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160318 (2003 JR8)
Classification: Main-belt Asteroid          SPK-ID: 2160318
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1777894529262139 7.1158e-08  
a 3.101909661212686 3.1368e-08 au
q 2.550422839519145 2.2811e-07 au
i 20.18696925644236 7.3613e-06 deg
node 76.85151212820563 1.5113e-05 deg
peri 150.0697143599544 2.0062e-05 deg
M 335.2954754043213 1.19e-05 deg
tp 2458737.435529410498
(2019-Sep-10.93552941)
6.6183e-05 TDB
period 1995.455949652325
5.46
3.0268e-05
8.287e-08
d
yr
n .1804098958249236 2.7365e-09 deg/d
Q 3.653396482906227 3.6944e-08 au
  Orbit Determination Parameters
   # obs. used (total)      502  
   data-arc span      6316 days (17.29 yr)  
   first obs. used      2002-01-21  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56201  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:33:06  

Additional Information
 Earth MOID = 1.55592 au 
 Jupiter MOID = 1.44512 au 
 T_jup = 3.104 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO302756  
rotation period rot_per 21.83 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Galad, A. (2010) Astron. Astrophys. 514, A55.]

160318 (2003 JR8)          Discovered 2003-May-02 by LINEAR at Socorro
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06

[ show close-approach data ]
Alternate Designations
 2003 JR8 = 2002 DP9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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