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39814 (1997 XF8)
Classification: Main-belt Asteroid          SPK-ID: 2039814
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1968069537984432 7.1019e-08  
a 2.541223346141671 1.1553e-08 au
q 2.041092920466042 1.8367e-07 au
i 7.000924318378082 6.577e-06 deg
node 297.2001367744235 3.4727e-05 deg
peri 184.945411161188 3.6553e-05 deg
M 93.35122555702259 1.4004e-05 deg
tp 2458216.810243503735
(2018-Apr-08.31024350)
5.5824e-05 TDB
period 1479.662548771589
4.05
1.009e-05
2.762e-08
d
yr
n .2432987171966141 1.6591e-09 deg/d
Q 3.0413537718173 1.3827e-08 au
  Orbit Determination Parameters
   # obs. used (total)      866  
   data-arc span      9216 days (25.23 yr)  
   first obs. used      1994-02-10  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49003  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:11:19  

Additional Information
 Earth MOID = 1.05736 au 
 Jupiter MOID = 2.05049 au 
 T_jup = 3.408 
[ 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 14.6   n/a MPO385070  
diameter diameter 3.313 km 0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.233   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39814 (1997 XF8)          Discovered 1997-Dec-07 by ODAS at Caussols
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 XF8 = 2000 QK23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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