# # 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 = 43.457492 km # Date (UTC) = 2013-01-09T09:22:10.072 # Date (julian) = 2456301.89039435 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6501.6572 1.0427881e+11 0.052484994 0.032782929 -22.422432 48.137364 6503.4394 9.1722755e+10 0.059643746 0.033320351 -22.506353 48.046450 6505.2216 8.1012061e+10 0.066976500 0.033857774 -22.590274 47.955537 6507.0038 7.2201786e+10 0.074592045 0.034395196 -22.674194 47.864624 6508.7860 6.4893427e+10 0.082548485 0.034932619 -22.758114 47.773710 6510.5683 5.8572847e+10 0.090819142 0.035470041 -22.842034 47.685382 6512.3505 5.3205577e+10 0.099478360 0.036007464 -22.925954 47.597965 6514.1327 4.8407061e+10 0.10847142 0.036544886 -23.009874 47.510548 6515.9149 4.3855285e+10 0.11770941 0.037082309 -23.100824 47.408635 6517.6971 3.9405011e+10 0.12710488 0.037619731 -23.192739 47.304732 6519.4793 3.5283314e+10 0.13670767 0.038157154 -23.280321 47.205726 6521.2616 3.2010696e+10 0.14675060 0.038694576 -23.360744 47.114811 6523.0438 2.9313985e+10 0.15426218 0.039189962 -23.441167 47.023897 6524.8260 2.7101185e+10 0.16050772 0.039720398 -23.521597 46.932977 6526.6082 2.5146055e+10 0.16482449 0.040305721 -23.602032 46.842050 6528.3904 2.3368018e+10 0.16912434 0.041752207 -23.682468 46.751124 6530.1726 2.1805564e+10 0.17351502 0.044070388 -23.760596 46.662505 6531.9549 2.0295085e+10 0.17667183 0.046618482 -23.837523 46.575088 6533.7371 1.8904559e+10 0.17777766 0.047832820 -23.914451 46.487671 6535.5193 1.7631619e+10 0.17779897 0.047999032 -23.991377 46.397464 6537.3015 1.6455826e+10 0.17779631 0.048827371 -24.068304 46.306550 6539.0837 1.5404192e+10 0.17641059 0.049744968 -24.145230 46.215636 6540.8659 1.4413846e+10 0.17511895 0.051263192 -24.222158 46.124722 6542.6482 1.3511389e+10 0.17363366 0.051248312 -24.299085 46.033809 6544.4304 1.2683632e+10 0.17203509 0.051993469 -24.376012 45.942896 6546.2126 1.1921931e+10 0.17009280 0.052639447 -24.452939 45.851982 6547.9948 1.1214162e+10 0.16921594 0.053665668 -24.529865 45.761068 6549.7770 1.0553452e+10 0.16806353 0.054758119 -24.606029 45.670154 6551.5592 9.9327623e+09 0.16654356 0.055432050 -24.679459 45.579241 6553.3414 9.3673405e+09 0.16512971 0.055163427 -24.752889 45.488327 6555.1237 8.8404841e+09 0.16381390 0.054749459 -24.826319 45.398668 6556.9059 8.3514148e+09 0.16198821 0.053879945 -24.899749 45.311251 6558.6881 7.8908656e+09 0.15976730 0.052652964 -24.973180 45.223834 6560.4703 7.4441069e+09 0.15772736 0.051850264 -25.046610 45.134673 6562.2525 7.0442262e+09 0.15556215 0.050639615 -25.120040 45.043759 6564.0347 6.6797563e+09 0.15278023 0.048755852 -25.193470 44.952844 6565.8170 6.3350270e+09 0.15074342 0.047390731 -25.264667 44.861931 6567.5992 6.0081893e+09 0.14911192 0.046110571 -25.334601 44.771018 6569.3814 5.7027972e+09 0.14703597 0.044877247 -25.404534 44.680105 6571.1636 5.4159884e+09 0.14502129 0.044458591 -25.477199 44.589182 6572.9458 5.1549379e+09 0.14299038 0.043688508 -25.550640 44.498255 6574.7280 4.9108823e+09 0.14072041 0.042505331 -25.624081 44.407329 6576.5103 4.6749724e+09 0.13849666 0.040784081 -25.694297 44.316413 6578.2925 4.4602402e+09 0.13645851 0.038187771 -25.764231 44.225499 6580.0747 4.2595137e+09 0.13468089 0.036451733 -25.834165 44.134585 6581.8569 4.0624136e+09 0.13280041 0.035337127 -25.904099 44.043672 6583.6391 3.8774552e+09 0.13105581 0.034698174 -25.974033 43.952759 6585.4213 3.7046058e+09 0.12947639 0.033633927 -26.043966 43.862544 6587.2035 3.5451243e+09 0.12791329 0.033203468 -26.113899 43.775127 6588.9858 3.3956777e+09 0.12610422 0.033050731 -26.183833 43.687710 6590.7680 3.2498144e+09 0.12400445 0.029633502 -26.252578 43.599105 6592.5502 3.1214163e+09 0.12198785 0.027539117 -26.319015 43.508190 6594.3324 2.9989096e+09 0.11968695 0.025990045 -26.385452 43.417276 6596.1146 2.8782280e+09 0.11698556 0.025726753 -26.456445 43.320128 6597.8968 2.7308601e+09 0.11526119 0.025439717 -26.532375 43.216225 6599.6791 2.5767651e+09 0.11416877 0.024970572 -26.608304 43.112322 6601.4613 2.4373453e+09 0.11362230 0.027262925 -26.674953 43.021117 6603.2435 2.3120294e+09 0.11230684 0.026519127 -26.741389 42.930203 6605.0257 2.2097582e+09 0.11132856 0.026686611 -26.807825 42.839289 6606.8079 2.1114031e+09 0.10985597 0.026052149 -26.874262 42.748376 6608.5901 2.0224675e+09 0.10694997 0.023716768 -26.940699 42.657463 6610.3724 1.9390600e+09 0.10397210 0.024358757 -27.007136 42.566550 6612.1546 1.8574365e+09 0.10178652 0.024205261 -27.073573 42.475637 6613.9368 1.7790887e+09 0.10065906 0.023917300 -27.140011 42.384724 6615.7190 1.7023299e+09 0.099379118 0.023273653 -27.205056 42.293811 6617.5012 1.6283649e+09 0.098805626 0.023605427 -27.267996 42.202896 6619.2834 1.5618535e+09 0.098294852 0.024594303 -27.330936 42.111982 6621.0657 1.4930599e+09 0.097702470 0.025067686 -27.395763 42.021061 6622.8479 1.4258127e+09 0.096637691 0.024532319 -27.462210 41.930134 6624.6301 1.3606612e+09 0.095403709 0.025199590 -27.528656 41.839208 6626.4123 1.3005134e+09 0.094132863 0.026065596 -27.592723 41.750664 6628.1945 1.2451650e+09 0.092967840 0.025782070 -27.655663 41.663247 6629.9767 1.1938405e+09 0.091865611 0.025932509 -27.718603 41.575830 6631.7589 1.1427662e+09 0.090325257 0.026007859 -27.781543 41.485549 6633.5412 1.0967350e+09 0.089126248 0.026246735 -27.844483 41.394635 6635.3234 1.0521198e+09 0.087895528 0.026448283 -27.907423 41.303721 6637.1056 1.0038536e+09 0.086652943 0.026109694 -27.967010 41.212808 6638.8878 9.5935540e+08 0.085653204 0.025632963 -28.026453 41.121895 6640.6700 9.1890550e+08 0.086093229 0.025188673 -28.086244 41.030982 6642.4522 8.8623460e+08 0.085747161 0.025170203 -28.149184 40.940067 6644.2345 8.5238567e+08 0.084634376 0.025368946 -28.212125 40.849152 6646.0167 8.1650750e+08 0.083606733 0.025928779 -28.274228 40.758238 6647.7989 7.8011361e+08 0.082649208 0.026858400 -28.333672 40.667325 6649.5811 7.4730037e+08 0.081626574 0.026832660 -28.393115 40.576412 6651.3633 7.1797706e+08 0.081007990 0.026762600 -28.452559 40.485499 6653.1455 6.8841666e+08 0.080564559 0.027599968 -28.512002 40.394585 6654.9278 6.5968131e+08 0.079534581 0.027640993 -28.571446 40.303671 6656.7100 6.3461866e+08 0.077955011 0.028646555 -28.630889 40.214574 6658.4922 6.1137320e+08 0.076851773 0.030933982 -28.690333 40.127157 6660.2744 5.8833284e+08 0.075866493 0.031875416 -28.749776 40.039740 6662.0566 5.6616512e+08 0.074716609 0.033012505 -28.809220 39.950016 6663.8388 5.4208232e+08 0.073681076 0.032250751 -28.868663 39.859103 6665.6211 5.2235501e+08 0.073784211 0.027529517 -28.928107 39.768190 6667.4033 5.0438912e+08 0.073336236 0.027251584 -28.984760 39.677266 6669.1855 4.8688676e+08 0.072340593 0.028165199 -29.040715 39.586339 6670.9677 4.7166012e+08 0.072440066 0.026880313 -29.096670 39.495413 6672.7499 4.5397037e+08 0.072146707 0.027314263 -29.163894 39.392281 6674.5321 4.3308677e+08 0.071094887 0.029403678 -29.231831 39.288377 6676.3143 4.1251004e+08 0.069182405 0.031916318 -29.294514 39.190165 6678.0966 3.9173210e+08 0.068512379 0.030872029 -29.350461 39.099252 6679.8788 3.7289752e+08 0.068653548 0.029541589 -29.406408 39.008339 6681.6610 3.5711303e+08 0.069285406 0.030164462 -29.462354 38.919448 6683.4432 3.4367901e+08 0.069592694 0.031838110 -29.518301 38.832031 6685.2254 3.3205186e+08 0.069328525 0.032942943 -29.574248 38.744615 6687.0076 3.2047592e+08 0.067768226 0.034338638 -29.630194 38.654685 6688.7899 3.0764490e+08 0.065383891 0.033967516 -29.686142 38.563770 6690.5721 2.9520808e+08 0.064451571 0.033050304 -29.742089 38.472855 6692.3543 2.8406663e+08 0.063653035 0.032353914 -29.798035 38.381942 6694.1365 2.7484188e+08 0.062886581 0.031069707 -29.853982 38.291029 6695.9187 2.6465141e+08 0.062935666 0.029690715 -29.909929 38.200116 6697.7009 2.5052102e+08 0.062465089 0.030179970 -29.965875 38.109202 6699.4832 2.4105506e+08 0.061329227 0.031144620 -30.021822 38.018288 6701.2654 2.3237046e+08 0.059897628 0.031798818 -30.078324 37.926125 6703.0476 2.2601131e+08 0.059889457 0.033794308 -30.138268 37.826218 6704.8298 2.1595374e+08 0.060116949 0.036585029 -30.198212 37.726311 6706.6120 2.0210246e+08 0.060008013 0.039511572 -30.255612 37.632129 6708.3942 1.9274740e+08 0.059766563 0.040472884 -30.311559 37.541215 6710.1764 1.8554902e+08 0.058778265 0.040531032 -30.367506 37.450302 6711.9587 1.8082129e+08 0.057024484 0.041782930 -30.420737 37.359388 6713.7409 1.7326919e+08 0.055370745 0.046366230 -30.473188 37.268474 6715.5231 1.6649494e+08 0.054004534 0.047913597 -30.525638 37.177560 6717.3053 1.5812259e+08 0.052361993 0.049855383 -30.578088 37.086647 6719.0875 1.5328139e+08 0.050469590 0.051286680 -30.630538 36.995734 6720.8697 1.4991684e+08 0.050946680 0.050318991 -30.683415 36.904309 6722.6520 1.4093224e+08 0.050387546 0.049799211 -30.743359 36.804402 6724.4342 1.3213927e+08 0.047768685 0.046301010 -30.803303 36.704495 6726.2164 1.2307824e+08 0.045224370 0.040953319 -30.859095 36.609568 6727.9986 1.1509220e+08 0.044826565 0.039629954 -30.911553 36.518642 6729.7808 1.1456969e+08 0.043799349 0.040524988 -30.964011 36.427716 6731.5630 1.0935029e+08 0.042452888 0.042870578 -31.018889 36.327779 6733.3453 1.0470342e+08 0.041689485 0.045798802 -31.074828 36.223892 6735.1275 1.0251173e+08 0.042206857 0.049428753 -31.130097 36.123172 6736.9097 95490107. 0.043781317 0.053794135 -31.182555 36.035742 6738.6919 90561296. 0.044633434 0.061130340 -31.235013 35.948312 6740.4741 85144082. 0.044170598 0.064860314 -31.286303 35.859722 6742.2563 82064289. 0.042107668 0.069235361 -31.335257 35.768810 6744.0386 81588573. 0.038161614 0.077823231 -31.384210 35.677897 6745.8208 83515892. 0.037391802 0.078911930 -31.438364 35.580837 6747.6030 81650499. 0.033259336 0.067153577 -31.498308 35.476933 6749.3852 78350551. 0.032425318 0.072172465 -31.558252 35.373029 6751.1674 74483716. 0.030287418 0.073782455 -31.607526 35.285131 6752.9496 70860868. 0.028098922 0.073035576 -31.656480 35.197714 6754.7318 71232030. 0.026706544 0.075036569 -31.706210 35.108468 6756.5141 71045583. 0.024441552 0.075489669 -31.762158 35.004564 6758.2963 65924800. 0.024612711 0.074331844 -31.818106 34.900661 6760.0785 63404448. 0.024492920 0.076210958 -31.869796 34.806793 6761.8607 58556111. 0.023956902 0.078039336 -31.918750 34.719376 6763.6429 55738036. 0.029704606 0.078395812 -31.967703 34.631959 6765.4251 53816084. 0.037963788 0.079608804 -32.021894 34.532196