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19963 (1986 TR)
Classification: Main-belt Asteroid          SPK-ID: 2019963
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .30929330991995 4.6603e-08  
a 2.668339401565832 1.3182e-08 au
q 1.843039876065717 1.2934e-07 au
i 9.756283661357045 4.3041e-06 deg
node 251.213071246741 2.5459e-05 deg
peri 89.57918789187741 2.638e-05 deg
M 319.6556171686665 9.9445e-06 deg
tp 2459378.918796726442
(2021-Jun-13.41879673)
4.5079e-05 TDB
period 1592.062198349811
4.36
1.1797e-05
3.23e-08
d
yr
n .226121818841716 1.6756e-09 deg/d
Q 3.493638927065946 1.7259e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1270  
   data-arc span      12378 days (33.89 yr)  
   first obs. used      1986-10-02  
   last obs. used      2020-08-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51943  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:10:21  

Additional Information
 Earth MOID = .864502 au 
 Jupiter MOID = 2.07874 au 
 T_jup = 3.292 
[ 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 13.94   n/a E2021B10  
diameter diameter 5.459 km 1.586 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.196   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19963 (1986 TR)          Discovered 1986-Oct-04 by Jensen, P. at Brorfelde
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1986 TR = 1995 WR 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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