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19255 (1994 VK8)
Classification: TransNeptunian Object          SPK-ID: 2019255
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0331393958837967 0.0001801  
a 42.55860024446864 0.011314 au
q 41.14823394270694 0.01826 au
i 1.486061945999885 0.00027291 deg
node 72.35766405627199 0.0018192 deg
peri 124.79150674 0.25184 deg
M 260.5045953892229 0.23934 deg
tp 2487027.715440874079
(2097-Feb-23.21544087)
56.917 TDB
period 101409.684177733
277.64
40.439
0.1107
d
yr
n .003549956820386657 1.4156e-06 deg/d
Q 43.96896654623033 0.011689 au
  Orbit Determination Parameters
   # obs. used (total)      66  
   data-arc span      7347 days (20.11 yr)  
   first obs. used      1995-12-24  
   last obs. used      2016-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .64147  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 00:06:01  

Additional Information
 Earth MOID = 40.147 au 
 Jupiter MOID = 35.6858 au 
 T_jup = 5.837 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.0   n/a PDS3 (MPO 6493)  
rotation period rot_per 9. 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:
[Romanishin, W.; Tegler, S.C. (1999) Nature 398, 129-132.]

19255 (1994 VK8)          Discovered 1994-Nov-08 by Fitzsimmons, A., O'Ceallaigh, D., Williams, I. P. at La Palma
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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