# # 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 = 56.511445 km # Date (UTC) = 2016-01-03T10:19:49.102 # Date (julian) = 2457390.93042943 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6496.5669 7.6798987e+10 0.028838385 0.031247958 101.39153 32.040484 6498.6947 7.0524457e+10 0.036868860 0.031889606 101.44755 31.935441 6500.8226 6.4703890e+10 0.045197061 0.032531253 101.50600 31.822722 6502.9504 5.9230141e+10 0.053868722 0.033172900 101.56445 31.710002 6505.0783 5.4218333e+10 0.062967677 0.033814548 101.61813 31.606474 6507.2061 5.0073832e+10 0.072687154 0.034456195 101.67008 31.506280 6509.3340 4.6517705e+10 0.083037317 0.035097842 101.72245 31.405434 6511.4618 4.2820542e+10 0.093780968 0.035739490 101.78507 31.288539 6513.5897 3.8990325e+10 0.10487143 0.036381137 101.84769 31.171645 6515.7175 3.5370244e+10 0.11640762 0.037022785 101.90345 31.065493 6517.8454 3.2329016e+10 0.12856623 0.037664432 101.95541 30.965286 6519.9732 2.9836709e+10 0.14134098 0.038306079 102.00737 30.865080 6522.1011 2.7640085e+10 0.15427067 0.038943716 102.05932 30.764886 6524.2289 2.5579763e+10 0.16177361 0.039508283 102.11127 30.664692 6526.3568 2.3566500e+10 0.16813544 0.040042111 102.16488 30.561310 6528.4846 2.1513550e+10 0.17401040 0.041826927 102.22332 30.448590 6530.6125 1.9524849e+10 0.17838874 0.044686132 102.28177 30.335870 6532.7403 1.7706634e+10 0.18191821 0.047302644 102.33145 30.230725 6534.8682 1.6205824e+10 0.18277199 0.048187416 102.37969 30.126821 6536.9960 1.4966964e+10 0.18179695 0.048681657 102.42961 30.021467 6539.1239 1.3748369e+10 0.17991945 0.049793557 102.48806 29.908747 6541.2517 1.2556883e+10 0.17776729 0.051244901 102.54650 29.796027 6543.3796 1.1486320e+10 0.17541833 0.051481510 102.59711 29.692931 6545.5074 1.0592637e+10 0.17315024 0.052460113 102.64536 29.592724 6547.6353 9.8850327e+09 0.17116087 0.053528941 102.69388 29.492518 6549.7631 9.2395959e+09 0.16913261 0.054743946 102.74583 29.392324 6551.8910 8.6281373e+09 0.16704253 0.055548490 102.79779 29.292130 6554.0188 8.0419469e+09 0.16426797 0.054832775 102.85062 29.187178 6556.1467 7.4428585e+09 0.16184919 0.053991565 102.90489 29.074458 6558.2745 6.8848196e+09 0.15961930 0.053005393 102.95916 28.961739 6560.4024 6.4008298e+09 0.15668739 0.051911536 103.00750 28.861352 6562.5302 6.0157502e+09 0.15358229 0.050375396 103.05574 28.761159 6564.6581 5.6707865e+09 0.15045529 0.048473368 103.10572 28.657336 6566.7859 5.3057314e+09 0.14773868 0.046738302 103.16000 28.544616 6568.9138 4.9294364e+09 0.14510019 0.044931708 103.21427 28.431896 6571.0416 4.5809205e+09 0.14294545 0.044491913 103.26316 28.330369 6573.1695 4.2904097e+09 0.14039307 0.043521502 103.31140 28.230162 6575.2973 4.0390153e+09 0.13737856 0.042076423 103.35965 28.129957 6577.4251 3.8252683e+09 0.13393587 0.039552567 103.40789 28.029764 6579.5530 3.6278581e+09 0.13006068 0.036766490 103.45614 27.929570 6581.6808 3.4360771e+09 0.12672389 0.035390439 103.50742 27.823047 6583.8087 3.2341357e+09 0.12393585 0.034612340 103.56170 27.710329 6585.9365 3.0252951e+09 0.12172032 0.033222026 103.61530 27.598987 6588.0644 2.8452450e+09 0.12040748 0.033358426 103.66354 27.498793 6590.1922 2.7005420e+09 0.11830734 0.030704462 103.71178 27.398599 6592.3201 2.5707984e+09 0.11592047 0.027762617 103.76080 27.293205 6594.4479 2.4218071e+09 0.11367337 0.025926624 103.81089 27.180485 6596.5758 2.2646815e+09 0.11123014 0.025724656 103.86096 27.068013 6598.7036 2.1315772e+09 0.10943949 0.025071221 103.90920 26.967806 6600.8315 2.0302099e+09 0.10920481 0.026699269 103.95745 26.867599 6602.9593 1.9414884e+09 0.10817030 0.026697970 104.00630 26.763320 6605.0872 1.8424497e+09 0.10733525 0.026738190 104.05640 26.650601 6607.2150 1.7367018e+09 0.10594446 0.025282371 104.10650 26.537883 6609.3429 1.6450907e+09 0.10288329 0.023807786 104.15487 26.436813 6611.4707 1.5728906e+09 0.10004543 0.024658263 104.20311 26.336619 6613.5986 1.5015082e+09 0.098895785 0.023793214 104.25179 26.233478 6615.7264 1.4263729e+09 0.097298204 0.023273882 104.30188 26.120758 6617.8543 1.3499612e+09 0.096407629 0.023722486 104.35198 26.008038 6619.9821 1.2732331e+09 0.095634311 0.024762888 104.39741 25.908957 6622.1100 1.2197749e+09 0.094089093 0.024728718 104.44194 25.812474 6624.2378 1.1696706e+09 0.091976285 0.024989622 104.48728 25.713634 6626.3657 1.1107076e+09 0.090331113 0.026124987 104.53737 25.600914 6628.4935 1.0540135e+09 0.088679703 0.025903475 104.58747 25.488194 6630.6214 9.9293864e+08 0.087174092 0.025929833 104.63340 25.384858 6632.7492 9.4479325e+08 0.085940540 0.026122184 104.67793 25.284652 6634.8771 9.0432015e+08 0.084831709 0.026390821 104.72278 25.183983 6637.0049 8.5801068e+08 0.083689393 0.026158996 104.77287 25.075438 6639.1328 8.1512467e+08 0.083057809 0.025580616 104.82297 24.966894 6641.2606 7.6816059e+08 0.084018184 0.025149185 104.86939 24.863861 6643.3885 7.3112837e+08 0.083661579 0.025251274 104.91392 24.763667 6645.5163 6.9882965e+08 0.082882951 0.025693566 104.95846 24.663473 6647.6442 6.6797600e+08 0.082030905 0.026776943 105.00836 24.551187 6649.7720 6.3866525e+08 0.081356108 0.026569484 105.05846 24.438468 6651.8999 6.1376659e+08 0.080959295 0.027173792 105.10327 24.335003 6654.0277 5.9062195e+08 0.080387593 0.028024413 105.14409 24.238521 6656.1556 5.7062491e+08 0.078685081 0.028159967 105.18491 24.142038 6658.2834 5.4864124e+08 0.077321049 0.030563741 105.23385 24.031345 6660.4113 5.1944599e+08 0.076082485 0.031999827 105.28394 23.918626 6662.5391 4.9612780e+08 0.074846759 0.032741790 105.32959 23.813692 6664.6670 4.7445135e+08 0.074038164 0.029765656 105.37042 23.717196 6666.7948 4.5642875e+08 0.073827042 0.027063477 105.41124 23.620700 6668.9227 4.4288537e+08 0.072595781 0.028287274 105.45935 23.511461 6671.0505 4.2401105e+08 0.072722871 0.026866068 105.50945 23.398741 6673.1784 4.0502733e+08 0.072333444 0.027725986 105.55792 23.287650 6675.3062 3.8460119e+08 0.070679662 0.030384884 105.60384 23.179105 6677.4341 3.6649965e+08 0.069052820 0.031741141 105.64976 23.070557 6679.5619 3.5154428e+08 0.069038686 0.029803425 105.69569 22.957863 6681.6898 3.3333338e+08 0.070216951 0.030186539 105.74161 22.845143 6683.8176 3.1594711e+08 0.070885195 0.032386811 105.78670 22.742157 6685.9455 3.0265560e+08 0.070717678 0.033703486 105.83123 22.645675 6688.0733 2.9412764e+08 0.068554423 0.033802115 105.87576 22.549192 6690.2012 2.8555709e+08 0.066970720 0.033092810 105.92155 22.438020 6692.3290 2.7494677e+08 0.066264074 0.032383261 105.96747 22.325300 6694.4569 2.5988252e+08 0.065856092 0.030620704 106.01339 22.214699 6696.5847 2.4894105e+08 0.065860057 0.029918723 106.05932 22.106138 6698.7126 2.3707328e+08 0.065088547 0.031195895 106.10525 21.997578 6700.8404 2.2606970e+08 0.063668754 0.031291077 106.15118 21.889034 6702.9683 2.1455625e+08 0.063621673 0.033649893 106.19710 21.780489 6705.0961 2.0170197e+08 0.064199266 0.036839476 106.23935 21.677949 6707.2240 1.9737483e+08 0.064021022 0.040154744 106.28017 21.577756 6709.3518 1.9160803e+08 0.063522231 0.040908774 106.32102 21.477359 6711.4797 1.8594174e+08 0.061888971 0.041237956 106.36276 21.368814 6713.6075 1.7844550e+08 0.060113480 0.045883861 106.40451 21.260268 6715.7354 1.6943362e+08 0.058675430 0.048130694 106.44888 21.151723 6717.8632 1.6370066e+08 0.056865735 0.049820875 106.49481 21.043178 6719.9911 1.5818686e+08 0.055850463 0.050428261 106.54073 20.934634 6722.1189 1.4942927e+08 0.056171463 0.050458202 106.58665 20.826090 6724.2468 1.4130712e+08 0.053936697 0.047866073 106.63258 20.717546 6726.3746 1.3606956e+08 0.050862536 0.040954746 106.67850 20.605501 6728.5025 1.3072091e+08 0.050586028 0.040340246 106.72442 20.492781 6730.6303 1.3062509e+08 0.048996201 0.041243130 106.76850 20.381911 6732.7582 1.2337279e+08 0.047990073 0.043879783 106.81024 20.273365 6734.8860 1.1648934e+08 0.048147947 0.049300291 106.85219 20.164819 6737.0139 1.1322599e+08 0.049818783 0.054179699 106.89812 20.056258 6739.1417 1.0832369e+08 0.050485291 0.062999970 106.94405 19.947697 6741.2696 1.0976556e+08 0.048758744 0.066527473 106.98725 19.839146 6743.3974 1.0855639e+08 0.044525598 0.073728308 107.02900 19.730602 6745.5253 1.0554430e+08 0.041998345 0.078787698 107.07182 19.622057 6747.6531 1.0368236e+08 0.037368410 0.067136323 107.11774 19.513512 6749.7810 1.0000383e+08 0.035081632 0.072064108 107.16367 19.404967 6751.9088 98076567. 0.031618065 0.074095917 107.20599 19.296422 6754.0366 93617093. 0.030005680 0.076154534 107.24774 19.187878 6756.1645 89660027. 0.027050064 0.074590190 107.28949 19.079333 6758.2923 89718729. 0.026188144 0.074323533 107.33124 18.970788 6760.4202 88652904. 0.026129709 0.076862569 107.37328 18.862243 6762.5480 89001198. 0.030015251 0.077166800 107.41921 18.753699 6764.6759 83821944. 0.032074823 0.079515666 107.46513 18.645154 6766.8037 80890935. 0.031784806 0.081531836 107.51226 18.526123 6768.9316 82524644. 0.026712360 0.084208126 107.55998 18.402069 6771.0594 81686193. 0.022230866 0.089449321 107.60423 18.287015 6773.1873 83935380. 0.017973380 0.094610291 107.64597 18.178470 6775.3151 75645880. 0.013175162 0.099771261 107.68772 18.069925 6777.4430 74441598. 0.0087453176 0.10493223 107.72947 17.961379 6779.5708 77257881. 0.0046369245 0.11009320 107.77122 17.852834 6781.6987 74360700. 4.3547678e-05 0.11525417 107.81296 17.747586 6783.8265 74435438. -0.0043407979 0.12041514 107.85471 17.643216 6785.9544 68507875. -0.0095778000 0.12557611 107.89881 17.531084 6788.0822 63278937. -0.015209590 0.13073708 107.94653 17.407030 6790.2101 60190240. -0.021192683 0.13589805 107.99246 17.287600 6792.3379 57052600. -0.028537658 0.14105902 108.03422 17.179039 6794.4658 52821802. -0.040308790 0.14621999 108.07597 17.070478 6796.5936 50707261. -0.086277582 0.15138096 108.12311 16.947920 6798.7215 44877263. -0.059860534 0.15654193 108.17082 16.823866 6800.8493 39902639. 0.026949806 0.16170291 108.21372 16.712338