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13138 (1994 VA)
Classification: Main-belt Asteroid          SPK-ID: 2013138
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2487294001256446 6.5065e-08  
a 2.543147331836409 1.0206e-08 au
q 1.910591821557605 1.6894e-07 au
i 12.00583029431779 4.7346e-06 deg
node 232.0299877317082 2.6979e-05 deg
peri 90.43638668688567 2.8661e-05 deg
M 66.70724196209687 9.0809e-06 deg
tp 2458326.010211676104
(2018-Jul-26.51021168)
3.7744e-05 TDB
period 1481.343267838148
4.06
8.9172e-06
2.441e-08
d
yr
n .2430226726080709 1.4629e-09 deg/d
Q 3.175702842115212 1.2744e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1799  
   data-arc span      13774 days (37.71 yr)  
   first obs. used      1981-05-08  
   last obs. used      2019-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47802  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:20:45  

Additional Information
 Earth MOID = .943245 au 
 Jupiter MOID = 2.30988 au 
 T_jup = 3.371 
[ 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 13.6   n/a MPO347629  
diameter diameter 7.072 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 57. h n/a LCDB (Rev. 2019-January); 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:
[Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.156   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

13138 (1994 VA)          Discovered 1994-Nov-01 by Kobayashi, T. at Oizumi
Reference: 20000124/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 VA = 1981 JW3 = 1998 VO9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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