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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6066660175865656 2.1511e-07  
a 2.021942371986863 6.4099e-09 au
q .7952986453840586 4.3247e-07 au
i 3.282074421559638 1.456e-05 deg
node 122.0194179277206 6.8729e-05 deg
peri 90.47888619239232 9.206e-05 deg
M 320.448935484739 1.5531e-05 deg
tp 2459315.873817624422
(2021-Apr-11.37381762)
4.5841e-05 TDB
period 1050.150605396868
2.88
4.9937e-06
1.367e-08
d
yr
n .3428079726373633 1.6301e-09 deg/d
Q 3.248586098589667 1.0299e-08 au
  Orbit Determination Parameters
   # obs. used (total)      157  
   # delay obs. used      0  
   # Doppler obs. used      2  
   data-arc span      8415 days (23.04 yr)  
   first obs. used      1998-01-22  
   last obs. used      2021-02-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47555  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:47:49  

Additional Information
 Earth MOID = .0238709 au 
 Jupiter MOID = 1.7237 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 21.47   n/a E2021C27  
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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