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58689 (1998 BY9)
Classification: Main-belt Asteroid          SPK-ID: 2058689
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09538255979224541 3.595e-08  
a 2.658090635076851 1.4212e-08 au
q 2.404555146143426 9.5242e-08 au
i 6.772210455728728 4.3573e-06 deg
node 103.3072104887049 4.0766e-05 deg
peri 320.9449993199754 5.1119e-05 deg
M 66.85088488157412 2.9376e-05 deg
tp 2458706.560626378886
(2019-Aug-11.06062638)
0.00012906 TDB
period 1582.898636137088
4.33
1.2695e-05
3.476e-08
d
yr
n .2274308611943374 1.824e-09 deg/d
Q 2.911626124010276 1.5567e-08 au
  Orbit Determination Parameters
   # obs. used (total)      624  
   data-arc span      10572 days (28.94 yr)  
   first obs. used      1991-06-07  
   last obs. used      2020-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61581  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:50:01  

Additional Information
 Earth MOID = 1.42276 au 
 Jupiter MOID = 2.33675 au 
 T_jup = 3.371 
[ 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 MPO313842  

58689 (1998 BY9)          Discovered 1998-Jan-22 by Spacewatch at Kitt Peak
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 BY9 = 2001 TD142 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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