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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2687356716262345 0.00012178  
a 44.69267449869727 0.012398 au
q 32.68215860051717 0.0038426 au
i 15.70617561783011 0.00030984 deg
node 355.591866431687 0.00020829 deg
peri 313.193339595432 0.029875 deg
M 49.32551217652555 0.035495 deg
tp 2443647.716463072444
(1978-May-19.21646307)
4.5614 TDB
period 109132.2083799008
298.79
45.409
0.1243
d
yr
n .003298751169286356 1.3726e-06 deg/d
Q 56.70319039687736 0.015729 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 = 31.6875 au 
 Jupiter MOID = 27.6996 au 
 T_jup = 5.551 
[ 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 7.1   n/a MPO157310  

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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