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JPL Small-Body Database Browser
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85819 (1998 XF9)
Classification: Main-belt Asteroid          SPK-ID: 2085819
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2012603965451052 5.7829e-08  
a 2.193916021818478 8.4503e-09 au
q 1.752367613280631 1.261e-07 au
i 5.851600416532644 4.5403e-06 deg
node 259.1069973830833 5.6107e-05 deg
peri 112.8225702055313 5.7328e-05 deg
M 141.4486936659013 1.38e-05 deg
tp 2458134.136163161816
(2018-Jan-15.63616316)
4.3866e-05 TDB
period 1186.939072468926
3.25
6.8576e-06
1.878e-08
d
yr
n .3033011620816995 1.7523e-09 deg/d
Q 2.635464430356325 1.0151e-08 au
  Orbit Determination Parameters
   # obs. used (total)      600  
   data-arc span      9091 days (24.89 yr)  
   first obs. used      1994-06-08  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60127  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:12:26  

Additional Information
 Earth MOID = .762284 au 
 Jupiter MOID = 2.85821 au 
 T_jup = 3.637 
[ 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 16.2   n/a MPO320053  

85819 (1998 XF9)          Discovered 1998-Dec-12 by Tombelli, M., Boattini, A. at San Marcello
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 XF9 = 2001 QM118 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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