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JPL Small-Body Database Browser
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39848 (1998 BW44)
Classification: Main-belt Asteroid          SPK-ID: 2039848
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09627778054815608 3.5929e-08  
a 2.248224075184084 9.7719e-09 au
q 2.03177005105043 8.2022e-08 au
i 7.763420554597788 4.6558e-06 deg
node 117.8086329239725 3.4487e-05 deg
peri 138.9883137802401 4.4848e-05 deg
M 96.98979504139169 2.8512e-05 deg
tp 2458668.772589235059
(2019-Jul-04.27258924)
9.7606e-05 TDB
period 1231.28281510868
3.37
8.0277e-06
2.198e-08
d
yr
n .2923779943832193 1.9062e-09 deg/d
Q 2.464678099317738 1.0713e-08 au
  Orbit Determination Parameters
   # obs. used (total)      902  
   data-arc span      7779 days (21.30 yr)  
   first obs. used      1998-01-22  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52938  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:11:47  

Additional Information
 Earth MOID = 1.02319 au 
 Jupiter MOID = 2.59087 au 
 T_jup = 3.611 
[ 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 15.5   n/a MPO337581  

39848 (1998 BW44)          Discovered 1998-Jan-22 by Spacewatch at Kitt Peak
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 BW44 = 1999 NV13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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