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79128 (1990 SB13)
Classification: Main-belt Asteroid          SPK-ID: 2079128
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2331149285322866 6.4296e-08  
a 2.385666369158612 1.434e-08 au
q 1.829531924010322 1.585e-07 au
i .421948851199144 6.4146e-06 deg
node 192.7817920709723 0.00071737 deg
peri 139.1732508976804 0.00071769 deg
M 18.59581635934735 1.2901e-05 deg
tp 2457530.977442923349
(2016-May-22.47744292)
4.7884e-05 JED
period 1345.900608177051
3.68
1.2135e-05
3.322e-08
d
yr
n .267478889460939 2.4117e-09 deg/d
Q 2.941800814306901 1.7683e-08 au
  Orbit Determination Parameters
   # obs. used (total)      660  
   data-arc span      9009 days (24.67 yr)  
   first obs. used      1990-09-22  
   last obs. used      2015-05-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55961  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 18:44:45  

Additional Information
 Earth MOID = .818332 au 
 Jupiter MOID = 2.41743 au 
 T_jup = 3.498 
[ 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 15.8 mag n/a MPO250888  
rotation period rot_per 4.3 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

79128 (1990 SB13)          Discovered 1990-Sep-22 by Debehogne, H. at La Silla
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1990 SB13 = 2000 GR183 = 2001 MP23 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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