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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 ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

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Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05145222502689753 4.256e-08  
a 1.871872281280614 5.6085e-09 au
q 1.775560287442552 7.9655e-08 au
i 18.45614232220984 4.7918e-06 deg
node 259.1821125215127 1.3322e-05 deg
peri 228.9290856245721 4.8784e-05 deg
M 204.3407202507373 4.6949e-05 deg
tp 2459004.969019888396
0.00012194 TDB
period 935.4331292960528
n .3848484608097139 1.7296e-09 deg/d
Q 1.968184275118676 5.8971e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1838  
   data-arc span      24568 days (67.26 yr)  
   first obs. used      1952-07-25  
   last obs. used      2019-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37315  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:12:14  

Additional Information
 Earth MOID = .814431 au 
 Jupiter MOID = 3.18842 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 13.27   n/a PDS3 (MPC 17264)  
diameter diameter 3.767 km 0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 2.6717 h n/a LCDB (Rev. 2019-January); 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] (  
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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