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8025 Forrestpeterson (1991 FB4)
Classification: Main-belt Asteroid          SPK-ID: 2008025
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .114267210851953 4.9916e-08  
a 2.740850654837932 2.037e-08 AU
q 2.427661295147853 1.3999e-07 AU
i 4.39030011882771 6.1726e-06 deg
node 352.123525563814 6.8678e-05 deg
peri 262.7751331030821 7.3944e-05 deg
M 32.2405206980397 2.749e-05 deg
tp 2456852.068515332290
(2014-Jul-13.56851533)
0.00012664 JED
period 1657.396757975578
4.54
1.8477e-05
5.059e-08
d
yr
n .2172080995498754 2.4214e-09 deg/d
Q 3.054040014528012 2.2697e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1197  
   data-arc span      14953 days (40.94 yr)  
   first obs. used      1974-09-11  
   last obs. used      2015-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47675  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:23:44  

Additional Information
 Earth MOID = 1.4195 AU 
 T_jup = 3.336 
[ 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 12.9 mag n/a MPO263420  
rotation period rot_per 4.0893 h n/a LCDB (Rev. 2015-July); 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., in press.]

8025 Forrestpeterson           Discovered 1991 Mar. 22 by H. Debehogne at the European Southern Observatory.
Navy test pilot Forrest Peterson (1922-1990) was the fourth pilot, and the only Navy pilot, to fly the X-15 and made a total of five flights.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120207/MPCPages.arcLast Updated: 2012-02-09

[ show close-approach data ]
Alternate Designations
 1991 FB4 = 1974 RS = 1992 PR5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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