# # 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 = 44.803635 km # Date (UTC) = 2016-01-24T08:22:02.436 # Date (julian) = 2457411.84863931 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6498.3056 8.6252214e+10 0.038000759 0.031772257 -0.15118832 57.261117 6500.4943 7.2261252e+10 0.046236797 0.032432263 -0.32634826 57.129432 6502.6830 6.3740719e+10 0.054992810 0.033092268 -0.48830590 57.006737 6504.8718 5.7129021e+10 0.064212964 0.033752273 -0.66697791 56.871379 6507.0605 5.1195425e+10 0.073806602 0.034412278 -0.85593461 56.728230 6509.2492 4.5369329e+10 0.083645479 0.035072283 -1.0448907 56.580086 6511.4379 4.0307366e+10 0.093918009 0.035732288 -1.2331194 56.431939 6513.6267 3.6094147e+10 0.10474437 0.036392293 -1.4163128 56.288819 6515.8154 3.2536292e+10 0.11610474 0.037052298 -1.5973479 56.143515 6518.0041 2.9607541e+10 0.12806225 0.037712303 -1.7748527 55.994639 6520.1928 2.7143461e+10 0.14060046 0.038372309 -1.9363034 55.862335 6522.3816 2.5144304e+10 0.15268723 0.039017171 -2.0884454 55.739640 6524.5703 2.3394958e+10 0.16040058 0.039629563 -2.2556883 55.601357 6526.7590 2.1550796e+10 0.16673672 0.040463841 -2.4331924 55.452484 6528.9478 1.9477960e+10 0.17143687 0.042194341 -2.6058358 55.303608 6531.1365 1.7483389e+10 0.17561427 0.045427336 -2.7750977 55.157417 6533.3252 1.5885971e+10 0.17949570 0.047657793 -2.9223319 55.034722 6535.5139 1.4566914e+10 0.18011525 0.048001351 -3.0707888 54.910325 6537.7027 1.3482375e+10 0.18029362 0.049016503 -3.2368410 54.761452 6539.8914 1.2309254e+10 0.17942465 0.050722642 -3.4028934 54.612578 6542.0801 1.1142977e+10 0.17645282 0.051032658 -3.5689464 54.463704 6544.2689 1.0177806e+10 0.17381699 0.051862447 -3.7186176 54.326999 6546.4576 9.3519259e+09 0.17137528 0.052841042 -3.8560361 54.199395 6548.6463 8.6324049e+09 0.16917162 0.053860656 -4.0056824 54.060438 6550.8350 7.9362795e+09 0.16709467 0.055194446 -4.1659765 53.911594 6553.0238 7.3183909e+09 0.16536882 0.055323121 -4.3082510 53.779481 6555.2125 6.8069437e+09 0.16303316 0.054674820 -4.4456702 53.651877 6557.4012 6.3436032e+09 0.16043327 0.053614621 -4.5959784 53.508317 6559.5899 5.8738410e+09 0.15751495 0.052320593 -4.7504632 53.359555 6561.7787 5.4353434e+09 0.15441381 0.050988966 -4.8830072 53.231919 6563.9674 5.0414864e+09 0.15098760 0.048809302 -5.0155185 53.104314 6566.1561 4.7007694e+09 0.14828346 0.047094560 -5.1638396 52.956160 6568.3449 4.3677327e+09 0.14612448 0.045454653 -5.3080398 52.811961 6570.5336 4.0918763e+09 0.14386424 0.044696479 -5.4356427 52.684359 6572.7223 3.8549310e+09 0.14123131 0.043816504 -5.5671206 52.552881 6574.9110 3.6149255e+09 0.13823800 0.042417433 -5.7159952 52.404005 6577.0998 3.3782451e+09 0.13486573 0.040063654 -5.8534627 52.262260 6579.2885 3.1441957e+09 0.13104645 0.036911896 -5.9761583 52.129749 6581.4772 2.9647984e+09 0.12753095 0.035452098 -6.0988537 51.999192 6583.6660 2.8243558e+09 0.12394671 0.034684589 -6.2215489 51.871590 6585.8547 2.6669693e+09 0.12047997 0.033287473 -6.3516197 51.736316 6588.0434 2.4976462e+09 0.11799955 0.033365433 -6.4947687 51.587440 6590.2321 2.3302121e+09 0.11531603 0.030630251 -6.6223413 51.451630 6592.4209 2.1748155e+09 0.11282868 0.027664735 -6.7401286 51.324027 6594.6096 2.0369653e+09 0.11048349 0.025837885 -6.8692218 51.180876 6596.7983 1.9015570e+09 0.10792111 0.025723644 -7.0066170 51.026306 6598.9871 1.7724748e+09 0.10604781 0.024935912 -7.1236692 50.894114 6601.1758 1.6573989e+09 0.10611182 0.027128472 -7.2365492 50.766511 6603.3645 1.5723585e+09 0.10485045 0.026447486 -7.3533169 50.638908 6605.5532 1.4909110e+09 0.10412944 0.027129164 -7.4711042 50.511304 6607.7420 1.4031547e+09 0.10219490 0.024241896 -7.5993885 50.363326 6609.9307 1.3129448e+09 0.099210311 0.023982391 -7.7308688 50.208971 6612.1194 1.2225698e+09 0.096863661 0.024231526 -7.8388616 50.081345 6614.3081 1.1480515e+09 0.095779925 0.023728191 -7.9468336 49.953743 6616.4969 1.0881807e+09 0.094132676 0.023360284 -8.0595695 49.821376 6618.6856 1.0269616e+09 0.093296581 0.024288508 -8.1724493 49.688864 6620.8743 9.7165976e+08 0.092287593 0.025048950 -8.2807494 49.560932 6623.0631 9.1673294e+08 0.090595291 0.024515188 -8.3887212 49.433327 6625.2518 8.5826161e+08 0.089001974 0.025698062 -8.5076839 49.286676 6627.4405 8.0289592e+08 0.086845663 0.025486974 -8.6260987 49.140242 6629.6292 7.4309570e+08 0.085525942 0.025995336 -8.7340706 49.007731 6631.8180 6.9416216e+08 0.083529911 0.026013855 -8.8414951 48.875767 6634.0067 6.5882511e+08 0.081737412 0.026327331 -8.9445591 48.748165 6636.1954 6.2450816e+08 0.080165765 0.026473861 -9.0488938 48.618566 6638.3842 5.8992666e+08 0.079244355 0.025654906 -9.1691385 48.463966 6640.5729 5.4738158e+08 0.079850561 0.025200559 -9.2837563 48.318207 6642.7616 5.0831951e+08 0.080019010 0.025182863 -9.3868210 48.190602 6644.9503 4.7255179e+08 0.079394275 0.025446317 -9.4884623 48.061575 6647.1391 4.4566906e+08 0.078430372 0.026510999 -9.5866184 47.929066 6649.3278 4.2403303e+08 0.077500324 0.027181839 -9.6847744 47.796556 6651.5165 4.0046440e+08 0.077241763 0.026880005 -9.7829304 47.664045 6653.7053 3.8148540e+08 0.076735850 0.027885737 -9.8846018 47.528018 6655.8940 3.4963126e+08 0.075278201 0.027979610 -9.9991210 47.379143 6658.0827 3.1983306e+08 0.074031078 0.030207760 -10.105968 47.237943 6660.2714 3.0090176e+08 0.072620138 0.031872718 -10.204107 47.105455 6662.4602 2.8216491e+08 0.071263477 0.032786093 -10.300141 46.975069 6664.6489 2.7235370e+08 0.070238202 0.029831827 -10.393390 46.847466 6666.8376 2.5982809e+08 0.069906337 0.027071815 -10.486639 46.717935 6669.0263 2.4948083e+08 0.068514248 0.028328644 -10.579887 46.585424 6671.2151 2.4244807e+08 0.068440056 0.026868413 -10.678659 46.447098 6673.4038 2.2762970e+08 0.067812089 0.028063132 -10.787452 46.298225 6675.5925 2.1311595e+08 0.065737263 0.030933269 -10.886780 46.159315 6677.7813 1.9993457e+08 0.064186207 0.031247579 -10.980028 46.026804 6679.9700 1.9309455e+08 0.064076957 0.029466219 -11.073277 45.897096 6682.1587 1.8853346e+08 0.064570909 0.030545806 -11.166525 45.769492 6684.3474 1.8490267e+08 0.064517234 0.032671723 -11.257154 45.639268 6686.5362 1.8261073e+08 0.063338556 0.034073036 -11.345495 45.506757 6688.7249 1.7842321e+08 0.060563177 0.033952521 -11.441143 45.363284 6690.9136 1.7146666e+08 0.059440608 0.033011161 -11.544210 45.208683 6693.1024 1.6383294e+08 0.058638640 0.031568975 -11.636235 45.074326 6695.2911 1.5292124e+08 0.058145221 0.029806006 -11.724576 44.946723 6697.4798 1.4664163e+08 0.057540872 0.030151986 -11.809421 44.815625 6699.6685 1.4005781e+08 0.056127165 0.030973564 -11.892854 44.683114 6701.8573 1.3582078e+08 0.054415193 0.032667297 -11.979598 44.553915 6704.0460 1.3294953e+08 0.054771698 0.036200138 -12.067938 44.426313 6706.2347 1.2206287e+08 0.054748760 0.038854917 -12.162013 44.281511 6708.4234 1.1246608e+08 0.054332084 0.040504699 -12.259354 44.126910 6710.6122 1.0243484e+08 0.052872000 0.040616321 -12.344308 43.991982 6712.8009 92775082. 0.050847010 0.043316971 -12.427741 43.859470 6714.9896 88305875. 0.048971933 0.047377809 -12.511173 43.731147 6717.1784 85614440. 0.047078653 0.049863236 -12.594606 43.603545 6719.3671 84065426. 0.045331489 0.051021078 -12.684712 43.453925 6721.5558 83104656. 0.045898588 0.050471369 -12.775762 43.301189 6723.7445 79669299. 0.044356608 0.049784189 -12.859195 43.173585 6725.9333 73324111. 0.040439568 0.040993049 -12.942472 43.045826 6728.1220 72170691. 0.039890168 0.039801014 -13.020998 42.913315 6730.3107 69238704. 0.038539254 0.040804948 -13.099523 42.780804 6732.4995 71221810. 0.037264996 0.043832157 -13.178035 42.648315 6734.6882 70076180. 0.036973343 0.049312193 -13.256547 42.515826 6736.8769 68140678. 0.038515563 0.053670222 -13.347585 42.367673 6739.0656 63921635. 0.038635932 0.062906882 -13.436457 42.222229 6741.2544 60745657. 0.036018494 0.066484162 -13.514982 42.089718 6743.4431 55643257. 0.028320175 0.074036550 -13.595758 41.954392 6745.6318 49618793. 0.0039943275 0.078832500 -13.687373 41.805519 6747.8206 50519131. 0.017473525 0.067078677 -13.771329 41.663609 6750.0093 52041842. 0.050855945 0.072019977 -13.844946 41.531098