# # 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 = 53.885449 km # Date (UTC) = 2014-12-01T09:43:40.122 # Date (julian) = 2456992.90532549 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6496.6570 1.2936193e+11 0.039018805 0.031275147 -22.806455 56.062045 6498.9467 1.0811536e+11 0.046752617 0.031965588 -22.960155 55.958720 6501.2364 9.1362910e+10 0.054246463 0.032656028 -23.112893 55.855398 6503.5260 7.8942169e+10 0.061637715 0.033346469 -23.256114 55.758513 6505.8157 6.9533895e+10 0.069135455 0.034036910 -23.391879 55.666672 6508.1053 6.2372556e+10 0.076978362 0.034727351 -23.528346 55.573933 6510.3950 5.5982781e+10 0.085212239 0.035417792 -23.676590 55.466117 6512.6847 5.0317938e+10 0.093944553 0.036108233 -23.824835 55.358302 6514.9743 4.5479258e+10 0.10334835 0.036798674 -23.959403 55.263750 6517.2640 4.1570600e+10 0.11366958 0.037489114 -24.091174 55.171910 6519.5536 3.8105576e+10 0.12484193 0.038179555 -24.228314 55.076327 6521.8433 3.4737663e+10 0.13676243 0.038869996 -24.376559 54.973005 6524.1330 3.1476040e+10 0.14327501 0.039474192 -24.524357 54.869233 6526.4226 2.8369170e+10 0.14899791 0.040111146 -24.668131 54.761402 6528.7123 2.5726622e+10 0.15461366 0.042007529 -24.811905 54.653571 6531.0019 2.3540517e+10 0.15943052 0.045231490 -24.938206 54.559718 6533.2916 2.1805087e+10 0.16518917 0.047643505 -25.061991 54.467877 6535.5813 2.0295339e+10 0.16802852 0.047972152 -25.191498 54.371791 6537.8709 1.8778827e+10 0.17078503 0.049095821 -25.330759 54.268469 6540.1606 1.7267417e+10 0.17187146 0.050929960 -25.470020 54.164501 6542.4502 1.5754308e+10 0.17008624 0.051173170 -25.609281 54.056686 6544.7399 1.4409432e+10 0.16831858 0.052244561 -25.748541 53.948870 6547.0296 1.3282740e+10 0.16637321 0.053298602 -25.869934 53.855716 6549.3192 1.2335882e+10 0.16429195 0.054291580 -25.989726 53.763876 6551.6089 1.1477631e+10 0.16292065 0.055449474 -26.115709 53.665432 6553.8985 1.0605408e+10 0.16101800 0.054883388 -26.250477 53.557619 6556.1882 9.7612102e+09 0.15923816 0.053985458 -26.382444 53.452047 6558.4778 9.0354196e+09 0.15758361 0.052832118 -26.502251 53.356200 6560.7675 8.4450060e+09 0.15522644 0.051582301 -26.622058 53.260353 6563.0572 7.9206140e+09 0.15325121 0.049862236 -26.749019 53.159398 6565.3468 7.4102523e+09 0.15133748 0.047924569 -26.879296 53.056076 6567.6365 6.9011342e+09 0.14991502 0.046079020 -27.007518 52.950699 6569.9261 6.3994852e+09 0.14886729 0.044912702 -27.133301 52.842884 6572.2158 5.9605260e+09 0.14746679 0.044106568 -27.256775 52.737840 6574.5055 5.5932531e+09 0.14549164 0.042612230 -27.372574 52.642007 6576.7951 5.2792509e+09 0.14340484 0.040456185 -27.488374 52.546174 6579.0848 4.9959940e+09 0.14052008 0.037023886 -27.611430 52.441631 6581.3744 4.6751203e+09 0.13822680 0.035483221 -27.737213 52.333816 6583.6641 4.3769327e+09 0.13591477 0.034685525 -27.853996 52.232002 6585.9538 4.1310227e+09 0.13317288 0.033208258 -27.961809 52.136170 6588.2434 3.9304703e+09 0.13098793 0.033298638 -28.069672 52.040292 6590.5331 3.7501633e+09 0.12822642 0.030070442 -28.190884 51.932547 6592.8227 3.5438542e+09 0.12596236 0.027274388 -28.312194 51.824716 6595.1124 3.3258066e+09 0.12389820 0.025635228 -28.433489 51.720361 6597.4021 3.1189086e+09 0.12183038 0.025595850 -28.554781 51.617039 6599.6917 2.9370154e+09 0.12099100 0.024971334 -28.668730 51.517796 6601.9814 2.7858821e+09 0.12090789 0.027507867 -28.776542 51.421964 6604.2710 2.6593974e+09 0.11967224 0.026232214 -28.884717 51.325647 6606.5607 2.5397099e+09 0.11910815 0.026496393 -29.001516 51.217832 6608.8504 2.4200542e+09 0.11624859 0.023709888 -29.118315 51.110017 6611.1400 2.2823974e+09 0.11337589 0.024869161 -29.231456 51.002201 6613.4297 2.1530293e+09 0.11247994 0.023731243 -29.343763 50.894386 6615.7193 2.0405918e+09 0.11099362 0.023273664 -29.451077 50.791270 6618.0090 1.9475335e+09 0.11011634 0.023777596 -29.554896 50.691444 6620.2987 1.8688960e+09 0.10910334 0.024863442 -29.659430 50.590945 6622.5883 1.7895527e+09 0.10740762 0.024601400 -29.771754 50.483115 6624.8780 1.7047285e+09 0.10556437 0.025332290 -29.884078 50.375286 6627.1676 1.6148379e+09 0.10322510 0.025381569 -29.996387 50.267468 6629.4573 1.5278487e+09 0.10177128 0.026026423 -30.108693 50.159653 6631.7470 1.4468169e+09 0.099620537 0.026006642 -30.210586 50.059413 6634.0366 1.3822876e+09 0.097568544 0.026329514 -30.306419 49.963581 6636.3263 1.3305547e+09 0.095402893 0.026423044 -30.404358 49.866216 6638.6159 1.2790565e+09 0.093679908 0.025644807 -30.516666 49.758401 6640.9056 1.2261394e+09 0.093716885 0.025159850 -30.628973 49.650585 6643.1953 1.1659780e+09 0.093153483 0.025222101 -30.737228 49.542771 6645.4849 1.1057569e+09 0.092191422 0.025678853 -30.845043 49.434958 6647.7746 1.0520704e+09 0.091241311 0.026845601 -30.942063 49.335240 6650.0642 1.0069596e+09 0.090509454 0.026269944 -31.033904 49.239405 6652.3539 9.7308850e+08 0.089903832 0.027347894 -31.127715 49.140745 6654.6436 9.3792570e+08 0.088865805 0.027762062 -31.231053 49.028421 6656.9332 8.9983256e+08 0.086830537 0.028842500 -31.334390 48.916098 6659.2229 8.5598890e+08 0.085224232 0.031788105 -31.441961 48.808038 6661.5125 8.0967056e+08 0.083813942 0.032795998 -31.549776 48.700223 6663.8022 7.6632241e+08 0.082375669 0.032260903 -31.651124 48.592408 6666.0919 7.2658478e+08 0.082280954 0.026926495 -31.749954 48.484594 6668.3815 6.9262957e+08 0.081216660 0.027808393 -31.845334 48.382694 6670.6712 6.6966844e+08 0.080660090 0.027017685 -31.937174 48.286860 6672.9608 6.4577310e+08 0.080056300 0.027436520 -32.029014 48.191026 6675.2505 6.2217638e+08 0.078031216 0.030278157 -32.127770 48.078896 6677.5402 5.9448570e+08 0.075986088 0.031590324 -32.226600 47.966589 6679.8298 5.6599048e+08 0.075765210 0.029582045 -32.325431 47.857712 6682.1195 5.4172636e+08 0.076314026 0.030515830 -32.424261 47.749898 6684.4091 5.1741188e+08 0.076183476 0.032674854 -32.523091 47.642084 6686.6988 4.9407563e+08 0.074633480 0.034167657 -32.621920 47.534268 6688.9885 4.6711668e+08 0.071416908 0.034013360 -32.719352 47.426453 6691.2781 4.5046717e+08 0.070240749 0.032935645 -32.813691 47.318640 6693.5678 4.3009241e+08 0.069209029 0.031409306 -32.908031 47.210442 6695.8574 4.1569543e+08 0.068890488 0.029701972 -33.002382 47.098119 6698.1471 3.9900802e+08 0.068094959 0.030419727 -33.096734 46.985795 6700.4368 3.7793105e+08 0.066427925 0.030991674 -33.191073 46.877346 6702.7264 3.6031097e+08 0.065613249 0.033456778 -33.285410 46.769531 6705.0161 3.4363114e+08 0.065953966 0.036697189 -33.379747 46.661717 6707.3057 3.3406595e+08 0.065561965 0.040143030 -33.474084 46.553904 6709.5954 3.2025115e+08 0.064744183 0.040753841 -33.566592 46.444260 6711.8851 3.0899855e+08 0.062629730 0.041699185 -33.656438 46.331953 6714.1747 2.9367461e+08 0.060480630 0.047316544 -33.747099 46.220460 6716.4644 2.7884563e+08 0.058665803 0.049085345 -33.841436 46.112645 6718.7540 2.6669775e+08 0.056273087 0.050986769 -33.935773 46.004829 6721.0437 2.5483619e+08 0.056500156 0.050317065 -34.025820 45.892724 6723.3334 2.4371861e+08 0.055219972 0.049554863 -34.115665 45.780417 6725.6230 2.3588595e+08 0.050990390 0.041186851 -34.202236 45.671386 6727.9127 2.2569463e+08 0.050051899 0.039744440 -34.287590 45.563571 6730.2023 2.1867554e+08 0.048633769 0.040656330 -34.375204 45.455756 6732.4920 2.1179004e+08 0.047044479 0.043830784 -34.465048 45.347942 6734.7817 2.0006174e+08 0.046852126 0.049306570 -34.553648 45.238883 6737.0713 1.9099117e+08 0.048619798 0.054362742 -34.639002 45.126576 6739.3610 1.7920762e+08 0.049192622 0.063268317 -34.724357 45.014498 6741.6506 1.7575535e+08 0.047325704 0.067614341 -34.809722 44.906667 6743.9403 1.7170684e+08 0.042457608 0.077390643 -34.895088 44.798836 6746.2300 1.6652717e+08 0.040422553 0.076313797 -34.980442 44.691019 6748.5196 1.6138490e+08 0.037332315 0.069750609 -35.065795 44.583206 6750.8093 1.5121039e+08 0.034603260 0.073386000 -35.151148 44.472700 6753.0989 1.4680331e+08 0.031744312 0.073297459 -35.236502 44.360393 6755.3886 1.4136627e+08 0.029587341 0.074434972 -35.326407 44.244013 6757.6783 1.3785083e+08 0.027869299 0.074681737 -35.423956 44.120792 6759.9679 1.3159090e+08 0.028619084 0.076053528 -35.514404 44.002215 6762.2576 1.2331477e+08 0.032566633 0.077635358 -35.595265 43.889909 6764.5472 1.1585595e+08 0.035483456 0.079509502 -35.676126 43.778498 6766.8369 1.1257392e+08 0.035771100 0.081606815 -35.756987 43.670685 6769.1266 1.1184167e+08 0.030647512 0.084761207 -35.837848 43.562871 6771.4162 1.0717904e+08 0.026298273 0.090314639 -35.918709 43.455056 6773.7059 1.0351937e+08 0.021932055 0.095868071 -35.999570 43.347241 6775.9955 97474293. 0.017549208 0.10142150 -36.089065 43.224077 6778.2852 94522653. 0.013161631 0.10697493 -36.181479 43.095724 6780.5749 90981030. 0.0087673042 0.11252837 -36.261063 42.983793 6782.8645 88525184. 0.0043777560 0.11808180 -36.337432 42.875979 6785.1542 85609551. -1.9836069e-05 0.12363523 -36.423003 42.756385 6787.4438 82069784. -0.0044412563 0.12918866 -36.515417 42.628032 6789.7335 78818140. -0.0088717149 0.13474209 -36.597791 42.512531 6792.0232 72476476. -0.013448549 0.14029552 -36.674160 42.404716 6794.3128 69715860. -0.017926567 0.14584896 -36.754891 42.290743 6796.6025 69017607. -0.022348569 0.15140239 -36.842170 42.167523 6798.8921 65541477. -0.027069479 0.15695582 -36.924518 42.049236 6801.1818 60755127. -0.032238349 0.16250925 -37.000888 41.936929 6803.4715 58076710. -0.037881180 0.16806268 -37.079722 41.822157 6805.7611 56043648. -0.045536156 0.17361612 -37.167002 41.698938 6808.0508 55723809. -0.070020286 0.17916955 -37.252854 41.574291 6810.3404 53574243. -0.056447147 0.18472298 -37.335000 41.445938 6812.6301 48669557. -0.019926139 0.19027641 -37.413752 41.324372