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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09598962989157744 9.2504e-08  
a 3.003878171476361 4.1733e-08 AU
q 2.715537017556957 2.8039e-07 AU
i 9.608046978655612 1.0569e-05 deg
node 215.8485995762337 5.7877e-05 deg
peri 150.5217974544394 8.7105e-05 deg
M 58.73916268113453 6.2186e-05 deg
tp 2456690.224738732914
(2014-Feb-01.72473873)
0.00032666 JED
period 1901.6119562771
5.21
3.9628e-05
1.085e-07
d
yr
n .1893130713717185 3.9452e-09 deg/d
Q 3.292219325395765 4.5738e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      239  
   data-arc span      7755 days (21.23 yr)  
   first obs. used      1993-11-20  
   last obs. used      2015-02-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61027  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 21:36:19  

Additional Information
 Earth MOID = 1.71989 AU 
 T_jup = 3.224 
[ 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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