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344784 (2003 XQ18)
Classification: Main-belt Asteroid          SPK-ID: 2344784
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2099863795478331 5.8562e-08  
a 2.71756016110352 2.9653e-08 au
q 2.146909541669966 1.639e-07 au
i 7.853554905199549 6.8035e-06 deg
node 301.198497216964 4.8922e-05 deg
peri 101.2594858543635 5.2302e-05 deg
M 265.9374608732533 2.0591e-05 deg
tp 2459428.044550119074
(2021-Aug-01.54455012)
9.8657e-05 TDB
period 1636.31600286134
4.48
2.6783e-05
7.333e-08
d
yr
n .2200064042461767 3.601e-09 deg/d
Q 3.288210780537074 3.588e-08 au
  Orbit Determination Parameters
   # obs. used (total)      178  
   data-arc span      5674 days (15.53 yr)  
   first obs. used      2003-11-19  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62586  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 23:06:11  

Additional Information
 Earth MOID = 1.1723 au 
 Jupiter MOID = 2.19372 au 
 T_jup = 3.315 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO437461  

344784 (2003 XQ18)          Discovered 2003-Dec-15 by NEAT at Palomar
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

Alternate Designations
 2003 XQ18 = 2007 PW40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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