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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1216619639175381 4.0906e-08  
a 3.185942861954693 2.0649e-08 au
q 2.798334796440224 1.2993e-07 au
i 18.39802177349673 4.6058e-06 deg
node 252.4539693044903 1.565e-05 deg
peri 290.99038559 2.5227e-05 deg
M 104.0210643291872 2.0434e-05 deg
tp 2458000.330124072549
(2017-Sep-03.83012407)
0.00011674 TDB
period 2077.090411708641
5.69
2.0193e-05
5.529e-08
d
yr
n .1733193692343221 1.685e-09 deg/d
Q 3.573550927469163 2.3161e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2257  
   data-arc span      23561 days (64.51 yr)  
   first obs. used      1955-04-26  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43073  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:12:15  

Additional Information
 Earth MOID = 1.85764 au 
 Jupiter MOID = 1.67894 au 
 T_jup = 3.107 
[ 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-January); 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

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