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7513 (1985 RU2)
Classification: Main-belt Asteroid          SPK-ID: 2007513
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1586998289738377 3.0898e-08  
a 2.239603885754175 6.2892e-09 au
q 1.884179132115845 6.9737e-08 au
i 2.659214180099523 3.6365e-06 deg
node 16.73996290392333 7.8067e-05 deg
peri 8.895146849284899 7.9027e-05 deg
M 93.78121577223531 1.2619e-05 deg
tp 2458681.589658061747
(2019-Jul-17.08965806)
4.2419e-05 TDB
period 1224.208090633016
3.35
5.1567e-06
1.412e-08
d
yr
n .2940676530032165 1.2387e-09 deg/d
Q 2.595028639392505 7.2873e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1751  
   data-arc span      25520 days (69.87 yr)  
   first obs. used      1950-03-21  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51244  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:31:23  

Additional Information
 Earth MOID = .888185 au 
 Jupiter MOID = 2.85413 au 
 T_jup = 3.617 
[ 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 14.5   n/a MPO452275  
diameter diameter 2.448 km 0.407 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.562   0.205 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7513 (1985 RU2)          Discovered 1985-Sep-05 by Debehogne, H. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1985 RU2 = 1955 SH = 1955 UU1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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