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5543 Sharaf (1978 TW2)
Classification: Main-belt Asteroid          SPK-ID: 2005543
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09885753428233665 2.9045e-08  
a 2.255650950065633 6.3986e-09 au
q 2.032662858940534 6.4454e-08 au
i 2.460830942587598 3.8132e-06 deg
node 154.0622145475164 7.844e-05 deg
peri 310.75785228 8.1212e-05 deg
M 33.88900276252902 2.0461e-05 deg
tp 2458884.016996869498
(2020-Feb-04.51699687)
7.0274e-05 TDB
period 1237.389055701193
3.39
5.2652e-06
1.442e-08
d
yr
n .2909351738172586 1.2379e-09 deg/d
Q 2.478639041190732 7.0312e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2118  
   data-arc span      24034 days (65.80 yr)  
   first obs. used      1954-07-28  
   last obs. used      2020-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47372  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:42:40  

Additional Information
 Earth MOID = 1.0505 au 
 Jupiter MOID = 2.61341 au 
 T_jup = 3.616 
[ show covariance matrix ]

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 14.0   n/a MPO416772  
diameter diameter 4.404 km 0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.251   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

5543 Sharaf (1978 TW2)          Discovered 1978-Oct-03 by Chernykh, N. S. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1978 TW2 = 1966 DE = 1968 UT1 = 1978 VN12 = 1983 CE4 = 1985 WV = 1988 RQ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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