# # 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 = 45.937489 km # Date (UTC) = 2013-11-26T10:24:34.995 # Date (julian) = 2456622.93373836 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6498.9462 5.6537599e+10 0.045106644 0.031965428 -32.732180 57.537497 6501.0259 5.2983803e+10 0.051266918 0.032592563 -32.879072 57.443648 6503.1056 4.9748950e+10 0.057550325 0.033219698 -33.025965 57.349800 6505.1853 4.6806015e+10 0.064084000 0.033846833 -33.172859 57.255951 6507.2651 4.4175369e+10 0.071000471 0.034473968 -33.319753 57.162103 6509.3448 4.1997369e+10 0.078476169 0.035101103 -33.466647 57.068254 6511.4245 3.9886327e+10 0.086541397 0.035728238 -33.613540 56.974406 6513.5042 3.7713389e+10 0.095222481 0.036355373 -33.763817 56.876813 6515.5839 3.5102690e+10 0.10433684 0.036982508 -33.927037 56.764890 6517.6637 3.2394570e+10 0.11395814 0.037609643 -34.088718 56.654103 6519.7434 2.9810846e+10 0.12419575 0.038236778 -34.227449 56.560255 6521.8231 2.7608439e+10 0.13524900 0.038863913 -34.366181 56.466407 6523.9028 2.5817555e+10 0.14164925 0.039402880 -34.504913 56.370060 6525.9826 2.4098020e+10 0.14703468 0.039670077 -34.643646 56.272130 6528.0623 2.2440753e+10 0.15372789 0.041491897 -34.781720 56.174859 6530.1420 2.0900689e+10 0.15944784 0.044027508 -34.916374 56.081010 6532.2217 1.9456113e+10 0.16428922 0.046869426 -35.051027 55.987162 6534.3015 1.8153171e+10 0.16755745 0.048028886 -35.185679 55.890414 6536.3812 1.6967214e+10 0.16923590 0.048131552 -35.320331 55.792486 6538.4609 1.5863960e+10 0.17087942 0.049381116 -35.453928 55.695614 6540.5406 1.4849034e+10 0.17074660 0.051109508 -35.584521 55.601752 6542.6203 1.3886964e+10 0.16886926 0.051237757 -35.715115 55.507889 6544.7001 1.2966563e+10 0.16732818 0.052212259 -35.845691 55.410734 6546.7798 1.2108194e+10 0.16556425 0.053106171 -35.976263 55.312805 6548.8595 1.1292480e+10 0.16374703 0.053924327 -36.106834 55.214875 6550.9392 1.0549467e+10 0.16249885 0.055220537 -36.237407 55.116945 6553.0190 9.8568519e+09 0.16170187 0.055325534 -36.367979 55.019015 6555.0987 9.1953591e+09 0.16040801 0.054770444 -36.494845 54.921087 6557.1784 8.5810470e+09 0.15876618 0.053754279 -36.621336 54.823159 6559.2581 8.0086244e+09 0.15668779 0.052358046 -36.745962 54.725230 6561.3379 7.4774162e+09 0.15462396 0.051206193 -36.868375 54.627300 6563.4176 6.9979141e+09 0.15273285 0.049445325 -36.990787 54.529371 6565.4973 6.5546191e+09 0.15102610 0.047753705 -37.113198 54.431442 6567.5770 6.1472165e+09 0.14968505 0.046129299 -37.235610 54.333514 6569.6567 5.7793788e+09 0.14835956 0.044895169 -37.358021 54.235585 6571.7365 5.4305748e+09 0.14697818 0.044302131 -37.480432 54.137655 6573.8162 5.1050074e+09 0.14484038 0.043002506 -37.602414 54.039725 6575.8959 4.8023172e+09 0.14269299 0.041475822 -37.720746 53.941797 6577.9756 4.5281248e+09 0.14025634 0.038687879 -37.839078 53.843869 6580.0554 4.2642483e+09 0.13748670 0.036469590 -37.957408 53.745939 6582.1351 4.0184589e+09 0.13475865 0.035257034 -38.075738 53.648010 6584.2148 3.7855853e+09 0.13228407 0.034398497 -38.194071 53.550077 6586.2945 3.5695230e+09 0.13029568 0.033167489 -38.312421 53.452134 6588.3743 3.3677451e+09 0.12898317 0.033254947 -38.430770 53.354191 6590.4540 3.1818594e+09 0.12713165 0.030217598 -38.546033 53.256258 6592.5337 3.0130203e+09 0.12517228 0.027555140 -38.660285 53.158329 6594.6134 2.8503232e+09 0.12309673 0.025835783 -38.773302 53.059166 6596.6931 2.7020711e+09 0.12069043 0.025724122 -38.883471 52.957157 6598.7729 2.5535827e+09 0.11895255 0.025038170 -38.993640 52.855147 6600.8526 2.4146830e+09 0.11889084 0.026742647 -39.107285 52.756611 6602.9323 2.2895050e+09 0.11795435 0.026721033 -39.221537 52.658682 6605.0120 2.1650856e+09 0.11712173 0.026675143 -39.334153 52.560752 6607.0918 2.0566734e+09 0.11567096 0.025525801 -39.444324 52.462824 6609.1715 1.9449223e+09 0.11252455 0.023756870 -39.554494 52.364896 6611.2512 1.8282193e+09 0.10965693 0.024798260 -39.675188 52.253673 6613.3309 1.7173777e+09 0.10852875 0.023695010 -39.796435 52.141751 6615.4107 1.6075182e+09 0.10702372 0.023264166 -39.908758 52.037815 6617.4904 1.5189233e+09 0.10566848 0.023601832 -40.018929 51.935806 6619.5701 1.4420046e+09 0.10455981 0.024663470 -40.127651 51.835245 6621.6498 1.3715846e+09 0.10301731 0.024874060 -40.233740 51.737316 6623.7295 1.3090723e+09 0.10067009 0.024762111 -40.339829 51.639388 6625.8093 1.2450963e+09 0.098932578 0.026363305 -40.442230 51.537770 6627.8890 1.1847041e+09 0.096614787 0.025660214 -40.544239 51.435760 6629.9687 1.1284509e+09 0.094936638 0.025933958 -40.646249 51.335601 6632.0484 1.0720276e+09 0.093094596 0.026038153 -40.748258 51.237671 6634.1282 1.0195172e+09 0.091777647 0.026336191 -40.850267 51.139718 6636.2079 9.6951610e+08 0.090544156 0.026469023 -40.952292 51.037706 6638.2876 9.1876384e+08 0.089754581 0.025659112 -41.054317 50.935681 6640.3673 8.7619441e+08 0.089976614 0.025225709 -41.156333 50.835919 6642.4471 8.3521420e+08 0.089943830 0.025169990 -41.258343 50.737990 6644.5268 7.9591265e+08 0.088997175 0.025400539 -41.359939 50.639647 6646.6065 7.6253564e+08 0.087903285 0.026234091 -41.457868 50.537638 6648.6862 7.2500993e+08 0.086800182 0.027423643 -41.555798 50.435628 6650.7659 6.9002014e+08 0.086331505 0.026430583 -41.653728 50.336274 6652.8457 6.5689499e+08 0.085905782 0.027483198 -41.751657 50.238344 6654.9254 6.2304763e+08 0.084767132 0.027642001 -41.849587 50.139599 6657.0051 5.9527932e+08 0.082785589 0.028907043 -41.947515 50.037589 6659.0848 5.6726826e+08 0.081190140 0.031816902 -42.045443 49.935580 6661.1646 5.4308562e+08 0.079775971 0.032618763 -42.140315 49.836627 6663.2443 5.2408430e+08 0.078373738 0.032415516 -42.234164 49.738697 6665.3240 5.0187399e+08 0.077754628 0.028016236 -42.328013 49.639549 6667.4037 4.8264822e+08 0.076997897 0.027251754 -42.421861 49.537539 6669.4835 4.6198547e+08 0.075835649 0.027859164 -42.515709 49.435530 6671.5632 4.4073243e+08 0.075542862 0.026873374 -42.620925 49.321165 6673.6429 4.1778884e+08 0.074742179 0.028420718 -42.728183 49.204580 6675.7226 3.9755342e+08 0.072616269 0.031182441 -42.823139 49.101118 6677.8023 3.7769292e+08 0.071362857 0.031217603 -42.912908 49.003190 6679.8821 3.5922507e+08 0.071507100 0.029538871 -43.003707 48.904231 6681.9618 3.4152390e+08 0.072356447 0.030395228 -43.097556 48.802221 6684.0415 3.2423882e+08 0.072643775 0.032656198 -43.191404 48.700212 6686.1212 3.1345951e+08 0.071973140 0.033831621 -43.281993 48.598190 6688.2010 3.0457531e+08 0.069420038 0.033831579 -43.371775 48.496165 6690.2807 2.9513204e+08 0.067618442 0.033083697 -43.460118 48.395579 6692.3604 2.8234326e+08 0.066555083 0.032346813 -43.545806 48.297649 6694.4401 2.7233755e+08 0.065593756 0.030644165 -43.631493 48.199720 6696.5199 2.5730294e+08 0.065177429 0.029891773 -43.732410 48.084987 6698.5996 2.4156524e+08 0.063978147 0.031040801 -43.835005 47.968402 6700.6793 2.2879142e+08 0.062062438 0.031171572 -43.924812 47.862842 6702.7590 2.1676863e+08 0.061127457 0.033482811 -44.010499 47.760833 6704.8387 2.0997058e+08 0.060970620 0.036589420 -44.096187 47.658823 6706.9185 2.0083509e+08 0.060278607 0.040044922 -44.181874 47.556814 6708.9982 1.8971644e+08 0.059352658 0.041130571 -44.267562 47.454805 6711.0779 1.8039356e+08 0.057279498 0.040780875 -44.359730 47.344322 6713.1576 1.7459280e+08 0.054895342 0.044256755 -44.452999 47.232401 6715.2374 1.6958790e+08 0.052559874 0.047621351 -44.540881 47.127523 6717.3171 1.6554789e+08 0.050120173 0.049854656 -44.626568 47.025513 6719.3968 1.5842645e+08 0.047813196 0.050992846 -44.711196 46.923504 6721.4765 1.5004319e+08 0.047688072 0.050447479 -44.792804 46.821495 6723.5562 1.4380586e+08 0.045800082 0.049679174 -44.874412 46.719485 6725.6360 1.3740989e+08 0.041495288 0.041178758 -44.965453 46.605685 6727.7157 1.3363085e+08 0.040272607 0.040006875 -45.058721 46.489100 6729.7954 1.2828569e+08 0.038964416 0.040515261 -45.144239 46.384914 6731.8751 1.2083157e+08 0.036939429 0.043491718 -45.225847 46.286984 6733.9549 1.1490407e+08 0.035592352 0.049108547 -45.306582 46.188182 6736.0346 1.0743511e+08 0.036822752 0.050485767 -45.384109 46.086172 6738.1143 1.0282990e+08 0.037711751 0.057950423 -45.461636 45.984162 6740.1940 1.0216640e+08 0.037313856 0.064381835 -45.547616 45.871030 6742.2738 96592281. 0.034477586 0.069277810 -45.636219 45.754445 6744.3535 92243035. 0.029902165 0.078066819 -45.720494 45.646879 6746.4332 88635020. 0.026960962 0.073950813 -45.802102 45.544870 6748.5129 85644834. 0.024320425 0.069715419 -45.884102 45.440412 6750.5926 83822886. 0.021131351 0.073016103 -45.968043 45.323827 6752.6724 78757021. 0.017362063 0.073356417 -46.051832 45.207684 6754.7521 73404492. 0.014244559 0.075004009 -46.129361 45.109755 6756.8318 69515333. 0.0093451338 0.076307298 -46.206889 45.011826 6758.9115 67762891. 0.0067257138 0.075632895 -46.288091 44.903210 6760.9913 62784616. -0.0020601456 0.077951565 -46.372030 44.786625 6763.0710 60037542. -0.047137930 0.076653955 -46.453227 44.676280 6765.1507 56633872. -0.0048637892 0.079558705 -46.530767 44.574255 6767.2304 54185357. 0.090689273 0.081717741 -46.608306 44.472231