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226971 (2004 VH112)
Classification: Main-belt Asteroid          SPK-ID: 2226971
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0741226067194556 4.2248e-08  
a 3.004277557436184 3.2077e-08 au
q 2.781592673570255 1.3938e-07 au
i 11.08508821697546 6.1621e-06 deg
node 38.08776265866008 2.3508e-05 deg
peri 69.42497706193529 5.0468e-05 deg
M 317.1072606993722 4.6473e-05 deg
tp 2459227.115592862452
(2021-Jan-12.61559286)
0.00024715 TDB
period 1901.991217177606
5.21
3.0462e-05
8.34e-08
d
yr
n .1892753219619014 3.0314e-09 deg/d
Q 3.226962441302113 3.4454e-08 au
  Orbit Determination Parameters
   # obs. used (total)      494  
   data-arc span      8623 days (23.61 yr)  
   first obs. used      1996-04-19  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48722  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 06:01:06  

Additional Information
 Earth MOID = 1.82202 au 
 Jupiter MOID = 1.93742 au 
 T_jup = 3.219 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO454631  
diameter diameter 3.127 km 1.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.08 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.165   0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226971 (2004 VH112)          Discovered 2004-Nov-11 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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