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JPL Small-Body Database Browser
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48962 (1998 QH31)
Classification: Main-belt Asteroid          SPK-ID: 2048962
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | 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 .1863192616508707 4.9932e-08  
a 2.373705882276287 1.5349e-08 au
q 1.93143875491424 1.2071e-07 au
i 3.92737980606945 5.0115e-06 deg
node 107.8494080546757 8.2437e-05 deg
peri 204.7395637393504 8.4527e-05 deg
M 247.0946669508696 2.4732e-05 deg
tp 2459019.438951369166
(2020-Jun-18.93895137)
9.4139e-05 TDB
period 1335.791839232887
3.66
1.2957e-05
3.547e-08
d
yr
n .2695030688364883 2.6141e-09 deg/d
Q 2.815973009638333 1.8209e-08 au
  Orbit Determination Parameters
   # obs. used (total)      542  
   data-arc span      7572 days (20.73 yr)  
   first obs. used      1998-07-31  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62588  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:48:40  

Additional Information
 Earth MOID = .917231 au 
 Jupiter MOID = 2.45313 au 
 T_jup = 3.516 
[ 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 16.0   n/a MPO432047  

48962 (1998 QH31)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QH31 = 1999 XE254 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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