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7061 Pieri (1991 PE1)
Classification: Main-belt Asteroid          SPK-ID: 2007061
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: MPO233557 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.2544961 n/a  
a 3.1264188 n/a AU
q 2.3307574 n/a AU
i 18.96644 n/a deg
node 137.53434 n/a deg
peri 173.73733 n/a deg
M 337.87418 n/a deg
tp 2456524.5983572
(2013-Aug-20.09835720)		 n/a JED
period 2019.1526727
5.53		 n/a
n/a		 d
yr
n 0.17829261 n/a deg/d
Q 3.9220802 n/a AU
   Orbit Determination Parameters
   # obs. used (total)      723  
   first obs. used      1990-??-??  
   last obs. used      2012-06-16  
   # oppositions      16  
   planetary ephem.      DE403  
   condition code      0  
   fit RMS      0.55  
   data source      MPC:mpn  
   producer      MPCLINUX  

Additional Information
 T_jup = 3.082 

[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.6 mag n/a PDS3 (MPC 28116)  

7061 Pieri           Discovered 1991 Aug. 15 by E. F. Helin at Palomar.
David C. Pieri (b. 1949), a staff scientist in the Earth and Space Sciences Division at the Jet Propulsion Laboratory since 1979, has research interests in volcanology, fluvial geomorphology, and planetary geology.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000320/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1991 PE1 = 1990 HH3 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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