# # 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 = 41.813337 km # Date (UTC) = 2011-01-21T07:27:45.387 # Date (julian) = 2455582.81094198 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.3390 1.3273226e+11 0.063423823 0.033290080 4.0244671 47.981140 6505.4598 1.1288421e+11 0.072658808 0.033929583 3.9198494 47.847991 6507.5805 9.7142985e+10 0.082091503 0.034569085 3.8027848 47.702964 6509.7012 8.3239009e+10 0.091664064 0.035208588 3.6807512 47.553196 6511.8220 7.1792341e+10 0.10150712 0.035848090 3.5789356 47.422918 6513.9427 6.3089456e+10 0.11180636 0.036487593 3.4790732 47.294523 6516.0634 5.5721578e+10 0.12246438 0.037127095 3.3657430 47.144325 6518.1842 4.8504057e+10 0.13327250 0.037766598 3.2492331 46.989018 6520.3049 4.1624453e+10 0.14419725 0.038406100 3.1327237 46.839218 6522.4256 3.6006062e+10 0.15431986 0.039028711 3.0196128 46.693789 6524.5464 3.1876721e+10 0.16049970 0.039621065 2.9197505 46.565394 6526.6671 2.8532808e+10 0.16551406 0.040367482 2.8187642 46.434271 6528.7879 2.5586401e+10 0.16960551 0.042067489 2.7078025 46.278923 6530.9086 2.2977336e+10 0.17307330 0.045100709 2.6001577 46.131630 6533.0293 2.0879490e+10 0.17707002 0.047532051 2.5002954 46.003237 6535.1501 1.9210207e+10 0.17858093 0.048159199 2.3993454 45.869563 6537.2708 1.7664675e+10 0.17894267 0.048812897 2.2939321 45.714215 6539.3915 1.6086281e+10 0.17834410 0.050117575 2.1925743 45.569474 6541.5123 1.4582165e+10 0.17636789 0.051160402 2.0974670 45.441079 6543.6330 1.3343864e+10 0.17385224 0.051548030 2.0023597 45.312685 6545.7537 1.2320907e+10 0.17118553 0.052462320 1.9072528 45.184292 6547.8745 1.1335708e+10 0.16935506 0.053619915 1.8102150 45.050845 6549.9952 1.0332165e+10 0.16759522 0.054980490 1.7048227 44.895528 6552.1160 9.3641632e+09 0.16546055 0.055557580 1.6052201 44.750575 6554.2367 8.5041599e+09 0.16287460 0.054837347 1.5148682 44.622180 6556.3574 7.8544743e+09 0.16043334 0.053960576 1.4245163 44.492444 6558.4782 7.3579600e+09 0.15785987 0.052831846 1.3341646 44.359295 6560.5989 6.8718992e+09 0.15479230 0.051734319 1.2421085 44.223163 6562.7196 6.3450485e+09 0.15192674 0.050195137 1.1422429 44.073364 6564.8404 5.8007212e+09 0.14916549 0.048390737 1.0477531 43.931629 6566.9611 5.2936933e+09 0.14664030 0.046639184 0.96215675 43.803234 6569.0819 4.8946312e+09 0.14395705 0.044857752 0.87525824 43.673538 6571.2026 4.5852280e+09 0.14166059 0.044447944 0.78490660 43.540389 6573.3233 4.2854726e+09 0.13886811 0.043398020 0.69292861 43.404393 6575.4441 3.9731673e+09 0.13583741 0.041929173 0.59306302 43.254595 6577.5648 3.6580280e+09 0.13256725 0.039333209 0.50020841 43.110932 6579.6855 3.3742129e+09 0.12896063 0.036693628 0.41936749 42.977782 6581.8063 3.1428342e+09 0.12541578 0.035352458 0.33726341 42.845896 6583.9270 2.9455827e+09 0.12175886 0.034552456 0.25166712 42.717501 6586.0477 2.7608830e+09 0.11810371 0.033170679 0.16684462 42.588333 6588.1685 2.5915078e+09 0.11510088 0.033323665 0.086003396 42.455183 6590.2892 2.4191212e+09 0.11184418 0.030524073 0.0043557355 42.321037 6592.4100 2.2393212e+09 0.10900879 0.027675333 -0.089961388 42.171239 6594.5307 2.0619026e+09 0.10668668 0.025881198 -0.18080956 42.026951 6596.6514 1.8996578e+09 0.10422400 0.025724312 -0.26165051 41.898556 6598.7722 1.7727632e+09 0.10238131 0.025038506 -0.34249150 41.769427 6600.8929 1.6655323e+09 0.10221317 0.026825520 -0.42333272 41.636275 6603.0136 1.5633848e+09 0.10122807 0.026655198 -0.50392839 41.503369 6605.1344 1.4720437e+09 0.10038468 0.026777775 -0.58001400 41.374976 6607.2551 1.3807757e+09 0.098883818 0.025203241 -0.65609960 41.246584 6609.3759 1.3000933e+09 0.095776636 0.023817577 -0.73669675 41.113676 6611.4966 1.2265813e+09 0.092978160 0.024641780 -0.81753767 40.980525 6613.6173 1.1425596e+09 0.091937963 0.023800088 -0.90506987 40.833318 6615.7381 1.0609714e+09 0.090434708 0.023274240 -0.99327619 40.684470 6617.8588 9.8416778e+08 0.089627311 0.023723981 -1.0693618 40.556075 6619.9795 9.1579807e+08 0.088883725 0.024762260 -1.1454473 40.427681 6622.1003 8.6227396e+08 0.087440056 0.024731304 -1.2215332 40.294816 6624.2210 8.0995645e+08 0.085456456 0.024980614 -1.2976190 40.161666 6626.3417 7.6104164e+08 0.083914148 0.026155490 -1.3737047 40.032498 6628.4625 7.1832205e+08 0.082204494 0.025890867 -1.4497903 39.904103 6630.5832 6.7243833e+08 0.080488471 0.025929739 -1.5223837 39.775708 6632.7040 6.3282457e+08 0.078811039 0.026116755 -1.5937139 39.647314 6634.8247 5.9529248e+08 0.077204206 0.026387000 -1.6680471 39.515916 6636.9454 5.6502362e+08 0.075627680 0.026182604 -1.7441326 39.382767 6639.0662 5.3876629e+08 0.074706632 0.025604426 -1.8177048 39.252131 6641.1869 5.1099958e+08 0.075643285 0.025148935 -1.8890356 39.123735 6643.3076 4.8236368e+08 0.075428030 0.025239068 -1.9654281 38.983867 6645.4284 4.4828442e+08 0.074821458 0.025652362 -2.0486491 38.828522 6647.5491 4.1756363e+08 0.074095899 0.026726890 -2.1244588 38.689974 6649.6698 3.8784569e+08 0.073522689 0.026710334 -2.1957891 38.561580 6651.7906 3.6299086e+08 0.073293864 0.027090035 -2.2671194 38.433185 6653.9113 3.4482500e+08 0.072827940 0.027990950 -2.3384497 38.304790 6656.0321 3.2185583e+08 0.071301754 0.028051556 -2.4077946 38.176396 6658.1528 3.0277169e+08 0.070031641 0.030332065 -2.4743694 38.048001 6660.2735 2.8226791e+08 0.068768085 0.031874625 -2.5424405 37.918110 6662.3943 2.6519443e+08 0.067465110 0.032823063 -2.6137712 37.784960 6664.5150 2.4983174e+08 0.066521787 0.030321704 -2.6840951 37.652817 6666.6357 2.3530802e+08 0.066366003 0.027032477 -2.7506699 37.524422 6668.7565 2.1928758e+08 0.065262397 0.028140204 -2.8172448 37.396028 6670.8772 2.0154175e+08 0.065250587 0.026922232 -2.8838197 37.267633 6672.9980 1.8919272e+08 0.064850420 0.027458030 -2.9503947 37.139200 6675.1187 1.7731415e+08 0.063184256 0.030025690 -3.0169695 37.006061 6677.2394 1.6906546e+08 0.061111313 0.032017849 -3.0835443 36.872912 6679.3602 1.6271146e+08 0.060632961 0.029970149 -3.1601411 36.724728 6681.4809 1.5383637e+08 0.061454137 0.030026297 -3.2366976 36.577083 6683.6016 1.4791775e+08 0.061773757 0.032070285 -3.3032725 36.448689 6685.7224 1.4102093e+08 0.061392170 0.033467841 -3.3698473 36.320294 6687.8431 1.3379373e+08 0.059279398 0.033872690 -3.4364227 36.191898 6689.9638 1.2839690e+08 0.057431604 0.033148408 -3.5029981 36.063503 6692.0846 1.2257734e+08 0.056541663 0.032667108 -3.5653179 35.935108 6694.2053 1.2021300e+08 0.055861289 0.030973260 -3.6271375 35.806714 6696.3261 1.1473865e+08 0.055837684 0.029811255 -3.6927229 35.674554 6698.4468 1.1360827e+08 0.055063105 0.030831092 -3.7592977 35.541404 6700.5675 1.0712866e+08 0.053527709 0.031088671 -3.8225960 35.411531 6702.6883 1.0455026e+08 0.052935247 0.033426314 -3.8844156 35.283137 6704.8090 1.0158623e+08 0.053376306 0.036574817 -3.9462351 35.154742 6706.9297 96434813. 0.053221472 0.040064544 -4.0080546 35.026347 6709.0505 97185400. 0.052912145 0.041100437 -4.0748475 34.887623 6711.1712 92528637. 0.051352595 0.040887027 -4.1469586 34.737854 6713.2920 92615561. 0.049601213 0.044742546 -4.2120666 34.602630 6715.4127 87651117. 0.047859500 0.047800673 -4.2738862 34.474235 6717.5334 82685778. 0.045930388 0.049841274 -4.3357057 34.345841 6719.6542 81063624. 0.044480425 0.050748339 -4.3975251 34.217448 6721.7749 76627602. 0.044693989 0.050537379 -4.4570873 34.089055 6723.8956 75586561. 0.042879573 0.049868454 -4.5141517 33.960660 6726.0164 69401911. 0.038708501 0.040951515 -4.5729839 33.830497 6728.1371 63006308. 0.037449169 0.039822426 -4.6348033 33.697346 6730.2578 58255533. 0.035128475 0.040732438 -4.6979020 33.559719 6732.3786 53184898. 0.031839601 0.043809905 -4.7644790 33.409923 6734.4993 50854506. 0.027592129 0.049323557 -4.8288369 33.270110 6736.6201 49043409. 0.0073203761 0.052699158 -4.8906567 33.141714 6738.7408 48474607. 0.025737785 0.061399487 -4.9507475 33.013319 6740.8615 49218697. 0.063482088 0.065522134 -5.0078119 32.884925