# # 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 = 49.813648 km # Date (UTC) = 2013-12-01T09:26:01.130 # Date (julian) = 2456627.89306863 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6509.5347 5.2026777e+10 0.085592351 0.035158361 -20.732520 54.428111 6511.6803 4.8851734e+10 0.095623503 0.035805370 -20.852260 54.338305 6513.8259 4.5924240e+10 0.10594201 0.036452380 -20.975774 54.244561 6515.9716 4.2954688e+10 0.11644773 0.037099389 -21.106274 54.143530 6518.1172 3.9869900e+10 0.12706320 0.037746398 -21.236775 54.042498 6520.2628 3.6616569e+10 0.13773354 0.038393408 -21.367275 53.945571 6522.4084 3.3736164e+10 0.14753138 0.039024208 -21.497775 53.848749 6524.5541 3.1256231e+10 0.15301045 0.039623799 -21.617341 53.756128 6526.6997 2.9184557e+10 0.15732469 0.040401651 -21.729613 53.666310 6528.8453 2.7497845e+10 0.16071676 0.042113094 -21.841885 53.576492 6530.9910 2.5903055e+10 0.16351817 0.045216042 -21.967162 53.476271 6533.1366 2.4310593e+10 0.16697737 0.047577640 -22.093452 53.375239 6535.2822 2.2619369e+10 0.16789728 0.048101864 -22.217418 53.274207 6537.4279 2.0956058e+10 0.16855735 0.048886946 -22.339500 53.173174 6539.5735 1.9514862e+10 0.16900102 0.050337833 -22.459844 53.074125 6541.7191 1.8285509e+10 0.16831470 0.051093321 -22.572101 52.984319 6543.8648 1.7270758e+10 0.16744165 0.051608854 -22.684357 52.894513 6546.0104 1.6332136e+10 0.16629229 0.052473078 -22.799445 52.799046 6548.1560 1.5316383e+10 0.16580337 0.053714240 -22.917317 52.698014 6550.3017 1.4193594e+10 0.16465228 0.055060891 -23.035731 52.596983 6552.4473 1.3062268e+10 0.16314860 0.055474185 -23.157811 52.495949 6554.5929 1.2029938e+10 0.16120128 0.054844822 -23.279892 52.394916 6556.7385 1.1138974e+10 0.15928312 0.053904545 -23.388933 52.302342 6558.8842 1.0425572e+10 0.15694913 0.052485874 -23.493706 52.212538 6561.0298 9.7910812e+09 0.15451525 0.051357990 -23.599200 52.121823 6563.1754 9.2208724e+09 0.15260801 0.049725419 -23.712879 52.020775 6565.3211 8.6826702e+09 0.15068065 0.047953812 -23.826558 51.919726 6567.4667 8.1174994e+09 0.14918768 0.046222575 -23.943196 51.818690 6569.6123 7.5916206e+09 0.14788304 0.044892278 -24.061066 51.717658 6571.7580 7.1022438e+09 0.14667793 0.044296259 -24.173374 51.620335 6573.9036 6.6743853e+09 0.14471408 0.042932364 -24.274405 51.530529 6576.0492 6.3316024e+09 0.14281664 0.041314727 -24.375437 51.440723 6578.1949 5.9928068e+09 0.14072369 0.038341903 -24.482008 51.343531 6580.3405 5.6527031e+09 0.13847503 0.036206087 -24.591460 51.242498 6582.4861 5.3129371e+09 0.13644740 0.035161506 -24.700911 51.140276 6584.6318 4.9704987e+09 0.13440316 0.034171369 -24.810363 51.035034 6586.7774 4.6619116e+09 0.13231302 0.033161247 -24.919815 50.929791 6588.9230 4.3911960e+09 0.13013298 0.033071685 -25.018236 50.838550 6591.0687 4.1709123e+09 0.12717554 0.029124445 -25.115525 50.748746 6593.2143 3.9843558e+09 0.12434226 0.026903003 -25.215671 50.656305 6595.3599 3.8066150e+09 0.12111419 0.025660895 -25.325139 50.555256 6597.5055 3.5971887e+09 0.11848652 0.025563196 -25.434607 50.454208 6599.6512 3.3722784e+09 0.11733589 0.024968895 -25.540444 50.353174 6601.7968 3.1758557e+09 0.11726881 0.027420941 -25.645686 50.252142 6603.9424 2.9925893e+09 0.11611219 0.026105352 -25.750929 50.149073 6606.0881 2.8233731e+09 0.11604242 0.027345703 -25.856171 50.043831 6608.2337 2.6632496e+09 0.11397563 0.023726192 -25.959739 49.940263 6610.3793 2.5208094e+09 0.11121376 0.024365423 -26.049544 49.850457 6612.5250 2.4115163e+09 0.10950884 0.023928518 -26.139349 49.760651 6614.6706 2.3119713e+09 0.10842017 0.023478478 -26.235885 49.665950 6616.8162 2.2057090e+09 0.10700258 0.023410406 -26.341127 49.564919 6618.9619 2.0915497e+09 0.10632032 0.024497113 -26.446115 49.463632 6621.1075 1.9698991e+09 0.10558264 0.025053818 -26.547147 49.358390 6623.2531 1.8578295e+09 0.10405659 0.024585604 -26.648180 49.253148 6625.3988 1.7597744e+09 0.10266513 0.025873436 -26.738965 49.158472 6627.5444 1.6835235e+09 0.10053053 0.025527098 -26.825040 49.068654 6629.6900 1.6196922e+09 0.098988507 0.025984348 -26.911320 48.978625 6631.8356 1.5542130e+09 0.096889332 0.026015651 -27.012340 48.873395 6633.9813 1.4822470e+09 0.095067012 0.026323574 -27.113373 48.768152 6636.1269 1.4035268e+09 0.093300740 0.026500468 -27.211722 48.665595 6638.2725 1.3302583e+09 0.091929787 0.025659768 -27.308544 48.564563 6640.4182 1.2646444e+09 0.091594987 0.025219488 -27.405367 48.462428 6642.5638 1.2023271e+09 0.091007791 0.025174768 -27.502191 48.357185 6644.7094 1.1471763e+09 0.089678229 0.025420281 -27.599015 48.251943 6646.8551 1.0878113e+09 0.088445276 0.026362758 -27.692105 48.150432 6649.0007 1.0278584e+09 0.087338636 0.027632725 -27.784718 48.049399 6651.1463 9.7803444e+08 0.087161403 0.026596306 -27.873984 47.952191 6653.2920 9.3488206e+08 0.086800173 0.027674726 -27.960047 47.858644 6655.4376 9.0087778e+08 0.085348782 0.027791030 -28.046110 47.765098 6657.5832 8.6993371e+08 0.083623146 0.029577632 -28.137666 47.665273 6659.7289 8.3175466e+08 0.082171828 0.031682559 -28.230280 47.564239 6661.8745 7.9464834e+08 0.080682424 0.032980344 -28.320944 47.461257 6664.0201 7.5760375e+08 0.079272346 0.032132479 -28.409347 47.356014 6666.1657 7.2101964e+08 0.079312818 0.026940893 -28.498121 47.251139 6668.3114 6.8521152e+08 0.078372235 0.027746324 -28.590747 47.150092 6670.4570 6.4826570e+08 0.077971356 0.027116906 -28.683374 47.049046 6672.6026 6.1838429e+08 0.077527592 0.027228902 -28.772992 46.945010 6674.7483 5.9071876e+08 0.076091169 0.029586010 -28.861396 46.839767 6676.8939 5.6832667e+08 0.073666523 0.032289841 -28.949799 46.735944 6679.0395 5.4215298e+08 0.072833950 0.030235100 -29.038202 46.634911 6681.1852 5.1902921e+08 0.073694006 0.029799417 -29.126605 46.533878 6683.3308 4.9558187e+08 0.073994289 0.031673372 -29.215009 46.428797 6685.4764 4.7083712e+08 0.073488701 0.033208066 -29.303413 46.323555 6687.6221 4.5059415e+08 0.071185757 0.033995970 -29.383865 46.227361 6689.7677 4.3254387e+08 0.068771729 0.033324977 -29.458703 46.137557 6691.9133 4.1523993e+08 0.067607875 0.032785778 -29.533542 46.047752 6694.0590 4.0236676e+08 0.066592794 0.031178396 -29.620774 45.943842 6696.2046 3.8605913e+08 0.066523799 0.029760788 -29.709177 45.838600 6698.3502 3.6981472e+08 0.065664834 0.030698533 -29.795315 45.733358 6700.4959 3.5611895e+08 0.064031709 0.031035505 -29.879509 45.628116 6702.6415 3.4222584e+08 0.063196112 0.033388956 -29.963703 45.523559 6704.7871 3.2800966e+08 0.063502043 0.036564068 -30.047896 45.422525 6706.9327 3.1666128e+08 0.063201854 0.040069774 -30.132089 45.321492 6709.0784 3.0264101e+08 0.062651115 0.041082692 -30.212978 45.217133 6711.2240 2.8736286e+08 0.060948626 0.040947092 -30.292975 45.111874 6713.3696 2.7519790e+08 0.058938767 0.045023528 -30.374702 45.008358 6715.5153 2.6304936e+08 0.057092860 0.047905592 -30.458896 44.907326 6717.6609 2.5460898e+08 0.055029512 0.049833389 -30.543355 44.805589 6719.8065 2.4413978e+08 0.053594227 0.050603574 -30.634766 44.685309 6721.9522 2.3120895e+08 0.053767700 0.050590791 -30.726178 44.565030 6724.0978 2.1695181e+08 0.051598625 0.049110005 -30.806640 44.459159 6726.2434 2.0662658e+08 0.047977137 0.040953563 -30.886624 44.353917 6728.3891 1.9619257e+08 0.047413610 0.040179523 -30.966608 44.251128 6730.5347 1.8940652e+08 0.045866989 0.041112027 -31.046592 44.150095 6732.6803 1.8127643e+08 0.044518129 0.043865454 -31.125704 44.048189 6734.8260 1.7366028e+08 0.044359305 0.049303904 -31.201479 43.942946 6736.9716 1.6889633e+08 0.046027201 0.054028135 -31.277254 43.837704 6739.1172 1.6470508e+08 0.046699651 0.062970000 -31.353028 43.735964 6741.2628 1.6084790e+08 0.045384919 0.066508344 -31.428802 43.634932 6743.4085 1.5781472e+08 0.041460886 0.073803020 -31.506497 43.531979 6745.5541 1.4880668e+08 0.039332223 0.078799829 -31.586481 43.426737 6747.6997 1.4269085e+08 0.035171075 0.067120267 -31.667000 43.320279 6749.8454 1.3778216e+08 0.033121796 0.072046469 -31.753601 43.200000 6751.9910 1.2911612e+08 0.030192055 0.074130673 -31.840162 43.079773 6754.1366 1.2723665e+08 0.029150697 0.075993746 -31.911732 42.978732 6756.2823 1.1816289e+08 0.026760735 0.074893221 -31.983296 42.877698 6758.4279 1.1488616e+08 0.026775564 0.074610168 -32.057499 42.774027 6760.5735 1.1192169e+08 0.027341937 0.077154964 -32.133274 42.668784 6762.7192 1.0637945e+08 0.032195508 0.076890781 -32.210561 42.559762 6764.8648 1.0128787e+08 0.034918372 0.079524715 -32.292352 42.439483 6767.0104 95525475. 0.035061275 0.081964095 -32.373104 42.322529 6769.1561 92614715. 0.030345044 0.084832761 -32.448890 42.221480 6771.3017 90952148. 0.026544323 0.090036860 -32.524676 42.120432 6773.4473 89040275. 0.022752292 0.095240959 -32.597093 42.016038 6775.5929 84267959. 0.018994554 0.10044506 -32.668657 41.910796 6777.7386 80948064. 0.015226894 0.10564916 -32.744540 41.801236 6779.8842 77257148. 0.011469271 0.11085326 -32.826331 41.685769 6782.0298 75180637. 0.0076956100 0.11605736 -32.903159 41.573817 6784.1755 73935517. 0.0039134433 0.12126146 -32.970514 41.468574 6786.3211 72166631. 0.00015081019 0.12646556 -33.037869 41.363331 6788.4667 66544232. -0.0035427633 0.13166965 -33.119202 41.243528 6790.6124 61503859. -0.0072214376 0.13687375 -33.200991 41.123249 6792.7580 55452338. -0.010861808 0.14207785 -33.269935 41.020096 6794.9036 54047062. -0.014584931 0.14728195 -33.337290 40.919062 6797.0493 52041304. -0.018274470 0.15248605 -33.409595 40.808129 6799.1949 49961667. -0.022310643 0.15769015 -33.486574 40.687850 6801.3405 47952180. -0.027466860 0.16289425 -33.565651 40.569668 6803.4862 46180566. -0.030218126 0.16809835 -33.647442 40.454200 6805.6318 47246897. -0.031729642 0.17330245 -33.722569 40.342387