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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2235558574525703 3.95e-08  
a 2.544509198791326 8.547e-09 au
q 1.975669263059578 1.012e-07 au
i 4.224529884265965 5.7882e-06 deg
node 188.6578158986019 6.3959e-05 deg
peri 261.4726816731264 6.622e-05 deg
M 58.85831502915534 1.5824e-05 deg
tp 2458758.112740125491
(2019-Oct-01.61274013)
6.5357e-05 TDB
period 1482.533326202072
4.06
7.4698e-06
2.045e-08
d
yr
n .2428275935774352 1.2235e-09 deg/d
Q 3.113349134523073 1.0458e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1205  
   data-arc span      10242 days (28.04 yr)  
   first obs. used      1992-04-07  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53792  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:36:13  

Additional Information
 Earth MOID = .997389 au 
 Jupiter MOID = 2.12035 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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