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43782 (1989 US2)
Classification: Main-belt Asteroid          SPK-ID: 2043782
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2831699456814613 3.6945e-08  
a 2.686200646863418 1.0428e-08 au
q 1.925549355601598 9.6188e-08 au
i 11.30585455323585 4.2278e-06 deg
node 220.2695825850862 1.9408e-05 deg
peri 161.1431149540618 2.063e-05 deg
M 33.99439723704133 7.3563e-06 deg
tp 2459048.651346532389
(2020-Jul-18.15134653)
3.2555e-05 TDB
period 1608.074261977931
4.40
9.3639e-06
2.564e-08
d
yr
n .223870258054625 1.3036e-09 deg/d
Q 3.446851938125238 1.3381e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1502  
   data-arc span      11449 days (31.35 yr)  
   first obs. used      1989-10-29  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45966  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:22:22  

Additional Information
 Earth MOID = .931774 au 
 Jupiter MOID = 2.03397 au 
 T_jup = 3.289 
[ 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 14.15   n/a E2021B10  

43782 (1989 US2)          Discovered 1989-Oct-29 by Hioki, T., Kawasato, N. at Okutama
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1989 US2 = 1998 XK80 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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