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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2490621767918002 2.544e-08  
a 2.542924944481601 8.5829e-09 au
q 1.909578522390846 6.5822e-08 au
i 12.00450853443637 7.1541e-07 deg
node 232.0100210100284 3.5944e-06 deg
peri 90.50931585382337 5.1749e-06 deg
M 212.4230151399814 3.7152e-06 deg
tp 2459807.676384967051
(2022-Aug-16.17638497)
1.7927e-05 TDB
period 1481.148966388436
4.06
7.4988e-06
2.053e-08
d
yr
n .2430545530324388 1.2305e-09 deg/d
Q 3.176271366572356 1.0721e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2210  
   data-arc span      14556 days (39.85 yr)  
   first obs. used      1981-05-08  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .469  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 23:47:10  

Additional Information
 Earth MOID = .9413 au 
 Jupiter MOID = 2.31207 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 13.69   n/a E2021B10  
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. 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:
[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

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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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