Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.gao.spb.ru/english/as/j2014/presentations/girdiuk.pdf Дата изменения: Thu Oct 2 12:29:25 2014 Дата индексирования: Sun Apr 10 01:11:26 2016 Кодировка: ISO8859-5 Поисковые слова: мода колебаний

Improvement of the Pluto orbit using additional new data

Girdiuk Anastasia

Institute of Applied Astronomy RAS
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Introduction Observations Pluto orbit parameters Comparison Summary

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Pluto orbit 1913-2013, ep o ch is 19 June 1986

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Residials

(, )

of EPM2013 and EPM2014a, photo

digitized Pulkovo USNO/Lowell review other Pulkovo

photographic plates

63 469 193

1930-1960 1931-1951 1930-1992

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Residials

(, )

of EPM2013 and EPM2014a, CCD

Pico dos Dias USNO/Flagsta Table Mountain

CCD

ESO/La Serena, occultations

5489 1197 695 11

1995-2011 1995-2013 2001-2013 2005-2008

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Lagrangian elements

cross-platform software ERA-8 epoch = 19 June 1986 (JD = 2446600.5) standard deviation of the elements element
a

sin i cos sin i sin e cos e sin
l

EPM2014a 39.713 a.u. 0.285 0.276 -0.170 -0.187 -2.435

of the EPM2013 1316.116 km 0.816 mas 4.516 mas 27.453 mas 21.417 mas 13.299 mas
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of the EPM2014a 563.306 km 0.865 mas 3.312 mas 12.900 mas 8.384 mas 4.870 mas
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Initial p osotions and velo cities

epoch = 19 June 1986 (JD = 2446600.5) a.u. EPM2013 EPM2014a a.u./d EPM2013 EPM2014a x -24.112071 -24.112064
vx

y -17.403037 -17.403020
v
y

z 1.833799 1.833803
v
z

0.0019439712 0.0019439695

-0.0025828344 -0.0025828371

-0.0013916896 -0.0013916900

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Comparison testing ephemerides to DE430, DE432

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Comparison EPM2014a to EPM2011, EPM2013

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Comparison EPM2014a to INPOP13c and DE432

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Conclusion

Improving ephemerides appears in residual observations and standard deviation of the Lagrangian elements The ephemerides EPM2014a of Pluto is close to the last ephemerides DE432 The ephemerides EPM2014a corresponds to modern working ephemerides

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Thank you for your attention!