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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1902958764192574 1.7305e-08  
a 2.667344722973523 1.0244e-08 au
q 2.159760021202995 4.4091e-08 au
i 13.30273043910131 1.0189e-06 deg
node 86.73119337481239 2.2677e-06 deg
peri 261.2776451751071 6.0555e-06 deg
M 55.14082974063128 5.3625e-06 deg
tp 2458956.781810518415
(2020-Apr-17.28181052)
2.3225e-05 TDB
period 1591.172070243971
4.36
9.1667e-06
2.51e-08
d
yr
n .2262483151459553 1.3034e-09 deg/d
Q 3.174929424744051 1.2194e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1893  
   data-arc span      11547 days (31.61 yr)  
   first obs. used      1989-08-01  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43363  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 23:59:44  

Additional Information
 Earth MOID = 1.19845 au 
 Jupiter MOID = 2.35919 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 13.58   n/a E2021B10  
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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