# # 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 = 54.624884 km # Date (UTC) = 2014-01-28T09:52:57.603 # Date (julian) = 2456685.91177782 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6488.5059 7.8602711e+10 0.017510858 0.028817182 99.780821 53.291420 6490.3681 6.9247610e+10 0.023000607 0.029378735 99.963499 53.100596 6492.2303 5.9925751e+10 0.028339789 0.029940288 100.13422 52.918077 6494.0926 5.1750993e+10 0.033353389 0.030501842 100.28038 52.754376 6495.9548 4.5840653e+10 0.037857236 0.031063395 100.43080 52.590677 6497.8171 4.1710528e+10 0.041889834 0.031624948 100.58259 52.427086 6499.6793 3.8304770e+10 0.045594104 0.032186501 100.72287 52.269271 6501.5415 3.5333836e+10 0.049135621 0.032748054 100.86496 52.109646 6503.4038 3.2779979e+10 0.052851122 0.033309607 101.01112 51.945947 6505.2660 3.0519902e+10 0.057054113 0.033871160 101.15379 51.782247 6507.1282 2.8491448e+10 0.062087710 0.034432713 101.29410 51.618545 6508.9905 2.6589466e+10 0.068227777 0.034994266 101.43439 51.454881 6510.8527 2.4778348e+10 0.075704817 0.035555819 101.57365 51.291215 6512.7150 2.3098224e+10 0.084789247 0.036117373 101.70811 51.127516 6514.5772 2.1686474e+10 0.095827856 0.036678926 101.83215 50.978784 6516.4394 2.0553585e+10 0.10892784 0.037240479 101.94420 50.847245 6518.3017 1.9523415e+10 0.12366397 0.037802032 102.06550 50.702431 6520.1639 1.8450558e+10 0.13965367 0.038363585 102.19997 50.538732 6522.0262 1.7283608e+10 0.15503372 0.038924100 102.33031 50.375060 6523.8884 1.6163599e+10 0.16330999 0.039399299 102.45890 50.211398 6525.7506 1.5102849e+10 0.16869342 0.039696547 102.58752 50.047700 6527.6129 1.4052008e+10 0.17254236 0.041161423 102.71614 49.884001 6529.4751 1.3077548e+10 0.17447856 0.042992592 102.84477 49.720302 6531.3373 1.2279549e+10 0.17566875 0.045719693 102.96115 49.572171 6533.1996 1.1650366e+10 0.17722467 0.047604405 103.06833 49.435759 6535.0618 1.1086971e+10 0.17749423 0.048197477 103.18358 49.285235 6536.9241 1.0521347e+10 0.17669558 0.048617285 103.30632 49.121576 6538.7863 9.9026485e+09 0.17573512 0.049539569 103.42909 48.957885 6540.6485 9.3734570e+09 0.17504481 0.051160490 103.54989 48.796822 6542.5108 8.9388392e+09 0.17360358 0.051196158 103.65219 48.660410 6544.3730 8.5025946e+09 0.17218199 0.051946947 103.75514 48.522797 6546.2353 8.0595068e+09 0.17048416 0.052658105 103.87207 48.359099 6548.0975 7.5968349e+09 0.16969642 0.053696761 103.98249 48.202886 6549.9597 7.1929542e+09 0.16886275 0.054944325 104.07991 48.061631 6551.8220 6.8561460e+09 0.16737338 0.055524276 104.18280 47.914081 6553.6842 6.5146234e+09 0.16555533 0.054991123 104.29973 47.750381 6555.5464 6.1917068e+09 0.16392862 0.054394216 104.40554 47.602239 6557.4087 5.8898788e+09 0.16217619 0.053609940 104.50298 47.465828 6559.2709 5.6055609e+09 0.15955718 0.052356601 104.60748 47.315297 6561.1332 5.3213028e+09 0.15666944 0.051307060 104.71856 47.151596 6562.9954 5.0463726e+09 0.15436023 0.049932741 104.81468 47.009940 6564.8576 4.8193907e+09 0.15201111 0.048382914 104.90723 46.873557 6566.7199 4.5999948e+09 0.14991632 0.046775650 105.01375 46.716579 6568.5821 4.3788159e+09 0.14838776 0.045236556 105.12382 46.554068 6570.4444 4.1538405e+09 0.14743477 0.044733441 105.21151 46.417656 6572.3066 3.9682952e+09 0.14615180 0.044054576 105.29920 46.281244 6574.1688 3.8379440e+09 0.14409656 0.042773914 105.39172 46.144834 6576.0311 3.6923553e+09 0.14231685 0.041335627 105.48428 46.008424 6577.8933 3.5224070e+09 0.14066536 0.038817195 105.58874 45.840923 6579.7556 3.3474308e+09 0.13877256 0.036655138 105.68997 45.678931 6581.6178 3.1874755e+09 0.13693802 0.035409534 105.77765 45.542548 6583.4800 3.0751200e+09 0.13523324 0.034778698 105.86532 45.406160 6585.3423 2.9988053e+09 0.13339946 0.033697139 105.95302 45.269750 6587.2045 2.8975015e+09 0.13171450 0.033203680 106.04214 45.130007 6589.0667 2.7819293e+09 0.12986742 0.032913564 106.14153 44.966305 6590.9290 2.6524032e+09 0.12773030 0.029334014 106.23410 44.813840 6592.7912 2.5259935e+09 0.12590914 0.027305009 106.31692 44.677430 6594.6535 2.4332174e+09 0.12360487 0.025813806 106.40149 44.541020 6596.5157 2.3451567e+09 0.12092838 0.025724929 106.48918 44.404609 6598.3779 2.2695651e+09 0.11892477 0.025226725 106.57388 44.266715 6600.2402 2.1960833e+09 0.11809108 0.025483630 106.65182 44.125459 6602.1024 2.1235125e+09 0.11702849 0.027429238 106.73099 43.985432 6603.9647 2.0617430e+09 0.11512893 0.026092202 106.81381 43.849022 6605.8269 1.9909837e+09 0.11464200 0.027358739 106.89995 43.707132 6607.6891 1.9089017e+09 0.11295954 0.024346224 106.99935 43.543431 6609.5514 1.8179767e+09 0.11061840 0.023869714 107.08822 43.393112 6611.4136 1.7328714e+09 0.10853936 0.024694697 107.16617 43.256701 6613.2758 1.6578541e+09 0.10799391 0.023674799 107.24412 43.120291 6615.1381 1.5959830e+09 0.10710335 0.023255780 107.32207 42.983881 6617.0003 1.5415323e+09 0.10603653 0.023439356 107.40001 42.845605 6618.8626 1.4898939e+09 0.10553646 0.024422131 107.47795 42.704351 6620.7248 1.4440945e+09 0.10495319 0.025000763 107.55588 42.564705 6622.5870 1.3966355e+09 0.10380453 0.024601743 107.63383 42.428294 6624.4493 1.3451750e+09 0.10237411 0.025102805 107.71042 42.291883 6626.3115 1.2942995e+09 0.10116821 0.026194005 107.78350 42.155471 6628.1738 1.2474127e+09 0.099851090 0.025773641 107.85768 42.019060 6630.0360 1.2023782e+09 0.098657181 0.025928390 107.93563 41.882650 6631.8982 1.1641173e+09 0.096991846 0.026022008 108.01273 41.746240 6633.7605 1.1254087e+09 0.095636926 0.026285023 108.08581 41.609830 6635.6227 1.0844727e+09 0.094296999 0.026493172 108.15888 41.473419 6637.4849 1.0449761e+09 0.093118128 0.025923900 108.23196 41.337007 6639.3472 1.0052837e+09 0.092314275 0.025503983 108.30504 41.200262 6641.2094 9.6716807e+08 0.092637972 0.025149012 108.37810 41.059006 6643.0717 9.3496975e+08 0.091987594 0.025203438 108.45108 40.917827 6644.9339 9.0312225e+08 0.090921456 0.025444540 108.51929 40.781417 6646.7961 8.7468791e+08 0.089743205 0.026332255 108.58749 40.645007 6648.6584 8.4009605e+08 0.088814228 0.027405004 108.66039 40.508597 6650.5206 8.0711258e+08 0.088599653 0.026374421 108.73347 40.372187 6652.3829 7.7719430e+08 0.088332578 0.027355860 108.80211 40.235777 6654.2451 7.5046226e+08 0.087702003 0.027931814 108.87031 40.099367 6656.1073 7.2740406e+08 0.086176610 0.028117622 108.94270 39.962955 6657.9696 7.0305374e+08 0.085050240 0.030025782 109.01578 39.826543 6659.8318 6.7589219e+08 0.083864660 0.031661082 109.08493 39.690133 6661.6940 6.5292722e+08 0.082601090 0.032888443 109.15314 39.553723 6663.5563 6.2986238e+08 0.081533767 0.032329052 109.22133 39.417333 6665.4185 6.0772153e+08 0.081381906 0.027861363 109.28952 39.280949 6667.2808 5.8690357e+08 0.080927371 0.027206587 109.35432 39.144545 6669.1430 5.6402612e+08 0.079869549 0.028208830 109.41765 39.008133 6671.0052 5.4411585e+08 0.079961945 0.026865423 109.48414 38.868569 6672.8675 5.2710838e+08 0.079576669 0.027382406 109.55235 38.727286 6674.7297 5.1177024e+08 0.078243807 0.029570356 109.62055 38.588900 6676.5920 4.9670746e+08 0.076130794 0.032095236 109.68876 38.452490 6678.4542 4.7942638e+08 0.075373396 0.030632829 109.75432 38.316080 6680.3164 4.5962461e+08 0.075804993 0.029509747 109.81765 38.179670 6682.1787 4.4068701e+08 0.076317691 0.030561055 109.88099 38.043260 6684.0409 4.2400984e+08 0.076331011 0.032656168 109.94432 37.906850 6685.9031 4.1078378e+08 0.075721041 0.033658785 110.00765 37.770451 6687.7654 3.9663251e+08 0.073558661 0.033916036 110.07097 37.634065 6689.6276 3.8165099e+08 0.071524009 0.033451060 110.13430 37.497670 6691.4899 3.6305848e+08 0.070741296 0.032885687 110.19763 37.361260 6693.3521 3.5060783e+08 0.070045974 0.031483296 110.26096 37.224850 6695.2143 3.3694363e+08 0.069744479 0.029820102 110.32430 37.088440 6697.0766 3.2541890e+08 0.069261360 0.030100957 110.38763 36.952029 6698.9388 3.1429329e+08 0.068148052 0.031506454 110.45096 36.815617 6700.8011 3.0321750e+08 0.066618713 0.031261885 110.51320 36.679206 6702.6633 2.9306215e+08 0.066041482 0.033406375 110.57166 36.542796 6704.5255 2.8422912e+08 0.066203974 0.036435618 110.63097 36.406386 6706.3878 2.7173889e+08 0.066080298 0.039121293 110.69430 36.269976 6708.2500 2.6241619e+08 0.065736714 0.040315831 110.75704 36.133569 6710.1123 2.5381369e+08 0.064643626 0.040518466 110.81549 35.997183 6711.9745 2.4084631e+08 0.062820139 0.041800934 110.87428 35.860796 6713.8367 2.3323267e+08 0.060965741 0.046712886 110.93761 35.724386 6715.6990 2.2380267e+08 0.059505025 0.048093470 111.00074 35.588265 6717.5612 2.1846507e+08 0.057652204 0.049839555 111.05085 35.471345 6719.4234 2.1597400e+08 0.055925873 0.050967537 111.10096 35.354426 6721.2857 2.1320225e+08 0.056182257 0.050389976 111.15625 35.225420 6723.1479 2.0886989e+08 0.055051109 0.049451441 111.21471 35.089008 6725.0102 2.0304745e+08 0.051075266 0.041569675 111.27317 34.952597 6726.8724 1.9081591e+08 0.049676423 0.040959236 111.33163 34.816187 6728.7346 1.8166687e+08 0.049491266 0.040669319 111.38759 34.682285 6730.5969 1.7659143e+08 0.048040853 0.041197290 111.44118 34.550746 6732.4591 1.7163530e+08 0.046857477 0.043824730 111.49702 34.416955 6734.3214 1.7337167e+08 0.046234341 0.049334265 111.55548 34.280544 6736.1836 1.7239816e+08 0.047772161 0.051049078 111.61394 34.144144 6738.0458 1.7257314e+08 0.048821747 0.057573397 111.67239 34.007759 6739.9081 1.6958743e+08 0.048690354 0.063937853 111.72911 33.871365 6741.7703 1.6072846e+08 0.047008986 0.067955648 111.78270 33.734955 6743.6325 1.5194156e+08 0.043182041 0.075314565 111.83629 33.598545 6745.4948 1.4845101e+08 0.041484187 0.078774889 111.88988 33.462135 6747.3570 1.4588050e+08 0.037073311 0.067238252 111.94469 33.325725 6749.2193 1.4442343e+08 0.036574308 0.072217900 112.00315 33.189315 6751.0815 1.4142244e+08 0.034077496 0.073746129 112.06065 33.053873 6752.9437 1.3088258e+08 0.031666071 0.073042396 112.11424 32.922334 6754.8060 1.2536678e+08 0.030181876 0.074917362 112.16783 32.790083 6756.6682 1.2249395e+08 0.027761586 0.075886322 112.22141 32.653671 6758.5305 1.2040631e+08 0.028146747 0.074827035 112.27500 32.517262 6760.3927 1.2528956e+08 0.028421593 0.076810115 112.32858 32.380878 6762.2549 1.2037964e+08 0.032380123 0.077639622 112.38216 32.244493 6764.1172 1.1395565e+08 0.034954494 0.079488899 112.43575 32.108082 6765.9794 1.0973557e+08 0.036404115 0.079709988 112.48934 31.971673 6767.8416 1.0102814e+08 0.033936136 0.081033341 112.54293 31.840073 6769.7039 96835707. 0.029772649 0.086161489 112.59652 31.708535 6771.5661 91675536. 0.026366053 0.090678236 112.64556 31.572440 6773.4284 86341013. 0.022973246 0.095194983 112.69427 31.436029 6775.2906 83440850. 0.019562006 0.099711731 112.74729 31.299618 6777.1528 82127972. 0.016118977 0.10422848 112.80088 31.163207 6779.0151 79672557. 0.012655804 0.10874523 112.85043 31.026797 6780.8773 77037138. 0.0091478753 0.11326197 112.89915 30.890387 6782.7396 73751025. 0.0055484687 0.11777872 112.95165 30.757783 6784.6018 67989351. 0.0018074221 0.12229547 113.00522 30.626269 6786.4640 64882000. -0.0030206506 0.12681221 113.05528 30.491208 6788.3263 58901631. -0.014556996 0.13132896 113.10400 30.354797 6790.1885 51389181. -0.012438664 0.13584571 113.15599 30.221659 6792.0507 48637579. 0.00045250141 0.14036246 113.20958 30.090121