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56274 (1999 JM104)
Classification: Main-belt Asteroid          SPK-ID: 2056274
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1518796486811496 4.0372e-08  
a 2.772731602334333 1.438e-08 au
q 2.351610100684674 1.0804e-07 au
i 15.9245971621232 5.2466e-06 deg
node 166.0246103010807 1.5853e-05 deg
peri 147.3518098333493 2.4356e-05 deg
M 119.4238267358203 1.96e-05 deg
tp 2458441.066256958149
(2018-Nov-18.56625696)
9.0242e-05 TDB
period 1686.39837626857
4.62
1.3119e-05
3.592e-08
d
yr
n .2134726913083007 1.6607e-09 deg/d
Q 3.193853103983993 1.6564e-08 au
  Orbit Determination Parameters
   # obs. used (total)      980  
   data-arc span      9724 days (26.62 yr)  
   first obs. used      1994-04-03  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55461  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:38:11  

Additional Information
 Earth MOID = 1.35389 au 
 Jupiter MOID = 2.23447 au 
 T_jup = 3.264 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO449364  

56274 (1999 JM104)          Discovered 1999-May-15 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JM104 = 2000 OP43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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