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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09803888731273511 4.7664e-08  
a 2.685785764380586 1.4551e-08 au
q 2.42247431648033 1.2323e-07 au
i 2.433343721964349 4.8039e-06 deg
node 181.6145305651594 0.00010725 deg
peri 187.6515771612368 0.00010995 deg
M 46.83525946830995 2.2897e-05 deg
tp 2458991.341312432436
(2020-May-21.84131243)
0.00010226 TDB
period 1607.701726842595
4.40
1.3065e-05
3.577e-08
d
yr
n .223922133060722 1.8197e-09 deg/d
Q 2.949097212280842 1.5977e-08 au
  Orbit Determination Parameters
   # obs. used (total)      366  
   data-arc span      8075 days (22.11 yr)  
   first obs. used      1998-12-08  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .6065  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:08:35  

Additional Information
 Earth MOID = 1.42007 au 
 Jupiter MOID = 2.5126 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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