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21604 (1999 BS3)
Classification: Main-belt Asteroid          SPK-ID: 2021604
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02476289036516574 3.4631e-08  
a 2.859292776928125 1.5664e-08 au
q 2.788488423371144 9.4748e-08 au
i 2.340410515216277 5.602e-06 deg
node 161.5742985994251 0.00010189 deg
peri 297.7607578420129 0.00016094 deg
M 224.9229454777918 0.00012525 deg
tp 2459863.121386263517
(2022-Oct-10.62138626)
0.00061527 TDB
period 1765.982386117597
4.83
1.4512e-05
3.973e-08
d
yr
n .2038525428282655 1.6751e-09 deg/d
Q 2.930097130485106 1.6052e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1394  
   data-arc span      15232 days (41.70 yr)  
   first obs. used      1978-11-29  
   last obs. used      2020-08-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53774  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:50:07  

Additional Information
 Earth MOID = 1.80616 au 
 Jupiter MOID = 2.08983 au 
 T_jup = 3.301 
[ 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 14.0   n/a MPO302197  

21604 (1999 BS3)          Discovered 1999-Jan-19 by Korlevic, K. at Visnjan
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 BS3 = 1978 WO9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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