# # 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 = 48.321612 km # Date (UTC) = 2014-01-07T09:14:39.565 # Date (julian) = 2456664.88518015 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6500.5837 5.8218149e+10 0.046954012 0.032459216 -19.302865 49.137632 6502.7414 5.3637260e+10 0.054757932 0.033109867 -19.412932 49.031797 6504.8991 4.9643761e+10 0.062803902 0.033760518 -19.523000 48.925963 6507.0568 4.5743274e+10 0.071085222 0.034411170 -19.629873 48.816932 6509.2145 4.2099615e+10 0.079683068 0.035061821 -19.735707 48.706864 6511.3722 3.8887219e+10 0.088709945 0.035712472 -19.835453 48.603068 6513.5299 3.6276163e+10 0.098338291 0.036363124 -19.925777 48.508982 6515.6876 3.4139638e+10 0.10861851 0.037013775 -20.016100 48.414896 6517.8453 3.2108872e+10 0.11943545 0.037664426 -20.117830 48.312170 6520.0031 2.9997726e+10 0.13067205 0.038315078 -20.223665 48.206336 6522.1608 2.7784768e+10 0.14181138 0.038959349 -20.327920 48.100501 6524.3185 2.5693225e+10 0.14783835 0.039540099 -20.429521 47.994666 6526.4762 2.3759647e+10 0.15301995 0.040167307 -20.531075 47.888785 6528.6339 2.1993925e+10 0.15788809 0.041945349 -20.628443 47.778718 6530.7916 2.0304736e+10 0.16194232 0.044936921 -20.725811 47.668650 6532.9493 1.8659836e+10 0.16632131 0.047477239 -20.825925 47.561329 6535.1070 1.7119337e+10 0.16859112 0.048177873 -20.927526 47.455495 6537.2647 1.5774204e+10 0.16999789 0.048810032 -21.024812 47.353032 6539.4224 1.4705919e+10 0.17082537 0.050154973 -21.111359 47.258958 6541.5801 1.3844903e+10 0.17009420 0.051138394 -21.197907 47.164884 6543.7379 1.3035393e+10 0.16846474 0.051575545 -21.291272 47.063401 6545.8956 1.2203272e+10 0.16631248 0.052463590 -21.388654 46.957550 6548.0533 1.1324492e+10 0.16511041 0.053683554 -21.484900 46.850572 6550.2110 1.0489564e+10 0.16376601 0.055038186 -21.578035 46.740503 6552.3687 9.7284949e+09 0.16225081 0.055493969 -21.671170 46.630435 6554.5264 9.0376369e+09 0.16044809 0.054843426 -21.768137 46.524198 6556.6841 8.4278605e+09 0.15870678 0.053912550 -21.865505 46.418363 6558.8418 7.8602826e+09 0.15661436 0.052521978 -21.960573 46.310230 6560.9995 7.3187036e+09 0.15434856 0.051373113 -22.053707 46.200163 6563.1572 6.8143352e+09 0.15266325 0.049746489 -22.144970 46.092988 6565.3149 6.4016840e+09 0.15091137 0.047960781 -22.227755 45.998914 6567.4726 6.0639206e+09 0.14945411 0.046217553 -22.310541 45.904841 6569.6304 5.7675415e+09 0.14813487 0.044893451 -22.396527 45.804612 6571.7881 5.4723956e+09 0.14686804 0.044288040 -22.485427 45.698777 6573.9458 5.1561992e+09 0.14484576 0.042898522 -22.574328 45.592260 6576.1035 4.8469690e+09 0.14299362 0.041252285 -22.663230 45.482191 6578.2612 4.5520189e+09 0.14083488 0.038237166 -22.752131 45.372122 6580.4189 4.2662464e+09 0.13854797 0.036133631 -22.844415 45.265437 6582.5766 3.9984207e+09 0.13647743 0.035136884 -22.937549 45.159602 6584.7343 3.7634833e+09 0.13419220 0.034115502 -23.022879 45.057256 6586.8920 3.5756295e+09 0.13178729 0.033159765 -23.098149 44.959407 6589.0497 3.4203533e+09 0.12950075 0.032947311 -23.173418 44.861557 6591.2074 3.2651841e+09 0.12704954 0.028967836 -23.259315 44.757482 6593.3652 3.1035757e+09 0.12516086 0.026762742 -23.348216 44.651648 6595.5229 2.9280469e+09 0.12297023 0.025677793 -23.435349 44.545813 6597.6806 2.7655438e+09 0.12115236 0.025507966 -23.520018 44.439978 6599.8383 2.6169447e+09 0.12044054 0.024980148 -23.604686 44.333909 6601.9960 2.4757751e+09 0.12023294 0.027514743 -23.689353 44.223842 6604.1537 2.3471143e+09 0.11896298 0.026162535 -23.774020 44.113775 6606.3114 2.2177217e+09 0.11866738 0.026944383 -23.858688 44.006642 6608.4691 2.0952029e+09 0.11626600 0.023719968 -23.943356 43.900807 6610.6268 1.9851009e+09 0.11337527 0.024601891 -24.024909 43.797619 6612.7845 1.8910598e+09 0.11193752 0.023734582 -24.100169 43.699782 6614.9422 1.8123847e+09 0.11065218 0.023291328 -24.175428 43.601944 6617.0999 1.7397431e+09 0.10908308 0.023472386 -24.254180 43.498710 6619.2577 1.6619664e+09 0.10818901 0.024588082 -24.334626 43.392860 6621.4154 1.5826637e+09 0.10703124 0.024951773 -24.416388 43.285695 6623.5731 1.5018001e+09 0.10508432 0.024704140 -24.501056 43.175628 6625.7308 1.4251420e+09 0.10357565 0.026269645 -24.585724 43.065560 6627.8885 1.3559471e+09 0.10143873 0.025660020 -24.666372 42.959512 6630.0462 1.2876675e+09 0.099718506 0.025928416 -24.746807 42.853677 6632.2039 1.2201604e+09 0.097544367 0.026056795 -24.827241 42.747843 6634.3616 1.1527308e+09 0.095750622 0.026353221 -24.907674 42.642008 6636.5193 1.0862337e+09 0.094144046 0.026348078 -24.985249 42.537974 6638.6770 1.0345817e+09 0.093071065 0.025642146 -25.052982 42.440136 6640.8347 9.9533853e+08 0.093601967 0.025168520 -25.120716 42.342299 6642.9925 9.5761001e+08 0.093327212 0.025192309 -25.195659 42.239921 6645.1502 9.1936287e+08 0.092338062 0.025522028 -25.276093 42.134087 6647.3079 8.7185473e+08 0.091273005 0.026599874 -25.355658 42.027383 6649.4656 8.2749341e+08 0.090320538 0.026991914 -25.431859 41.917315 6651.6233 7.8882732e+08 0.089863231 0.026961823 -25.508060 41.807248 6653.7810 7.5094605e+08 0.089228481 0.027924409 -25.584270 41.700737 6655.9387 7.1394380e+08 0.087465430 0.027998090 -25.660483 41.594887 6658.0964 6.7685963e+08 0.085954509 0.030232066 -25.736689 41.487005 6660.2541 6.4155682e+08 0.084431573 0.031856980 -25.812889 41.376937 6662.4118 6.1008016e+08 0.082897273 0.032813211 -25.889090 41.267373 6664.5695 5.8112489e+08 0.081767132 0.030122177 -25.965291 41.161538 6666.7272 5.5316871e+08 0.081383193 0.027050308 -26.041493 41.055703 6668.8850 5.2668508e+08 0.079980903 0.028253896 -26.114488 40.949868 6671.0427 5.0010901e+08 0.079836113 0.026865956 -26.186456 40.844033 6673.2004 4.7812494e+08 0.079128779 0.027758888 -26.258423 40.736527 6675.3581 4.5467632e+08 0.077104032 0.030484212 -26.330391 40.626460 6677.5158 4.3312711e+08 0.075154501 0.031624970 -26.402358 40.516532 6679.6735 4.1125438e+08 0.074776917 0.029711223 -26.474326 40.410697 6681.8312 3.9146165e+08 0.075341961 0.030295047 -26.546293 40.304863 6683.9889 3.7568538e+08 0.075364497 0.032637847 -26.612898 40.204391 6686.1466 3.6406802e+08 0.074546772 0.033846392 -26.676868 40.106553 6688.3043 3.5316125e+08 0.071901694 0.033855441 -26.740944 40.008610 6690.4620 3.3980925e+08 0.070285357 0.033062913 -26.812911 39.902776 6692.6197 3.2551679e+08 0.069348289 0.032045651 -26.884879 39.796941 6694.7775 3.0969633e+08 0.068670269 0.030171378 -26.956853 39.691096 6696.9352 2.9688710e+08 0.068151829 0.030064328 -27.028831 39.585246 6699.0929 2.8550433e+08 0.066772281 0.031504734 -27.099583 39.478177 6701.2506 2.7401421e+08 0.064885445 0.031777125 -27.167317 39.368109 6703.4083 2.6550603e+08 0.064624704 0.034696914 -27.235051 39.258042 6705.5660 2.5383033e+08 0.064563179 0.037674843 -27.306709 39.151898 6707.7237 2.4165484e+08 0.064078230 0.040083156 -27.378676 39.046064 6709.8814 2.3094896e+08 0.062879360 0.040571918 -27.453719 38.931689 6712.0391 2.1539830e+08 0.060638331 0.041902606 -27.531131 38.810732 6714.1968 2.0234859e+08 0.058384182 0.047318207 -27.603725 38.695197 6716.3545 1.8834039e+08 0.056454248 0.048923572 -27.671459 38.585130 6718.5123 1.8160242e+08 0.053966441 0.050610211 -27.739193 38.475637 6720.6700 1.7847462e+08 0.053458775 0.050342139 -27.806927 38.369802 6722.8277 1.7188130e+08 0.052486021 0.049581987 -27.874661 38.263968 6724.9854 1.6330718e+08 0.048058029 0.041698107 -27.939121 38.158133 6727.1431 1.5020647e+08 0.046222284 0.040769751 -28.002622 38.052299 6729.3008 1.4107030e+08 0.045456524 0.040844938 -28.067865 37.944723 6731.4585 1.2997467e+08 0.043448458 0.042662536 -28.135599 37.834654 6733.6162 1.2446546e+08 0.042159056 0.047269916 -28.203125 37.724793 6735.7739 1.2288437e+08 0.043273731 0.050115009 -28.266625 37.618958 6737.9316 1.1828812e+08 0.044580766 0.057103302 -28.330126 37.513123 6740.0893 1.1488550e+08 0.044342201 0.064202985 -28.396536 37.407288 6742.2470 1.0799909e+08 0.041783981 0.069212733 -28.464270 37.301454 6744.4048 1.0235607e+08 0.037409892 0.078106482 -28.533576 37.189135 6746.5625 1.0179922e+08 0.034323173 0.072447974 -28.606149 37.063342 6748.7202 97606773. 0.032602599 0.070805767 -28.676385 36.942693 6750.8779 94298023. 0.029758736 0.073503153 -28.739895 36.836843 6753.0356 91260660. 0.026982570 0.073092474 -28.803405 36.730992 6755.1933 84059309. 0.024966613 0.074520595 -28.866906 36.625156 6757.3510 80613543. 0.022831400 0.075674834 -28.930407 36.519322 6759.5087 77968260. 0.023740542 0.075942717 -28.991647 36.413487 6761.6664 78825890. 0.026362477 0.078023285 -29.050916 36.307652 6763.8241 78869964. 0.030269222 0.078947688 -29.112470 36.198387 6765.9818 78168388. 0.032114021 0.079710433 -29.185044 36.072591 6768.1396 74783384. 0.028842907 0.081358172 -29.256221 35.948891 6770.2973 71236846. 0.024107692 0.087600692 -29.315488 35.843056 6772.4550 66067729. 0.019798478 0.092834084 -29.374755 35.737222 6774.6127 62534857. 0.015406811 0.098067476 -29.443906 35.620155 6776.7704 61192821. 0.010960479 0.10330087 -29.516481 35.499199 6778.9281 59223882. 0.0061659576 0.10853426 -29.580061 35.388463 6781.0858 61679894. 0.0013583116 0.11376765 -29.639328 35.282628 6783.2435 58008883. -0.0050741012 0.11900105 -29.698595 35.175465 6785.4012 53808346. -0.015046503 0.12423444 -29.757863 35.065398 6787.5589 50182125. -0.052901646 0.12946783 -29.817130 34.955331 6789.7166 46017128. -0.032503854 0.13470122 -29.884455 34.834902 6791.8743 47830667. 0.026010528 0.13993461 -29.952190 34.713946