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18660 (1998 FL34)
Classification: Main-belt Asteroid          SPK-ID: 2018660
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01401804367368996 4.1484e-08  
a 2.735221937740348 1.2519e-08 au
q 2.696879477159869 1.1656e-07 au
i 3.942915046179834 3.9488e-06 deg
node 211.7835602170081 5.5468e-05 deg
peri 341.23400605302 0.0001475 deg
M 354.4113076970937 0.0001373 deg
tp 2459226.150449608635
(2021-Jan-11.65044961)
0.00063019 TDB
period 1652.293838812092
4.52
1.1344e-05
3.106e-08
d
yr
n .2178789217411959 1.4959e-09 deg/d
Q 2.773564398320827 1.2695e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1910  
   data-arc span      18229 days (49.91 yr)  
   first obs. used      1971-04-16  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48887  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:34:25  

Additional Information
 Earth MOID = 1.69229 au 
 Jupiter MOID = 2.18582 au 
 T_jup = 3.349 
[ 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 13.87   n/a E2021B10  

18660 (1998 FL34)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 FL34 = 2000 PD22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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