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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1654075021997927 1.4839e-08  
a 2.278950879475833 5.1967e-09 au
q 1.901995306865715 3.417e-08 au
i 1.093500473509206 1.2018e-06 deg
node 123.4007560904936 2.1531e-05 deg
peri 313.6082616067828 2.1215e-05 deg
M 148.8492242756947 7.0104e-06 deg
tp 2458876.928945317336
(2020-Jan-28.42894532)
2.3882e-05 TDB
period 1256.61104782997
3.44
4.2982e-06
1.177e-08
d
yr
n .2864848280792061 9.7991e-10 deg/d
Q 2.655906452085952 6.0563e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3021  
   data-arc span      20687 days (56.64 yr)  
   first obs. used      1964-11-06  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43947  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 21:44:43  

Additional Information
 Earth MOID = .917398 au 
 Jupiter MOID = 2.58544 au 
 T_jup = 3.588 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.63   n/a MPO614063  
diameter diameter 4.408 km 0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.6266 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Benishek, V.; Pravec, P.; Durkee, R.; Husarkik, M.; et al. (2019) CBET 4704.]
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

Alternate Designations
 1964 VY = 1964 VG2 = 1974 SH = 1976 GB6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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