# # 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 = 51.611412 km # Date (UTC) = 2014-12-02T08:52:17.428 # Date (julian) = 2456993.86964616 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6490.1473 2.4409469e+11 0.024910109 0.029312168 -9.8072694 55.892938 6492.5972 1.9488053e+11 0.034094767 0.030050911 -9.9568040 55.794673 6495.0470 1.5934779e+11 0.042875817 0.030789655 -10.112500 55.690957 6497.4969 1.3208953e+11 0.051241717 0.031528398 -10.275922 55.580405 6499.9467 1.0903242e+11 0.059172339 0.032267141 -10.437600 55.468108 6502.3966 9.0845434e+10 0.066480923 0.033005884 -10.596215 55.352752 6504.8464 7.7563692e+10 0.073151208 0.033744627 -10.749849 55.242227 6507.2962 6.8027824e+10 0.079460012 0.034483371 -10.890839 55.143961 6509.7461 6.0136719e+10 0.085833373 0.035222114 -11.031829 55.045696 6512.1959 5.3250409e+10 0.092630805 0.035960857 -11.189423 54.935858 6514.6458 4.6930157e+10 0.10011975 0.036699600 -11.348039 54.825308 6517.0956 4.1580098e+10 0.10881878 0.037438343 -11.487804 54.725330 6519.5454 3.7339354e+10 0.11928272 0.038177086 -11.624539 54.627051 6521.9953 3.3745398e+10 0.13169267 0.038915830 -11.770175 54.519870 6524.4451 3.0445777e+10 0.13928656 0.039585094 -11.923984 54.404512 6526.8950 2.7413043e+10 0.14750638 0.040606357 -12.068377 54.296688 6529.3448 2.4914546e+10 0.15546722 0.042785037 -12.200822 54.198423 6531.7947 2.2896441e+10 0.16438585 0.046385304 -12.334925 54.098445 6534.2445 2.1016270e+10 0.17005086 0.048012951 -12.483928 53.983088 6536.6943 1.9151147e+10 0.17242711 0.048411740 -12.632836 53.867825 6539.1442 1.7237208e+10 0.17238966 0.049818150 -12.777033 53.757274 6541.5940 1.5548095e+10 0.17019897 0.051133894 -12.921230 53.646724 6544.0439 1.4158718e+10 0.16761924 0.051679927 -13.050392 53.543686 6546.4937 1.2967881e+10 0.16564203 0.052870762 -13.178581 53.441136 6548.9435 1.1934585e+10 0.16363478 0.053949420 -13.316357 53.333793 6551.3934 1.0976835e+10 0.16231529 0.055373834 -13.460553 53.223241 6553.8432 1.0156302e+10 0.16056068 0.054911189 -13.594228 53.116844 6556.2931 9.5449279e+09 0.15875353 0.053970039 -13.718128 53.014307 6558.7429 8.9542543e+09 0.15678831 0.052606256 -13.844782 52.909491 6561.1927 8.3551736e+09 0.15433290 0.051277699 -13.984172 52.794133 6563.6426 7.6888505e+09 0.15219462 0.049185039 -14.121639 52.680438 6566.0924 7.0491016e+09 0.15033447 0.047130596 -14.241267 52.582173 6568.5423 6.5552288e+09 0.14916080 0.045273185 -14.360895 52.483907 6570.9921 6.1405660e+09 0.14787987 0.044506542 -14.491839 52.372709 6573.4420 5.7604874e+09 0.14624475 0.043302823 -14.626422 52.257353 6575.8918 5.3849650e+09 0.14408696 0.041479956 -14.750903 52.150655 6578.3416 5.0277255e+09 0.14165615 0.038110128 -14.870547 52.048103 6580.7915 4.7023816e+09 0.13891067 0.035789312 -14.993594 51.941250 6583.2413 4.4079692e+09 0.13660105 0.034899521 -15.123371 51.825894 6585.6912 4.1177619e+09 0.13380835 0.033418205 -15.249464 51.713811 6588.1410 3.8542094e+09 0.13143884 0.033332842 -15.364819 51.611273 6590.5908 3.6437869e+09 0.12837219 0.029963003 -15.480174 51.508734 6593.0407 3.4768984e+09 0.12567767 0.027064395 -15.608723 51.394468 6595.4905 3.2845159e+09 0.12304167 0.025674440 -15.738499 51.279110 6597.9404 3.0629571e+09 0.12118130 0.025425982 -15.864266 51.163754 6600.3902 2.8336286e+09 0.12097565 0.025792076 -15.989237 51.048398 6602.8401 2.6523069e+09 0.12050145 0.026799767 -16.103749 50.942693 6605.2899 2.5239224e+09 0.11981521 0.026908241 -16.214847 50.840141 6607.7397 2.3992512e+09 0.11802353 0.024246298 -16.331681 50.732294 6610.1896 2.2718212e+09 0.11484830 0.024184114 -16.456651 50.616938 6612.6394 2.1316358e+09 0.11297760 0.023843004 -16.575573 50.505851 6615.0893 2.0187562e+09 0.11174678 0.023254278 -16.682384 50.403312 6617.5391 1.9234953e+09 0.11035016 0.023617986 -16.789208 50.300760 6619.9889 1.8236043e+09 0.10956778 0.024764529 -16.909257 50.185515 6622.4388 1.7277352e+09 0.10792565 0.024641203 -17.029420 50.070159 6624.8886 1.6254588e+09 0.10610499 0.025337986 -17.149584 49.954801 6627.3385 1.5442660e+09 0.10364610 0.025447554 -17.269748 49.839443 6629.7883 1.4635947e+09 0.10198501 0.025966576 -17.375256 49.734745 6632.2381 1.3942391e+09 0.099609547 0.026060901 -17.477794 49.632208 6634.6880 1.3317084e+09 0.097470859 0.026377028 -17.586624 49.523378 6637.1378 1.2662723e+09 0.095263024 0.026093906 -17.701981 49.408020 6639.5877 1.2013556e+09 0.093980266 0.025418027 -17.812083 49.297917 6642.0375 1.1387924e+09 0.093680494 0.025153231 -17.914635 49.195364 6644.4874 1.0845729e+09 0.092123285 0.025396279 -18.017747 49.091914 6646.9372 1.0392086e+09 0.090664941 0.026405271 -18.128298 48.976559 6649.3870 9.9699284e+08 0.089497482 0.027100174 -18.238848 48.861203 6651.8369 9.4289398e+08 0.089190721 0.027125513 -18.349398 48.741089 6654.2867 8.9634875e+08 0.088450635 0.027914080 -18.459948 48.620926 6656.7366 8.4707872e+08 0.086510941 0.028669894 -18.570499 48.505131 6659.1864 8.0392067e+08 0.084831351 0.031795715 -18.681050 48.389773 6661.6362 7.6947007e+08 0.083275496 0.032859003 -18.781422 48.285038 6664.0861 7.3514668e+08 0.081713755 0.031891101 -18.879688 48.182501 6666.5359 7.0379101e+08 0.081585122 0.027013027 -18.981602 48.073707 6668.9858 6.7027906e+08 0.080150655 0.028343110 -19.087346 47.958350 6671.4356 6.3298975e+08 0.080158131 0.026871556 -19.193096 47.841026 6673.8855 6.0077948e+08 0.079252339 0.028783476 -19.298856 47.720845 6676.3353 5.6888053e+08 0.076644895 0.031929819 -19.404611 47.602243 6678.7851 5.3954249e+08 0.075450875 0.030411482 -19.510355 47.486887 6681.2350 5.1449073e+08 0.076231629 0.029837628 -19.613198 47.374694 6683.6848 4.9224667e+08 0.076420452 0.032192189 -19.707191 47.272156 6686.1347 4.7292456e+08 0.075451713 0.033839431 -19.801183 47.169617 6688.5845 4.5382751e+08 0.072125552 0.033920113 -19.901470 47.055461 6691.0343 4.3312074e+08 0.070392738 0.032993160 -20.002409 46.940103 6693.4842 4.1130950e+08 0.069089703 0.031437984 -20.103346 46.820777 6695.9340 3.9153400e+08 0.068455996 0.029687904 -20.204283 46.700614 6698.3839 3.7366012e+08 0.067227671 0.030744717 -20.305220 46.584033 6700.8337 3.5858399e+08 0.065143074 0.031286102 -20.406158 46.468677 6703.2835 3.4206813e+08 0.064789178 0.034384764 -20.507095 46.353320 6705.7334 3.2219922e+08 0.064989468 0.037972425 -20.608032 46.237962 6708.1832 3.0752374e+08 0.064651770 0.040243110 -20.706162 46.119796 6710.6331 2.9324713e+08 0.063119477 0.040620411 -20.802293 45.999632 6713.0829 2.8062901e+08 0.060884574 0.043986507 -20.898432 45.881881 6715.5328 2.6755003e+08 0.058699893 0.047923475 -20.994576 45.766508 6717.9826 2.5200056e+08 0.056458243 0.049813490 -21.090715 45.651141 6720.4324 2.4082324e+08 0.055480898 0.050369661 -21.186846 45.535784 6722.8823 2.2777011e+08 0.054822765 0.049514477 -21.282977 45.418777 6725.3321 2.1756843e+08 0.050353090 0.041368560 -21.379109 45.298614 6727.7820 2.0670593e+08 0.049126265 0.039918588 -21.473978 45.179713 6730.2318 1.9970405e+08 0.047656357 0.040696734 -21.565301 45.064357 6732.6816 1.9273796e+08 0.045995534 0.043865698 -21.656625 44.949000 6735.1315 1.8468713e+08 0.046018598 0.049433015 -21.747950 44.833642 6737.5813 1.7832039e+08 0.047677965 0.055987400 -21.839275 44.717796 6740.0312 1.7030029e+08 0.047617245 0.064103609 -21.930599 44.597632 6742.4810 1.6637269e+08 0.044474291 0.069782824 -22.021924 44.477570 6744.9309 1.5732062e+08 0.040209772 0.078513402 -22.113247 44.362214 6747.3807 1.4826570e+08 0.035543669 0.067230103 -22.204571 44.246858 6749.8305 1.3785306e+08 0.033431645 0.072050532 -22.295895 44.131501 6752.2804 1.3099673e+08 0.030132682 0.073810029 -22.387220 44.016143 6754.7302 1.2803115e+08 0.028471840 0.075039190 -22.474411 43.896651 6757.1801 1.2237404e+08 0.025724705 0.076193625 -22.560929 43.776487 6759.6299 1.2064901e+08 0.026790294 0.075971960 -22.647457 43.660056 6762.0797 1.1586085e+08 0.030616657 0.077922214 -22.733988 43.544681 6764.5296 1.0903758e+08 0.033913648 0.079508656 -22.829156 43.413949 6766.9794 1.0334167e+08 0.034293078 0.081929224 -22.928035 43.276617 6769.4293 96787928. 0.028931174 0.085495420 -23.016049 43.158602 6771.8791 93247272. 0.024481326 0.091437362 -23.102567 43.043246 6774.3289 90759074. 0.020036391 0.097379305 -23.189084 42.927888 6776.7788 85246483. 0.015566820 0.10332125 -23.275601 42.812531 6779.2286 82534364. 0.011100544 0.10926319 -23.367050 42.681394 6781.6785 77097278. 0.0065883725 0.11520513 -23.460437 42.544061 6784.1283 74012613. 0.0020551443 0.12114707 -23.547658 42.426455 6786.5782 70722235. -0.0025593194 0.12708902 -23.634176 42.311099 6789.0280 66265914. -0.0073566580 0.13303096 -23.716766 42.195741 6791.4778 63902383. -0.012370703 0.13897290 -23.798478 42.080384 6793.9277 59612839. -0.018731284 0.14491484 -23.888789 41.948839 6796.3775 55407239. -0.034717206 0.15085679 -23.982175 41.811506 6798.8274 52426084. -0.029721412 0.15679873 -24.064864 41.694309 6801.2772 49983661. -0.011916887 0.16274067 -24.146576 41.578953