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11985 (1995 VG)
Classification: Main-belt Asteroid          SPK-ID: 2011985
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04927829966215006 2.335e-08  
a 2.758511231090279 1.1107e-08 au
q 2.622576488023206 6.3806e-08 au
i 1.940406285845004 1.3683e-06 deg
node 282.2348306494843 3.2689e-05 deg
peri 173.7567543196132 2.7974e-05 deg
M 141.2467619285964 1.9756e-05 deg
tp 2458543.921645353180
(2019-Mar-01.42164535)
9.0824e-05 TDB
period 1673.441602805346
4.58
1.0107e-05
2.767e-08
d
yr
n .2151255229919577 1.2993e-09 deg/d
Q 2.894445974157353 1.1655e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2490  
   data-arc span      14144 days (38.72 yr)  
   first obs. used      1981-10-23  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47397  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 22:54:21  

Additional Information
 Earth MOID = 1.63916 au 
 Jupiter MOID = 2.18447 au 
 T_jup = 3.340 
[ 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 13.26   n/a E2021B10  
diameter diameter 7.647 km 0.155 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 36.314 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.]
geometric albedo albedo 0.191   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11985 (1995 VG)          Discovered 1995-Nov-01 by Kobayashi, T. at Oizumi
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1995 VG = 1981 UP14 = 1986 WJ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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