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JPL Small-Body Database Browser
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2104 Toronto (1963 PD)
Classification: Main-belt Asteroid          SPK-ID: 2002104
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1218134227088096 4.0749e-08  
a 3.18446241574418 2.0322e-08 au
q 2.796552149394817 1.2901e-07 au
i 18.39774182069993 4.5438e-06 deg
node 252.4494312889036 1.5628e-05 deg
peri 290.7295899715419 2.5097e-05 deg
M 173.6818912815661 2.0516e-05 deg
tp 2457999.106755987307
(2017-Sep-02.60675599)
0.00011606 TDB
period 2075.642804120199
5.68
1.9869e-05
5.44e-08
d
yr
n .1734402466962965 1.6602e-09 deg/d
Q 3.572372682093544 2.2797e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2379  
   data-arc span      23631 days (64.70 yr)  
   first obs. used      1955-04-26  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42235  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:12:35  

Additional Information
 Earth MOID = 1.85601 au 
 Jupiter MOID = 1.68141 au 
 T_jup = 3.108 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.8   n/a MPO350816  
diameter diameter 35.874 km 0.503 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.97 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Oey, J. (2006) Minor Planet Bull. 33, 96-99.]
[Aznar, A.; Garceran, A.C.; Mansego, E.A.; Rodriguez, P.B.; et al. (2016) Minor Planet Bull. 43, 174-181.]
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]
geometric albedo albedo 0.104   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2104 Toronto (1963 PD)          Discovered 1963-Aug-15 by Kamper, K. W. at Tautenburg
on plates taken by S. van den Bergh.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1963 PD = 1955 HW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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