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JPL Small-Body Database Browser
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146673 (2001 UM204)
Classification: Main-belt Asteroid          SPK-ID: 2146673
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1089739348143929 5.2519e-08  
a 2.775515070225926 2.0003e-08 au
q 2.473056271886761 1.4915e-07 au
i 2.871059852704074 5.6067e-06 deg
node 247.2327013927872 0.00011725 deg
peri 110.0225967919526 0.00012014 deg
M 314.7433207748724 2.5484e-05 deg
tp 2458812.821510183466
(2019-Nov-25.32151018)
0.00011979 TDB
period 1688.938405883051
4.62
1.8258e-05
4.999e-08
d
yr
n .2131516452855935 2.3042e-09 deg/d
Q 3.077973868565091 2.2183e-08 au
  Orbit Determination Parameters
   # obs. used (total)      288  
   data-arc span      6529 days (17.88 yr)  
   first obs. used      2001-10-19  
   last obs. used      2019-09-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60821  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:33:40  

Additional Information
 Earth MOID = 1.46989 au 
 Jupiter MOID = 2.3562 au 
 T_jup = 3.325 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO449800  

146673 (2001 UM204)          Discovered 2001-Oct-19 by NEAT at Palomar
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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