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13919 (1984 SO4)
Classification: Main-belt Asteroid          SPK-ID: 2013919
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1180701360960251 5.9875e-08  
a 2.27631010634399 9.8054e-09 au
q 2.007545862291198 1.3543e-07 au
i 4.977767267669122 4.4962e-06 deg
node 286.4198930551422 7.5463e-05 deg
peri 54.90758952222622 7.9074e-05 deg
M 62.52363387696411 2.5093e-05 deg
tp 2457182.635094915713
(2015-Jun-09.13509492)
8.7188e-05 JED
period 1254.427501521789
3.43
8.1053e-06
2.219e-08
d
yr
n .2869835040791689 1.8543e-09 deg/d
Q 2.545074350396782 1.0963e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1106  
   data-arc span      11410 days (31.24 yr)  
   first obs. used      1984-09-21  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48273  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:25:49  

Additional Information
 Earth MOID = 1.00154 au 
 Jupiter MOID = 2.78651 au 
 T_jup = 3.594 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a MPO358766  
rotation period rot_per 6.02 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:
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

13919 (1984 SO4)          Discovered 1984-Sep-21 by Debehogne, H. at La Silla
Reference: 20000320/Numbers.arcLast Updated: 2004-04-19

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