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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1648839334076743 4.31e-08  
a 2.381372700597915 1.3369e-08 au
q 1.988722602813675 9.9614e-08 au
i 1.82368060565622 4.8799e-06 deg
node 347.3639185240449 0.0001488 deg
peri 243.8065553483748 0.00014959 deg
M 257.4562482238418 1.9614e-05 deg
tp 2457982.836874060163
(2017-Aug-17.33687406)
7.4738e-05 JED
period 1342.268761163668
3.67
1.1303e-05
3.095e-08
d
yr
n .2682026211262647 2.2586e-09 deg/d
Q 2.774022798382155 1.5574e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1179  
   data-arc span      7654 days (20.96 yr)  
   first obs. used      1995-03-27  
   last obs. used      2016-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5255  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 16:32:43  

Additional Information
 Earth MOID = .978763 au 
 Jupiter MOID = 2.22053 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. 2016-February); 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. (2016) 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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