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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2555740051279747 4.6568e-08  
a 3.094566775552145 2.4793e-08 au
q 2.303675950588321 1.4104e-07 au
i 2.743755096952945 5.146e-06 deg
node 121.525923340931 0.00012205 deg
peri 195.3375227020915 0.00012278 deg
M 225.9862830637906 1.4491e-05 deg
tp 2458340.692987875164
(2018-Aug-10.19298788)
8.5596e-05 JED
period 1988.37463602251
5.44
2.3895e-05
6.542e-08
d
yr
n .1810524000246422 2.1758e-09 deg/d
Q 3.885457600515969 3.1129e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1410  
   data-arc span      11269 days (30.85 yr)  
   first obs. used      1985-05-24  
   last obs. used      2016-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46068  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:57:58  

Additional Information
 Earth MOID = 1.28984 au 
 Jupiter MOID = 1.42391 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. 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) 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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