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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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2487293974635975 6.1984e-08  
a 2.543147332364635 9.885e-09 au
q 1.910591828724424 1.6067e-07 au
i 12.00583164742242 4.5419e-06 deg
node 232.0299867529075 2.5981e-05 deg
peri 90.43638593557834 2.7494e-05 deg
M 66.70724376546767 8.5957e-06 deg
tp 2458326.010204169998
(2018-Jul-26.51020417)
3.563e-05 TDB
period 1481.343268299673
4.06
8.6368e-06
2.365e-08
d
yr
n .2430226725323551 1.4169e-09 deg/d
Q 3.175702836004846 1.2344e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1884  
   data-arc span      14092 days (38.58 yr)  
   first obs. used      1981-05-08  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47922  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:31:57  

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 13.7   n/a MPO502268  
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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