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22748 (1998 UW8)
Classification: Outer Main-belt Asteroid          SPK-ID: 2022748
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08569616472989468 5.0988e-08  
a 3.218691101290752 3.326e-08 au
q 2.942861618459894 1.6194e-07 au
i 1.638133581226093 7.1057e-06 deg
node 344.5509757587718 0.00016918 deg
peri 315.87001662842 0.00017479 deg
M 73.51843517702072 4.4703e-05 deg
tp 2456969.764040654095
(2014-Nov-08.26404065)
0.00026206 JED
period 2109.198121412052
5.77
3.2693e-05
8.951e-08
d
yr
n .1706809788731414 2.6456e-09 deg/d
Q 3.494520584121611 3.611e-08 au
  Orbit Determination Parameters
   # obs. used (total)      864  
   data-arc span      13790 days (37.75 yr)  
   first obs. used      1978-03-15  
   last obs. used      2015-12-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55815  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:51:11  

Additional Information
 Earth MOID = 1.92573 au 
 Jupiter MOID = 1.6784 au 
 T_jup = 3.183 
[ 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 MPO347697  

22748 (1998 UW8)          Discovered 1998-Oct-17 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 UW8 = 1978 EJ9 = 2000 AD134 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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