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13511 (1989 RD1)
Classification: Main-belt Asteroid          SPK-ID: 2013511
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1902494739588789 4.5249e-08  
a 2.666973974448609 1.5762e-08 au
q 2.159583578747741 1.2753e-07 au
i 13.30306179118539 5.0719e-06 deg
node 86.72972797020661 1.866e-05 deg
peri 261.2351609639281 2.3024e-05 deg
M 9.922048421839587 1.4991e-05 deg
tp 2458956.654458832669
(2020-Apr-17.15445883)
6.6078e-05 TDB
period 1590.840333483529
4.36
1.4103e-05
3.861e-08
d
yr
n .2262954945401045 2.0061e-09 deg/d
Q 3.174364370149478 1.876e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1332  
   data-arc span      11323 days (31.00 yr)  
   first obs. used      1989-08-01  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4857  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:44:16  

Additional Information
 Earth MOID = 1.19994 au 
 Jupiter MOID = 2.35931 au 
 T_jup = 3.319 
[ 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 13.5   n/a MPO337373  
diameter diameter 7.630 km 0.174 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.144   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13511 (1989 RD1)          Discovered 1989-Sep-05 by Gilmore, A. C., Kilmartin, P. M. at Lake Tekapo
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1989 RD1 = 1997 JT7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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