# # 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 = 51.739149 km # Date (UTC) = 2015-12-27T09:45:07.551 # Date (julian) = 2457383.90633739 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6505.9760 5.3475632e+10 0.074517349 0.034085261 110.58505 29.085969 6508.0925 4.8589080e+10 0.084588947 0.034723479 110.64283 28.974535 6510.2090 4.3867631e+10 0.094766816 0.035361696 110.69451 28.874877 6512.3254 3.9864535e+10 0.10520984 0.035999914 110.74618 28.775219 6514.4419 3.6662195e+10 0.11601635 0.036638131 110.79658 28.675561 6516.5584 3.3670627e+10 0.12703040 0.037276349 110.84457 28.575903 6518.6749 3.0950029e+10 0.13827279 0.037914566 110.89255 28.476246 6520.7913 2.8411110e+10 0.14970506 0.038552784 110.94289 28.376579 6522.9078 2.6067640e+10 0.15882106 0.039154974 110.99457 28.276908 6525.0243 2.3966513e+10 0.16531705 0.039779442 111.04625 28.177237 6527.1408 2.2068941e+10 0.16982685 0.040818670 111.09450 28.074154 6529.2572 2.0355848e+10 0.17309450 0.042645553 111.14248 27.970805 6531.3737 1.8764919e+10 0.17617912 0.045772633 111.19047 27.868261 6533.4902 1.7322640e+10 0.17872392 0.047727905 111.23845 27.768604 6535.6067 1.5980110e+10 0.17900088 0.047961126 111.28643 27.668946 6537.7231 1.4753037e+10 0.17976214 0.049026157 111.33442 27.569288 6539.8396 1.3638617e+10 0.17964243 0.050659968 111.38240 27.469630 6541.9561 1.2614531e+10 0.17733116 0.051016475 111.43039 27.369972 6544.0726 1.1667135e+10 0.17470833 0.051703220 111.47837 27.270303 6546.1890 1.0817877e+10 0.17200085 0.052620082 111.52636 27.170632 6548.3055 1.0044694e+10 0.16996866 0.053758886 111.57435 27.070961 6550.4220 9.3299741e+09 0.16799777 0.055091024 111.62233 26.971303 6552.5385 8.7135858e+09 0.16606316 0.055451233 111.67032 26.871645 6554.6549 8.1256146e+09 0.16376772 0.054846124 111.71830 26.771987 6556.7714 7.6197118e+09 0.16130155 0.053899712 111.76629 26.672330 6558.8879 7.1475115e+09 0.15843855 0.052482705 111.81427 26.572672 6561.0044 6.7077699e+09 0.15544018 0.051370525 111.86225 26.473014 6563.1209 6.3359565e+09 0.15290833 0.049788571 111.91024 26.373356 6565.2373 5.9841242e+09 0.15032953 0.048048911 111.95822 26.273698 6567.3538 5.6273686e+09 0.14805070 0.046318040 112.00799 26.166025 6569.4703 5.2566739e+09 0.14597782 0.044883032 112.05783 26.058045 6571.5868 4.9030151e+09 0.14415350 0.044343022 112.10664 25.954684 6573.7032 4.5981768e+09 0.14165622 0.043093159 112.15462 25.855026 6575.8197 4.3382127e+09 0.13910430 0.041552289 112.20260 25.755367 6577.9362 4.0970318e+09 0.13640156 0.038749864 112.24746 25.655709 6580.0527 3.8723348e+09 0.13348830 0.036472094 112.29176 25.556051 6582.1691 3.6700937e+09 0.13056584 0.035247770 112.33655 25.456393 6584.2856 3.4823035e+09 0.12765822 0.034359932 112.38454 25.356735 6586.4021 3.3061208e+09 0.12483262 0.033166099 112.43252 25.257077 6588.5186 3.1331585e+09 0.12220512 0.033206758 112.47893 25.157414 6590.6350 2.9676248e+09 0.11908912 0.029880812 112.52323 25.057743 6592.7515 2.8193827e+09 0.11638365 0.027343585 112.56753 24.958071 6594.8680 2.6800962e+09 0.11391890 0.025696043 112.61182 24.861061 6596.9845 2.5546965e+09 0.11149126 0.025722798 112.65611 24.765094 6599.1009 2.4328581e+09 0.10984031 0.024935801 112.70040 24.669094 6601.2174 2.3168432e+09 0.10993599 0.027148076 112.74469 24.569435 6603.3339 2.2118563e+09 0.10887748 0.026465616 112.78899 24.469777 6605.4504 2.1056954e+09 0.10835803 0.027042857 112.83494 24.366383 6607.5668 1.9923772e+09 0.10678453 0.024587713 112.88477 24.254266 6609.6833 1.8730398e+09 0.10404934 0.023908906 112.93460 24.142149 6611.7998 1.7617895e+09 0.10173093 0.024448430 112.97949 24.044432 6613.9163 1.6652996e+09 0.10087881 0.023909768 113.02378 23.948466 6616.0327 1.5852809e+09 0.099386694 0.023287437 113.06808 23.851823 6618.1492 1.5095231e+09 0.098820022 0.023883467 113.11238 23.752152 6620.2657 1.4345094e+09 0.098117611 0.024852814 113.15668 23.652481 6622.3822 1.3701862e+09 0.096740792 0.024656274 113.20097 23.552816 6624.4986 1.3099221e+09 0.094986650 0.025129227 113.24527 23.453157 6626.6151 1.2533989e+09 0.093218142 0.025807195 113.28956 23.353499 6628.7316 1.1974802e+09 0.091778920 0.026000126 113.33385 23.256662 6630.8481 1.1489017e+09 0.089954238 0.025930392 113.37814 23.160695 6632.9645 1.1053833e+09 0.088403731 0.026148001 113.42251 23.063840 6635.0810 1.0585296e+09 0.086713136 0.026411937 113.46819 22.951723 6637.1975 1.0043334e+09 0.085134962 0.026064688 113.51386 22.839606 6639.3140 9.4874766e+08 0.084364669 0.025515857 113.55865 22.737926 6641.4304 9.0170645e+08 0.085004807 0.025149762 113.60295 22.641946 6643.5469 8.6469850e+08 0.084502759 0.025275196 113.64725 22.545967 6645.6634 8.3188455e+08 0.083730181 0.025762458 113.68808 22.446537 6647.7799 8.0145806e+08 0.082897829 0.026848382 113.72868 22.346879 6649.8963 7.7145605e+08 0.082257455 0.026398127 113.77139 22.245322 6652.0128 7.3508046e+08 0.081903952 0.027254047 113.82122 22.137358 6654.1293 6.9412903e+08 0.081430111 0.027981146 113.87105 22.029393 6656.2458 6.5621326e+08 0.079874556 0.028239126 113.91331 21.931271 6658.3622 6.2568596e+08 0.078581459 0.030703522 113.95391 21.835304 6660.4787 6.0541647e+08 0.077256659 0.032061128 113.99451 21.738927 6662.5952 5.8997351e+08 0.075938534 0.032710333 114.03511 21.639269 6664.7117 5.6924275e+08 0.075115898 0.029602126 114.07571 21.539610 6666.8281 5.5048721e+08 0.074839528 0.027069969 114.12003 21.436607 6668.9446 5.2507687e+08 0.073668952 0.028306694 114.16986 21.328626 6671.0611 4.9784441e+08 0.073839379 0.026866219 114.21967 21.220686 6673.1776 4.7418911e+08 0.073443583 0.027724785 114.26036 21.124607 6675.2940 4.5562337e+08 0.071704848 0.030361560 114.30096 21.028640 6677.4105 4.4303060e+08 0.069858187 0.031774621 114.34301 20.928074 6679.5270 4.2531117e+08 0.069599362 0.029832286 114.38869 20.815958 6681.6435 4.0721800e+08 0.070421393 0.030151019 114.43436 20.703842 6683.7599 3.8583385e+08 0.070738430 0.032302290 114.47559 20.605880 6685.8764 3.6930177e+08 0.070296747 0.033630555 114.51619 20.509913 6687.9929 3.5693516e+08 0.068038229 0.033789152 114.55764 20.411939 6690.1094 3.4155339e+08 0.066289587 0.033103330 114.60332 20.303974 6692.2258 3.3117377e+08 0.065409408 0.032503066 114.64900 20.196009 6694.3423 3.1622102e+08 0.064764379 0.030781243 114.69083 20.097142 6696.4588 3.0251879e+08 0.064670846 0.029866407 114.73143 20.001163 6698.5753 2.9159968e+08 0.063742285 0.031007446 114.77208 19.904581 6700.6917 2.8039168e+08 0.062140996 0.031180808 114.81361 19.796617 6702.8082 2.7025143e+08 0.061612050 0.033522101 114.85514 19.688652 6704.9247 2.5906022e+08 0.061923342 0.036631630 114.89607 19.588390 6707.0412 2.4841692e+08 0.061653242 0.040180928 114.93667 19.492423 6709.1577 2.3792810e+08 0.061115559 0.041032270 114.97727 19.396456 6711.2741 2.2903677e+08 0.059416697 0.041004112 115.02260 19.289298 6713.3906 2.1783949e+08 0.057497521 0.045099344 115.06828 19.181333 6715.5071 2.0908664e+08 0.055724373 0.047897211 115.11178 19.073368 6717.6236 1.9936250e+08 0.053780920 0.049835699 115.15331 18.965405 6719.7400 1.8877137e+08 0.052379741 0.050666759 115.19473 18.858836 6721.8565 1.7763409e+08 0.052653207 0.050561967 115.23533 18.762869 6723.9730 1.7151541e+08 0.050762770 0.049911590 115.27593 18.666903 6726.0895 1.6917653e+08 0.046911708 0.040952174 115.31691 18.566045 6728.2059 1.6612479e+08 0.046263922 0.039919968 115.35844 18.458064 6730.3224 1.6285323e+08 0.044843921 0.040820957 115.39999 18.350084 6732.4389 1.5587633e+08 0.043456305 0.043821005 115.44564 18.242118 6734.5554 1.4906872e+08 0.043128075 0.049320185 115.49132 18.134153 6736.6718 1.4359943e+08 0.044926936 0.052894899 115.53454 18.026188 6738.7883 1.3621759e+08 0.045934634 0.061661075 115.57607 17.918224 6740.9048 1.2823239e+08 0.045114367 0.065596024 115.61835 17.810259 6743.0213 1.1820752e+08 0.041841926 0.071190833 115.66403 17.702294 6745.1377 1.1236137e+08 0.038828004 0.078624788 115.70971 17.594330 6747.2542 1.1046416e+08 0.034398430 0.067273648 115.74859 17.495659 6749.3707 1.1273311e+08 0.033628858 0.072176440 115.78550 17.399692 6751.4872 1.0950703e+08 0.030659556 0.073917644 115.82271 17.302941 6753.6036 1.0184606e+08 0.028853248 0.074930755 115.86424 17.194976 6755.7201 96950251. 0.026747831 0.074289624 115.90576 17.087012 6757.8366 91926080. 0.025787774 0.074201248 115.94729 16.979047 6759.9531 92783218. 0.026563608 0.076049943 115.98881 16.871083 6762.0695 86992917. 0.030406759 0.077938680 116.03034 16.764152 6764.1860 82700483. 0.033481669 0.079492197 116.07186 16.660340 6766.3025 79243115. 0.034812659 0.080397974 116.11339 16.556528 6768.4190 76939806. 0.031288665 0.082363543 116.15492 16.449211 6770.5354 75375491. 0.027132567 0.088178367 116.19645 16.341230 6772.6519 75013664. 0.023368740 0.093311751 116.23798 16.233257 6774.7684 74936427. 0.019602026 0.098445134 116.27950 16.125292 6776.8849 71698887. 0.015847537 0.10357852 116.32103 16.017430 6779.0013 69288670. 0.012085890 0.10871190 116.36255 15.913617 6781.1178 62196330. 0.0083372512 0.11384528 116.40408 15.809805 6783.2343 58735127. 0.0045555621 0.11897867 116.44926 15.693921 6785.3508 55929927. 0.00071860010 0.12411205 116.49672 15.570530 6787.4672 54283507. -0.0032175345 0.12924543 116.54115 15.454998 6789.5837 52639864. -0.0078052078 0.13437882 116.58268 15.347033 6791.7002 48548052. -0.016505684 0.13951220 116.62421 15.239489 6793.8167 46580128. -0.016501917 0.14464558 116.66573 15.135677 6795.9331 45884296. -0.011427287 0.14977897 116.70726 15.031865