# # 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 = 38.981486 km # Date (UTC) = 2010-12-15T09:00:14.350 # Date (julian) = 2455545.87516609 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6494.8342 2.7333156e+11 0.030988878 0.030725466 -21.133532 45.181897 6497.0010 2.3238881e+11 0.038378507 0.031378880 -21.216668 45.087424 6499.1679 1.9877289e+11 0.045670855 0.032032293 -21.299804 44.992951 6501.3348 1.7346673e+11 0.053017394 0.032685707 -21.382941 44.895616 6503.5016 1.5002256e+11 0.060505859 0.033339120 -21.466077 44.797363 6505.6685 1.2934761e+11 0.068253183 0.033992534 -21.550366 44.698221 6507.8354 1.1109402e+11 0.076346389 0.034645947 -21.643895 44.591937 6510.0022 9.4649303e+10 0.084776339 0.035299361 -21.737425 44.485653 6512.1691 8.1304077e+10 0.093802494 0.035952774 -21.820211 44.385453 6514.3360 7.1103723e+10 0.10368619 0.036606188 -21.899578 44.287189 6516.5029 6.2920496e+10 0.11449303 0.037259601 -21.979370 44.189352 6518.6697 5.6313752e+10 0.12630529 0.037913014 -22.062507 44.094879 6520.8366 5.0761824e+10 0.13904112 0.038566428 -22.145644 44.000406 6523.0035 4.5888321e+10 0.14981367 0.039179970 -22.227018 43.904169 6525.1703 4.1823329e+10 0.15832074 0.039762776 -22.306375 43.805917 6527.3372 3.7982848e+10 0.16544749 0.040961278 -22.385732 43.707664 6529.5041 3.4271863e+10 0.17140278 0.043038714 -22.473227 43.602824 6531.6709 3.0779841e+10 0.17641140 0.046205230 -22.562506 43.496540 6533.8378 2.7560950e+10 0.17901771 0.047875627 -22.645377 43.394009 6536.0047 2.4931938e+10 0.17847451 0.047794680 -22.720965 43.295745 6538.1715 2.2724858e+10 0.17887011 0.049240211 -22.796553 43.197481 6540.3384 2.0800697e+10 0.17757658 0.051013974 -22.872133 43.102333 6542.5053 1.9083077e+10 0.17500352 0.051194069 -22.947712 43.007860 6544.6721 1.7564375e+10 0.17305292 0.052189604 -23.023955 42.912722 6546.8390 1.6274446e+10 0.17092798 0.053154898 -23.103312 42.814470 6549.0059 1.5153296e+10 0.16847534 0.053972273 -23.182669 42.716217 6551.1727 1.4063741e+10 0.16676179 0.055296389 -23.262778 42.613711 6553.3396 1.2926313e+10 0.16509667 0.055164346 -23.343554 42.507427 6555.5065 1.1799254e+10 0.16293461 0.054427795 -23.423408 42.402568 6557.6734 1.0772719e+10 0.16076818 0.053444046 -23.498987 42.304317 6559.8402 9.9050621e+09 0.15807684 0.052292343 -23.574565 42.206065 6562.0071 9.1886357e+09 0.15491105 0.050873155 -23.650149 42.109814 6564.1740 8.5515025e+09 0.15137745 0.048692759 -23.725737 42.015328 6566.3408 7.9776722e+09 0.14849346 0.046990078 -23.801325 41.920843 6568.5077 7.3859267e+09 0.14592428 0.045304967 -23.881506 41.812150 6570.6746 6.7919546e+09 0.14348792 0.044638081 -23.962282 41.701616 6572.8414 6.2395862e+09 0.14072225 0.043748288 -24.038273 41.599643 6575.0083 5.7536366e+09 0.13747263 0.042366377 -24.110073 41.505169 6577.1752 5.3584749e+09 0.13355703 0.039945220 -24.181872 41.410696 6579.3420 5.0076158e+09 0.12907522 0.036882463 -24.253671 41.312872 6581.5089 4.6827183e+09 0.12528388 0.035442505 -24.325470 41.214619 6583.6758 4.3892301e+09 0.12212399 0.034679618 -24.396363 41.117272 6585.8426 4.1265539e+09 0.11946845 0.033297097 -24.464392 41.022787 6588.0095 3.8947416e+09 0.11781109 0.033376754 -24.532422 40.928301 6590.1764 3.6625466e+09 0.11552707 0.030733969 -24.608031 40.826800 6592.3433 3.4136703e+09 0.11304467 0.027740125 -24.688807 40.720516 6594.5101 3.1625536e+09 0.11067183 0.025892493 -24.766491 40.616179 6596.6770 2.9312666e+09 0.10800900 0.025724196 -24.834512 40.517928 6598.8439 2.7370812e+09 0.10597162 0.025004279 -24.902532 40.419677 6601.0107 2.5654676e+09 0.10570453 0.027050740 -24.970553 40.323678 6603.1776 2.4173197e+09 0.10436851 0.026558139 -25.038574 40.229205 6605.3445 2.2806633e+09 0.10335214 0.026954019 -25.106594 40.134732 6607.5113 2.1359797e+09 0.10140396 0.024697310 -25.182693 40.025000 6609.6782 1.9803848e+09 0.098211022 0.023907388 -25.259218 39.914464 6611.8451 1.8259144e+09 0.095523469 0.024419553 -25.330664 39.813521 6614.0119 1.6956381e+09 0.094271575 0.023932269 -25.398693 39.719036 6616.1788 1.5902814e+09 0.092414277 0.023310362 -25.466722 39.624551 6618.3457 1.5022429e+09 0.091363317 0.024031820 -25.534743 39.526481 6620.5125 1.4230013e+09 0.090132385 0.024932364 -25.602764 39.428230 6622.6794 1.3465000e+09 0.088271626 0.024577156 -25.672084 39.327524 6624.8463 1.2631421e+09 0.086337036 0.025315318 -25.744357 39.221240 6627.0131 1.1765978e+09 0.083868856 0.025321889 -25.816630 39.114956 6629.1800 1.0978078e+09 0.082485442 0.026076558 -25.881246 39.016329 6631.3469 1.0308540e+09 0.080650506 0.025966002 -25.945488 38.918076 6633.5138 9.7399536e+08 0.079384189 0.026241949 -26.012196 38.817357 6635.6806 9.1594136e+08 0.078232536 0.026501857 -26.084469 38.711073 6637.8475 8.5287481e+08 0.077543425 0.025746337 -26.156742 38.604789 6640.0144 7.9531255e+08 0.077774496 0.025268895 -26.221354 38.509771 6642.1812 7.4692345e+08 0.078151464 0.025159112 -26.285605 38.415285 6644.3481 7.0594295e+08 0.077410218 0.025381228 -26.349853 38.319636 6646.5150 6.7365752e+08 0.076561038 0.026186709 -26.414094 38.221385 6648.6818 6.4254510e+08 0.075595169 0.027420705 -26.478336 38.123133 6650.8487 6.1005402e+08 0.075295273 0.026449529 -26.545083 38.019559 6653.0156 5.7358778e+08 0.075125245 0.027533610 -26.613104 37.913275 6655.1824 5.3533210e+08 0.074023967 0.027685600 -26.679952 37.810659 6657.3493 4.9936609e+08 0.072410175 0.029306295 -26.744193 37.716186 6659.5162 4.7384957e+08 0.071028270 0.031726924 -26.808435 37.621713 6661.6830 4.4924347e+08 0.069699096 0.032882838 -26.875188 37.516570 6663.8499 4.2194986e+08 0.068442077 0.032247681 -26.943210 37.406035 6666.0168 3.9751745e+08 0.068522076 0.026911865 -27.008875 37.300510 6668.1836 3.7286252e+08 0.067771824 0.027633291 -27.069345 37.206024 6670.3505 3.5428410e+08 0.067321746 0.027166244 -27.129816 37.111539 6672.5174 3.3420807e+08 0.067000989 0.027179485 -27.195317 37.006360 6674.6843 3.1506997e+08 0.065714630 0.029532004 -27.263339 36.895824 6676.8511 2.9942917e+08 0.063417489 0.032262267 -27.328987 36.790332 6679.0180 2.8670756e+08 0.062677985 0.030252904 -27.389449 36.695859 6681.1849 2.7526682e+08 0.063792519 0.029799180 -27.449912 36.601386 6683.3517 2.6247317e+08 0.064388120 0.031704042 -27.512584 36.499026 6685.5186 2.4698314e+08 0.064162890 0.033252603 -27.576355 36.392743 6687.6855 2.3180615e+08 0.062120632 0.033960610 -27.641467 36.286459 6689.8523 2.1491550e+08 0.060042683 0.033248787 -27.709489 36.180174 6692.0192 2.0085340e+08 0.059010704 0.032743031 -27.777511 36.073890 6694.1861 1.9174501e+08 0.058103947 0.031000239 -27.834610 35.975345 6696.3529 1.8150401e+08 0.057871881 0.029822424 -27.891293 35.877093 6698.5198 1.7341148e+08 0.056778127 0.030931313 -27.951576 35.776290 6700.6867 1.6174641e+08 0.054946781 0.031177045 -28.019608 35.669990 6702.8535 1.4989261e+08 0.054231529 0.033558289 -28.087639 35.563690 6705.0204 1.4037615e+08 0.054328358 0.036704896 -28.151557 35.457406 6707.1873 1.3276865e+08 0.053849337 0.040159998 -28.215327 35.351122 6709.3542 1.2606426e+08 0.053027921 0.040907287 -28.274753 35.252079 6711.5210 1.2042488e+08 0.051060940 0.041285009 -28.331437 35.157606 6713.6879 1.1476471e+08 0.048891532 0.046174563 -28.388121 35.063133 6715.8548 1.0953588e+08 0.047072451 0.048252808 -28.447546 34.953129 6718.0216 1.0622710e+08 0.045023655 0.049846092 -28.507066 34.842593 6720.1885 1.0094156e+08 0.043994704 0.050397926 -28.569198 34.734670 6722.3554 97139029. 0.043789360 0.050165885 -28.632968 34.628387 6724.5222 92681087. 0.040612506 0.045565710 -28.696738 34.522103 6726.6891 88877735. 0.037924407 0.040957582 -28.760508 34.415819 6728.8560 84613307. 0.037533070 0.040841285 -28.824278 34.309535 6731.0228 78594950. 0.035636030 0.041795471 -28.878158 34.214002 6733.1897 73407962. 0.034218173 0.044954262 -28.931063 34.119529 6735.3566 71608750. 0.034527720 0.049671960 -28.985717 34.021933 6737.5234 70328734. 0.035553410 0.055802998 -29.045245 33.915633 6739.6903 67361503. 0.034402996 0.063671359 -29.104773 33.809334 6741.8572 61884468. 0.028534991 0.068203412 -29.168171 33.703048 6744.0240 55541520. -0.00097404228 0.077812011 -29.231941 33.596765 6746.1909 52939019. 0.016956027 0.076767683 -29.293330 33.488100 6748.3578 52644337. 0.058754274 0.068899208 -29.352849 33.377566