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136847 (1998 BC4)
Classification: Main-belt Asteroid          SPK-ID: 2136847
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1968263432717419 3.7486e-08  
a 2.97871986431916 2.0642e-08 au
q 2.392429325794321 1.104e-07 au
i 3.237758404409825 4.9237e-06 deg
node 96.75500070184449 0.00011228 deg
peri 21.745960442 0.00011374 deg
M 137.1997424035809 1.7796e-05 deg
tp 2458284.861470730969
(2018-Jun-15.36147073)
9.0545e-05 TDB
period 1877.772261255549
5.14
1.9519e-05
5.344e-08
d
yr
n .1917165395548502 1.9929e-09 deg/d
Q 3.565010402844 2.4705e-08 au
  Orbit Determination Parameters
   # obs. used (total)      530  
   data-arc span      21380 days (58.54 yr)  
   first obs. used      1960-10-25  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51466  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:13:25  

Additional Information
 Earth MOID = 1.40896 au 
 Jupiter MOID = 1.5353 au 
 T_jup = 3.228 
[ 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 15.3   n/a MPO299760  

136847 (1998 BC4)          Discovered 1998-Jan-20 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Alternate Designations
 1998 BC4 = 2002 YP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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