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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1866291940173387 5.0278e-08  
a 2.189679323173738 1.1069e-08 au
q 1.781021235933391 1.0907e-07 au
i 3.608897765777894 4.4187e-06 deg
node 88.67708765486624 9.52e-05 deg
peri 218.9040695093745 9.7269e-05 deg
M 13.85068790448283 2.4122e-05 deg
tp 2457554.965764883096
(2016-Jun-15.46576488)
7.9107e-05 JED
period 1183.502563564361
3.24
8.9737e-06
2.457e-08
d
yr
n .3041818506212491 2.3064e-09 deg/d
Q 2.598337410414084 1.3134e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1300  
   data-arc span      21525 days (58.93 yr)  
   first obs. used      1957-04-28  
   last obs. used      2016-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51136  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:01:21  

Additional Information
 Earth MOID = .767467 au 
 Jupiter MOID = 2.63662 au 
 T_jup = 3.648 
[ 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. 2016-February); 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. (2016) 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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