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JPL Small-Body Database Browser
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138628 (2000 QM251)
Classification: TransNeptunian Object          SPK-ID: 2138628
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2702375390385628 0.00012326  
a 44.85224521035978 0.012497 au
q 32.73148484435799 0.0038077 au
i 15.6858782434073 0.00030945 deg
node 355.5451585017093 0.00020874 deg
peri 313.7882551540886 0.029528 deg
M 50.04936293343189 0.03568 deg
tp 2443746.955912839050
(1978-Aug-26.45591284)
4.5236 TDB
period 109717.1981725643
300.39
45.854
0.1255
d
yr
n .003281162898762584 1.3713e-06 deg/d
Q 56.97300557636157 0.015874 au
  Orbit Determination Parameters
   # obs. used (total)      32  
   data-arc span      6594 days (18.05 yr)  
   first obs. used      2000-08-25  
   last obs. used      2018-09-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .53996  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:42:02  

Additional Information
 Earth MOID = 31.7372 au 
 Jupiter MOID = 27.7495 au 
 T_jup = 5.559 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.2   n/a MPO469460  

138628 (2000 QM251)          Discovered 2000-Aug-25 by Buie, M. W. at Cerro Tololo
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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