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JPL Small-Body Database Browser
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5259 Epeigeus (1989 BB1)
Classification: Jupiter Trojan          SPK-ID: 2005259
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07316517956594147 4.2609e-08  
a 5.204767670181387 9.609e-08 au
q 4.823959908993559 1.9753e-07 au
i 15.9198593085333 4.5276e-06 deg
node 67.46295651821272 2.1864e-05 deg
peri 200.9141971000176 5.0566e-05 deg
M 92.76709146566004 4.3538e-05 deg
tp 2457882.885857253577
(2017-May-09.38585725)
0.00053183 TDB
period 4337.110122048492
11.87
0.00012011
3.288e-07
d
yr
n .08300457905596499 2.2986e-09 deg/d
Q 5.585575431369215 1.0312e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1636  
   data-arc span      14538 days (39.80 yr)  
   first obs. used      1980-03-19  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47926  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 19:55:24  

Additional Information
 Earth MOID = 3.8132 au 
 Jupiter MOID = .503455 au 
 T_jup = 2.918 
[ 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 10.4   n/a MPO502204  
diameter diameter 44.741 km 1.058 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 18.42 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Mottola, S.; Di Martino, M.; Erikson, A.; Gonano-Beurer, M.; et al. (2011) Astron. J. 141, A170.]
geometric albedo albedo 0.073   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

5259 Epeigeus (1989 BB1)          Discovered 1989-Jan-30 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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