.044433544 92.315685 26.293702 6573.5923 5.7333917e+09 0.14553340 0.043182163 92.366122 26.165317 6575.9293 5.4195226e+09 0.14332750 0.041442312 92.416565 26.036919 6578.2663 5.1282849e+09 0.14089755 0.038229071 92.467009 25.908516 6580.6033 4.8260448e+09 0.13831255 0.035963202 92.521367 25.767301 6582.9403 4.5140365e+09 0.13627486 0.035037908 92.579000 25.615358 6585.2773 4.2047426e+09 0.13404313 0.033749064 92.632064 25.478379 6587.6143 3.9262253e+09 0.13190165 0.033294479 92.682509 25.349975 6589.9513 3.6948934e+09 0.12935018 0.031158648 92.732950 25.221581 6592.2883 3.4916923e+09 0.12606182 0.027793481 92.783387 25.093196 6594.6253 3.3114079e+09 0.12289524 0.025829253 92.832567 24.964812 6596.9623 3.1559620e+09 0.11968411 0.025722899 92.878417 24.836428 6599.2993 3.0052512e+09 0.11783981 0.024947733 92.925366 24.706335 6601.6363 2.8416564e+09 0.11796592 0.027345361 92.983010 24.559607 6603.9733 2.6712223e+09 0.11688525 0.026087070 93.039322 24.416270 6606.3103 2.5129666e+09 0.11684355 0.026946326 93.089758 24.287886 6608.6473 2.3767430e+09 0.11437947 0.023715256 93.140168 24.159474 6610.9843 2.2667867e+09 0.11136531 0.024943476 93.186028 24.026514 6613.3213 2.1666849e+09 0.11047450 0.023691484 93.231879 23.893545 6615.6583 2.0729236e+09 0.10907550 0.023271786 93.281504 23.764349 6617.9953 1.9910866e+09 0.10830911 0.023769246 93.331941 23.635964 6620.3323 1.9000032e+09 0.10757242 0.024874289 93.383640 23.495803 6622.6693 1.8043146e+09 0.10620930 0.024579841 93.436042 23.349075 6625.0063 1.7101512e+09 0.10473597 0.025405152 93.483640 23.215806 6627.3433 1.6246496e+09 0.10263401 0.025449432 93.529494 23.087422 6629.6803 1.5520670e+09 0.10129714 0.025986100 93.575346 22.959038 6632.0173 1.4836709e+09 0.099291525 0.026034423 93.621197 22.830654 6634.3543 1.4234153e+09 0.097518471 0.026352689 93.667048 22.702269 6636.6913 1.3647835e+09 0.095673178 0.026281282 93.712899 22.573885 6639.0283 1.3074478e+09 0.094179640 0.025617950 93.761000 22.443000 6641.3653 1.2458492e+09 0.094529520 0.025149541 93.818644 22.301512 6643.7023 1.1798030e+09 0.093376281 0.025298661 93.872957 22.163721 6646.0393 1.1209945e+09 0.091976312 0.025940505 93.918815 22.035317 6648.3763 1.0703875e+09 0.090683640 0.027216200 93.964205 21.906916 6650.7133 1.0314882e+09 0.089990175 0.026418538 94.005473 21.778531 6653.0503 9.9464806e+08 0.089670603 0.027551358 94.046741 21.650147 6655.3873 9.5842795e+08 0.088269107 0.027770262 94.092230 21.521763 6657.7243 9.2182240e+08 0.086571536 0.029741312 94.138081 21.393380 6660.0613 8.7802450e+08 0.085191862 0.031681745 94.188779 21.251421 6662.3983 8.3743721e+08 0.083745724 0.032820784 94.241181 21.104693 6664.7353 7.9692705e+08 0.082913985 0.029515539 94.288135 20.973221 6667.0723 7.6008890e+08 0.082619753 0.027130027 94.333986 20.844836 6669.4093 7.3215381e+08 0.081491470 0.027935289 94.379837 20.719435 6671.7463 7.0460536e+08 0.081355504 0.026875984 94.425687 20.595637 6674.0833 6.7405401e+08 0.080441778 0.029025089 94.472155 20.461066 6676.4203 6.4055315e+08 0.078013198 0.031984627 94.519320 20.314338 6678.7573 6.0858586e+08 0.077021495 0.030430076 94.565747 20.177910 6681.0943 5.7936864e+08 0.077888358 0.029729731 94.611598 20.049525 6683.4313 5.5731067e+08 0.078247133 0.031820708 94.655705 19.922886 6685.7683 5.3966946e+08 0.077589210 0.033516390 94.696973 19.799087 6688.1053 5.1984841e+08 0.074863613 0.033809506 94.740464 19.670711 6690.4423 5.0000354e+08 0.072769170 0.033065171 94.792866 19.523983 6692.7793 4.7851861e+08 0.071623445 0.031860331 94.842023 19.383934 6695.1163 4.5246113e+08 0.070876505 0.029838104 94.883288 19.260135 6697.4533 4.3172273e+08 0.070064891 0.030148636 94.924553 19.135830 6699.7903 4.1858965e+08 0.068366352 0.030861176 94.965821 19.007446 6702.1273 4.0932822e+08 0.066541529 0.032978411 95.007089 18.879063 6704.4643 3.9773036e+08 0.066941645 0.036405569 95.058705 18.738500 6706.8013 3.7935419e+08 0.066816688 0.039841074 95.110872 18.597289 6709.1383 3.5780536e+08 0.066303274 0.041044552 95.152137 18.468904 6711.4753 3.4303176e+08 0.064391269 0.041233040 95.193402 18.340519 6713.8123 3.3072842e+08 0.062126833 0.046624687 95.239624 18.201125 6716.1493 3.1762864e+08 0.060269560 0.048621326 95.286788 18.059637 6718.4863 3.0499320e+08 0.057908005 0.050569855 95.328460 17.930343 6720.8233 2.9272247e+08 0.057735177 0.050324368 95.369731 17.801940 6723.1603 2.8205987e+08 0.056682601 0.049458370 95.411000 17.676996 6725.4973 2.7236470e+08 0.052375218 0.041265353 95.452268 17.553197 6727.8343 2.6271963e+08 0.051303702 0.039848801 95.496897 17.419310 6730.1713 2.5184822e+08 0.049974692 0.040613836 95.544057 17.277822 6732.5083 2.4361218e+08 0.048381157 0.043833794 95.587317 17.145009 6734.8453 2.3443871e+08 0.048191963 0.049302738 95.628586 17.016624 6737.1823 2.2665870e+08 0.049956539 0.054716431 95.672689 16.881936 6739.5193 2.1826365e+08 0.050357241 0.063462132 95.719849 16.740449 6741.8563 2.0939385e+08 0.048335525 0.068201042 95.763635 16.609092 6744.1933 2.0024134e+08 0.043466526 0.077942961 95.804903 16.485293 6746.5303 1.9272109e+08 0.040330016 0.072821398 95.848480 16.354563 6748.8673 1.8520908e+08 0.038464631 0.071580046 95.895640 16.213076 6751.2043 1.7697786e+08 0.035130224 0.073798070 95.939952 16.080141 6753.5413 1.7167785e+08 0.032554202 0.074729192 95.981220 15.956342 6755.8783 1.6361802e+08 0.030166670 0.074220245 96.024271 15.825606 6758.2153 1.5912831e+08 0.029540683 0.074160708 96.071432 15.678877 6760.5523 1.5219228e+08 0.030166385 0.077114577 96.116528 15.534215 6762.8894 1.4534757e+08 0.035245131 0.076616251 96.158451 15.392727 6765.2264 1.4039815e+08 0.037895419 0.079572514 96.200054 15.259836 6767.5634 1.3396940e+08 0.036555282 0.081344958 96.241319 15.136037 6769.9004 1.2997726e+08 0.031533788 0.086638009 96.284383 15.006842 6772.2374 1.2656810e+08 0.027300375 0.092306263 96.331548 14.865355 6774.5744 1.2406715e+08 0.023051991 0.097974516 96.376633 14.723867 6776.9114 1.2068810e+08 0.018814212 0.10364277 96.418556 14.582380 6779.2484 1.1682405e+08 0.014580976 0.10931102 96.460158 14.449532 6781.5854 1.1139932e+08 0.010363834 0.11497928 96.501423 14.325732 6783.9224 1.0425977e+08 0.0061694471 0.12064753 96.542890 14.196493 6786.2594 1.0103344e+08 0.0019294035 0.12631578 96.584813 14.055006 6788.5964 97591114. -0.0023067647 0.13198404 96.628827 13.913518 6790.9334 93264823. -0.0065312687 0.13765229 96.675988 13.772030 6793.2704 88556966. -0.010749317 0.14332054 96.720577 13.633115 6795.6074 82828741. -0.014963043 0.14898880 96.762501 13.496868 6797.9444 77539149. -0.019175528 0.15465705 96.807477 13.357567 6800.2814 76065113. -0.023411644 0.16032531 96.854642 13.216080 6802.6184 75802240. -0.027637230 0.16599356 96.894736 13.086520 6804.9554 74234682. -0.031839812 0.17166181 96.931415 12.962720 6807.2924 74315402. -0.036026289 0.17733007 96.970681 12.830193 6809.6294 69588054. -0.040217067 0.18299832 97.012604 12.688706 6811.9664 64930092. -0.044431226 0.18866657 97.057594 12.547219 6814.3034 61445121. -0.048678611 0.19433483 97.104758 12.405731 6816.6404 59756596. -0.052976412 0.20000308 97.148373 12.267790 6818.9774 60394065. -0.057344349 0.20567133 97.190292 12.131543 6821.3144 58609157. -0.061912610 0.21133959 97.232214 11.991269 6823.6514 56024072. -0.067467710 0.21700784 97.274138 11.849781 6825.9884 50528911. -0.080131170 0.22267609 97.316061 11.708293 6828.3254 46417202. -0.077970228 0.22834435 97.357985 11.566804 6830.6624 44557132. -0.065838494 0.23401260 97.399908 11.430305