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192558 (1998 UM44)
Classification: Main-belt Asteroid          SPK-ID: 2192558
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09543751662395547 8.4756e-08  
a 3.00914735929359 4.1229e-08 au
q 2.721961808167077 2.5314e-07 au
i 9.619985198450756 8.1475e-06 deg
node 215.6859598280234 5.3686e-05 deg
peri 151.9587355208622 7.1535e-05 deg
M 170.8081252824303 4.9463e-05 deg
tp 2456695.872812179450
(2014-Feb-07.37281218)
0.00025348 JED
period 1906.61765695813
5.22
3.9185e-05
1.073e-07
d
yr
n .188816042212865 3.8806e-09 deg/d
Q 3.296332910420104 4.5164e-08 au
  Orbit Determination Parameters
   # obs. used (total)      289  
   data-arc span      8166 days (22.36 yr)  
   first obs. used      1993-11-20  
   last obs. used      2016-03-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58274  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 17:41:17  

Additional Information
 Earth MOID = 1.72502 au 
 Jupiter MOID = 2.18185 au 
 T_jup = 3.222 
[ 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 15.3 mag n/a MPO325790  

192558 (1998 UM44)          Discovered 1998-Oct-17 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Alternate Designations
 1998 UM44 = 2003 RG7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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