# # 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 = 49.069108 km # Date (UTC) = 2014-12-27T10:33:01.009 # Date (julian) = 2457018.93959501 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6497.0636 7.6931863e+10 0.034698990 0.031397739 -38.486129 49.290108 6499.0637 7.1080109e+10 0.040937303 0.032000863 -38.580307 49.206394 6501.0638 6.6146732e+10 0.047378990 0.032603986 -38.672096 49.122680 6503.0639 6.1982049e+10 0.054168795 0.033207110 -38.762786 49.038966 6505.0640 5.8193797e+10 0.061387730 0.033810234 -38.853476 48.955251 6507.0641 5.4344764e+10 0.068997467 0.034413358 -38.950228 48.859769 6509.0642 5.0316175e+10 0.076976891 0.035016481 -39.048332 48.761665 6511.0643 4.6379323e+10 0.085418245 0.035619605 -39.144441 48.667437 6513.0643 4.2619123e+10 0.094383597 0.036222729 -39.235144 48.583713 6515.0644 3.9438651e+10 0.10408798 0.036825853 -39.325847 48.499988 6517.0645 3.6699402e+10 0.11451378 0.037428976 -39.415139 48.414863 6519.0646 3.4184087e+10 0.12556886 0.038032100 -39.502341 48.327661 6521.0647 3.1876956e+10 0.13723628 0.038635224 -39.589543 48.240459 6523.0648 2.9711045e+10 0.14647735 0.039195181 -39.676745 48.155126 6525.0649 2.7670287e+10 0.15406240 0.039774805 -39.763947 48.071412 6527.0650 2.5777579e+10 0.16012522 0.040763677 -39.851149 47.987698 6529.0651 2.4026296e+10 0.16474598 0.042339513 -39.936016 47.903984 6531.0652 2.2433258e+10 0.16935371 0.045323600 -40.019729 47.820271 6533.0653 2.0981497e+10 0.17387644 0.047547342 -40.103443 47.736557 6535.0654 1.9612734e+10 0.17535983 0.048195923 -40.187166 47.650036 6537.0655 1.8311481e+10 0.17489457 0.048716109 -40.270891 47.562823 6539.0656 1.7124195e+10 0.17337070 0.049723036 -40.354617 47.475609 6541.0657 1.6000868e+10 0.17184342 0.051305223 -40.438331 47.391670 6543.0658 1.4944281e+10 0.17027423 0.051399161 -40.522044 47.307955 6545.0659 1.3952945e+10 0.16902702 0.052456157 -40.605757 47.224001 6547.0660 1.3050731e+10 0.16734237 0.053312458 -40.689472 47.136799 6549.0661 1.2226365e+10 0.16536968 0.054033623 -40.773186 47.049597 6551.0662 1.1486035e+10 0.16412484 0.055258981 -40.856198 46.963097 6553.0663 1.0772866e+10 0.16326359 0.055301752 -40.936435 46.879373 6555.0664 1.0126680e+10 0.16194846 0.054797597 -41.016671 46.795649 6557.0665 9.5049745e+09 0.16021091 0.053824445 -41.100267 46.707102 6559.0666 8.8512147e+09 0.15795892 0.052379668 -41.190523 46.608998 6561.0667 8.2040116e+09 0.15581222 0.051339832 -41.280778 46.510895 6563.0668 7.5806476e+09 0.15416728 0.049851145 -41.363140 46.424116 6565.0669 7.0571771e+09 0.15245245 0.048242485 -41.443365 46.340401 6567.0669 6.6235553e+09 0.15069957 0.046560581 -41.523591 46.256686 6569.0670 6.2349887e+09 0.14884751 0.044856788 -41.603817 46.169763 6571.0671 5.8865231e+09 0.14746775 0.044484938 -41.684042 46.082561 6573.0672 5.5710007e+09 0.14570637 0.043603525 -41.764082 45.995545 6575.0673 5.2728759e+09 0.14348579 0.042307150 -41.840820 45.911830 6577.0674 4.9935534e+09 0.14083642 0.040114455 -41.917559 45.828116 6579.0675 4.7231436e+09 0.13787740 0.037033375 -41.994299 45.743749 6581.0676 4.4724463e+09 0.13573731 0.035576132 -42.071047 45.656536 6583.0677 4.2423822e+09 0.13436167 0.034987390 -42.147795 45.569323 6585.0678 4.0364996e+09 0.13286583 0.033916556 -42.224540 45.483228 6587.0679 3.8459610e+09 0.13125119 0.033173416 -42.301277 45.399515 6589.0680 3.6654640e+09 0.12960897 0.032911055 -42.378014 45.315802 6591.0681 3.4918111e+09 0.12748786 0.029125062 -42.453172 45.230509 6593.0682 3.3247862e+09 0.12572866 0.027038815 -42.526422 45.143307 6595.0683 3.1659480e+09 0.12357637 0.025630654 -42.599673 45.056105 6597.0684 3.0152912e+09 0.12117842 0.025701145 -42.674966 44.968903 6599.0685 2.8829224e+09 0.11934289 0.024933850 -42.751703 44.881701 6601.0686 2.7493519e+09 0.11922608 0.027077990 -42.828440 44.794499 6603.0687 2.6204041e+09 0.11807774 0.026622614 -42.909264 44.702269 6605.0688 2.4818431e+09 0.11723442 0.026722743 -42.991684 44.608075 6607.0689 2.3369772e+09 0.11587773 0.025570993 -43.072536 44.515077 6609.0690 2.2115166e+09 0.11275635 0.023726419 -43.145785 44.427875 6611.0691 2.1008758e+09 0.10971522 0.024914411 -43.219034 44.340673 6613.0692 2.0035473e+09 0.10840228 0.023598967 -43.291223 44.254532 6615.0693 1.9191734e+09 0.10672654 0.023253663 -43.360985 44.170819 6617.0694 1.8336570e+09 0.10490847 0.023462244 -43.430746 44.087106 6619.0695 1.7550274e+09 0.10359921 0.024542672 -43.502033 44.001867 6621.0695 1.6776096e+09 0.10224656 0.025066394 -43.575283 43.914665 6623.0696 1.6008105e+09 0.10048093 0.024517629 -43.648532 43.827463 6625.0697 1.5345758e+09 0.098999174 0.025480827 -43.719797 43.740255 6627.0698 1.4737024e+09 0.097024381 0.025343788 -43.789568 43.653041 6629.0699 1.4182849e+09 0.096106688 0.026096461 -43.859339 43.565828 6631.0700 1.3617689e+09 0.094566429 0.025937880 -43.935243 43.473711 6633.0701 1.2938315e+09 0.093526782 0.026164497 -44.013726 43.379530 6635.0702 1.2269455e+09 0.092299124 0.026410319 -44.090310 43.286436 6637.0703 1.1633833e+09 0.090993454 0.026126971 -44.156583 43.199234 6639.0704 1.1068343e+09 0.090063363 0.025602907 -44.222856 43.112032 6641.0705 1.0628446e+09 0.090634086 0.025148540 -44.290136 43.025837 6643.0706 1.0229677e+09 0.090086263 0.025203279 -44.359898 42.942124 6645.0707 9.9234919e+08 0.088919796 0.025484807 -44.429660 42.858410 6647.0708 9.5286414e+08 0.087628849 0.026475057 -44.497951 42.773225 6649.0709 9.1597993e+08 0.086291007 0.027535958 -44.564224 42.686024 6651.0710 8.8094947e+08 0.085744680 0.026538572 -44.630497 42.598822 6653.0711 8.4833548e+08 0.085140145 0.027561958 -44.701373 42.505563 6655.0712 8.1691278e+08 0.083687689 0.027639631 -44.775942 42.407445 6657.0713 7.7684245e+08 0.081696913 0.028983797 -44.850430 42.309468 6659.0714 7.3694710e+08 0.080048691 0.031819709 -44.916729 42.225711 6661.0715 7.0291886e+08 0.078602047 0.032571354 -44.983003 42.141997 6663.0716 6.7829672e+08 0.077187043 0.032463378 -45.049277 42.057794 6665.0717 6.5133477e+08 0.076366587 0.028429699 -45.115550 41.970592 6667.0718 6.3404206e+08 0.075696907 0.027129818 -45.181823 41.883390 6669.0719 6.1340011e+08 0.074436616 0.028281897 -45.249288 41.794282 6671.0720 5.8826577e+08 0.074637350 0.026866374 -45.319923 41.700104 6673.0721 5.6544491e+08 0.074372150 0.027566979 -45.390557 41.605925 6675.0721 5.4064968e+08 0.072990999 0.029936550 -45.458031 41.516803 6677.0722 5.2167505e+08 0.071033303 0.032255513 -45.524304 41.429601 6679.0723 5.0301025e+08 0.070521038 0.030207991 -45.590577 41.342399 6681.0724 4.8207953e+08 0.071581794 0.029712932 -45.660591 41.245845 6683.0725 4.5950418e+08 0.072204883 0.031294882 -45.731226 41.147742 6685.0726 4.3738812e+08 0.072093532 0.032781554 -45.799434 41.054088 6687.0727 4.1564598e+08 0.070524349 0.034302339 -45.862228 40.970362 6689.0728 3.9739032e+08 0.067950344 0.033950471 -45.925022 40.886636 6691.0729 3.8403205e+08 0.067133550 0.032984058 -45.991290 40.796541 6693.0730 3.7236827e+08 0.066360993 0.031579040 -46.061925 40.698437 6695.0731 3.5602548e+08 0.065881717 0.029846044 -46.132559 40.600333 6697.0732 3.4025836e+08 0.065393884 0.030100530 -46.193051 40.515103 6699.0733 3.2711901e+08 0.064182074 0.031522792 -46.252349 40.431389 6701.0734 3.1199764e+08 0.062546980 0.031517148 -46.311962 40.347275 6703.0735 3.0202896e+08 0.062341720 0.033859151 -46.382597 40.249172 6705.0736 2.8560797e+08 0.062566680 0.036799442 -46.453232 40.151068 6707.0737 2.6965163e+08 0.062292174 0.040176270 -46.518431 40.059863 6709.0738 2.5970924e+08 0.061753302 0.041085611 -46.577728 39.976150 6711.0739 2.4917492e+08 0.060240233 0.040776292 -46.637024 39.892436 6713.0740 2.4388672e+08 0.058491875 0.043954194 -46.700869 39.799899 6715.0741 2.3708376e+08 0.056814585 0.047454351 -46.767590 39.701781 6717.0742 2.2464199e+08 0.055162273 0.049869681 -46.833832 39.604368 6719.0743 2.1663065e+08 0.053210073 0.051299278 -46.893129 39.517166 6721.0744 2.0655524e+08 0.053905054 0.050326305 -46.952425 39.429964 6723.0745 2.0124694e+08 0.053006774 0.049410472 -47.013187 39.341383 6725.0746 1.9501979e+08 0.049051961 0.041529448 -47.079897 39.247203 6727.0747 1.8554807e+08 0.047709094 0.040860926 -47.146607 39.153022 6729.0748 1.7823038e+08 0.047508337 0.040995604 -47.210770 39.056294 6731.0748 1.7067345e+08 0.045888624 0.041898984 -47.273558 38.958191 6733.0749 1.6452335e+08 0.044835801 0.044331193 -47.335993 38.861541 6735.0750 1.5982983e+08 0.044978707 0.049373092 -47.395290 38.777828 6737.0751 1.5521994e+08 0.046454105 0.054374911 -47.454587 38.694114 6739.0752 1.4814880e+08 0.047008228 0.062918621 -47.514701 38.607031 6741.0753 1.4044125e+08 0.045781346 0.065973531 -47.577487 38.508928 6743.0754 1.3095472e+08 0.042276640 0.071556252 -47.640273 38.410824 6745.0755 1.2494998e+08 0.039099020 0.078598635 -47.703066 38.315401 6747.0756 1.1881330e+08 0.034293259 0.067335129 -47.765862 38.221207 6749.0757 1.1543142e+08 0.033997584 0.072257203 -47.828656 38.126474 6751.0758 1.1065492e+08 0.030869449 0.073743724 -47.891442 38.028370 6753.0759 1.0864675e+08 0.027960208 0.073222935 -47.954229 37.930266 6755.0760 1.0611277e+08 0.025925042 0.074572023 -48.017015 37.834476 6757.0761 1.0133507e+08 0.023148493 0.076509117 -48.079802 37.740297 6759.0762 97944575. 0.023833081 0.075838341 -48.142301 37.646405 6761.0763 91473865. 0.023991427 0.077974528 -48.198110 37.559204 6763.0764 88784070. 0.028662364 0.076670404 -48.253919 37.472002 6765.0765 82467472. 0.030438802 0.079545155 -48.310261 37.383583 6767.0766 83020421. 0.029891160 0.081890015 -48.369123 37.289403 6769.0767 82099838. 0.025061771 0.084640235 -48.427986 37.195223 6771.0768 80540077. 0.021099864 0.089491348 -48.489305 37.098587 6773.0769 77907886. 0.017037285 0.094342461 -48.552091 37.000483 6775.0770 70652913. 0.012515371 0.099193574 -48.614573 36.902684 6777.0771 69323855. 0.0082298978 0.10404469 -48.673435 36.808503 6779.0772 64152033. 0.0031494720 0.10889580 -48.732296 36.714322 6781.0773 64724226. -0.0019930636 0.11374691 -48.791159 36.618065 6783.0774 63108662. -0.0097892886 0.11859803 -48.850021 36.519961 6785.0774 60273099. -0.039656675 0.12344914 -48.908884 36.421858 6787.0775 57671439. -0.020944608 0.12830025 -48.967756 36.327591 6789.0776 51693247. 0.026723782 0.13315136 -49.026627 36.233398