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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09881059840734835 2.9038e-08  
a 2.255302011873135 6.3987e-09 au
q 2.032454270490654 6.4426e-08 au
i 2.460984804816678 3.8129e-06 deg
node 154.0629276187922 7.8435e-05 deg
peri 310.6707698619891 8.121e-05 deg
M 92.1679281175517 2.0504e-05 deg
tp 2458883.774659290149
(2020-Feb-04.27465929)
7.0306e-05 TDB
period 1237.101939734645
3.39
5.2648e-06
1.441e-08
d
yr
n .2910026962509 1.2384e-09 deg/d
Q 2.478149753255617 7.031e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2123  
   data-arc span      24267 days (66.44 yr)  
   first obs. used      1954-07-28  
   last obs. used      2021-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47318  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:07:18  

Additional Information
 Earth MOID = 1.05015 au 
 Jupiter MOID = 2.61352 au 
 T_jup = 3.616 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456236.5 (2012-Nov-05.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09871216976956304 2.897e-08  
q 2.033323287508709 6.436e-08 au
tp 2456409.376656739666
(2013-Apr-26.87665674)
7.0322e-05 TDB
node 154.121896301882 7.8457e-05 deg
peri 310.8336032930405 8.1251e-05 deg
i 2.46019673863431 3.8131e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2123  
   data-arc span      24267 days (66.44 yr)  
   first obs. used      1954-07-28  
   last obs. used      2021-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47318  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:07:18  

Additional Information
 Jupiter MOID = 2.61352 au 
 T_jup = 3.616 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.392828225052371E-16 -1.857436605286238E-15 1.50143425370564E-13 -1.106984392836909E-15 3.891696793768696E-14 -1.527577693377968E-16
q -1.857436605286238E-15 4.142155876043458E-15 -3.612415165181536E-13 2.75653892769709E-15 -9.701186922619349E-14 3.408216723616662E-16
tp 1.50143425370564E-13 -3.612415165181536E-13 4.945119850396763E-9 -9.898747091000255E-12 1.495064244547834E-9 -5.564943539971679E-15
node -1.106984392836909E-15 2.75653892769709E-15 -9.898747091000255E-12 6.155502863283043E-9 -6.15222664318721E-9 6.049435205647522E-11
peri 3.891696793768696E-14 -9.701186922619349E-14 1.495064244547834E-9 -6.15222664318721E-9 6.601746241911405E-9 -6.044084012174236E-11
i -1.527577693377968E-16 3.408216723616662E-16 -5.564943539971679E-15 6.049435205647522E-11 -6.044084012174236E-11 1.453950666547589E-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 14.04   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

[ 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 34 CATAB v2.0f-lin.ifort 2021-Feb-24 19:07:24 2021-Feb-24 19:07

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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