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(1998 BY7)
Classification: Apollo [NEO, PHA]          SPK-ID: 3011167
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .606762062775011 2.1794e-07  
a 2.021772032803862 6.9041e-09 au
q .7950374637189633 4.3798e-07 au
i 3.282023033424266 1.4911e-05 deg
node 122.0210033800698 7.3752e-05 deg
peri 90.4866336215712 9.5491e-05 deg
M 251.8811695229434 1.5668e-05 deg
tp 2459315.851965634997
(2021-Apr-11.35196564)
4.7279e-05 TDB
period 1050.017902780496
2.87
5.3786e-06
1.473e-08
d
yr
n .3428512971509374 1.7562e-09 deg/d
Q 3.24850660188876 1.1093e-08 au
  Orbit Determination Parameters
   # obs. used (total)      146  
   # delay obs. used      0  
   # Doppler obs. used      2  
   data-arc span      8394 days (22.98 yr)  
   first obs. used      1998-01-22  
   last obs. used      2021-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48736  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-16 06:02:42  

Additional Information
 Earth MOID = .0240003 au 
 Jupiter MOID = 1.72493 au 
 T_jup = 3.563 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 21.5   n/a MPO57667  
rotation period rot_per 1.3 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 upper-limit; Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Benner, L.A.M. (2011) http://echo.jpl.nasa.gov/~lance/radar.nea.periods.html]

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