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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1144660261939826 4.4642e-08  
a 2.740623253451942 1.7179e-08 au
q 2.426915000334474 1.2103e-07 au
i 4.390449392477804 5.8647e-06 deg
node 352.1217991801473 5.8395e-05 deg
peri 262.7105990479631 6.3732e-05 deg
M 119.1709645093428 2.562e-05 deg
tp 2456851.919472397305
(2014-Jul-13.41947240)
0.00011832 JED
period 1657.190497283317
4.54
1.5582e-05
4.266e-08
d
yr
n .2172351341563683 2.0426e-09 deg/d
Q 3.05433150656941 1.9146e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1393  
   data-arc span      15058 days (41.23 yr)  
   first obs. used      1974-09-11  
   last obs. used      2015-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49959  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:05:58  

Additional Information
 Earth MOID = 1.41602 au 
 Jupiter MOID = 2.00417 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 13.0 mag n/a MPO347590  
rotation period rot_per 4.0893 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.]

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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