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216671 (2004 BC57)
Classification: Main-belt Asteroid          SPK-ID: 2216671
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1195262757996231 3.7758e-08  
a 2.477908093870741 1.4931e-08 au
q 2.181732967636628 9.5512e-08 au
i 8.862190888641308 4.3696e-06 deg
node 109.595322850875 4.1819e-05 deg
peri 148.4554376163128 5.2533e-05 deg
M 13.14773004427261 3.0693e-05 deg
tp 2459148.467523607944
(2020-Oct-25.96752361)
0.00012157 TDB
period 1424.709165617527
3.90
1.2877e-05
3.526e-08
d
yr
n .2526831501388997 2.2839e-09 deg/d
Q 2.774083220104854 1.6716e-08 au
  Orbit Determination Parameters
   # obs. used (total)      435  
   data-arc span      8945 days (24.49 yr)  
   first obs. used      1996-01-25  
   last obs. used      2020-07-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5978  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:55:50  

Additional Information
 Earth MOID = 1.16976 au 
 Jupiter MOID = 2.30324 au 
 T_jup = 3.454 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.20   n/a E2021B55  

216671 (2004 BC57)          Discovered 2004-Jan-23 by LINEAR at Socorro
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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