# # 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 = 56.400588 km # Date (UTC) = 2014-01-22T10:04:11.572 # Date (julian) = 2456679.91957838 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6504.9565 5.7889238e+10 0.066606767 0.033777818 101.02884 45.849628 6507.1029 5.3750540e+10 0.076279260 0.034425068 101.13762 45.701720 6509.2493 4.9526715e+10 0.086140067 0.035072318 101.24992 45.550106 6511.3957 4.4890825e+10 0.096088859 0.035719567 101.36222 45.392884 6513.5422 4.0325611e+10 0.10617971 0.036366817 101.47330 45.235657 6515.6886 3.6139668e+10 0.11648129 0.037014067 101.57999 45.078430 6517.8350 3.2703616e+10 0.12716615 0.037661316 101.68001 44.931032 6519.9815 2.9957422e+10 0.13829919 0.038308566 101.77146 44.796268 6522.1279 2.7670902e+10 0.14948084 0.038950740 101.86839 44.653420 6524.2743 2.5504220e+10 0.15525964 0.039524413 101.97508 44.496193 6526.4207 2.3157413e+10 0.15982971 0.040109188 102.08177 44.338966 6528.5672 2.0882950e+10 0.16399327 0.041892422 102.18846 44.181739 6530.7136 1.8983805e+10 0.16732827 0.044827725 102.27913 44.042458 6532.8600 1.7487812e+10 0.17097194 0.047402655 102.36575 43.907717 6535.0065 1.6194371e+10 0.17280315 0.048221496 102.46278 43.760827 6537.1529 1.4955036e+10 0.17330819 0.048757305 102.56386 43.609214 6539.2993 1.3798220e+10 0.17350196 0.050005938 102.65137 43.473427 6541.4457 1.2776296e+10 0.17282145 0.051181979 102.73800 43.338665 6543.5922 1.1845979e+10 0.17149104 0.051537310 102.83708 43.184549 6545.7386 1.0945874e+10 0.16973385 0.052462184 102.93699 43.029133 6547.8850 1.0185578e+10 0.16836827 0.053623923 103.02362 42.894369 6550.0315 9.5575439e+09 0.16691221 0.054993235 103.11028 42.759540 6552.1779 8.9805639e+09 0.16507220 0.055541994 103.20574 42.602312 6554.3243 8.3901957e+09 0.16287747 0.054839186 103.29817 42.450073 6556.4707 7.8317264e+09 0.16092107 0.053943919 103.37999 42.315311 6558.6172 7.3679225e+09 0.15879175 0.052713405 103.46378 42.177306 6560.7636 6.9409500e+09 0.15634035 0.051585834 103.55924 42.020077 6562.9100 6.5277838e+09 0.15425364 0.050013987 103.64974 41.871014 6565.0564 6.1634771e+09 0.15225294 0.048254301 103.73156 41.736251 6567.2029 5.8475646e+09 0.15036218 0.046445652 103.81568 41.596673 6569.3493 5.5486825e+09 0.14862920 0.044875159 103.90552 41.445060 6571.4957 5.2429787e+09 0.14729747 0.044367881 103.99131 41.301956 6573.6422 4.9533660e+09 0.14536079 0.043142165 104.07313 41.167194 6575.7886 4.6703711e+09 0.14336819 0.041583508 104.15837 41.022848 6577.9350 4.3941438e+09 0.14124737 0.038751691 104.24820 40.865651 6580.0814 4.1200984e+09 0.13897520 0.036445488 104.32975 40.722946 6582.2279 3.8704779e+09 0.13673510 0.035231785 104.40675 40.588182 6584.3743 3.6851405e+09 0.13435091 0.034311617 104.48376 40.453419 6586.5207 3.5294511e+09 0.13192330 0.033164565 104.56077 40.318656 6588.6672 3.3714412e+09 0.12959483 0.033157132 104.64407 40.172874 6590.8136 3.2089156e+09 0.12666300 0.029548677 104.73392 40.015647 6592.9600 3.0364006e+09 0.12427540 0.027141063 104.81124 39.877778 6595.1064 2.8796628e+09 0.12183917 0.025634609 104.88343 39.747828 6597.2529 2.7561546e+09 0.11952445 0.025642932 104.95867 39.614835 6599.3993 2.6420930e+09 0.11827822 0.024953746 105.03567 39.480070 6601.5457 2.5237135e+09 0.11832169 0.027302694 105.11668 39.332856 6603.6921 2.3957591e+09 0.11727458 0.026253523 105.20091 39.175629 6605.8386 2.2723030e+09 0.11711935 0.027368543 105.27584 39.035776 6607.9850 2.1621557e+09 0.11526492 0.023761981 105.34803 38.901014 6610.1314 2.0706634e+09 0.11244130 0.024128560 105.42022 38.766251 6612.2779 1.9835532e+09 0.11042796 0.024113145 105.49242 38.631489 6614.4243 1.9011983e+09 0.10945003 0.023648174 105.56461 38.499700 6616.5707 1.8266113e+09 0.10799668 0.023371873 105.63680 38.369750 6618.7171 1.7472034e+09 0.10731804 0.024312325 105.71247 38.225063 6620.8636 1.6659390e+09 0.10655298 0.025045483 105.79108 38.067834 6623.0100 1.5836064e+09 0.10512860 0.024495531 105.86482 37.927665 6625.1564 1.5102481e+09 0.10365696 0.025584270 105.93702 37.792902 6627.3029 1.4509688e+09 0.10147518 0.025433799 106.00593 37.658140 6629.4493 1.3971602e+09 0.10008779 0.026027873 106.07331 37.523378 6631.5957 1.3410505e+09 0.098122403 0.025991278 106.14747 37.378457 6633.7421 1.2797046e+09 0.096468054 0.026281823 106.22606 37.226875 6635.8886 1.2185706e+09 0.094714997 0.026533042 106.29543 37.089129 6638.0350 1.1653941e+09 0.093427926 0.025670118 106.36281 36.954365 6640.1814 1.1209328e+09 0.093171266 0.025248455 106.43020 36.819602 6642.3279 1.0812787e+09 0.093105878 0.025165113 106.49758 36.684839 6644.4743 1.0455693e+09 0.092187117 0.025394865 106.56496 36.553287 6646.6207 1.0076185e+09 0.091247531 0.026241446 106.63235 36.423337 6648.7671 9.6403626e+08 0.090252945 0.027477807 106.70635 36.277306 6650.9136 9.1601684e+08 0.090017297 0.026464378 106.78496 36.120079 6653.0600 8.6866391e+08 0.089832863 0.027556291 106.85060 35.981019 6655.2064 8.2817211e+08 0.088641493 0.027695509 106.91317 35.846257 6657.3528 7.9847285e+08 0.086864660 0.029310402 106.97925 35.715012 6659.4993 7.7148674e+08 0.085363380 0.031730449 107.04663 35.585062 6661.6457 7.4146096e+08 0.083954180 0.032863820 107.11087 35.451966 6663.7921 7.1212812e+08 0.082585469 0.032263694 107.17344 35.317201 6665.9386 6.8419989e+08 0.082497748 0.027009269 107.23601 35.182438 6668.0850 6.5756825e+08 0.081669450 0.027545982 107.29858 35.047676 6670.2314 6.3185832e+08 0.081053368 0.027221422 107.36634 34.904525 6672.3778 6.0007988e+08 0.080709846 0.027098603 107.43934 34.752913 6674.5243 5.7117267e+08 0.079499443 0.029397047 107.50486 34.613381 6676.6707 5.4528720e+08 0.077165802 0.032145985 107.56742 34.478619 6678.8171 5.2384823e+08 0.076226820 0.030390085 107.62999 34.346933 6680.9636 5.0487677e+08 0.076966218 0.029649488 107.69256 34.216982 6683.1100 4.8714669e+08 0.077334175 0.031349761 107.75243 34.084330 6685.2564 4.6800639e+08 0.076891945 0.032975669 107.81018 33.949568 6687.4028 4.4825581e+08 0.074853450 0.034118234 107.87531 33.803936 6689.5493 4.2969523e+08 0.072452198 0.033521597 107.94832 33.646706 6691.6957 4.0926076e+08 0.071571513 0.032837125 108.01060 33.508653 6693.8421 3.9258140e+08 0.070734426 0.031315189 108.06835 33.378705 6695.9885 3.7665785e+08 0.070688879 0.029677889 108.12912 33.245746 6698.1350 3.6196175e+08 0.069937183 0.030403089 108.19169 33.110982 6700.2814 3.4904733e+08 0.068362191 0.030876444 108.25162 32.978853 6702.4278 3.3653367e+08 0.067244226 0.033218357 108.30937 32.848903 6704.5743 3.2179574e+08 0.067649527 0.036459546 108.37164 32.708791 6706.7207 3.0846559e+08 0.067515951 0.039700707 108.43902 32.557208 6708.8671 2.9702920e+08 0.067056237 0.040987838 108.49977 32.417207 6711.0135 2.8550801e+08 0.065488559 0.040707642 108.55753 32.282444 6713.1600 2.7997546e+08 0.063463200 0.044265210 108.61528 32.150621 6715.3064 2.7554335e+08 0.061476747 0.047691966 108.67303 32.020671 6717.4528 2.7180383e+08 0.059362719 0.049846259 108.73592 31.876179 6719.5993 2.6302297e+08 0.057709699 0.050800502 108.80331 31.718952 6721.7457 2.4950615e+08 0.058046971 0.050528577 108.86345 31.582244 6723.8921 2.4082991e+08 0.056213641 0.049866490 108.92120 31.452294 6726.0385 2.3394844e+08 0.052294184 0.040951715 108.97571 31.322344 6728.1850 2.2803907e+08 0.051578682 0.039890260 109.02866 31.192394 6730.3314 2.1921050e+08 0.050147293 0.040833286 109.09022 31.046165 6732.4778 2.0853914e+08 0.048739708 0.043828175 109.15760 30.888938 6734.6243 1.9932968e+08 0.048426401 0.049316040 109.21320 30.753967 6736.7707 1.9268184e+08 0.050158384 0.053268604 109.26614 30.624016 6738.9171 1.8723503e+08 0.051003413 0.062370189 109.32264 30.494065 6741.0635 1.8198266e+08 0.049885778 0.065939896 109.38039 30.364115 6743.2100 1.7428644e+08 0.046176470 0.072463845 109.44080 30.216148 6745.3564 1.6587444e+08 0.043500817 0.078716710 109.50257 30.058921 6747.5028 1.5788155e+08 0.039130607 0.067188060 109.55657 29.925689 6749.6492 1.5290345e+08 0.037458956 0.072100169 109.60952 29.795739 6751.7957 1.4768859e+08 0.034265320 0.074048087 109.66246 29.665788 6753.9421 1.4017858e+08 0.032777363 0.076026105 109.71540 29.535838 6756.0885 1.3719463e+08 0.030111955 0.074394711 109.77473 29.386133 6758.2350 1.3399286e+08 0.029506732 0.074202173 109.83650 29.228905 6760.3814 1.3262669e+08 0.029776611 0.076788557 109.88994 29.097410 6762.5278 1.2657841e+08 0.033998125 0.077199438 109.94288 28.967460 6764.6742 1.1621807e+08 0.036531558 0.079515587 110.00346 28.818784 6766.8207 1.1193718e+08 0.036589067 0.081570118 110.06406 28.669028 6768.9671 1.0629608e+08 0.031668531 0.084335871 110.11219 28.539078 6771.1135 1.0539279e+08 0.027392143 0.089580490 110.16042 28.408982 6773.2600 1.0310283e+08 0.023141436 0.094786521 110.22218 28.257370 6775.4064 97710515. 0.018865895 0.099992553 110.28195 28.110650 6777.5528 92499697. 0.014562466 0.10519858 110.33490 27.980701 6779.6992 88722661. 0.010251101 0.11040462 110.38832 27.847542 6781.8457 87021579. 0.0059911984 0.11561065 110.44447 27.695928 6783.9921 82305264. 0.0016658664 0.12081668 110.49945 27.550503 6786.1385 77183854. -0.0026969011 0.12602271 110.55239 27.415740 6788.2849 73081334. -0.0070637037 0.13122874 110.60626 27.276098 6790.4314 73041194. -0.011230223 0.13643477 110.66241 27.124485 6792.5778 74796328. -0.015279373 0.14164080 110.71449 26.983893 6794.7242 74397682. -0.019472959 0.14684683 110.76261 26.853944 6796.8707 71382486. -0.023905465 0.15205287 110.81420 26.714658 6799.0171 69367474. -0.028366231 0.15725890 110.87035 26.563045 6801.1635 66695032. -0.033061023 0.16246493 110.92651 26.411433 6803.3099 63224068. -0.038176668 0.16767096 110.98266 26.259820 6805.4564 59408329. -0.043984417 0.17287699 111.03601 26.127057 6807.6028 58697082. -0.050367533 0.17808302 111.08895 25.997128 6809.7492 56955612. -0.060391836 0.18328905 111.14443 25.850043 6811.8957 55386935. -0.10003297 0.18849509 111.20052 25.698432 6814.0421 52720569. -0.074752346 0.19370112 111.25106 25.546819 6816.1885 48364558. -0.0090261924 0.19890715 111.30105 25.400178