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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08562120232839911 5.7122e-08  
a 3.218998107135402 4.8371e-08 AU
q 2.943383618909628 1.9866e-07 AU
i 1.638231849672578 7.3108e-06 deg
node 344.5567855710067 0.00020471 deg
peri 316.126980108566 0.00021082 deg
M 330.8983376296321 5.522e-05 deg
tp 2456971.027649494208
(2014-Nov-09.52764949)
0.00032512 JED
period 2109.499898549574
5.78
4.7549e-05
1.302e-07
d
yr
n .1706565618929514 3.8466e-09 deg/d
Q 3.494612595361176 5.2513e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      687  
   data-arc span      12898 days (35.31 yr)  
   first obs. used      1978-03-15  
   last obs. used      2013-07-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57762  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 23:21:00  

Additional Information
 Earth MOID = 1.92731 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 13.9 mag n/a MPO266074  

22748 (1998 UW8)          Discovered 1998-Oct-17 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
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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