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44029 (1998 BK4)
Classification: Main-belt Asteroid          SPK-ID: 2044029
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .213422149739173 6.2661e-08  
a 2.258458568515258 1.0992e-08 AU
q 1.776453485725877 1.4486e-07 AU
i 3.817169825878536 5.8219e-06 deg
node 110.3793422290195 9.2474e-05 deg
peri 75.02697648251403 9.3881e-05 deg
M 314.0513300305494 1.3958e-05 deg
tp 2457158.729356788830
(2015-May-16.22935679)
4.827e-05 JED
period 1239.700049682629
3.39
9.0509e-06
2.478e-08
d
yr
n .2903928253388087 2.1201e-09 deg/d
Q 2.740463651304641 1.3338e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      582  
   data-arc span      6386 days (17.48 yr)  
   first obs. used      1997-12-04  
   last obs. used      2015-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56858  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 17:33:00  

Additional Information
 Earth MOID = .784174 AU 
 T_jup = 3.588 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8 mag n/a MPO319612  

44029 (1998 BK4)          Discovered 1998-Jan-21 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 BK4 = 2000 YW65 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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