# # 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 = 54.646080 km # Date (UTC) = 2014-11-28T08:59:58.034 # Date (julian) = 2456989.87497724 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6496.6153 1.5454390e+11 0.040350456 0.031262556 -10.715255 57.600388 6498.5575 1.3022202e+11 0.046829403 0.031848224 -10.856247 57.515035 6500.4997 1.1027648e+11 0.053066729 0.032433892 -10.997238 57.427392 6502.4419 9.4241846e+10 0.059126889 0.033019560 -11.138229 57.339749 6504.3841 8.2104644e+10 0.065139133 0.033605228 -11.276269 57.252106 6506.3263 7.2693262e+10 0.071277470 0.034190896 -11.413450 57.164463 6508.2685 6.4819174e+10 0.077664857 0.034776564 -11.550631 57.076819 6510.2107 5.8106810e+10 0.084419835 0.035362232 -11.687812 56.989176 6512.1530 5.2176174e+10 0.091611036 0.035947900 -11.824993 56.901533 6514.0952 4.7190204e+10 0.099397753 0.036533568 -11.952371 56.819014 6516.0374 4.3301331e+10 0.10802142 0.037119236 -12.070920 56.741110 6517.9796 4.0239294e+10 0.11759224 0.037704904 -12.189470 56.663206 6519.9218 3.7478762e+10 0.12796690 0.038290572 -12.314336 56.579715 6521.8640 3.4745976e+10 0.13901592 0.038876240 -12.443896 56.492072 6523.8062 3.1955473e+10 0.14535732 0.039378929 -12.573456 56.404429 6525.7484 2.9359223e+10 0.15122910 0.039696800 -12.703034 56.316772 6527.6906 2.6972531e+10 0.15785135 0.041217874 -12.832613 56.229114 6529.6328 2.4819722e+10 0.16338715 0.043243835 -12.962185 56.141461 6531.5750 2.2897182e+10 0.16772169 0.046065663 -13.091745 56.053818 6533.5173 2.1138753e+10 0.17060189 0.047739404 -13.221305 55.966174 6535.4595 1.9537986e+10 0.17099770 0.048024984 -13.348193 55.875859 6537.4017 1.8049649e+10 0.17074299 0.048874597 -13.473941 55.784406 6539.3439 1.6672933e+10 0.16954756 0.050059888 -13.599690 55.693247 6541.2861 1.5375354e+10 0.16779943 0.051233752 -13.725440 55.605604 6543.2283 1.4193088e+10 0.16622965 0.051441812 -13.851189 55.517960 6545.1705 1.3167830e+10 0.16508998 0.052457094 -13.969077 55.434727 6547.1127 1.2349821e+10 0.16374214 0.053330229 -14.077465 55.356823 6549.0549 1.1688208e+10 0.16203278 0.054022256 -14.185853 55.278920 6550.9971 1.1052321e+10 0.16102300 0.055235034 -14.301022 55.194235 6552.9393 1.0399270e+10 0.16053317 0.055350334 -14.422961 55.102780 6554.8816 9.7162652e+09 0.15947073 0.054850879 -14.544900 55.011325 6556.8238 9.0821713e+09 0.15802289 0.053892017 -14.663500 54.923210 6558.7660 8.5122164e+09 0.15630766 0.052586601 -14.781627 54.835567 6560.7082 8.0096015e+09 0.15461535 0.051635792 -14.899755 54.746964 6562.6504 7.5540412e+09 0.15312280 0.050261032 -15.017883 54.655509 6564.5926 7.1285345e+09 0.15138429 0.048503030 -15.136012 54.564055 6566.5348 6.7296646e+09 0.14987817 0.046880344 -15.251759 54.472592 6568.4770 6.3387291e+09 0.14868931 0.045333168 -15.366093 54.381126 6570.4192 5.9640510e+09 0.14774232 0.044743850 -15.480427 54.289680 6572.3614 5.6045892e+09 0.14637720 0.044023169 -15.594744 54.202030 6574.3036 5.2689029e+09 0.14437447 0.042709165 -15.709061 54.114387 6576.2459 4.9705511e+09 0.14257885 0.041088408 -15.818558 54.029154 6578.1881 4.7202265e+09 0.14077529 0.038352637 -15.920172 53.947863 6580.1303 4.5178576e+09 0.13913173 0.036400360 -16.021786 53.866571 6582.0725 4.3335725e+09 0.13757579 0.035274070 -16.127198 53.780939 6584.0147 4.1535427e+09 0.13595623 0.034507507 -16.237705 53.689486 6585.9569 3.9528764e+09 0.13459774 0.033205752 -16.348212 53.598033 6587.8991 3.7398009e+09 0.13381909 0.033357578 -16.458719 53.506579 6589.8413 3.5392218e+09 0.13241034 0.031376873 -16.569226 53.415124 6591.7835 3.3585494e+09 0.13047824 0.028317788 -16.679052 53.323670 6593.7257 3.1913906e+09 0.12873036 0.026427503 -16.785748 53.232215 6595.6679 3.0339407e+09 0.12659807 0.025692839 -16.892445 53.140761 6597.6102 2.8843111e+09 0.12493569 0.025530185 -16.999141 53.051419 6599.5524 2.7435438e+09 0.12391966 0.024962952 -17.105837 52.963776 6601.4946 2.6187682e+09 0.12371375 0.027278607 -17.212533 52.876132 6603.4368 2.4912364e+09 0.12259678 0.026404698 -17.319244 52.784933 6605.3790 2.3645515e+09 0.12208694 0.026982989 -17.425956 52.693466 6607.3212 2.2465960e+09 0.12060635 0.025072738 -17.527997 52.605115 6609.2634 2.1496060e+09 0.11760046 0.023784178 -17.619450 52.523823 6611.2056 2.0801304e+09 0.11456503 0.024827330 -17.710902 52.442531 6613.1478 2.0161974e+09 0.11318405 0.023627830 -17.806400 52.357645 6615.0900 1.9447663e+09 0.11149838 0.023254302 -17.909285 52.266192 6617.0322 1.8674317e+09 0.10973804 0.023449941 -18.012171 52.174739 6618.9745 1.7810988e+09 0.10878275 0.024506628 -18.112276 52.083285 6620.9167 1.7010656e+09 0.10801376 0.025062593 -18.211351 51.991830 6622.8589 1.6276656e+09 0.10684389 0.024529388 -18.310425 51.899975 6624.8011 1.5535382e+09 0.10570245 0.025291127 -18.409500 51.804710 6626.7433 1.4915665e+09 0.10409964 0.025643875 -18.508576 51.709446 6628.6855 1.4288298e+09 0.10312408 0.025981417 -18.607651 51.616014 6630.6277 1.3706996e+09 0.10177344 0.025929849 -18.706726 51.524559 6632.5699 1.3113930e+09 0.10052337 0.026100684 -18.805801 51.433105 6634.5121 1.2547171e+09 0.099227515 0.026364200 -18.904876 51.341652 6636.4543 1.2038134e+09 0.097820745 0.026373313 -19.003951 51.250199 6638.3966 1.1549237e+09 0.096846433 0.025654366 -19.102141 51.158745 6640.3388 1.1093821e+09 0.096925768 0.025229204 -19.197406 51.067290 6642.2810 1.0575834e+09 0.096832355 0.025163194 -19.292670 50.975835 6644.2232 1.0121173e+09 0.095740215 0.025367727 -19.381504 50.890555 6646.1654 9.8312015e+08 0.094502826 0.026005757 -19.466193 50.809254 6648.1076 9.5793910e+08 0.093254159 0.027036310 -19.550882 50.727953 6650.0498 9.3592762e+08 0.092180923 0.026266639 -19.640010 50.639990 6651.9920 9.0696620e+08 0.091267537 0.027244402 -19.731464 50.548535 6653.9342 8.7537459e+08 0.090294650 0.028002643 -19.823039 50.456959 6655.8764 8.4796374e+08 0.088313319 0.027972360 -19.918304 50.361695 6657.8186 8.1275693e+08 0.086637767 0.029850711 -20.013568 50.266431 6659.7609 7.8073335e+08 0.084930214 0.031675884 -20.107279 50.172720 6661.7031 7.4991620e+08 0.083308661 0.032893034 -20.198734 50.081266 6663.6453 7.2353849e+08 0.081947070 0.032304392 -20.290188 49.989813 6665.5875 6.9967621e+08 0.081765736 0.027584523 -20.378657 49.898358 6667.5297 6.7366608e+08 0.081261214 0.027298022 -20.466301 49.806904 6669.4719 6.5105639e+08 0.080354827 0.027871030 -20.553944 49.714843 6671.4141 6.2660648e+08 0.080311015 0.026871250 -20.641588 49.619579 6673.3563 6.0542270e+08 0.079777115 0.027992116 -20.729231 49.524315 6675.2985 5.7787284e+08 0.078175545 0.030370145 -20.818912 49.431089 6677.2407 5.5455045e+08 0.076399758 0.032015987 -20.910365 49.339636 6679.1829 5.3508666e+08 0.075839200 0.030116594 -21.001819 49.248183 6681.1252 5.1388439e+08 0.076706084 0.029753375 -21.086333 49.156729 6683.0674 4.9981948e+08 0.077063617 0.031287303 -21.170166 49.065274 6685.0096 4.7932269e+08 0.076801729 0.032714949 -21.255093 48.972725 6686.9518 4.6195035e+08 0.075117628 0.034314846 -21.342749 48.877446 6688.8940 4.4351638e+08 0.072411953 0.033991554 -21.430406 48.782166 6690.8362 4.2602270e+08 0.071386677 0.033020034 -21.515530 48.689421 6692.7784 4.1262672e+08 0.070409264 0.031861409 -21.599363 48.597966 6694.7206 4.0097768e+08 0.069531784 0.030251042 -21.683196 48.506512 6696.6628 3.8960582e+08 0.068926758 0.029951177 -21.767029 48.415059 6698.6050 3.7464371e+08 0.067722647 0.031048300 -21.850861 48.323606 6700.5472 3.5696700e+08 0.066001993 0.031073626 -21.934694 48.230576 6702.4895 3.4332583e+08 0.064900762 0.033267562 -22.018527 48.135311 6704.4317 3.3457255e+08 0.064943222 0.036389523 -22.102360 48.040047 6706.3739 3.2078937e+08 0.064749081 0.039097102 -22.192211 47.937473 6708.3161 3.1030772e+08 0.064354103 0.040387781 -22.283667 47.832952 6710.2583 2.9403075e+08 0.063222536 0.040547052 -22.369481 47.732997 6712.2005 2.8070113e+08 0.061313412 0.042202223 -22.449504 47.637732 6714.1427 2.7237558e+08 0.059324077 0.047314137 -22.529527 47.542467 6716.0849 2.6005051e+08 0.057776961 0.048526439 -22.609549 47.450515 6718.0271 2.5519632e+08 0.055795234 0.049854665 -22.689571 47.359062 6719.9693 2.4610145e+08 0.054659843 0.050448897 -22.769593 47.267609 6721.9115 2.3620452e+08 0.054695677 0.050578553 -22.849614 47.176155 6723.8538 2.2971092e+08 0.052803840 0.049845099 -22.929636 47.084700 6725.7960 2.2172784e+08 0.048946951 0.041078818 -23.007293 46.990881 6727.7382 2.1714877e+08 0.047960389 0.039976925 -23.083505 46.895617 6729.6804 2.0961826e+08 0.046915250 0.040591934 -23.159717 46.800353 6731.6226 2.0033769e+08 0.045224830 0.042989101 -23.246778 46.695866 6733.5648 1.9244949e+08 0.044122481 0.046990786 -23.333880 46.591346 6735.5070 1.8622164e+08 0.044875162 0.049831663 -23.413357 46.493306 6737.4492 1.8114768e+08 0.046058588 0.055566570 -23.489568 46.398041 6739.3914 1.7643967e+08 0.046203652 0.063305588 -23.565780 46.303065 6741.3336 1.7056710e+08 0.044655525 0.066710251 -23.642003 46.211597 6743.2758 1.6243164e+08 0.040889875 0.072908309 -23.718226 46.120129 6745.2181 1.5510505e+08 0.038185509 0.078658556 -23.794444 46.026945 6747.1603 1.5001796e+08 0.033510392 0.067305987 -23.870655 45.931680 6749.1025 1.4692551e+08 0.033305552 0.072249875 -23.946866 45.836416 6751.0447 1.4098014e+08 0.030537819 0.073730564 -24.028486 45.733491 6752.9869 1.3467437e+08 0.027858316 0.072992455 -24.111232 45.628971 6754.9291 1.3014039e+08 0.026186811 0.074719355 -24.188480 45.529370 6756.8713 1.2802100e+08 0.023633357 0.076408927 -24.260881 45.434105 6758.8135 1.2686433e+08 0.024412017 0.075425623 -24.333283 45.338840 6760.7557 1.2224813e+08 0.024682656 0.077502417 -24.415069 45.235177 6762.6979 1.1783231e+08 0.029308134 0.076925009 -24.497815 45.130656 6764.6402 1.1566867e+08 0.031693294 0.079513953 -24.571911 45.031791 6766.5824 1.1236184e+08 0.032215912 0.081031055 -24.640501 44.936526 6768.5246 1.0691413e+08 0.028444330 0.082743547 -24.709092 44.841263 6770.4668 1.0135943e+08 0.024474887 0.088011842 -24.781441 44.749757 6772.4090 95686708. 0.020824659 0.092722553 -24.853842 44.658303 6774.3512 93172699. 0.017275433 0.097433265 -24.928415 44.560533 6776.2934 93009763. 0.013812392 0.10214398 -25.006805 44.451657 6778.2356 88176994. 0.010170233 0.10685469 -25.085196 44.343070 6780.1778 84519302. 0.0065597131 0.11156540 -25.163588 44.238550 6782.1200 77613145. 0.0027597077 0.11627611 -25.241979 44.134029 6784.0622 74802629. -0.00086392751 0.12098682 -25.312822 44.036637 6786.0045 74105101. -0.0043784876 0.12569753 -25.381413 43.941372 6787.9467 74352020. -0.0078572889 0.13040824 -25.451433 43.844758 6789.8889 75633670. -0.011288028 0.13511895 -25.529823 43.740236 6791.8311 76079747. -0.014801409 0.13982967 -25.608214 43.635715 6793.7733 74953533. -0.018459733 0.14454038 -25.675040 43.539058 6795.7155 69298186. -0.022564874 0.14925109 -25.739820 43.443794 6797.6577 67301636. -0.026560686 0.15396180 -25.807667 43.346444 6799.5999 65483674. -0.030775470 0.15867251 -25.886057 43.241924 6801.5421 65684527. -0.035105960 0.16338322 -25.964447 43.137404 6803.4843 63299061. -0.040327220 0.16809393 -26.038792 43.028836 6805.4265 55091147. -0.049131221 0.17280464 -26.112828 42.919959 6807.3688 48031403. -0.077159383 0.17751536 -26.186864 42.813839 6809.3110 45573377. -0.064925498 0.18222607 -26.260899 42.709318 6813.1954 47269420. -0.027581052 0.19164749 -26.391503 42.512650