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JPL Small-Body Database Browser
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85867 (1999 BY9)
Classification: Amor [NEO]          SPK-ID: 2085867
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 153 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3021498759900582 5.6459e-08  
a 1.830158244597376 5.5915e-09 au
q 1.277176157950096 9.9888e-08 au
i .9439942366180509 3.1353e-06 deg
node 254.3946537968372 0.00019752 deg
peri 287.4767293916652 0.00019785 deg
M 27.83922527622452 1.0928e-05 deg
tp 2458530.566375812478
(2019-Feb-16.06637581)
2.7183e-05 TDB
period 904.3392715748097
2.48
4.1444e-06
1.135e-08
d
yr
n .3980806886480764 1.8243e-09 deg/d
Q 2.383140331244656 7.281e-09 au
  Orbit Determination Parameters
   # obs. used (total)      652  
   data-arc span      8695 days (23.81 yr)  
   first obs. used      1995-09-19  
   last obs. used      2019-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59836  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-15 07:15:16  

Additional Information
 Earth MOID = .28091 au 
 Jupiter MOID = 2.57956 au 
 T_jup = 3.974 
[ 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 18.0   n/a MPO417415  
rotation period rot_per 25. h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Koehn, B.W.; Bowell, E.L.G.; Skiff, B.A.; Sanborn, J.J.; et al. (2014) Minor Planet Bull. 41, 286-300.]

85867 (1999 BY9)          Discovered 1999-Jan-23 by Korlevic, K. at Visnjan
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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