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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1180143263454341 5.9203e-08  
a 2.27617225068184 9.618e-09 au
q 2.007551315871452 1.3362e-07 au
i 4.97789192101633 4.4376e-06 deg
node 286.4186785146018 7.3505e-05 deg
peri 54.87582392727272 7.7213e-05 deg
M 119.9634033287385 2.511e-05 deg
tp 2457182.522993901703
(2015-Jun-09.02299390)
8.7015e-05 JED
period 1254.313549133363
3.43
7.9502e-06
2.177e-08
d
yr
n .2870095760734891 1.8191e-09 deg/d
Q 2.544793185492229 1.0753e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1163  
   data-arc span      11510 days (31.51 yr)  
   first obs. used      1984-09-21  
   last obs. used      2016-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48871  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:17:56  

Additional Information
 Earth MOID = 1.00274 au 
 Jupiter MOID = 2.7878 au 
 T_jup = 3.595 
[ 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. 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.; 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. (2016) 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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