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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1375636634989265 4.9849e-08  
a 2.262134481261415 1.0575e-08 au
q 1.950946974691851 1.1156e-07 au
i 4.369706472541248 4.6734e-06 deg
node 265.990868770635 7.2184e-05 deg
peri 291.9987026379175 7.4523e-05 deg
M 275.5940120186148 1.9752e-05 deg
tp 2457691.871327944036
(2016-Oct-30.37132794)
6.8929e-05 JED
period 1242.727922134931
3.40
8.7146e-06
2.386e-08
d
yr
n .289685291195149 2.0314e-09 deg/d
Q 2.573321987830979 1.203e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1107  
   data-arc span      7214 days (19.75 yr)  
   first obs. used      1996-03-19  
   last obs. used      2015-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55003  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 14:15:36  

Additional Information
 Earth MOID = .953394 au 
 Jupiter MOID = 2.40643 au 
 T_jup = 3.603 
[ 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. 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:
[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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