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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2134782711242549 9.6457e-08  
a 2.257768338114694 2.1709e-08 AU
q 1.775783856694887 2.0915e-07 AU
i 3.81731872969438 7.1764e-06 deg
node 110.3789640768185 0.00014719 deg
peri 75.11536222059034 0.00014941 deg
M 255.8780852449085 3.0865e-05 deg
tp 2457158.891036869561
(2015-May-16.39103687)
0.00011042 JED
period 1239.131777172134
3.39
1.7872e-05
4.893e-08
d
yr
n .2905260010533897 4.1903e-09 deg/d
Q 2.739752819534501 2.6344e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      385  
   data-arc span      5801 days (15.88 yr)  
   first obs. used      1997-12-04  
   last obs. used      2013-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59119  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 06:10:19  

Additional Information
 Earth MOID = .782746 AU 
 T_jup = 3.589 
[ 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 15.7 mag n/a MPO235022  

44029 (1998 BK4)          Discovered 1998-Jan-21 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905)
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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