# # 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 = 52.068316 km # Date (UTC) = 2013-01-18T10:23:00.240 # Date (julian) = 2456310.93264167 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.9408 7.1565955e+10 0.061553551 0.033471539 95.413288 45.320063 6506.0412 6.4165845e+10 0.070735469 0.034104917 95.507486 45.191524 6508.1416 5.9075376e+10 0.080488643 0.034738295 95.601681 45.059650 6510.2421 5.4483682e+10 0.090574530 0.035371674 95.695875 44.928569 6512.3425 5.0567519e+10 0.10108780 0.036005052 95.790070 44.801404 6514.4429 4.6735602e+10 0.11186361 0.036638431 95.884727 44.673278 6516.5433 4.2772938e+10 0.12279514 0.037271809 95.989133 44.524914 6518.6438 3.8988099e+10 0.13396339 0.037905187 96.091236 44.380268 6520.7442 3.5317869e+10 0.14532104 0.038538566 96.185431 44.248394 6522.8446 3.2282953e+10 0.15473445 0.039138425 96.279145 44.117001 6524.9450 2.9723817e+10 0.16154677 0.039762693 96.368632 43.989836 6527.0455 2.7357401e+10 0.16654137 0.040749486 96.458120 43.862671 6529.1459 2.5291930e+10 0.17012424 0.042468196 96.547608 43.730895 6531.2463 2.3412357e+10 0.17368026 0.045587217 96.637096 43.599021 6533.3468 2.1658150e+10 0.17701328 0.047666949 96.722552 43.471176 6535.4472 2.0022140e+10 0.17795329 0.048030309 96.807328 43.344011 6537.5476 1.8544597e+10 0.17875808 0.048943402 96.895553 43.216846 6539.6480 1.7248552e+10 0.17853534 0.050428066 96.985037 43.089681 6541.7485 1.6097780e+10 0.17647402 0.051083807 97.071653 42.959645 6543.8489 1.5058260e+10 0.17403669 0.051604690 97.156430 42.827769 6545.9493 1.4080648e+10 0.17148110 0.052464072 97.241207 42.698184 6548.0498 1.3182685e+10 0.17000639 0.053682504 97.325984 42.571020 6550.1502 1.2370001e+10 0.16828170 0.055022963 97.410761 42.442147 6552.2506 1.1632741e+10 0.16625323 0.055523689 97.495538 42.310271 6554.3510 1.0885671e+10 0.16378809 0.054839747 97.583702 42.174443 6556.4515 1.0077361e+10 0.16149515 0.053946752 97.682611 42.026079 6558.5519 9.2825449e+09 0.15920321 0.052769025 97.773611 41.886615 6560.6523 8.5640765e+09 0.15656405 0.051686160 97.853680 41.759450 6562.7527 7.9715532e+09 0.15408525 0.050163638 97.933749 41.630888 6564.8532 7.4626853e+09 0.15161176 0.048384939 98.013815 41.499014 6566.9536 6.9917064e+09 0.14933893 0.046643435 98.093881 41.367955 6569.0540 6.5523046e+09 0.14706188 0.044855941 98.173947 41.240790 6571.1545 6.1415497e+09 0.14540604 0.044461090 98.254013 41.113389 6573.2549 5.7464925e+09 0.14336210 0.043452943 98.334079 40.981515 6575.3553 5.3921272e+09 0.14097449 0.042018218 98.414145 40.849641 6577.4557 5.1047756e+09 0.13818624 0.039504515 98.484933 40.736867 6579.5562 4.8721651e+09 0.13494735 0.036764747 98.554989 40.625600 6581.6566 4.6669609e+09 0.13189559 0.035397783 98.627699 40.506379 6583.7570 4.4483195e+09 0.12894205 0.034638495 98.703057 40.379213 6585.8575 4.2202923e+09 0.12596522 0.033285261 98.780191 40.250272 6587.9579 3.9928313e+09 0.12359349 0.033370599 98.860257 40.118398 6590.0583 3.7845028e+09 0.12087552 0.030953610 98.939128 39.987719 6592.1587 3.5882178e+09 0.11811104 0.027919348 99.014487 39.860554 6594.2592 3.4004144e+09 0.11582463 0.026030257 99.089845 39.733389 6596.3596 3.2166062e+09 0.11337609 0.025725639 99.165200 39.606224 6598.4600 3.0440081e+09 0.11169779 0.025187537 99.240556 39.479019 6600.5604 2.8818799e+09 0.11146158 0.026142045 99.315914 39.347149 6602.6609 2.7362938e+09 0.11072731 0.026952672 99.391273 39.215275 6604.7613 2.6018211e+09 0.10981305 0.026523311 99.462467 39.087564 6606.8617 2.4687393e+09 0.10883746 0.025955467 99.533115 38.960399 6608.9622 2.3480049e+09 0.10590468 0.023706932 99.607345 38.833234 6611.0626 2.2303922e+09 0.10305979 0.024918547 99.682700 38.706069 6613.1630 2.1230070e+09 0.10206528 0.023633399 99.755053 38.575900 6615.2634 2.0160141e+09 0.10075966 0.023259637 99.825701 38.444026 6617.3639 1.9142307e+09 0.099571645 0.023559888 99.896349 38.314574 6619.4643 1.8211182e+09 0.098799899 0.024637941 99.966997 38.187409 6621.5647 1.7324665e+09 0.097693086 0.024902267 100.03949 38.060244 6623.6651 1.6452220e+09 0.095849527 0.024738253 100.11484 37.933078 6625.7656 1.5584840e+09 0.094589149 0.026311167 100.18546 37.809070 6627.8660 1.4878476e+09 0.092638019 0.025651334 100.24316 37.693683 6629.9664 1.4315337e+09 0.091058370 0.025934371 100.30085 37.578295 6632.0669 1.3804680e+09 0.088966254 0.026040362 100.36944 37.452997 6634.1673 1.3288175e+09 0.087231651 0.026339045 100.44009 37.325832 6636.2677 1.2654915e+09 0.085720197 0.026445788 100.51074 37.198667 6638.3681 1.2071534e+09 0.084821969 0.025655603 100.58139 37.071502 6640.4686 1.1473753e+09 0.085286247 0.025213322 100.64923 36.944336 6642.5690 1.0917560e+09 0.085418198 0.025174981 100.71517 36.817170 6644.6694 1.0451286e+09 0.084654393 0.025415956 100.78333 36.687783 6646.7699 9.9362717e+08 0.083789288 0.026318648 100.85398 36.555909 6648.8703 9.4623848e+08 0.082829376 0.027546853 100.92298 36.425676 6650.9707 9.0028873e+08 0.082647240 0.026477460 100.98892 36.298511 6653.0711 8.5776939e+08 0.082452192 0.027561981 101.05486 36.171346 6655.1716 8.2280382e+08 0.081278548 0.027681107 101.12080 36.044181 6657.2720 7.8696986e+08 0.079598623 0.029216613 101.18673 35.917018 6659.3724 7.4729492e+08 0.078268543 0.031756912 101.25266 35.789875 6661.4728 7.1130372e+08 0.077038712 0.032775781 101.31858 35.662732 6663.5733 6.7956062e+08 0.075850202 0.032324344 101.37646 35.547074 6665.6737 6.5562703e+08 0.075662699 0.027443246 101.43417 35.431669 6667.7741 6.3713470e+08 0.074982487 0.027387809 101.49381 35.309768 6669.8746 6.1462368e+08 0.074263358 0.027457471 101.55504 35.182603 6671.9750 5.8814781e+08 0.074026078 0.026879243 101.61829 35.055438 6674.0754 5.6065332e+08 0.073200023 0.029018407 101.68423 34.928273 6676.1758 5.3499413e+08 0.070962004 0.031827052 101.74873 34.801108 6678.2763 5.1422362e+08 0.069986334 0.030751834 101.80995 34.673943 6680.3767 4.9276793e+08 0.070362040 0.029522761 101.87204 34.546782 6682.4771 4.7003299e+08 0.071033934 0.030789083 101.93797 34.419639 6684.5776 4.4914945e+08 0.071127573 0.032683400 102.00361 34.292494 6686.6780 4.3106928e+08 0.070014357 0.034155543 102.06484 34.165328 6688.7784 4.1383194e+08 0.067475017 0.033964873 102.12607 34.038162 6690.8788 3.9769087e+08 0.066544769 0.033015148 102.18730 33.910997 6692.9793 3.8047303e+08 0.065901941 0.031628171 102.24853 33.783832 6695.0797 3.6392167e+08 0.065470271 0.029844836 102.30975 33.656668 6697.1801 3.4909200e+08 0.065022086 0.030114059 102.37098 33.529505 6699.2805 3.3253162e+08 0.063832880 0.031331570 102.43221 33.402340 6701.3810 3.1903498e+08 0.062187311 0.031968441 102.49343 33.275175 6703.4814 3.1040130e+08 0.062196207 0.034879851 102.55199 33.148010 6705.5818 2.9983479e+08 0.062310334 0.037702978 102.60851 33.020845 6707.6823 2.9167116e+08 0.061978208 0.040089094 102.66712 32.893679 6709.7827 2.7689632e+08 0.061082269 0.040634719 102.72834 32.766513 6711.8831 2.6338711e+08 0.059108791 0.041696971 102.78806 32.639348 6713.9835 2.5284603e+08 0.057020897 0.047243870 102.84458 32.512183 6716.0840 2.4412971e+08 0.055360850 0.048525034 102.90203 32.385018 6718.1844 2.3847148e+08 0.053227779 0.050099593 102.96325 32.257852 6720.2848 2.2489999e+08 0.052477382 0.050386765 103.02414 32.130687 6722.3852 2.1456019e+08 0.052171850 0.050128936 103.08065 32.003523 6724.4857 2.0442232e+08 0.049080026 0.045870949 103.13717 31.876359 6726.5861 1.9937750e+08 0.046243366 0.040956654 103.19369 31.749194 6728.6865 1.9669912e+08 0.045747344 0.040601140 103.25021 31.622029 6730.7870 1.8800614e+08 0.044117046 0.041457921 103.30673 31.494864 6732.8874 1.7889647e+08 0.042933752 0.043903574 103.36324 31.367699 6734.9878 1.6699827e+08 0.043010403 0.049294166 103.41976 31.240533 6737.0882 1.5883727e+08 0.044665808 0.054416664 103.47628 31.113367 6739.1887 1.5516747e+08 0.045235638 0.063057448 103.53280 30.986202 6741.2891 1.5194792e+08 0.043843937 0.066583215 103.58932 30.859038 6743.3895 1.5104070e+08 0.039902184 0.073675169 103.64584 30.731873 6745.4900 1.4477395e+08 0.037576108 0.078772859 103.70235 30.604708 6747.5904 1.3488398e+08 0.033218141 0.067157916 103.75887 30.477543 6749.6908 1.2910850e+08 0.031456930 0.072088789 103.81539 30.350378 6751.7912 1.2186905e+08 0.028427914 0.074046210 103.87091 30.224205 6753.8917 1.1975912e+08 0.027017222 0.075862877 103.92272 30.101750 6755.9921 1.1815135e+08 0.024631603 0.074170376 103.97494 29.978883 6758.0925 1.1332327e+08 0.024035147 0.073900967 104.03146 29.851717 6760.1929 1.1016328e+08 0.024608029 0.076429212 104.08797 29.724551 6762.2934 1.0498782e+08 0.028634301 0.077577607 104.13995 29.597387 6764.3938 1.0118134e+08 0.031430491 0.079502152 104.19176 29.470222 6766.4942 98770661. 0.032316256 0.080831704 104.24753 29.343058 6768.5947 97653222. 0.028437606 0.082995743 104.30405 29.215892 6770.6951 94613531. 0.024344732 0.088565588 104.35719 29.088727 6772.7955 91982978. 0.020550719 0.093660048 104.40899 28.961562 6774.8959 87313148. 0.016714641 0.098754509 104.46594 28.825061 6776.9964 81035217. 0.012829561 0.10384897 104.52638 28.682193 6779.0968 77262849. 0.0090178448 0.10894343 104.58014 28.551488 6781.1972 74842234. 0.0052422570 0.11403789 104.63194 28.424322 6783.2977 74733250. 0.0015415606 0.11913235 104.68375 28.297158 6785.3981 73881166. -0.0022148414 0.12422681 104.73556 28.169993 6787.4985 69541772. -0.0061762481 0.12932127 104.78737 28.045317 6789.5989 65575125. -0.010212627 0.13441573 104.83918 27.922862 6791.6994 62749485. -0.014304231 0.13951019 104.89448 27.789914 6793.7998 57947285. -0.018738085 0.14460465 104.95493 27.641550 6795.9002 56999117. -0.023134837 0.14969911 105.01032 27.505591 6798.0006 53063102. -0.028351773 0.15479358 105.06212 27.378425 6800.1011 49288738. -0.034652836 0.15988804 105.11393 27.253436 6802.2015 49571646. -0.042912974 0.16498250 105.16574 27.130981 6804.3019 47520370. -0.075287545 0.17007696 105.21861 26.999761 6806.4024 48286293. -0.054969796 0.17517142 105.27355 26.851427 6808.5028 46151488. -0.0089522029 0.18026588 105.32686 26.716510