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8259 (1983 UG)
Classification: Main-belt Asteroid          SPK-ID: 2008259
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2218675208882684 5.4204e-08  
a 2.254327937179191 1.1979e-08 AU
q 1.75416578648808 1.2094e-07 AU
i 5.783789043898722 5.6347e-06 deg
node 77.57912467837565 5.8806e-05 deg
peri 302.2023815106198 6.0549e-05 deg
M 81.53866130931756 1.7391e-05 deg
tp 2456720.482520049953
(2014-Mar-03.98252005)
5.8576e-05 JED
period 1236.30056176183
3.38
9.8539e-06
2.698e-08
d
yr
n .2911913260695848 2.3209e-09 deg/d
Q 2.754490087870302 1.4636e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1231  
   data-arc span      17774 days (48.66 yr)  
   first obs. used      1966-10-17  
   last obs. used      2015-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4847  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 11:58:52  

Additional Information
 Earth MOID = .765206 AU 
 T_jup = 3.585 
[ 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 14.0 mag n/a MPO337325  
diameter diameter 6.01 km 0.5 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
rotation period rot_per 6.9507 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J., in press.]
geometric albedo albedo 0.1120   0.020 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3

8259 (1983 UG)          Discovered 1983-Oct-16 by Vavrova, Z. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1983 UG = 1966 UD = 1992 HX6 = 1993 TC29 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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