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66904 (1999 VA160)
Classification: Main-belt Asteroid          SPK-ID: 2066904
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1924640925384783 4.3459e-08  
a 3.07559696090978 1.4346e-08 au
q 2.483654982814177 1.3925e-07 au
i 9.431874289538039 3.4165e-06 deg
node 218.9116650085269 2.2292e-05 deg
peri 129.7464427925836 2.5217e-05 deg
M .1608303283479143 8.891e-06 deg
tp 2459199.619847332915
(2020-Dec-16.11984733)
4.8656e-05 TDB
period 1970.11946319645
5.39
1.3784e-05
3.774e-08
d
yr
n .1827300357796134 1.2785e-09 deg/d
Q 3.667538939005382 1.7107e-08 au
  Orbit Determination Parameters
   # obs. used (total)      957  
   data-arc span      8692 days (23.80 yr)  
   first obs. used      1997-04-03  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50411  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:25:45  

Additional Information
 Earth MOID = 1.48934 au 
 Jupiter MOID = 1.8885 au 
 T_jup = 3.180 
[ 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 14.58   n/a E2021B10  
rotation period rot_per 3.054 h n/a LCDB (Rev. 2020-October); 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.]

66904 (1999 VA160)          Discovered 1999-Nov-14 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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