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134487 (1998 XF4)
Classification: Main-belt Asteroid          SPK-ID: 2134487
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09791546000996375 6.3793e-08  
a 2.685288914486522 1.9129e-08 au
q 2.422357615164918 1.7551e-07 au
i 2.433506513991629 6.5309e-06 deg
node 181.6171366066145 0.00011183 deg
peri 187.5697284826589 0.00011454 deg
M 2.116921763860215 2.5063e-05 deg
tp 2458991.048793276862
(2020-May-21.54879328)
0.00011187 TDB
period 1607.255628628188
4.40
1.7174e-05
4.702e-08
d
yr
n .2239842832638043 2.3934e-09 deg/d
Q 2.948220213808125 2.1002e-08 au
  Orbit Determination Parameters
   # obs. used (total)      285  
   data-arc span      7907 days (21.65 yr)  
   first obs. used      1998-12-08  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64147  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:56:30  

Additional Information
 Earth MOID = 1.42147 au 
 Jupiter MOID = 2.51249 au 
 T_jup = 3.366 
[ 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 16.4   n/a MPO439835  

134487 (1998 XF4)          Discovered 1998-Dec-08 by Spacewatch at Kitt Peak
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 1998 XF4 = 2002 SP47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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