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Contents

   



(Top)
 


1 Perihelion  





2 See also  





3 References  





4 External links  














(315898) 2008 QD4






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(315898) 2008 QD4
Centaur 2008 QD4 (apmag19) as seen with 24" telescope
Discovery
Discovered byMallorca Obs.
Discovery siteLa Sagra Obs.
Discovery date25 August 2008
Designations

MPC designation

(315898) 2008 QD4

Minor planet category

centaur[1][2][3]
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter1
Observation arc2744 days (7.51 yr)
Aphelion11.364 AU (1.7000 Tm) (Q)
Perihelion5.4531 AU (815.77 Gm) (q)

Semi-major axis

8.4087 AU (1.25792 Tm) (a)
Eccentricity0.35149 (e)

Orbital period (sidereal)

24.38 yr (8906.16 d)

Mean anomaly

79.666° (M)

Mean motion

0° 2m 25.516s / day (n)
Inclination42.028° (i)

Longitude of ascending node

344.70° (Ω)

Argument of perihelion

68.923° (ω)
Earth MOID4.6941 AU (702.23 Gm)
Jupiter MOID1.46448 AU (219.083 Gm)
TJupiter2.387
Physical characteristics

Mean diameter

31 km[4]

Geometric albedo

0.05 (assumed)[4]

Absolute magnitude (H)

11.4[1]

(315898) 2008 QD4, prov. designation: 2008 QD4, is a centaur orbiting in the outer Solar System with a perihelion greater than Jupiter and a semi-major axis less than Saturn.

Perihelion

[edit]

2008 QD4 is listed as a centaur by the Minor Planet Center,[3] Jet Propulsion Laboratory,[1] and the Deep Ecliptic Survey (DES).[2]Ofnumbered objects listed as a centaur by all 3 major institutions, (315898) 2008 QD4 has the smallest perihelion distance.[3]

It came to perihelion in August 2010.[1]

Of objects listed as a centaur by all 3 major institutions, (315898) 2008 QD4 has the smallest perihelion distance. Due to a 41° orbital inclination, it is above the ecliptic plane when crossing Jupiter's orbit, and below the ecliptic when crossing Saturn's orbit.

See also

[edit]

References

[edit]
  1. ^ a b c d e "JPL Small-Body Database Browser: (2008 QD4)" (last observation: 2008-10-08). Retrieved 8 April 2016.
  • ^ a b Marc W. Buie (1 October 2008). "Orbit Fit and Astrometric record for 08QD4". SwRI (Space Science Department). Retrieved 17 October 2008.
  • ^ a b c "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. Retrieved 17 October 2008.
  • ^ a b assumed to have an albedo just above a typical comet
  • [edit]


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  • Retrieved from "https://en.wikipedia.org/w/index.php?title=(315898)_2008_QD4&oldid=1195659035"

    Categories: 
    Minor planet object articles (numbered)
    Centaurs (small Solar System bodies)
    Discoveries by the Observatorio Astronómico de Mallorca
    Astronomical objects discovered in 2008
    Centaur and trans-Neptunian object stubs
    Hidden categories: 
    Use dmy dates from August 2021
    Articles with JPL SBDB identifiers
    Articles with MPC identifiers
    All stub articles
     



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