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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09872841222435823 1.3366e-08  
a 2.255258569521724 5.4547e-09 au
q 2.032600471797466 3.1419e-08 au
i 2.461014702004273 7.6794e-07 deg
node 154.0633560682626 2.3494e-05 deg
peri 310.6260453997805 2.3169e-05 deg
M 149.262649487095 1.2583e-05 deg
tp 2458883.589505653371
(2020-Feb-04.08950565)
4.2678e-05 TDB
period 1237.066195724677
3.39
4.4881e-06
1.229e-08
d
yr
n .2910111045343948 1.0558e-09 deg/d
Q 2.477916667245981 5.9932e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2273  
   data-arc span      24442 days (66.92 yr)  
   first obs. used      1954-07-28  
   last obs. used      2021-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4651  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 23:58:50  

Additional Information
 Earth MOID = 1.05072 au 
 Jupiter MOID = 2.61355 au 
 T_jup = 3.616 
[ 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 14.04   n/a E2021B10  
diameter diameter 4.404 km 0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.972 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Benishek, V. (2020) Minor Planet Bull. 47, 231-241.]
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

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 ]
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