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7085 (1991 PE)
Classification: Main-belt Asteroid          SPK-ID: 2007085
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2573841290507571 4.6777e-08  
a 3.090576691164443 2.4652e-08 au
q 2.295111301244512 1.4179e-07 au
i 2.746571155978553 5.2091e-06 deg
node 121.5659679582942 0.00013996 deg
peri 195.3000066668973 0.00014074 deg
M 189.8294368476685 1.4769e-05 deg
tp 2458338.579508929622
(2018-Aug-08.07950893)
8.7423e-05 JED
period 1984.530208743314
5.43
2.3745e-05
6.501e-08
d
yr
n .1814031343105463 2.1705e-09 deg/d
Q 3.886042081084374 3.0998e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1281  
   data-arc span      11163 days (30.56 yr)  
   first obs. used      1985-05-24  
   last obs. used      2015-12-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45808  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:02:34  

Additional Information
 Earth MOID = 1.27984 au 
 Jupiter MOID = 1.42253 au 
 T_jup = 3.171 
[ 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 12.6 mag n/a MPO279589  
rotation period rot_per 3.6146 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

7085 (1991 PE)          Discovered 1991-Aug-05 by Holt, H. E. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1991 PE = 1986 TE1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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