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3226 Plinius (6565 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2003226
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 75 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07475182872787477 2.1895e-08  
a 2.874249951845441 1.0964e-08 au
q 2.659394511723988 6.1886e-08 au
i 3.060637691461668 8.2732e-07 deg
node 98.82482881509446 9.32e-06 deg
peri 305.1738309883881 1.646e-05 deg
M 92.06064197820525 1.1774e-05 deg
tp 2458745.347718178542
(2019-Sep-18.84771818)
5.7588e-05 TDB
period 1779.857471497066
4.87
1.0184e-05
2.788e-08
d
yr
n .2022633866841025 1.1573e-09 deg/d
Q 3.089105391966894 1.1784e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2696  
   data-arc span      25290 days (69.24 yr)  
   first obs. used      1951-12-27  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46761  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:49:32  

Additional Information
 Earth MOID = 1.66885 au 
 Jupiter MOID = 2.20701 au 
 T_jup = 3.291 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.30   n/a MPCxxxxx  
diameter diameter 7.020 km 0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.206   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3226 Plinius (6565 P-L)          Discovered 1960-Sep-24 by PLS at Palomar
These planets have all been discovered as a result of the Palomar survey of faint minor planets and subsequently identified with planets observed at other oppositions. In Sept. and Oct. 1960, T. Gehrels exposed 130 plates with the 122 cm Schmidt camera at Palomar. In the following years C. J. van Houten and I. van Houten-Groeneveld measured these plates astrometrically and photometrically at Leiden. P. Herget, Cincinnati, computed the orbits of the planets found on the NORC computer, Dahlgren, Virginia, USA.
Note: "planet" implies "minor planet"
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 6565 P-L = 1977 DR = 1982 DT3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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