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2083 Smither (1973 WB)
Classification: Inner Main-belt Asteroid          SPK-ID: 2002083
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05136006664726072 1.4191e-08  
a 1.871884515243027 4.6503e-09 au
q 1.77574440178417 2.6379e-08 au
i 18.45554688079777 5.7908e-07 deg
node 259.1792762606752 8.2046e-07 deg
peri 228.6413785399425 1.2971e-05 deg
M 75.51473951729491 1.3618e-05 deg
tp 2459004.278662203472
(2020-Jun-03.77866220)
3.5104e-05 TDB
period 935.4422998515633
2.56
3.4859e-06
9.544e-09
d
yr
n .3848446879696643 1.4341e-09 deg/d
Q 1.968024628701884 4.8891e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2232  
   data-arc span      25043 days (68.56 yr)  
   first obs. used      1952-07-25  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36037  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:18:58  

Additional Information
 Earth MOID = .814037 au 
 Jupiter MOID = 3.18704 au 
 T_jup = 3.916 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.15   n/a E2021B10  
diameter diameter 3.767 km 0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 2.6717 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2007) Minor Planet Bull. 34, 8-10.]
[Warner, B.D. (2010) Minor Planet Bull. 37, 57-64.]
[Warner, B.D (2012) Minor Planet Bull. 39, 16-21.]
[Warner, B.D. (2015) Minor Planet Bull. 42, 132-136.]
[Warner, B.D. (2017) Minor Planet Bull. 44, 12-19.]
geometric albedo albedo 0.613   0.194 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.721   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=8.34, mean=14.59, max.=20.83) deg.
U-B UB 0.223   0.027 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=8.34, mean=14.59, max.=20.83) deg.
Tholen spectral type spec_T X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

2083 Smither (1973 WB)          Discovered 1973-Nov-29 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1973 WB = 1950 XQ = 1952 OE = 1968 WB = 1978 WA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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