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46938 (1998 SP71)
Classification: Main-belt Asteroid          SPK-ID: 2046938
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04994879405433834 4.5537e-08  
a 2.668444096447709 1.5218e-08 au
q 2.535158531828728 1.276e-07 au
i 1.606507718215208 4.5221e-06 deg
node 106.1431902855479 0.00015718 deg
peri 309.2743052128816 0.00016652 deg
M 316.5179962046836 5.8781e-05 deg
tp 2459192.805913383276
(2020-Dec-09.30591338)
0.00026079 TDB
period 1592.155898423344
4.36
1.362e-05
3.729e-08
d
yr
n .2261085113313938 1.9343e-09 deg/d
Q 2.801729661066691 1.5979e-08 au
  Orbit Determination Parameters
   # obs. used (total)      886  
   data-arc span      7702 days (21.09 yr)  
   first obs. used      1998-09-21  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55549  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:29:38  

Additional Information
 Earth MOID = 1.54686 au 
 Jupiter MOID = 2.36162 au 
 T_jup = 3.380 
[ 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 15.0   n/a MPO347849  

46938 (1998 SP71)          Discovered 1998-Sep-21 by Elst, E. W. at La Silla
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SP71 = 2000 BJ18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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