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227996 (2007 JM38)
Classification: Main-belt Asteroid          SPK-ID: 2227996
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07345774521730583 5.827e-08  
a 2.774415385029201 2.4508e-08 au
q 2.570613086548753 1.6489e-07 au
i 4.242800462346427 6.1371e-06 deg
node 198.6040897330172 8.544e-05 deg
peri 280.2214590599285 0.00010468 deg
M 77.98002256631017 5.4258e-05 deg
tp 2458834.874473514908
(2019-Dec-17.37447351)
0.00025664 TDB
period 1687.93474537284
4.62
2.2366e-05
6.123e-08
d
yr
n .213278387086274 2.826e-09 deg/d
Q 2.97821768350965 2.6308e-08 au
  Orbit Determination Parameters
   # obs. used (total)      177  
   data-arc span      8945 days (24.49 yr)  
   first obs. used      1995-09-26  
   last obs. used      2020-03-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57553  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 02:23:30  

Additional Information
 Earth MOID = 1.59075 au 
 Jupiter MOID = 2.08399 au 
 T_jup = 3.328 
[ 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 17.09   n/a E2021B55  

227996 (2007 JM38)          Discovered 2007-May-12 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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