# # 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 = 48.607350 km # Date (UTC) = 2011-11-27T09:38:18.850 # Date (julian) = 2455892.90160706 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.1310 1.7333554e+11 0.052294077 0.032624251 -25.220225 54.773262 6503.2539 1.4936577e+11 0.060344461 0.033264414 -25.350279 54.672364 6505.3768 1.2845317e+11 0.068489912 0.033904578 -25.479399 54.572399 6507.4998 1.0981669e+11 0.076734166 0.034544742 -25.615451 54.467068 6509.6227 9.4465574e+10 0.085193731 0.035184905 -25.763020 54.352823 6511.7456 8.0769636e+10 0.093764964 0.035825069 -25.905515 54.241360 6513.8685 6.9739338e+10 0.10264845 0.036465233 -26.034634 54.137232 6515.9915 6.1238640e+10 0.11204569 0.037105396 -26.163753 54.033103 6518.1144 5.5096683e+10 0.12219405 0.037745560 -26.289232 53.932615 6520.2373 5.0899541e+10 0.13324295 0.038385724 -26.414186 53.832650 6522.3603 4.6646550e+10 0.14364890 0.039011590 -26.547591 53.723673 6524.4832 4.2356731e+10 0.14961459 0.039598617 -26.690399 53.604666 6526.6061 3.8181111e+10 0.15441523 0.040303534 -26.825004 53.491203 6528.7291 3.4497832e+10 0.15868215 0.042020840 -26.945793 53.387074 6530.8520 3.1514201e+10 0.16259492 0.045021454 -27.066582 53.282945 6532.9749 2.8904645e+10 0.16709678 0.047498627 -27.187372 53.182865 6535.0978 2.6635562e+10 0.16950633 0.048181854 -27.308161 53.082902 6537.2208 2.4619691e+10 0.17097360 0.048789309 -27.426573 52.980561 6539.3437 2.2979148e+10 0.17174474 0.050059665 -27.543197 52.876432 6541.4666 2.1424208e+10 0.17108792 0.051175206 -27.662653 52.769775 6543.5896 1.9781706e+10 0.16954555 0.051536625 -27.795940 52.650768 6545.7125 1.8103541e+10 0.16756731 0.052461950 -27.928074 52.532792 6547.8354 1.6612998e+10 0.16625965 0.053605057 -28.044699 52.428663 6549.9583 1.5411828e+10 0.16502161 0.054942908 -28.161323 52.324534 6552.0813 1.4392883e+10 0.16349865 0.055566310 -28.275163 52.220406 6554.2042 1.3491504e+10 0.16148673 0.054836665 -28.387622 52.116277 6556.3271 1.2678479e+10 0.15975441 0.053965031 -28.500081 52.013262 6558.4501 1.1937076e+10 0.15806692 0.052855798 -28.612540 51.913298 6560.5730 1.1263181e+10 0.15590487 0.051757685 -28.724999 51.813334 6562.6959 1.0593206e+10 0.15390118 0.050217711 -28.837473 51.709747 6564.8188 9.9805697e+09 0.15194566 0.048400495 -28.949949 51.605602 6566.9418 9.4517622e+09 0.15017313 0.046650124 -29.060476 51.501465 6569.0647 8.9887285e+09 0.14833367 0.044856636 -29.168770 51.397337 6571.1876 8.5379633e+09 0.14706914 0.044452028 -29.278073 51.292238 6573.3106 8.0114363e+09 0.14540619 0.043408260 -29.401840 51.173231 6575.4335 7.4862735e+09 0.14342739 0.041939777 -29.525607 51.054224 6577.5564 6.9559305e+09 0.14118807 0.039346365 -29.630433 50.949567 6579.6794 6.5218923e+09 0.13856197 0.036697027 -29.734562 50.845438 6581.8023 6.1668036e+09 0.13598691 0.035353667 -29.838690 50.741310 6583.9252 5.8078827e+09 0.13330618 0.034553366 -29.942819 50.637181 6586.0481 5.5079571e+09 0.13067513 0.033170674 -30.046948 50.533052 6588.1711 5.2128742e+09 0.12880361 0.033322801 -30.151076 50.428923 6590.2940 4.9492933e+09 0.12652842 0.030515183 -30.255205 50.324795 6592.4169 4.7060612e+09 0.12436254 0.027668562 -30.359334 50.217493 6594.5399 4.4560861e+09 0.12230242 0.025876168 -30.463463 50.109200 6596.6628 4.2249841e+09 0.11993859 0.025724260 -30.566088 50.002410 6598.7857 4.0230139e+09 0.11817715 0.025032037 -30.666051 49.898281 6600.9086 3.8391452e+09 0.11812480 0.026857882 -30.766015 49.794152 6603.0316 3.6378389e+09 0.11725995 0.026644581 -30.879692 49.675739 6605.1545 3.4203422e+09 0.11664925 0.026794660 -30.993938 49.556732 6607.2774 3.1935290e+09 0.11539980 0.025159169 -31.092330 49.450512 6609.4004 2.9981522e+09 0.11251356 0.023824858 -31.188128 49.346383 6611.5233 2.8383064e+09 0.10986651 0.024624750 -31.285837 49.242254 6613.6462 2.6956733e+09 0.10879649 0.023810690 -31.385800 49.138126 6615.7692 2.5678841e+09 0.10715425 0.023275196 -31.485524 49.033996 6617.8921 2.4498168e+09 0.10618412 0.023735015 -31.581336 48.929852 6620.0150 2.3338375e+09 0.10524564 0.024772034 -31.677149 48.825708 6622.1379 2.2201409e+09 0.10366117 0.024721278 -31.770216 48.718836 6624.2609 2.1124783e+09 0.10151624 0.025001951 -31.861849 48.610541 6626.3838 2.0113676e+09 0.099704618 0.026101911 -31.954551 48.503314 6628.5067 1.9251137e+09 0.097729597 0.025908831 -32.050349 48.399185 6630.6297 1.8414531e+09 0.095606464 0.025929853 -32.146147 48.295056 6632.7526 1.7486698e+09 0.093715412 0.026122586 -32.249582 48.178201 6634.8755 1.6433921e+09 0.092074284 0.026390707 -32.354309 48.059195 6636.9984 1.5464714e+09 0.090559059 0.026162016 -32.449153 47.951416 6639.1214 1.4635153e+09 0.089740763 0.025584694 -32.540785 47.847287 6641.2443 1.3941219e+09 0.090508243 0.025149130 -32.632418 47.741685 6643.3672 1.3320162e+09 0.090002453 0.025248066 -32.724052 47.633392 6645.4902 1.2666961e+09 0.089109564 0.025681306 -32.815686 47.525098 6647.6131 1.2077339e+09 0.088110722 0.026760574 -32.903350 47.420773 6649.7360 1.1570290e+09 0.087225195 0.026619122 -32.990818 47.316645 6651.8589 1.1079492e+09 0.086675423 0.027142425 -33.078286 47.212516 6653.9819 1.0654536e+09 0.085919143 0.028026973 -33.165756 47.108388 6656.1048 1.0239325e+09 0.084039021 0.028115406 -33.255114 47.002010 6658.2277 9.7284385e+08 0.082550925 0.030464973 -33.355079 46.883003 6660.3507 9.1997266e+08 0.081108460 0.031944735 -33.454204 46.764537 6662.4736 8.6843313e+08 0.079701265 0.032778557 -33.537507 46.656242 6664.5965 8.2664530e+08 0.078644087 0.030023435 -33.620811 46.547946 6666.7195 7.9326718e+08 0.078241913 0.027048789 -33.706819 46.442358 6668.8424 7.5632157e+08 0.076911886 0.028216222 -33.794287 46.338229 6670.9653 7.2210277e+08 0.076753444 0.026881419 -33.880722 46.234097 6673.0882 6.9365429e+08 0.076123328 0.027591187 -33.964038 46.129952 6675.2112 6.6926642e+08 0.074187811 0.030202824 -34.047353 46.025808 6677.3341 6.4487104e+08 0.072048427 0.031883262 -34.130657 45.918145 6679.4570 6.1935651e+08 0.071512666 0.029890104 -34.213959 45.809852 6681.5800 5.9213194e+08 0.072246538 0.030102293 -34.300456 45.696767 6683.7029 5.6128332e+08 0.072573196 0.032218669 -34.390902 45.577760 6685.8258 5.3104961e+08 0.072227169 0.033577103 -34.478873 45.463910 6687.9487 5.0446022e+08 0.070065860 0.033813776 -34.562177 45.359781 6690.0717 4.8276789e+08 0.068220740 0.033107650 -34.645480 45.255651 6692.1946 4.6433781e+08 0.067254740 0.032539347 -34.724844 45.147584 6694.3175 4.4685074e+08 0.066469234 0.030815988 -34.803981 45.039291 6696.4405 4.2796745e+08 0.066279103 0.029858789 -34.889279 44.925161 6698.5634 4.0961236e+08 0.065279944 0.030991136 -34.979723 44.806154 6700.6863 3.8909024e+08 0.063623220 0.031176781 -35.065146 44.693755 6702.8092 3.6921056e+08 0.063047949 0.033522920 -35.144285 44.589627 6704.9322 3.4960491e+08 0.063319955 0.036635302 -35.223244 44.485318 6707.0551 3.3730218e+08 0.062942201 0.040178932 -35.298216 44.377023 6709.1780 3.2718362e+08 0.062265419 0.041019303 -35.373189 44.268729 6711.3010 3.1671763e+08 0.060447018 0.041034650 -35.458101 44.153552 6713.4239 3.0395679e+08 0.058411537 0.045219765 -35.548546 44.034545 6715.5468 2.8795919e+08 0.056599847 0.047937866 -35.630610 43.923597 6717.6698 2.7565941e+08 0.054559833 0.049832841 -35.705583 43.819468 6719.7927 2.6633441e+08 0.053082039 0.050616732 -35.782064 43.712575 6721.9156 2.5489041e+08 0.053213911 0.050579778 -35.867749 43.588809 6724.0385 2.3959763e+08 0.051177957 0.049604808 -35.953004 43.465830 6726.1615 2.2628588e+08 0.047438342 0.040952824 -36.027977 43.361701 6728.2844 2.1779110e+08 0.046822084 0.040031189 -36.102950 43.257572 6730.4073 2.1073355e+08 0.045399682 0.040937402 -36.175260 43.153443 6732.5303 2.0548251e+08 0.044065315 0.043837828 -36.246067 43.049314 6734.6532 1.9771262e+08 0.043863749 0.049314299 -36.320420 42.940505 6736.7761 1.9050203e+08 0.045659395 0.053289165 -36.406105 42.816737 6738.8990 1.8464930e+08 0.046565362 0.062270759 -36.489743 42.695671 6741.0220 1.7524416e+08 0.045600394 0.065821368 -36.560551 42.591542 6743.1449 1.6664418e+08 0.042055705 0.072024969 -36.631359 42.487414 6745.2678 1.6026003e+08 0.039274776 0.078679482 -36.709620 42.368818 6747.3908 1.5394182e+08 0.034913757 0.067226636 -36.790543 42.245052 6749.5137 1.4837211e+08 0.033768551 0.072137283 -36.871468 42.124313 6751.6366 1.4070797e+08 0.030798511 0.073980839 -36.952394 42.005306 6753.7596 1.3258233e+08 0.029214939 0.075435338 -37.025674 41.894263 6755.8825 1.2769293e+08 0.026960245 0.074218433 -37.092316 41.790134 6758.0054 1.2375609e+08 0.026279784 0.073716764 -37.160879 41.683365 6760.1283 1.2093963e+08 0.026945662 0.076306009 -37.241802 41.559597 6762.2513 1.1682869e+08 0.031007730 0.077645527 -37.322245 41.436490 6764.3742 1.1315102e+08 0.033931147 0.079501212 -37.388897 41.332346 6766.4971 1.0865079e+08 0.034895224 0.080838258 -37.455550 41.228202 6768.6201 1.0632355e+08 0.030970521 0.083087135 -37.528225 41.114647 6770.7430 1.0144040e+08 0.026928171 0.088681768 -37.604389 40.995640 6772.8659 96166035. 0.023158297 0.093830805 -37.680553 40.876634 6774.9888 91173879. 0.019402617 0.098979841 -37.756717 40.757627 6777.1118 86098475. 0.015668523 0.10412888 -37.828770 40.643246 6779.2347 83456853. 0.011940889 0.10927792 -37.895413 40.534953 6781.3576 81229955. 0.0082175131 0.11442695 -37.962349 40.426329 6783.4806 79306902. 0.0044810364 0.11957599 -38.038513 40.307322 6785.6035 75863925. 0.00073380579 0.12472503 -38.114678 40.188314 6787.7264 71916778. -0.0030479299 0.12987406 -38.186415 40.069308 6789.8493 66447031. -0.0068710193 0.13502310 -38.257820 39.950301 6791.9723 63666551. -0.011214633 0.14017214 -38.333172 39.827345 6794.0952 59256334. -0.018394062 0.14532117 -38.409336 39.703577 6796.2181 55461758. -0.019447657 0.15047021 -38.482032 39.583279 6798.3411 53331688. -0.016733473 0.15561925 -38.553437 39.464272