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10841 Ericforbes (1994 PP1)
Classification: Inner Main-belt Asteroid          SPK-ID: 2010841
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05410144411400826 9.4104e-08  
a 1.938787578306713 1.5938e-08 AU
q 1.833896370490019 1.8739e-07 AU
i 23.39288913620868 9.5385e-06 deg
node 60.03770431326566 1.9003e-05 deg
peri 190.3545367087963 9.3435e-05 deg
M 253.6147971076263 0.00010121 deg
tp 2457291.888558581835
(2015-Sep-26.38855858)
0.00027907 JED
period 986.0382669531979
2.70
1.2159e-05
3.329e-08
d
yr
n .3650973923277638 4.502e-09 deg/d
Q 2.043678786123408 1.68e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      483  
   data-arc span      8254 days (22.60 yr)  
   first obs. used      1989-11-02  
   last obs. used      2012-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53302  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:55:55  

Additional Information
 Earth MOID = .824017 AU 
 T_jup = 3.803 
[ 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 15.0 mag n/a MPO233581  

10841 Ericforbes           Discovered 1994 Aug. 12 by R. H. McNaught at Siding Spring.
Eric Gray Forbes (1933-1984) was a professor and director of the History of Medicine and Science Unit at Edinburgh University. Forbes led `Scotland's Cultural Heritage' group and was a prolific author, researching extensively on the history of astronomy and navigation.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-07-12Last Updated: 2014-08-13

Alternate Designations
 1994 PP1 = 1989 VG4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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