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13501 (1987 VR)
Classification: Main-belt Asteroid          SPK-ID: 2013501
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08210286121794594 3.0721e-08  
a 3.059037974729376 1.415e-08 au
q 2.807882204429744 9.762e-08 au
i 9.01661489296853 3.9118e-06 deg
node 212.2147899370928 2.0789e-05 deg
peri 224.4241365050003 3.1915e-05 deg
M 359.8027218542588 2.3411e-05 deg
tp 2459001.570908105908
(2020-Jun-01.07090811)
0.00012708 TDB
period 1954.230240143696
5.35
1.356e-05
3.713e-08
d
yr
n .1842157554442147 1.2782e-09 deg/d
Q 3.310193745029009 1.5312e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2355  
   data-arc span      12049 days (32.99 yr)  
   first obs. used      1987-10-27  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4687  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:45:57  

Additional Information
 Earth MOID = 1.83074 au 
 Jupiter MOID = 2.00064 au 
 T_jup = 3.210 
[ 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 12.6   n/a MPO452360  
diameter diameter 9.299 km 0.391 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.186   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13501 (1987 VR)          Discovered 1987-Nov-15 by Mrkos, A. at Klet
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1987 VR = 1992 TP1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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