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1763 Williams (1953 TN2)
Classification: Main-belt Asteroid          SPK-ID: 2001763
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2038934878816997 2.8839e-08  
a 2.188330378318718 5.8814e-09 au
q 1.742144064845835 6.3664e-08 au
i 4.236182559364311 3.2847e-06 deg
node 304.4581606763717 4.6387e-05 deg
peri 28.86753109783631 4.7389e-05 deg
M 241.955898344345 1.2302e-05 deg
tp 2459388.212275359360
(2021-Jun-22.71227536)
4.1332e-05 TDB
period 1182.409092633246
3.24
4.7668e-06
1.305e-08
d
yr
n .3044631525949057 1.2274e-09 deg/d
Q 2.634516691791601 7.0806e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2798  
   data-arc span      24416 days (66.85 yr)  
   first obs. used      1953-10-13  
   last obs. used      2020-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43492  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:15:44  

Additional Information
 Earth MOID = .733138 au 
 Jupiter MOID = 2.72953 au 
 T_jup = 3.644 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456570.5 (2013-Oct-05.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2044791216376166 2.8911e-08  
q 1.740645145127768 6.3868e-08 au
tp 2457022.163635428064
(2014-Dec-30.66363543)
3.6113e-05 TDB
node 304.5647286475095 4.633e-05 deg
peri 28.64535083121219 4.7326e-05 deg
i 4.239825947679445 3.2864e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2798  
   data-arc span      24416 days (66.85 yr)  
   first obs. used      1953-10-13  
   last obs. used      2020-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43492  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:15:44  

Additional Information
 Jupiter MOID = 2.72953 au 
 T_jup = 3.644 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.358265267263601E-16 -1.841543993267872E-15 -4.567207871607334E-14 2.935633837269541E-15 -1.027727850127722E-14 5.817885650422527E-16
q -1.841543993267872E-15 4.079081244421462E-15 1.72566143302762E-13 -6.962423381894544E-15 3.905567801828678E-14 -1.181792726037074E-15
tp -4.567207871607334E-14 1.72566143302762E-13 1.304180193431744E-9 -9.072525998860043E-12 3.597410971988371E-10 6.367351467942757E-13
node 2.935633837269541E-15 -6.962423381894544E-15 -9.072525998860043E-12 2.146512072123501E-9 -2.142565564068594E-9 -6.682182967109283E-12
peri -1.027727850127722E-14 3.905567801828678E-14 3.597410971988371E-10 -2.142565564068594E-9 2.23971113441094E-9 6.815580913867239E-12
i 5.817885650422527E-16 -1.181792726037074E-15 6.367351467942757E-13 -6.682182967109283E-12 6.815580913867239E-12 1.080061460188889E-11

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 12.8   n/a MPO309159  
diameter diameter 6.982 km 0.183 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 36. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2008) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.330   0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1763 Williams (1953 TN2)          Discovered 1953-Oct-13 by Goethe Link Observatory at Brooklyn
Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1953 TN2 = 1939 EO = 1953 VJ = 1966 TN 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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