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JPL Small-Body Database Browser
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2516 Roman (1964 VY)
Classification: Main-belt Asteroid          SPK-ID: 2002516
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 .1651746412805443 2.411e-08  
a 2.27913019272617 5.9817e-09 au
q 1.902675680710967 5.4826e-08 au
i 1.093433593233339 3.1231e-06 deg
node 123.3995243358863 0.00017999 deg
peri 313.7661421770126 0.00018035 deg
M 280.7116349781984 1.0987e-05 deg
tp 2458877.295541432124
(2020-Jan-28.79554143)
3.8413e-05 TDB
period 1256.759360445448
3.44
4.9477e-06
1.355e-08
d
yr
n .2864510194476697 1.1277e-09 deg/d
Q 2.655584704741373 6.9698e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2304  
   data-arc span      20117 days (55.08 yr)  
   first obs. used      1964-11-06  
   last obs. used      2019-12-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4753  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:16:47  

Additional Information
 Earth MOID = .918094 au 
 Jupiter MOID = 2.58509 au 
 T_jup = 3.588 
[ 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 13.5   n/a MPO416735  
diameter diameter 4.408 km 0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.301   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2516 Roman (1964 VY)          Discovered 1964-Nov-06 by Goethe Link Observatory at Brooklyn
Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1964 VY = 1964 VG2 = 1974 SH = 1976 GB6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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