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JPL Small-Body Database Browser
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185814 (1999 XH62)
Classification: Main-belt Asteroid          SPK-ID: 2185814
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1359951907040223 3.8294e-08  
a 2.244410707358444 1.0901e-08 au
q 1.939181645193082 8.5362e-08 au
i 4.479763738034142 5.4027e-06 deg
node 241.4774633217169 5.9236e-05 deg
peri 73.38822025431971 6.3089e-05 deg
M 130.1083638926909 2.1429e-05 deg
tp 2458556.631178991085
(2019-Mar-14.13117899)
7.2403e-05 TDB
period 1228.151448395748
3.36
8.9474e-06
2.45e-08
d
yr
n .2931234584059189 2.1355e-09 deg/d
Q 2.549639769523805 1.2383e-08 au
  Orbit Determination Parameters
   # obs. used (total)      475  
   data-arc span      7321 days (20.04 yr)  
   first obs. used      1999-11-09  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57835  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 13:32:14  

Additional Information
 Earth MOID = .93111 au 
 Jupiter MOID = 2.69879 au 
 T_jup = 3.616 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO454279  
rotation period rot_per 34.656 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

185814 (1999 XH62)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

Alternate Designations
 1999 XH62 = 2002 TE183 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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