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8639 (1986 VB1)
Classification: Main-belt Asteroid          SPK-ID: 2008639
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1386331226723085 3.3978e-08  
a 2.228539428215011 6.0953e-09 au
q 1.919590048283203 7.7923e-08 au
i 5.130320233667684 3.4787e-06 deg
node 259.854304759644 4.1349e-05 deg
peri 156.9967128702498 4.372e-05 deg
M 22.70248060998209 1.3858e-05 deg
tp 2458923.869841679032
(2020-Mar-15.36984168)
4.6707e-05 TDB
period 1215.14725502811
3.33
4.9854e-06
1.365e-08
d
yr
n .2962603902616495 1.2155e-09 deg/d
Q 2.537488808146819 6.9404e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1775  
   data-arc span      12406 days (33.97 yr)  
   first obs. used      1986-11-03  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50003  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:19:27  

Additional Information
 Earth MOID = .932973 au 
 Jupiter MOID = 2.77226 au 
 T_jup = 3.626 
[ 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 14.7   n/a MPO296207  
rotation period rot_per 4.626 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2010) Minor Planet Bull. 37, 24-27.]

8639 (1986 VB1)          Discovered 1986-Nov-03 by Mrkos, A. at Klet
Reference: 19980511/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1986 VB1 = 1994 BZ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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