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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .122226024623446 7.0704e-08  
a 1.931482957111615 1.999e-08 au
q 1.695405473635925 1.4123e-07 au
i 23.90878597739744 9.3994e-06 deg
node 111.0422016197441 1.9316e-05 deg
peri 274.5351595691088 5.0551e-05 deg
M 213.2997101209445 5.5657e-05 deg
tp 2459400.042717093897
(2021-Jul-04.54271709)
0.00015472 TDB
period 980.4709879740908
2.68
1.5221e-05
4.167e-08
d
yr
n .3671704766541374 5.7002e-09 deg/d
Q 2.167560440587306 2.2434e-08 au
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      5264 days (14.41 yr)  
   first obs. used      2005-11-29  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64447  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 03:53:58  

Additional Information
 Earth MOID = .839418 au 
 Jupiter MOID = 3.22939 au 
 T_jup = 3.800 
[ 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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