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52991 (1998 UM25)
Classification: Main-belt Asteroid          SPK-ID: 2052991
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .115501669320475 4.0557e-08  
a 2.284948389338193 8.1575e-09 au
q 2.021033036058501 9.3253e-08 au
i 6.236181199182826 4.96e-06 deg
node 182.0493151236707 3.2621e-05 deg
peri 201.431181234838 3.734e-05 deg
M 158.4287177604151 1.8165e-05 deg
tp 2458645.306432293225
(2019-Jun-10.80643229)
6.3082e-05 TDB
period 1261.574840722332
3.45
6.7559e-06
1.85e-08
d
yr
n .2853576247556405 1.5281e-09 deg/d
Q 2.548863742617885 9.0997e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1046  
   data-arc span      8239 days (22.56 yr)  
   first obs. used      1998-08-31  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59772  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:20:46  

Additional Information
 Earth MOID = 1.0238 au 
 Jupiter MOID = 2.90023 au 
 T_jup = 3.586 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO406372  

52991 (1998 UM25)          Discovered 1998-Oct-18 by Elst, E. W. at La Silla
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 UM25 = 2000 GB13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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