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

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2217923522717956 3.2915e-08  
a 2.253459486884239 5.6281e-09 au
q 1.753659406538991 7.5878e-08 au
i 5.781677035770707 2.6801e-06 deg
node 77.50611581285635 3.5201e-05 deg
peri 302.1110285875844 3.5838e-05 deg
M 2.63504816713928 6.6766e-06 deg
tp 2459191.456029931654
(2020-Dec-07.95602993)
2.2912e-05 TDB
period 1235.586227685187
3.38
4.6289e-06
1.267e-08
d
yr
n .2913596735975629 1.0915e-09 deg/d
Q 2.753259567229488 6.8764e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2450  
   data-arc span      19815 days (54.25 yr)  
   first obs. used      1966-10-17  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45374  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:42:18  

Additional Information
 Earth MOID = .763514 au 
 Jupiter MOID = 2.71687 au 
 T_jup = 3.586 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.15   n/a E2021B10  
diameter diameter 4.845 km 0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.951 h n/a LCDB (Rev. 2020-October); 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. 150, A75.]
geometric albedo albedo 0.227   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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

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Alternate Designations
 1983 UG = 1966 UD = 1992 HX6 = 1993 TC29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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