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20525 (1999 RU43)
Classification: Main-belt Asteroid          SPK-ID: 2020525
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2183190468869265 1.333e-08  
a 2.578387638381693 9.9459e-09 au
q 2.015476506665169 3.4315e-08 au
i 22.86547831150049 5.6784e-07 deg
node 40.12066078230748 2.1847e-06 deg
peri 264.4314390812064 4.7262e-06 deg
M 113.5673567903755 4.2523e-06 deg
tp 2458723.441366746643
(2019-Aug-27.94136675)
1.6784e-05 TDB
period 1512.240073423661
4.14
8.75e-06
2.396e-08
d
yr
n .2380574396398397 1.3774e-09 deg/d
Q 3.141298770098218 1.2117e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3000  
   data-arc span      14081 days (38.55 yr)  
   first obs. used      1982-08-22  
   last obs. used      2021-03-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38033  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:23:18  

Additional Information
 Earth MOID = 1.14093 au 
 Jupiter MOID = 2.37008 au 
 T_jup = 3.284 
[ 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 13.18   n/a E2021B10  
diameter diameter 10.836 km 0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20525 (1999 RU43)          Discovered 1999-Sep-14 by Korlevic, K. at Visnjan
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RU43 = 1998 HU151 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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