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172935 (2005 JF4)
Classification: Main-belt Asteroid          SPK-ID: 2172935
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1345291132337759 6.933e-08  
a 2.660967037526344 1.9584e-08 au
q 2.302989501623617 1.8258e-07 au
i 11.17159297549559 7.6095e-06 deg
node 228.5569210836248 2.6196e-05 deg
peri 347.116230062916 3.2951e-05 deg
M 184.8385462974433 1.8763e-05 deg
tp 2459771.924999937369
(2022-Jul-11.42499994)
8.3104e-05 TDB
period 1585.468686786763
4.34
1.7503e-05
4.792e-08
d
yr
n .2270621949207995 2.5066e-09 deg/d
Q 3.018944573429071 2.2218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      323  
   data-arc span      7645 days (20.93 yr)  
   first obs. used      1998-11-21  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5687  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 19:44:35  

Additional Information
 Earth MOID = 1.29684 au 
 Jupiter MOID = 1.96936 au 
 T_jup = 3.346 
[ 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 16.0   n/a MPO260223  
diameter diameter 3.694 km 0.168 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172935 (2005 JF4)          Discovered 2005-May-03 by CSS at Catalina
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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