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13518 (1990 VL1)
Classification: Main-belt Asteroid          SPK-ID: 2013518
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2153113230398365 9.4314e-08  
a 2.558094836185108 2.0876e-08 AU
q 2.007308052544719 2.5088e-07 AU
i 8.470025439511659 5.9863e-06 deg
node 238.8356712388533 5.7137e-05 deg
peri 112.2617694250602 5.947e-05 deg
M 311.1776259360742 1.9206e-05 deg
tp 2457003.170146528559
(2014-Dec-11.67014653)
8.1329e-05 JED
period 1494.422468164883
4.09
1.8294e-05
5.009e-08
d
yr
n .2408957357567514 2.9489e-09 deg/d
Q 3.108881619825498 2.5371e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      896  
   data-arc span      8633 days (23.64 yr)  
   first obs. used      1990-11-12  
   last obs. used      2014-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54803  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:30:41  

Additional Information
 Earth MOID = 1.01927 AU 
 T_jup = 3.389 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a PDS3 (MPC 38321)  
rotation period rot_per 6.885 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]

13518 (1990 VL1)          Discovered 1990-Nov-12 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 VL1 = 1994 UW11 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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