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8160 (1990 MG)
Classification: Main-belt Asteroid          SPK-ID: 2008160
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1865354625432592 5.0462e-08  
a 2.189448027115537 1.1189e-08 au
q 1.781038326663114 1.0936e-07 au
i 3.609010771034734 4.4585e-06 deg
node 88.67775451696444 9.5984e-05 deg
peri 218.907064969524 9.8077e-05 deg
M 313.0034342432791 2.4083e-05 deg
tp 2457554.977065213090
(2016-Jun-15.47706521)
7.9826e-05 JED
period 1183.315048265191
3.24
9.0706e-06
2.483e-08
d
yr
n .3042300531272554 2.3321e-09 deg/d
Q 2.59785772756796 1.3276e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1296  
   data-arc span      21208 days (58.06 yr)  
   first obs. used      1957-04-28  
   last obs. used      2015-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49868  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:00:36  

Additional Information
 Earth MOID = .766013 au 
 Jupiter MOID = 2.63581 au 
 T_jup = 3.649 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO337324  
rotation period rot_per 3.7186 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

8160 (1990 MG)          Discovered 1990-Jun-21 by Holt, H. E. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1990 MG = 1958 VN = 1979 BY2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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