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523311 (2017 BD121)
Classification: Main-belt Asteroid          SPK-ID: 2523311
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1064391177332277 7.5833e-08  
a 3.148839658227997 7.4283e-08 au
q 2.813679943122811 2.4658e-07 au
i 10.70636367485134 5.7893e-06 deg
node 252.3567670147672 4.5397e-05 deg
peri 258.9505615312352 5.4466e-05 deg
M 208.2666352125625 3.5481e-05 deg
tp 2459860.706727173595
(2022-Oct-08.20672717)
0.00021962 TDB
period 2040.911847017401
5.59
7.2219e-05
1.977e-07
d
yr
n .1763917439776274 6.2418e-09 deg/d
Q 3.483999373333183 8.2189e-08 au
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      4454 days (12.19 yr)  
   first obs. used      2008-09-04  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62464  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:48:23  

Additional Information
 Earth MOID = 1.85016 au 
 Jupiter MOID = 1.73495 au 
 T_jup = 3.173 
[ 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 16.0   n/a MPO448203  

523311 (2017 BD121)          Discovered 2014-Aug-28 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2018-05-31

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