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JPL Small-Body Database Browser
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442606 (2012 JM18)
Classification: Inner Main-belt Asteroid          SPK-ID: 2442606
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .122204109814014 7.0627e-08  
a 1.931632414742525 2.6781e-08 au
q 1.69557899501102 1.4184e-07 au
i 23.90828281567442 1.484e-05 deg
node 111.0414139394089 1.9686e-05 deg
peri 274.6330784221045 6.7213e-05 deg
M 66.32376836577846 6.4628e-05 deg
tp 2458419.844225897080
(2018-Oct-28.34422590)
0.00017633 TDB
period 980.5847930469594
2.68
2.0393e-05
5.583e-08
d
yr
n .3671278634470521 7.6351e-09 deg/d
Q 2.167685834474029 3.0054e-08 au
  Orbit Determination Parameters
   # obs. used (total)      78  
   data-arc span      4788 days (13.11 yr)  
   first obs. used      2005-11-29  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .71306  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:41:58  

Additional Information
 Earth MOID = .839225 au 
 Jupiter MOID = 3.22968 au 
 T_jup = 3.799 
[ 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 17.9   n/a MPO402747  

442606 (2012 JM18)          Discovered 2005-Nov-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

Alternate Designations
 2012 JM18 = 2005 WP186 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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