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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2119173208047705 5.8695e-08  
a 2.71410547503162 2.9006e-08 au
q 2.13893951438136 1.6427e-07 au
i 7.845927049276752 7.2145e-06 deg
node 301.2660706769879 4.9069e-05 deg
peri 101.269946120529 5.2883e-05 deg
M 177.8897228954463 2.0022e-05 deg
tp 2457793.475226912756
(2017-Feb-08.97522691)
8.3164e-05 TDB
period 1633.196755734814
4.47
2.6181e-05
7.168e-08
d
yr
n .2204265951030667 3.5336e-09 deg/d
Q 3.28927143568188 3.5153e-08 au
  Orbit Determination Parameters
   # obs. used (total)      174  
   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      .6306  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:31:11  

Additional Information
 Earth MOID = 1.16384 au 
 Jupiter MOID = 2.19192 au 
 T_jup = 3.316 
[ 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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