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JPL Small-Body Database Browser
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305554 (2008 UM187)
Classification: Main-belt Asteroid          SPK-ID: 2305554
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1972477803654316 4.9974e-08  
a 2.267484542543093 2.0355e-08 au
q 1.820228249513542 1.216e-07 au
i 6.819536452917013 6.0863e-06 deg
node 83.41575578263284 4.1253e-05 deg
peri 225.3208012917493 4.54e-05 deg
M 116.6628907573347 2.1887e-05 deg
tp 2458196.347599826494
(2018-Mar-18.84759983)
7.2218e-05 TDB
period 1247.139198402855
3.41
1.6793e-05
4.598e-08
d
yr
n .2886606406574607 3.8868e-09 deg/d
Q 2.714740835572644 2.4369e-08 au
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      5226 days (14.31 yr)  
   first obs. used      2004-06-27  
   last obs. used      2018-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6494  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 04:37:23  

Additional Information
 Earth MOID = .812121 au 
 Jupiter MOID = 2.54303 au 
 T_jup = 3.580 
[ 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 17.2   n/a MPO455250  

305554 (2008 UM187)          Discovered 2008-Oct-24 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2008 UM187 = 2005 YZ147 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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