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31017 (1996 EH2)
Classification: Main-belt Asteroid          SPK-ID: 2031017
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1376635866114655 4.6354e-08  
a 2.26267475581637 9.8825e-09 au
q 1.951186833595467 1.0485e-07 au
i 4.369060027193452 4.6667e-06 deg
node 265.9797290997367 6.6697e-05 deg
peri 291.9210102951865 6.9237e-05 deg
M 333.6085153791062 1.9877e-05 deg
tp 2457691.636625718832
(2016-Oct-30.13662572)
6.8877e-05 JED
period 1243.173157178313
3.40
8.1445e-06
2.23e-08
d
yr
n .2895815421377892 1.8972e-09 deg/d
Q 2.574162678037273 1.1243e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1158  
   data-arc span      7322 days (20.05 yr)  
   first obs. used      1996-03-19  
   last obs. used      2016-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54122  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:57:16  

Additional Information
 Earth MOID = .953451 au 
 Jupiter MOID = 2.40596 au 
 T_jup = 3.602 
[ 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 14.5 mag n/a MPO309394  
rotation period rot_per 3.9 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:
[Polishook, D. (2009) Minor Planet Bul. 36, 104-107.]

31017 (1996 EH2)          Discovered 1996-Mar-15 by McNaught, R. H. at Siding Spring
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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