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JPL Small-Body Database Browser
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46927 (1998 SP54)
Classification: Main-belt Asteroid          SPK-ID: 2046927
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2235875102136344 4.0277e-08  
a 2.544709016728481 1.0474e-08 au
q 1.975743863459974 1.026e-07 au
i 4.224450180611625 6.902e-06 deg
node 188.6656175645607 6.6992e-05 deg
peri 261.5248280948674 6.9649e-05 deg
M 321.6940759846861 1.8735e-05 deg
tp 2458758.268051531082
(2019-Oct-01.76805153)
7.7338e-05 TDB
period 1482.707962572144
4.06
9.1546e-06
2.506e-08
d
yr
n .2427989928478471 1.4991e-09 deg/d
Q 3.113674169996988 1.2816e-08 au
  Orbit Determination Parameters
   # obs. used (total)      920  
   data-arc span      10068 days (27.56 yr)  
   first obs. used      1992-04-07  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57163  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:29:36  

Additional Information
 Earth MOID = .997479 au 
 Jupiter MOID = 2.12043 au 
 T_jup = 3.404 
[ 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 15.4   n/a MPO266176  

46927 (1998 SP54)          Discovered 1998-Sep-16 by LONEOS at Anderson Mesa
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SP54 = 1996 HU1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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