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90441 (2004 BC87)
Classification: Main-belt Asteroid          SPK-ID: 2090441
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1304102204464423 4.3636e-08  
a 2.384031012083689 1.0439e-08 au
q 2.0731290022467 1.0208e-07 au
i 7.206771855634996 3.9227e-06 deg
node 139.4993244729052 3.3902e-05 deg
peri 62.90156536852434 3.7503e-05 deg
M 117.7582796688549 1.4335e-05 deg
tp 2458560.699995660201
(2019-Mar-18.19999566)
5.368e-05 TDB
period 1344.516937641732
3.68
8.8307e-06
2.418e-08
d
yr
n .2677541575872119 1.7586e-09 deg/d
Q 2.694933021920678 1.18e-08 au
  Orbit Determination Parameters
   # obs. used (total)      841  
   data-arc span      7982 days (21.85 yr)  
   first obs. used      1998-09-21  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51349  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:13:03  

Additional Information
 Earth MOID = 1.08246 au 
 Jupiter MOID = 2.2824 au 
 T_jup = 3.514 
[ 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 15.8   n/a MPO474783  

90441 (2004 BC87)          Discovered 2004-Jan-22 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 2004 BC87 = 2001 MO26 = 2002 SH28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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