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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456234.5 (2012-Nov-03.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09871142724610157 2.8972e-08  
q 2.033316787801067 6.4366e-08 au
tp 2456409.383456137805
(2013-Apr-26.88345614)		 7.033e-05 TDB
node 154.1220879526881 7.8459e-05 deg
peri 310.83588628183 8.1254e-05 deg
i 2.460199611090154 3.8137e-06 deg
   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
 Jupiter MOID = 2.61341 au 
 T_jup = 3.616 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.394015317800323E-16 -1.857737305212766E-15 1.505381812186459E-13 -1.107858627145262E-15 3.905178568400046E-14 -1.527014574558454E-16
q -1.857737305212766E-15 4.142918572243978E-15 -3.622744232875188E-13 2.761505595187977E-15 -9.736523462032929E-14 3.410020780208057E-16
tp 1.505381812186459E-13 -3.622744232875188E-13 4.946327727119208E-9 -9.897874418737966E-12 1.495480869541499E-9 -6.231976241212109E-15
node -1.107858627145262E-15 2.761505595187977E-15 -9.897874418737966E-12 6.155750360223012E-9 -6.152473701931381E-9 6.046171853156018E-11
peri 3.905178568400046E-14 -9.736523462032929E-14 1.495480869541499E-9 -6.152473701931381E-9 6.602136551765657E-9 -6.040845617847545E-11
i -1.527014574558454E-16 3.410020780208057E-16 -6.231976241212109E-15 6.046171853156018E-11 -6.040845617847545E-11 1.454414439294103E-11

[ 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)  
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)		 Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1915-Jan-21 17:40 < 00:01 Iris 0.0408333607432851 0.0408243142211557 0.0408424073934815 5.03921591566243 5.03921588772445 2420519.236369381 0.217485246642417 465.253206328089 30.9372429240149 -14.258459237279 50248.5623748561 T 33 CATAB v2.0f-lin.ifort 2020-Nov-13 03:42:45 2020-Nov-13 03:42

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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