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216673 (2004 BL87)
Classification: Main-belt Asteroid          SPK-ID: 2216673
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955875331920078 4.74e-08  
a 2.627627459257829 1.3565e-08 au
q 2.113696286354007 1.2952e-07 au
i 14.45173291822054 5.1979e-06 deg
node 153.6357923497965 1.5419e-05 deg
peri 346.277443566926 2.0846e-05 deg
M 25.76745282877349 1.0772e-05 deg
tp 2459285.144133079323
(2021-Mar-11.64413308)
4.6689e-05 TDB
period 1555.765420735689
4.26
1.2047e-05
3.298e-08
d
yr
n .2313973528411266 1.7919e-09 deg/d
Q 3.14155863216165 1.6218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      447  
   data-arc span      7729 days (21.16 yr)  
   first obs. used      2000-02-07  
   last obs. used      2021-04-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57509  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 03:34:01  

Additional Information
 Earth MOID = 1.12938 au 
 Jupiter MOID = 1.88616 au 
 T_jup = 3.330 
[ 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 16.65   n/a MPCxxxxx  

216673 (2004 BL87)          Discovered 2004-Jan-23 by LONEOS at Anderson Mesa
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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