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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2039849025856919 1.7165e-08  
a 2.188459786255675 4.9813e-09 au
q 1.742047029943607 3.7707e-08 au
i 4.236176339002317 1.0955e-06 deg
node 304.4577445058505 4.5827e-06 deg
peri 28.85158171348359 7.008e-06 deg
M 302.8734682526637 5.0883e-06 deg
tp 2459388.147006350188
(2021-Jun-22.64700635)
1.7099e-05 TDB
period 1182.513977653079
3.24
4.0374e-06
1.105e-08
d
yr
n .3044361477354269 1.0394e-09 deg/d
Q 2.634872542567743 5.9974e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2851  
   data-arc span      24416 days (66.85 yr)  
   first obs. used      1953-10-13  
   last obs. used      2020-08-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43656  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 12:54:14  

Additional Information
 Earth MOID = .731127 au 
 Jupiter MOID = 2.7292 au 
 T_jup = 3.644 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456657.5 (2013-Dec-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2044440805404664 1.7233e-08  
q 1.740822277984923 3.7873e-08 au
tp 2457022.144351209824
(2014-Dec-30.64435121)
1.365e-05 TDB
node 304.5625018040946 4.5706e-06 deg
peri 28.63254007830615 6.9796e-06 deg
i 4.239756029217206 1.0963e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2851  
   data-arc span      24416 days (66.85 yr)  
   first obs. used      1953-10-13  
   last obs. used      2020-08-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43656  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 12:54:14  

Additional Information
 Jupiter MOID = 2.7292 au 
 T_jup = 3.644 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.969925589522831E-16 -6.490533401219911E-16 -1.858490832344409E-13 -7.062654059514181E-16 -6.526083837874138E-14 -3.388486241539833E-15
q -6.490533401219911E-16 1.434361049366333E-15 4.161532717714115E-13 6.184009644929995E-16 1.468736166113282E-13 7.605628631288461E-15
tp -1.858490832344409E-13 4.161532717714115E-13 1.86330391253391E-10 -1.279899657487691E-11 7.474025452569171E-11 3.530521156033261E-12
node -7.062654059514181E-16 6.184009644929995E-16 -1.279899657487691E-11 2.089077134665762E-11 -2.412147474957324E-11 3.763351018070929E-12
peri -6.526083837874138E-14 1.468736166113282E-13 7.474025452569171E-11 -2.412147474957324E-11 4.871519792851254E-11 -2.73240507723389E-12
i -3.388486241539833E-15 7.605628631288461E-15 3.530521156033261E-12 3.763351018070929E-12 -2.73240507723389E-12 1.201961625793343E-12

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 12.86   n/a E2021B10  
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. 2020-October); 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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