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6615 Plutarchos (9512 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2006615
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .126985520216302 3.1604e-08  
a 2.169631510116623 5.0725e-09 au
q 1.894119724126783 6.7932e-08 au
i 1.797791075178268 2.8442e-06 deg
node 129.3579024844053 0.00010406 deg
peri 81.24178205416185 0.00010484 deg
M 143.7054073322506 1.1441e-05 deg
tp 2458930.540677067932
(2020-Mar-22.04067707)
3.7452e-05 TDB
period 1167.286321159181
3.20
4.0936e-06
1.121e-08
d
yr
n .3084076232834628 1.0816e-09 deg/d
Q 2.445143296106464 5.7166e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2118  
   data-arc span      22209 days (60.80 yr)  
   first obs. used      1960-10-17  
   last obs. used      2021-08-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4833  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 18:50:36  

Additional Information
 Earth MOID = .890146 au 
 Jupiter MOID = 2.51408 au 
 T_jup = 3.679 
[ 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 14.7   n/a MPO467717  
diameter diameter 3.139 km 0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.3247 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Oey, J.; Pray, D.P.; Pravec, P. (2007) Minor Planet Bull. 34, 101.]
geometric albedo albedo 0.412   0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6615 Plutarchos (9512 P-L)          Discovered 1960-Oct-17 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 9512 P-L = 1991 EW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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