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32784 (1989 AR)
Classification: Main-belt Asteroid          SPK-ID: 2032784
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2561620852172094 7.4426e-08  
a 2.59289639519528 2.0622e-08 au
q 1.928694647849872 1.9755e-07 au
i 7.844647154735142 8.2453e-06 deg
node 96.40039685467873 4.9638e-05 deg
peri 355.425065385 5.2201e-05 deg
M 172.5045172565415 1.3185e-05 deg
tp 2456669.741048259315
(2014-Jan-12.24104826)
5.4656e-05 JED
period 1525.022224405956
4.18
1.8193e-05
4.981e-08
d
yr
n .2360621335470906 2.8162e-09 deg/d
Q 3.257098142540689 2.5904e-08 au
  Orbit Determination Parameters
   # obs. used (total)      723  
   data-arc span      9666 days (26.46 yr)  
   first obs. used      1988-12-07  
   last obs. used      2015-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50028  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:50:44  

Additional Information
 Earth MOID = .945062 au 
 Jupiter MOID = 1.96428 au 
 T_jup = 3.359 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3 mag n/a MPO279857  

32784 (1989 AR)          Discovered 1989-Jan-04 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1989 AR = 1998 HW105 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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