# # 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 = 44.099488 km # Date (UTC) = 2013-12-02T10:14:19.360 # Date (julian) = 2456628.92661296 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6497.2119 5.2703643e+10 0.036299594 0.031442473 -32.254149 54.486888 6499.0136 4.8987556e+10 0.041185461 0.031985759 -32.367263 54.402052 6500.8152 4.5724283e+10 0.046115146 0.032529045 -32.472557 54.325036 6502.6169 4.3178579e+10 0.051268892 0.033072330 -32.573101 54.252770 6504.4186 4.1327870e+10 0.056852981 0.033615616 -32.673645 54.180504 6506.2202 3.9566479e+10 0.062867935 0.034158901 -32.778161 54.102714 6508.0219 3.7649763e+10 0.069302095 0.034702187 -32.887741 54.017879 6509.8235 3.5655894e+10 0.076227057 0.035245472 -32.997321 53.933044 6511.6252 3.3693028e+10 0.083726945 0.035788758 -33.106910 53.848200 6513.4269 3.1829267e+10 0.091861625 0.036332044 -33.216505 53.763351 6515.2285 3.0000536e+10 0.10060245 0.036875329 -33.326100 53.678502 6517.0302 2.8313598e+10 0.11006830 0.037418615 -33.426161 53.601035 6518.8318 2.6977429e+10 0.12046429 0.037961900 -33.523564 53.525626 6520.6335 2.5870848e+10 0.13168277 0.038505186 -33.620967 53.450217 6522.4352 2.4791432e+10 0.14227988 0.039031202 -33.723549 53.371277 6524.2368 2.3572710e+10 0.14930336 0.039511091 -33.829593 53.289977 6526.0385 2.2266877e+10 0.15506797 0.039708425 -33.935637 53.208676 6527.8401 2.1038587e+10 0.16241520 0.041326420 -34.030185 53.131915 6529.6418 1.9993562e+10 0.16757003 0.043258107 -34.121304 53.056507 6531.4435 1.9120109e+10 0.17052536 0.045874132 -34.212422 52.981099 6533.2451 1.8253802e+10 0.17248278 0.047623753 -34.310235 52.900151 6535.0468 1.7346808e+10 0.17265031 0.048204006 -34.412745 52.815315 6536.8484 1.6367312e+10 0.17160200 0.048549615 -34.515255 52.730479 6538.6501 1.5383042e+10 0.17071615 0.049473241 -34.617765 52.645643 6540.4518 1.4435687e+10 0.17014698 0.051067521 -34.720276 52.560808 6542.2534 1.3534242e+10 0.16851419 0.051098447 -34.822786 52.475973 6544.0551 1.2736155e+10 0.16686814 0.051689021 -34.914716 52.399891 6545.8567 1.2077304e+10 0.16552835 0.052463243 -35.005846 52.324473 6547.6584 1.1518909e+10 0.16509701 0.053537737 -35.096975 52.249054 6549.4600 1.0956482e+10 0.16397245 0.054435105 -35.193969 52.166598 6551.2617 1.0350566e+10 0.16285935 0.055327614 -35.292945 52.081763 6553.0634 9.7426615e+09 0.16219552 0.055303214 -35.391921 51.996927 6554.8650 9.1588515e+09 0.16118021 0.054850532 -35.487649 51.912091 6556.6667 8.5925084e+09 0.15962397 0.053915110 -35.583088 51.827255 6558.4683 8.0740844e+09 0.15809649 0.052840218 -35.677860 51.743261 6560.2700 7.6018120e+09 0.15653072 0.052030866 -35.765837 51.667852 6562.0717 7.2442262e+09 0.15459403 0.050811713 -35.853815 51.592443 6563.8733 6.9306169e+09 0.15212594 0.048918134 -35.941792 51.517034 6565.6750 6.5967229e+09 0.15041692 0.047551947 -36.036536 51.433079 6567.4766 6.2234863e+09 0.14896816 0.046214175 -36.131976 51.348244 6569.2783 5.8524110e+09 0.14724340 0.044870537 -36.226349 51.264141 6571.0800 5.5438128e+09 0.14590351 0.044481437 -36.308052 51.188722 6572.8816 5.2940472e+09 0.14465476 0.043725275 -36.389754 51.113303 6574.6833 5.0936430e+09 0.14306922 0.042526828 -36.471457 51.037884 6576.4849 4.8789817e+09 0.14133458 0.040813220 -36.562296 50.950868 6578.2866 4.6541014e+09 0.13955732 0.038197045 -36.654203 50.862497 6580.0883 4.4212399e+09 0.13798224 0.036439191 -36.746109 50.774362 6581.8899 4.1855075e+09 0.13635271 0.035327130 -36.838013 50.689527 6583.6916 3.9554237e+09 0.13483559 0.034671622 -36.929918 50.604692 6585.4932 3.7394110e+09 0.13351803 0.033576444 -37.019398 50.522095 6587.2949 3.5574567e+09 0.13222421 0.033223707 -37.101090 50.446686 6589.0966 3.4051318e+09 0.13053670 0.032854425 -37.182782 50.371277 6590.8982 3.2755939e+09 0.12840634 0.029391251 -37.264839 50.295352 6592.6999 3.1376622e+09 0.12656611 0.027393737 -37.353210 50.210517 6594.5015 2.9854646e+09 0.12447741 0.025897207 -37.441580 50.125682 6596.3032 2.8316674e+09 0.12203775 0.025725895 -37.527734 50.042266 6598.1048 2.6984715e+09 0.12029526 0.025357106 -37.606284 49.963716 6599.9065 2.5927877e+09 0.11929569 0.024984252 -37.684834 49.885165 6601.7082 2.4967290e+09 0.11839290 0.027379197 -37.763809 49.806343 6603.5098 2.4012986e+09 0.11671892 0.026361457 -37.852193 49.721494 6605.3115 2.2922835e+09 0.11581020 0.026926356 -37.940576 49.636645 6607.1131 2.1838071e+09 0.11404721 0.025483574 -38.028199 49.551799 6608.9148 2.0709273e+09 0.11097936 0.023708184 -38.113035 49.466965 6610.7165 1.9579793e+09 0.10831898 0.024687545 -38.197871 49.382130 6612.5181 1.8572189e+09 0.10706866 0.023933629 -38.279073 49.299718 6614.3198 1.7665794e+09 0.10629690 0.023720174 -38.354482 49.221167 6616.1214 1.7016113e+09 0.10499858 0.023301359 -38.429891 49.142617 6617.9231 1.6412316e+09 0.10454431 0.023745301 -38.507212 49.062791 6619.7248 1.5807468e+09 0.10391383 0.024700787 -38.592047 48.977955 6621.5264 1.5153412e+09 0.10297648 0.024914962 -38.676882 48.893119 6623.3281 1.4374106e+09 0.10166996 0.024613375 -38.760395 48.806961 6625.1297 1.3593576e+09 0.10070240 0.025552423 -38.841696 48.718590 6626.9314 1.2847428e+09 0.098925283 0.025404214 -38.922997 48.630220 6628.7331 1.2255250e+09 0.097995321 0.026000724 -38.999375 48.548912 6630.5347 1.1728767e+09 0.096582632 0.025929619 -39.071641 48.473503 6632.3364 1.1286947e+09 0.095092491 0.026072680 -39.143907 48.398094 6634.1380 1.0902122e+09 0.093539266 0.026336912 -39.219446 48.319271 6635.9397 1.0528460e+09 0.091987763 0.026540709 -39.300746 48.234436 6637.7414 1.0127693e+09 0.090840888 0.025798319 -39.382047 48.149601 6639.5430 9.6543491e+08 0.090129491 0.025433989 -39.463355 48.062874 6641.3447 9.1656226e+08 0.090278873 0.025149471 -39.544670 47.974490 6643.1463 8.7239690e+08 0.089556172 0.025214713 -39.625985 47.886106 6644.9480 8.3686063e+08 0.088387477 0.025446063 -39.704798 47.800221 6646.7497 7.9958516e+08 0.087005804 0.026308191 -39.782563 47.715385 6648.5513 7.6636380e+08 0.085715880 0.027333334 -39.860328 47.630549 6650.3530 7.3258643e+08 0.085088545 0.026336042 -39.930527 47.551217 6652.1546 7.0480324e+08 0.084512566 0.027293066 -39.999652 47.472667 6653.9563 6.8424933e+08 0.083858705 0.028013908 -40.068777 47.394117 6655.7579 6.6385965e+08 0.082413502 0.027923402 -40.143890 47.311211 6657.5596 6.4073857e+08 0.081097963 0.029550238 -40.221656 47.226376 6659.3613 6.1231989e+08 0.079831904 0.031759238 -40.299422 47.141541 6661.1629 5.8731117e+08 0.078689527 0.032617931 -40.377188 47.053652 6662.9646 5.6358278e+08 0.077737917 0.032503082 -40.454954 46.965281 6664.7662 5.4221366e+08 0.077029080 0.029402431 -40.532596 46.877033 6666.5679 5.2206016e+08 0.076757757 0.027019258 -40.606828 46.792197 6668.3696 4.9457762e+08 0.075965968 0.027797812 -40.681060 46.707361 6670.1712 4.7056113e+08 0.075686966 0.027249308 -40.753595 46.623817 6671.9729 4.4882632e+08 0.075411452 0.026879213 -40.819585 46.545256 6673.7745 4.3217649e+08 0.074689469 0.028617601 -40.885576 46.466696 6675.5762 4.2244392e+08 0.072781965 0.030901993 -40.951762 46.387986 6677.3779 4.0668979e+08 0.071281296 0.031821050 -41.025993 46.303151 6679.1795 3.9186184e+08 0.070703899 0.030119424 -41.100224 46.218316 6680.9812 3.7885402e+08 0.071455375 0.029653294 -41.173767 46.132793 6682.7828 3.6215726e+08 0.071875953 0.031022661 -41.244463 46.044423 6684.5845 3.5001131e+08 0.071642016 0.032683753 -41.315160 45.956052 6686.3862 3.3591461e+08 0.070594607 0.033985756 -41.387149 45.867682 6688.1878 3.2173026e+08 0.068348246 0.033828545 -41.461381 45.779311 6689.9895 3.1167375e+08 0.066685905 0.033125338 -41.535612 45.690940 6691.7911 2.9243666e+08 0.065833848 0.032814607 -41.607946 45.604466 6693.5928 2.7577346e+08 0.065204719 0.031400724 -41.678643 45.519630 6695.3945 2.6556538e+08 0.065054975 0.029787017 -41.749339 45.434793 6697.1961 2.5720638e+08 0.064582390 0.030116084 -41.820036 45.347456 6698.9978 2.5068714e+08 0.063478816 0.031587374 -41.890733 45.259085 6700.7994 2.4204388e+08 0.062033152 0.031260679 -41.961429 45.170715 6702.6011 2.3168303e+08 0.061492316 0.033356704 -42.029019 45.085450 6704.4028 2.2339360e+08 0.061716501 0.036375325 -42.096180 45.000614 6706.2044 2.1423323e+08 0.061662916 0.038802163 -42.163517 44.915602 6708.0061 2.0421914e+08 0.061457701 0.040050186 -42.234214 44.827231 6709.8077 1.9561617e+08 0.060527804 0.040618789 -42.304911 44.738860 6711.6094 1.8962239e+08 0.058793081 0.041385548 -42.374828 44.651269 6713.4110 1.7969632e+08 0.057149615 0.045173292 -42.441989 44.566434 6715.2127 1.7318711e+08 0.055592502 0.047596138 -42.509150 44.481600 6717.0144 1.6423483e+08 0.053884865 0.049873380 -42.576315 44.395374 6718.8160 1.5488046e+08 0.051963031 0.051083311 -42.643488 44.306991 6720.6177 1.4996835e+08 0.052109062 0.050348197 -42.710660 44.218607 6722.4193 1.4121243e+08 0.051745201 0.050086787 -42.777826 44.130231 6724.2210 1.3829729e+08 0.049442073 0.048081147 -42.844987 44.041860 6726.0227 1.3685079e+08 0.046261200 0.040951572 -42.912148 43.953490 6727.8243 1.3150279e+08 0.045600867 0.039862154 -42.979309 43.867714 6729.6260 1.2752032e+08 0.044717488 0.040628195 -43.046471 43.782878 6731.4276 1.2176012e+08 0.043297978 0.042601107 -43.113632 43.698042 6733.2293 1.1700259e+08 0.042466902 0.045169239 -43.177594 43.610006 6735.0310 1.1460812e+08 0.042773802 0.049326297 -43.241221 43.521635 6736.8326 1.0797774e+08 0.044312230 0.053502767 -43.304848 43.433533 6738.6343 1.0128862e+08 0.045149232 0.060813080 -43.368475 43.348698 6740.4359 96741494. 0.044635579 0.064795085 -43.432102 43.263864 6742.2376 92974299. 0.042512066 0.069189698 -43.495729 43.178155 6744.0393 90679728. 0.038476321 0.077823775 -43.559356 43.089784 6745.8409 87817382. 0.037690502 0.078920400 -43.622982 43.001414 6747.6426 84980059. 0.033519774 0.067139948 -43.690411 42.909452 6749.4442 79124019. 0.032490097 0.072156302 -43.763129 42.812494 6751.2459 75158931. 0.030258271 0.073815636 -43.835847 42.715536 6753.0476 70783683. 0.028177151 0.073131176 -43.899993 42.626675 6754.8492 67481044. 0.026734823 0.074847833 -43.963620 42.538305 6756.6509 66684230. 0.024425751 0.075841695 -44.026844 42.449934 6758.4525 63446219. 0.024798845 0.074662257 -44.086936 42.361563 6760.2542 61421167. 0.025160798 0.076545998 -44.147028 42.273192 6762.0558 58759074. 0.028650899 0.077960756 -44.208126 42.185829 6763.8575 58552541. 0.030266242 0.079049323 -44.271753 42.100994 6765.6592 55683731. 0.026141371 0.079651526 -44.335380 42.016159 6767.4608 54247050. 0.029343753 0.081459759 -44.401310 41.923956 6769.2625 51108591. 0.035531683 0.085090905 -44.469989 41.822959