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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2152328840080949 9.4324e-08  
a 2.557904916349346 2.0945e-08 AU
q 2.007359664184992 2.5091e-07 AU
i 8.469854385804673 5.9861e-06 deg
node 238.8306796304208 5.714e-05 deg
peri 112.2586326360413 5.9473e-05 deg
M 359.3605850877826 1.959e-05 deg
tp 2457003.154026663064
(2014-Dec-11.65402666)
8.1334e-05 JED
period 1494.256046343221
4.09
1.8353e-05
5.025e-08
d
yr
n .2409225653668932 2.9591e-09 deg/d
Q 3.108450168513701 2.5453e-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 = 1.02087 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. 2014-Mar-01) 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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