# # 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 = 49.158578 km # Date (UTC) = 2015-12-10T09:04:08.739 # Date (julian) = 2457366.87787892 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.0447 7.5267377e+10 0.042261784 0.032296702 -14.516742 52.863707 6501.9364 8.4947034e+10 0.052480272 0.032867132 -14.619011 52.787830 6503.8281 7.4175016e+10 0.060526079 0.033437561 -14.719626 52.710299 6505.7198 6.1726573e+10 0.068120599 0.034007991 -14.818596 52.631122 6507.6114 5.4362924e+10 0.076551474 0.034578420 -14.917566 52.551946 6509.5031 4.7727571e+10 0.085048097 0.035148850 -15.014985 52.474321 6511.3948 4.3736187e+10 0.094426403 0.035719280 -15.110656 52.398444 6513.2865 4.0887548e+10 0.10449269 0.036289709 -15.206327 52.322567 6515.1781 3.8739884e+10 0.11514524 0.036860139 -15.303451 52.246686 6517.0698 3.6824306e+10 0.12607828 0.037430569 -15.402435 52.170799 6518.9615 3.4503655e+10 0.13710603 0.038000998 -15.501418 52.094912 6520.8532 3.2141802e+10 0.14831861 0.038571428 -15.597703 52.017683 6522.7448 2.9902693e+10 0.15761249 0.039112298 -15.690074 51.938508 6524.6365 2.8296247e+10 0.16429181 0.039653087 -15.782446 51.859333 6526.5282 2.6005411e+10 0.16890039 0.040221839 -15.876061 51.781401 6528.4199 2.4226575e+10 0.17342969 0.041775568 -15.971732 51.705524 6530.3115 2.2970606e+10 0.17756265 0.044264856 -16.067403 51.629647 6532.2032 2.1497766e+10 0.18056091 0.046853962 -16.161933 51.552630 6534.0949 2.0080063e+10 0.18102959 0.047971103 -16.254305 51.473454 6535.9866 1.9070206e+10 0.17975445 0.047796326 -16.346677 51.394277 6537.8782 1.7653218e+10 0.18003698 0.049099280 -16.442681 51.311988 6539.7699 1.5762118e+10 0.17895375 0.050575599 -16.546601 51.222913 6541.6616 1.3899854e+10 0.17644101 0.051111979 -16.650522 51.133838 6543.5533 1.1797700e+10 0.17445439 0.051527102 -16.745242 51.052941 6545.4449 1.0939127e+10 0.17277123 0.052459553 -16.834326 50.977054 6547.3366 1.0661751e+10 0.17105296 0.053415376 -16.923410 50.901167 6549.2283 1.0733355e+10 0.16864167 0.054198934 -17.012488 50.823342 6551.1200 1.0195916e+10 0.16675987 0.055277863 -17.101561 50.744167 6553.0116 9.2989155e+09 0.16551655 0.055329212 -17.190635 50.664992 6554.9033 8.6076498e+09 0.16374745 0.054851336 -17.279708 50.585816 6556.7950 8.2427004e+09 0.16121922 0.053896246 -17.368780 50.506640 6558.6867 8.0617940e+09 0.15834519 0.052654174 -17.457853 50.427463 6560.5783 7.0834598e+09 0.15628480 0.051752853 -17.546926 50.350025 6562.4700 6.3669575e+09 0.15419392 0.050432658 -17.636000 50.274148 6564.3617 6.0116196e+09 0.15134094 0.048607675 -17.725073 50.198271 6566.2534 6.1979566e+09 0.14796705 0.047039551 -17.812516 50.120754 6568.1450 6.1360138e+09 0.14550574 0.045638327 -17.898302 50.041567 6570.0367 5.5571062e+09 0.14392588 0.044902296 -17.984087 49.962380 6571.9284 5.0252125e+09 0.14194624 0.044249711 -18.068334 49.883199 6573.8201 4.6656431e+09 0.13907282 0.042999391 -18.150809 49.804023 6575.7117 4.6240719e+09 0.13594797 0.041660599 -18.233284 49.724848 6577.6034 4.7170119e+09 0.13261144 0.039272538 -18.317189 49.645672 6579.4951 4.3791406e+09 0.13003079 0.036798319 -18.402963 49.566496 6581.3868 4.1298975e+09 0.12780345 0.035479488 -18.488737 49.487320 6583.2785 3.6437857e+09 0.12672115 0.034880727 -18.573183 49.408144 6585.1701 3.1544676e+09 0.12592631 0.033834762 -18.655658 49.328968 6587.0618 2.9290826e+09 0.12452064 0.033172062 -18.738133 49.249793 6588.9535 2.6704505e+09 0.12328586 0.033061514 -18.820612 49.171838 6590.8452 2.8197983e+09 0.12002081 0.029489954 -18.903098 49.095951 6592.7368 2.8679133e+09 0.11738422 0.027357843 -18.985584 49.020065 6594.6285 2.6075795e+09 0.11564136 0.025827507 -19.066944 48.943058 6596.5202 2.3517837e+09 0.11372060 0.025724909 -19.146119 48.863882 6598.4119 2.1580348e+09 0.11234360 0.025210533 -19.225295 48.784705 6600.3035 2.1389897e+09 0.11134340 0.025613869 -19.307531 48.702470 6602.1952 2.1026639e+09 0.11025497 0.027350056 -19.396605 48.613396 6604.0869 1.9472172e+09 0.10893240 0.026122861 -19.485679 48.524323 6605.9786 1.8982042e+09 0.10804619 0.027485970 -19.568669 48.441333 6607.8702 1.8520148e+09 0.10549591 0.023988625 -19.647845 48.362156 6609.7619 1.7259659e+09 0.10270115 0.023932252 -19.727021 48.282980 6611.6536 1.4003752e+09 0.10176185 0.024541667 -19.806203 48.203797 6613.5453 1.1876220e+09 0.10195205 0.023773645 -19.885389 48.124610 6615.4369 1.2094672e+09 0.099560610 0.023264975 -19.964575 48.045423 6617.3286 1.2112649e+09 0.097792939 0.023548196 -20.041932 47.966243 6619.2203 1.2479810e+09 0.096192317 0.024579064 -20.117809 47.887068 6621.1120 1.1458405e+09 0.095758225 0.025052339 -20.193686 47.807893 6623.0036 1.0878633e+09 0.094683631 0.024493170 -20.271283 47.728717 6624.8953 1.1557818e+09 0.092644755 0.025341561 -20.350459 47.649540 6626.7870 1.0461820e+09 0.091482478 0.025588220 -20.429635 47.570364 6628.6787 9.3486982e+08 0.091225009 0.025978635 -20.505576 47.491188 6630.5703 8.3892664e+08 0.090606665 0.025929707 -20.578155 47.412013 6632.4620 7.9386039e+08 0.089510138 0.026087743 -20.650733 47.332838 6634.3537 8.0642636e+08 0.087786485 0.026352642 -20.729179 47.249119 6636.2454 7.9285472e+08 0.086300591 0.026454472 -20.814541 47.160044 6638.1370 7.4359318e+08 0.085669848 0.025665672 -20.899904 47.070969 6640.0287 7.0631868e+08 0.085732443 0.025267140 -20.975499 46.989455 6641.9204 7.0741914e+08 0.085439065 0.025151426 -21.048087 46.910269 6643.8121 6.6278361e+08 0.084717589 0.025315229 -21.120674 46.831083 6645.7037 6.4893338e+08 0.083642839 0.025781355 -21.193255 46.751904 6647.5954 6.2063112e+08 0.082672097 0.026751263 -21.265833 46.672728 6649.4871 5.8559545e+08 0.081804453 0.026962272 -21.338412 46.593551 6651.3788 5.6816087e+08 0.081214599 0.026774426 -21.410989 46.514376 6653.2704 5.4898917e+08 0.080630087 0.027663733 -21.483567 46.435201 6655.1621 5.3847933e+08 0.079179396 0.027677198 -21.556145 46.356026 6657.0538 5.1973685e+08 0.077289474 0.028963495 -21.634813 46.270205 6658.9455 4.9534603e+08 0.075765026 0.031737862 -21.716465 46.181130 6660.8371 4.6769250e+08 0.074632977 0.032386909 -21.798116 46.092055 6662.7288 4.6300618e+08 0.073389378 0.032635369 -21.867690 46.012640 6664.6205 4.4676990e+08 0.072626733 0.029935776 -21.936978 45.933452 6666.5122 4.3059934e+08 0.072564581 0.027008395 -22.006267 45.854265 6668.4038 4.1592896e+08 0.071769334 0.027828136 -22.075546 45.775089 6670.2955 4.0010776e+08 0.071569580 0.027191729 -22.144825 45.695914 6672.1872 3.8600449e+08 0.071325604 0.026988093 -22.214103 45.616739 6674.0789 3.7585630e+08 0.070492902 0.029021311 -22.291306 45.528507 6675.9705 3.6385570e+08 0.068417583 0.031657281 -22.369247 45.439432 6677.8622 3.5214214e+08 0.067421498 0.031132502 -22.444550 45.352540 6679.7539 3.3986941e+08 0.067319950 0.029644797 -22.510529 45.273365 6681.6456 3.2440313e+08 0.067972769 0.030152619 -22.576509 45.194190 6683.5372 3.0897980e+08 0.068225585 0.031975900 -22.644752 45.112438 6685.4289 2.9347163e+08 0.067830871 0.033157869 -22.722693 45.019652 6687.3206 2.8013384e+08 0.065925231 0.034164108 -22.800634 44.926866 6689.2123 2.6696805e+08 0.063385586 0.033824959 -22.872659 44.840810 6691.1039 2.5576779e+08 0.062408254 0.032976742 -22.938648 44.761623 6692.9956 2.4456434e+08 0.061515117 0.031609190 -23.004637 44.682436 6694.8873 2.3974673e+08 0.060691430 0.030017453 -23.070622 44.603255 6696.7790 2.3734800e+08 0.060004758 0.029999427 -23.136601 44.524080 6698.6706 2.3425514e+08 0.058719810 0.031138338 -23.202580 44.444905 6700.5623 2.2726287e+08 0.056955419 0.031084798 -23.270524 44.361444 6702.4540 2.1742140e+08 0.055826555 0.033239238 -23.341042 44.272369 6704.3457 2.0483910e+08 0.055854483 0.036347290 -23.411559 44.183294 6706.2373 1.9348975e+08 0.055578725 0.038859464 -23.484817 44.094220 6708.1290 1.8664276e+08 0.055127415 0.040184063 -23.559045 44.005145 6710.0207 1.7617583e+08 0.053890119 0.040500543 -23.632764 43.916506 6711.9124 1.7088254e+08 0.051849678 0.041730247 -23.695445 43.837331 6713.8040 1.6287256e+08 0.049810516 0.046594641 -23.758126 43.758155 6715.6957 1.5573109e+08 0.048130880 0.048090139 -23.820923 43.678834 6717.5874 1.5204708e+08 0.046221307 0.049837936 -23.891426 43.589777 6719.4791 1.4296836e+08 0.044413806 0.050914698 -23.961943 43.500702 6721.3707 1.3759237e+08 0.044628773 0.050415603 -24.029967 43.414777 6723.2624 1.3399566e+08 0.043413715 0.049515294 -24.092657 43.335592 6725.1541 1.3093609e+08 0.039510376 0.041479771 -24.155346 43.256406 6727.0458 1.2732272e+08 0.038096723 0.040899421 -24.220287 43.174375 6728.9374 1.2162509e+08 0.037846703 0.040956752 -24.290804 43.085301 6730.8291 1.1601978e+08 0.036232586 0.041515714 -24.361320 42.996226 6732.7208 1.1308838e+08 0.035221468 0.043872903 -24.429636 42.904949 6734.6125 1.1020706e+08 0.035079373 0.049316750 -24.496442 42.812163 6736.5041 1.0460336e+08 0.036657563 0.052260919 -24.563248 42.719376 6738.3958 98198321. 0.037582699 0.059500209 -24.626346 42.638826 6740.2875 96188128. 0.037417255 0.064541481 -24.689027 42.559651 6742.1792 95097708. 0.035586042 0.069047309 -24.751708 42.480475 6744.0708 91370902. 0.031585363 0.077848202 -24.817968 42.392710 6745.9625 86945829. 0.030939930 0.078971518 -24.884774 42.303635 6747.8542 84186575. 0.027132331 0.067067098 -24.951580 42.214561 6749.7459 82633639. 0.025579759 0.072073716 -25.018386 42.125487 6751.6375 81135521. 0.023474239 0.073981225 -25.085191 42.036414 6753.5292 77272868. 0.022126134 0.074689914 -25.150220 41.947339 6755.4209 69747493. 0.020107008 0.074420814 -25.213315 41.858264 6757.3126 63765631. 0.018084383 0.075791515 -25.276409 41.769188 6759.2042 59330488. 0.018692820 0.075869240 -25.342423 41.680103 6761.0959 57155661. 0.018982195 0.077976149 -25.409238 41.591015 6762.9876 59099542. 0.023668938 0.076457787 -25.475081 41.502825 6764.8793 60667604. 0.025287938 0.079525409 -25.531164 41.423650 6766.7709 58147899. 0.023683869 0.081457621 -25.587246 41.344474 6768.6626 55523354. 0.016466419 0.083240260 -25.643966 41.264712 6770.5543 49170554. 0.0037574163 0.088224091 -25.710772 41.175637 6772.4460 46751979. -0.045850904 0.092812235 -25.777578 41.086562 6774.3376 46792106. -0.012362451 0.097400379 -25.843029 40.997487 6776.2293 48685153. 0.060960406 0.10198852 -25.906123 40.908414