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4254 Kamel (1985 UT3)
Classification: Main-belt Asteroid          SPK-ID: 2004254
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1594463596449546 1.315e-08  
a 2.615880098997516 8.6391e-09 au
q 2.198787539944679 3.416e-08 au
i 13.02249550133143 7.1832e-07 deg
node 201.9395735844456 2.7374e-06 deg
peri 227.4674843013398 5.7716e-06 deg
M 80.02458753542274 4.6565e-06 deg
tp 2458856.984671377128
(2020-Jan-08.48467138)
1.9527e-05 TDB
period 1545.344026290588
4.23
7.6554e-06
2.096e-08
d
yr
n .2329578358445767 1.154e-09 deg/d
Q 3.032972658050353 1.0017e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2747  
   data-arc span      24852 days (68.04 yr)  
   first obs. used      1953-03-09  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40612  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:30:12  

Additional Information
 Earth MOID = 1.23203 au 
 Jupiter MOID = 2.38826 au 
 T_jup = 3.353 
[ 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 12.12   n/a MPCxxxxx  
diameter diameter 9.640 km 0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.739 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2003) Minor Planet Bull. 30, 21-24.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.397   0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4254 Kamel (1985 UT3)          Discovered 1985-Oct-24 by Lagerkvist, C.-I. at Kvistaberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1985 UT3 = 1947 TB = 1951 SU = 1961 AG = 1970 EX1 = 1979 HJ4 = 1981 WG4 = 1981 WX7 = 1983 ER1 = 1983 FL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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