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48901 (1998 MO31)
Classification: Main-belt Asteroid          SPK-ID: 2048901
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2385407011057971 3.5132e-08  
a 2.346209611243268 8.7164e-09 au
q 1.786543125636139 8.0859e-08 au
i 1.681705181574932 4.081e-06 deg
node 82.88638536992487 0.00015948 deg
peri 186.2184543829379 0.00015981 deg
M 45.95075167461661 1.192e-05 deg
tp 2458832.952188104503
(2019-Dec-15.45218810)
4.2903e-05 TDB
period 1312.649088082241
3.59
7.3149e-06
2.003e-08
d
yr
n .2742545614578182 1.5283e-09 deg/d
Q 2.905876096850398 1.0796e-08 au
  Orbit Determination Parameters
   # obs. used (total)      863  
   data-arc span      9713 days (26.59 yr)  
   first obs. used      1994-04-03  
   last obs. used      2020-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58279  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:50:05  

Additional Information
 Earth MOID = .770463 au 
 Jupiter MOID = 2.19888 au 
 T_jup = 3.521 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456747.5 (2014-Mar-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2393590687633318 3.526e-08  
q 1.784293575774863 8.1161e-08 au
tp 2456206.357360301834
(2012-Oct-05.85736030)
3.5893e-05 TDB
node 82.92216165966765 0.00015921 deg
peri 186.0724751122312 0.00015952 deg
i 1.682992880594793 4.0864e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      863  
   data-arc span      9713 days (26.59 yr)  
   first obs. used      1994-04-03  
   last obs. used      2020-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58279  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:50:05  

Additional Information
 Jupiter MOID = 2.19888 au 
 T_jup = 3.521 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.243295244814817E-15 -2.853058372630336E-15 2.068361442080456E-14 6.694110172663175E-15 2.185238079190208E-14 1.055703343044248E-16
q -2.853058372630336E-15 6.587062604762349E-15 2.361032664149659E-14 -1.520004388069201E-14 -2.684298750732182E-14 -1.998869484906358E-16
tp 2.068361442080456E-14 2.361032664149659E-14 1.288271612618478E-9 1.757041355755014E-12 3.823156766123048E-10 3.147137336462592E-13
node 6.694110172663175E-15 -1.520004388069201E-14 1.757041355755014E-12 2.534711238928991E-8 -2.533506949804854E-8 -6.378253991903447E-11
peri 2.185238079190208E-14 -2.684298750732182E-14 3.823156766123048E-10 -2.533506949804854E-8 2.54481985969506E-8 6.384394180646105E-11
i 1.055703343044248E-16 -1.998869484906358E-16 3.147137336462592E-13 -6.378253991903447E-11 6.384394180646105E-11 1.669883926078137E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO324747  

48901 (1998 MO31)          Discovered 1998-Jun-24 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 MO31 = 2001 DA93 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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