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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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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.


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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
(2020-Jun-04.46901989)
0.00012194 TDB
period 935.4331292960528
2.56
4.2041e-06
1.151e-08
d
yr
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 
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Orbital Elements at Epoch 2456829.5 (2014-Jun-21.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05117332935605379 4.2558e-08  
q 1.776173169094778 7.9629e-08 au
tp 2457133.961841478225
(2015-Apr-21.46184148)
0.00012311 TDB
node 259.2116502866584 1.3323e-05 deg
peri 228.9442652625481 4.9031e-05 deg
i 18.45449737498464 4.7914e-06 deg
  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
 Jupiter MOID = 3.18842 au 
 T_jup = 3.916 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.811179373163526E-15 -3.38126459417943E-15 -4.921897017928764E-13 -3.943941911824699E-15 -1.215733002150821E-13 2.790876249439389E-15
q -3.38126459417943E-15 6.340714598592632E-15 8.5984810901419E-13 7.228161760379763E-15 2.008705277208616E-13 -5.411906514931542E-15
tp -4.921897017928764E-13 8.5984810901419E-13 1.515498448479727E-8 -1.000437627113992E-11 5.81652027021975E-9 2.715449013408723E-11
node -3.943941911824699E-15 7.228161760379763E-15 -1.000437627113992E-11 1.775123477239573E-10 -1.712450416727013E-10 1.79437090610498E-12
peri -1.215733002150821E-13 2.008705277208616E-13 5.81652027021975E-9 -1.712450416727013E-10 2.403996057695511E-9 9.020315173153652E-12
i 2.790876249439389E-15 -5.411906514931542E-15 2.715449013408723E-11 1.79437090610498E-12 9.020315173153652E-12 2.295796228184915E-11

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] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
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] (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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