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18459 (1995 FD1)
Classification: Main-belt Asteroid          SPK-ID: 2018459
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1647937895318374 4.3179e-08  
a 2.381446738489093 1.3502e-08 au
q 1.988999105885241 9.9698e-08 au
i 1.823677921564744 5.0072e-06 deg
node 347.3657960669834 0.00014895 deg
peri 243.8131407174388 0.00014976 deg
M 203.7988128801341 1.9531e-05 deg
tp 2457982.927088380562
(2017-Aug-17.42708838)
7.5166e-05 JED
period 1342.331359211135
3.68
1.1416e-05
3.126e-08
d
yr
n .268190113811813 2.2808e-09 deg/d
Q 2.773894371092946 1.5727e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1163  
   data-arc span      7572 days (20.73 yr)  
   first obs. used      1995-03-27  
   last obs. used      2015-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52192  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:39:47  

Additional Information
 Earth MOID = .978486 au 
 Jupiter MOID = 2.21988 au 
 T_jup = 3.519 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO358808  
rotation period rot_per 9.2411 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

18459 (1995 FD1)          Discovered 1995-Mar-28 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 FD1 = 1999 LQ22 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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