# # 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 = 46.039567 km # Date (UTC) = 2013-01-27T10:36:51.349 # Date (julian) = 2456319.94226098 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.0777 1.9459921e+11 0.048445293 0.032306629 -33.575346 58.799899 6502.0337 1.4707609e+11 0.056233857 0.032896481 -33.796423 58.646374 6503.9898 1.1627501e+11 0.064142360 0.033486332 -34.011968 58.487395 6505.9459 9.7941112e+10 0.072577811 0.034076184 -34.225241 58.327755 6507.9020 8.4490403e+10 0.081407035 0.034666035 -34.434036 58.168089 6509.8581 7.3329085e+10 0.090521651 0.035255887 -34.642831 58.012330 6511.8142 6.5039491e+10 0.10019022 0.035845738 -34.851577 57.858757 6513.7702 5.8197439e+10 0.11028148 0.036435590 -35.054184 57.699127 6515.7263 5.1929156e+10 0.12061466 0.037025441 -35.256808 57.539484 6517.6824 4.6339370e+10 0.13121991 0.037615293 -35.459461 57.379817 6519.6385 4.1718969e+10 0.14222573 0.038205145 -35.632917 57.240130 6521.5946 3.8455774e+10 0.15379872 0.038794996 -35.796673 57.107081 6523.5507 3.5810350e+10 0.16120693 0.039315592 -35.986519 56.952831 6525.5067 3.2917202e+10 0.16718365 0.039724382 -36.181991 56.793170 6527.4628 2.9987123e+10 0.17261565 0.041052486 -36.372317 56.633541 6529.4189 2.7421818e+10 0.17639250 0.042903064 -36.545553 56.485487 6531.3750 2.5341820e+10 0.17930158 0.045774479 -36.704190 56.347319 6533.3311 2.3660410e+10 0.18166158 0.047660282 -36.877803 56.196571 6535.2872 2.1937663e+10 0.18177900 0.048099730 -37.062034 56.036903 6537.2432 2.0140220e+10 0.18110610 0.048799902 -37.246264 55.877237 6539.1993 1.8461447e+10 0.17947201 0.049884899 -37.420400 55.724640 6541.1554 1.6956939e+10 0.17741426 0.051276133 -37.573889 55.586499 6543.1115 1.5697589e+10 0.17542962 0.051411153 -37.734279 55.440312 6545.0676 1.4625194e+10 0.17373723 0.052456172 -37.906229 55.280646 6547.0237 1.3626083e+10 0.17154354 0.053296358 -38.060626 55.140820 6548.9797 1.2638175e+10 0.16900000 0.053960228 -38.209029 55.007769 6550.9358 1.1655146e+10 0.16726114 0.055219680 -38.376062 54.848797 6552.8919 1.0800619e+10 0.16588007 0.055362276 -38.542508 54.687492 6554.8480 1.0120372e+10 0.16381404 0.054850175 -38.680676 54.549324 6556.8041 9.5318747e+09 0.16126599 0.053894913 -38.825887 54.406676 6558.7601 8.9328027e+09 0.15845525 0.052591566 -38.997794 54.247048 6560.7162 8.2554655e+09 0.15572108 0.051628537 -39.147166 54.099867 6562.6723 7.6357124e+09 0.15318968 0.050240174 -39.280217 53.961699 6564.6284 7.1912601e+09 0.15026411 0.048486809 -39.416469 53.823531 6566.5845 6.8414603e+09 0.14743154 0.046852247 -39.554636 53.685363 6568.5406 6.4535623e+09 0.14494676 0.045274759 -39.707244 53.532755 6570.4966 6.0388762e+09 0.14283291 0.044711783 -39.865537 53.374022 6572.4527 5.6255465e+09 0.14042569 0.043970892 -39.993445 53.235881 6574.4088 5.2726536e+09 0.13735768 0.042658656 -40.121808 53.097739 6576.3649 4.9817913e+09 0.13415368 0.040951397 -40.254858 52.959571 6578.3210 4.7027756e+09 0.13081632 0.038142760 -40.386530 52.821402 6580.2771 4.4457435e+09 0.12785112 0.036264713 -40.509347 52.683235 6582.2331 4.1889436e+09 0.12542799 0.035230351 -40.637705 52.540079 6584.1892 3.9337030e+09 0.12335635 0.034412435 -40.791230 52.374271 6586.1453 3.6835774e+09 0.12159663 0.033169418 -40.927802 52.226548 6588.1014 3.4615450e+09 0.12034625 0.033346072 -41.050617 52.093498 6590.0575 3.2820826e+09 0.11843256 0.030955166 -41.173418 51.957405 6592.0136 3.1243485e+09 0.11604022 0.028060363 -41.296210 51.819264 6593.9696 2.9732789e+09 0.11376409 0.026200755 -41.415724 51.681106 6595.9257 2.8196469e+09 0.11118132 0.025719571 -41.533422 51.542939 6597.8818 2.6758689e+09 0.10934977 0.025444465 -41.654648 51.404771 6599.8379 2.5496798e+09 0.10829088 0.024980125 -41.777465 51.266602 6601.7940 2.4577366e+09 0.10746570 0.027419603 -41.892757 51.128435 6603.7500 2.3326981e+09 0.10587415 0.026219247 -42.005337 50.990267 6605.7061 2.2069271e+09 0.10525097 0.027257431 -42.140301 50.830514 6607.6622 2.0713359e+09 0.10329411 0.024399372 -42.277168 50.668926 6609.6183 1.9403739e+09 0.10032153 0.023889595 -42.389728 50.530786 6611.5744 1.8525694e+09 0.097448662 0.024592172 -42.502292 50.392640 6613.5305 1.7204468e+09 0.096389013 0.023768218 -42.614873 50.254474 6615.4865 1.6007268e+09 0.094908703 0.023266501 -42.727454 50.115060 6617.4426 1.4890244e+09 0.093748510 0.023586001 -42.840034 49.971774 6619.3987 1.3771016e+09 0.092893505 0.024622116 -42.951132 49.829971 6621.3548 1.3097791e+09 0.091617412 0.024971849 -43.058597 49.691803 6623.3109 1.2321013e+09 0.090034327 0.024607000 -43.166061 49.553636 6625.2670 1.1845187e+09 0.088804472 0.025716166 -43.273525 49.415469 6627.2230 1.1625113e+09 0.086881548 0.025402968 -43.380988 49.277302 6629.1791 1.1178405e+09 0.086055131 0.026076719 -43.488451 49.139135 6631.1352 1.0627003e+09 0.084735126 0.025944500 -43.593720 49.000979 6633.0913 9.8471992e+08 0.084012756 0.026168191 -43.696046 48.862839 6635.0474 9.2873054e+08 0.082994406 0.026406892 -43.798382 48.724685 6637.0035 8.9866370e+08 0.081674104 0.026159720 -43.900729 48.586518 6638.9595 8.8045322e+08 0.080644943 0.025629838 -44.003076 48.448349 6640.9156 8.5604677e+08 0.081293553 0.025158624 -44.105423 48.310181 6642.8717 8.1294306e+08 0.081109882 0.025187368 -44.207769 48.169124 6644.8278 7.8099397e+08 0.080218427 0.025433072 -44.310114 48.025840 6646.7839 7.2819508e+08 0.079372429 0.026325903 -44.409337 47.885679 6648.7400 6.8677146e+08 0.078459207 0.027459610 -44.506567 47.747511 6650.6960 6.5734620e+08 0.078130431 0.026414579 -44.597560 47.622297 6652.6521 6.2988438e+08 0.077785316 0.027429945 -44.685283 47.503870 6654.6082 6.2178869e+08 0.076712511 0.027777127 -44.776582 47.378017 6656.5643 5.9927658e+08 0.074973991 0.028518684 -44.873811 47.239849 6658.5204 5.8480877e+08 0.073540400 0.030983955 -44.968871 47.101693 6660.4764 5.6610537e+08 0.072277744 0.032059065 -45.060965 46.963553 6662.4325 5.4898155e+08 0.070979122 0.032801597 -45.155459 46.823007 6664.3886 5.2672905e+08 0.069993840 0.030784172 -45.252689 46.679722 6666.3447 5.0339525e+08 0.070059361 0.026975763 -45.347290 46.539064 6668.3008 4.7383548e+08 0.069530437 0.027736942 -45.439402 46.400896 6670.2569 4.4501448e+08 0.069583868 0.027209633 -45.531514 46.262729 6672.2129 4.2382033e+08 0.069668996 0.027003025 -45.623626 46.124561 6674.1690 4.0721249e+08 0.069122533 0.029097375 -45.715738 45.986393 6676.1251 3.9338255e+08 0.067317519 0.031794356 -45.807849 45.848225 6678.0812 3.6719866e+08 0.066919967 0.030882310 -45.896629 45.706727 6680.0373 3.4877361e+08 0.067500174 0.029449465 -45.983623 45.563443 6681.9934 3.3200491e+08 0.068506591 0.030419446 -46.065012 45.437480 6683.9494 3.2328369e+08 0.068945472 0.032579995 -46.143963 45.319054 6685.9055 3.1316225e+08 0.068755723 0.033661292 -46.226260 45.192409 6687.8616 3.0153303e+08 0.066878365 0.033862375 -46.313239 45.054267 6689.8177 2.9104325e+08 0.065195104 0.033279974 -46.400224 44.916114 6691.7738 2.8280933e+08 0.064452335 0.032818704 -46.487218 44.777946 6693.7299 2.6984716e+08 0.063901793 0.031353704 -46.574212 44.637178 6695.6859 2.5180205e+08 0.064116631 0.029733475 -46.661208 44.493894 6697.6420 2.3909660e+08 0.063749311 0.030172514 -46.745367 44.353445 6699.5981 2.2893928e+08 0.062603909 0.031038556 -46.827244 44.215277 6701.5542 2.1959267e+08 0.061132396 0.032222591 -46.912190 44.077109 6703.5103 2.1387832e+08 0.061245394 0.034952084 -46.999184 43.938942 6705.4663 2.0230214e+08 0.061457952 0.037497681 -47.075318 43.813523 6707.4224 1.9518939e+08 0.061088883 0.040126313 -47.145497 43.695096 6709.3785 1.9109836e+08 0.060214269 0.040891790 -47.219955 43.567575 6711.3346 1.8281776e+08 0.058448510 0.041072912 -47.301833 43.424290 6713.2907 1.7720169e+08 0.056446354 0.044737951 -47.383703 43.283123 6715.2468 1.7113254e+08 0.054476239 0.047630970 -47.465564 43.144983 6717.2028 1.6476759e+08 0.052271944 0.049861722 -47.545093 43.006830 6719.1589 1.5750803e+08 0.049856659 0.051218845 -47.621853 42.868662 6721.1150 1.5435614e+08 0.049750746 0.050338552 -47.701188 42.730495 6723.0711 1.4495892e+08 0.048148720 0.049408594 -47.783065 42.592327 6725.0272 1.3883716e+08 0.043385712 0.041559045 -47.862133 42.451351 6726.9833 1.3204355e+08 0.041019767 0.040960235 -47.938894 42.308067 6728.9393 1.2364449e+08 0.039824923 0.040959454 -48.009130 42.179567 6730.8954 1.1958677e+08 0.037193010 0.041606639 -48.074921 42.061141 6732.8515 1.1599042e+08 0.035039319 0.043896969 -48.144166 41.936499 6734.8076 1.1488847e+08 0.033985264 0.049305009 -48.220927 41.798330 6736.7637 1.1202498e+08 0.034527366 0.053242114 -48.297688 41.660161 6738.7198 1.0712876e+08 0.034126422 0.061283674 -48.374446 41.521994 6740.6758 1.0230257e+08 0.032076119 0.065204914 -48.451199 41.381758 6742.6319 96591732. 0.027794766 0.070150544 -48.527944 41.238502 6744.5880 94182902. 0.022981368 0.078248217 -48.602383 41.097546 6746.5441 88050181. 0.018186211 0.072661673 -48.674025 40.959378 6748.5002 81194790. 0.013943761 0.069648303 -48.745667 40.821211 6750.4563 76927747. 0.0085807655 0.072783199 -48.817309 40.683043 6752.4123 71317534. 0.0016369821 0.073657329 -48.885771 40.555609 6754.3684 70902455. -0.0042427839 0.075621011 -48.951564 40.437183 6756.3245 67755158. -0.018540985 0.075001893 -49.018900 40.313549 6758.2806 67091305. -0.086590755 0.074298651 -49.090542 40.175382 6760.2367 61746662. -0.029712964 0.076512580 -49.162185 40.037215 6762.1927 54307958. 0.11809848 0.077739927 -49.233827 39.899047