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212957 (2009 BY57)
Classification: Main-belt Asteroid          SPK-ID: 2212957
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2293602046685512 5.19e-08  
a 2.365718586946655 1.097e-08 au
q 1.823116887656374 1.2374e-07 au
i 5.638128804436565 6.9131e-06 deg
node 317.5797761843979 4.5865e-05 deg
peri 256.1125251226279 4.8544e-05 deg
M 352.8790940414019 1.419e-05 deg
tp 2459026.789104910014
(2020-Jun-26.28910491)
5.237e-05 TDB
period 1329.055294737865
3.64
9.2442e-06
2.531e-08
d
yr
n .2708690913202406 1.884e-09 deg/d
Q 2.908320286236935 1.3486e-08 au
  Orbit Determination Parameters
   # obs. used (total)      327  
   data-arc span      8121 days (22.23 yr)  
   first obs. used      1998-01-31  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5626  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:51:58  

Additional Information
 Earth MOID = .827222 au 
 Jupiter MOID = 2.10369 au 
 T_jup = 3.506 
[ 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 16.8   n/a MPO418140  

212957 (2009 BY57)          Discovered 2009-Jan-20 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

Alternate Designations
 2009 BY57 = 2004 XV170 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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