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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08565842214605605 5.711e-08  
a 3.21920733183623 4.8528e-08 AU
q 2.943455111230123 1.9866e-07 AU
i 1.638270056792464 7.3111e-06 deg
node 344.5534030394624 0.00020469 deg
peri 316.0541722320718 0.00021079 deg
M 5.093017136567214 5.5505e-05 deg
tp 2456970.653426078917
(2014-Nov-09.15342608)
0.000325 JED
period 2109.705568128498
5.78
4.7704e-05
1.306e-07
d
yr
n .1706399250390911 3.8585e-09 deg/d
Q 3.494959552442337 5.2685e-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 = 1.92931 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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