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305230 (2007 XP18)
Classification: Main-belt Asteroid          SPK-ID: 2305230
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0752668341492459 3.7043e-08  
a 2.576860151115595 1.6847e-08 au
q 2.382908045495777 1.013e-07 au
i 5.36661646370478 4.2043e-06 deg
node 71.42187707605734 5.1159e-05 deg
peri 166.9840650759287 6.1575e-05 deg
M 305.5200751000087 3.5927e-05 deg
tp 2459625.148681148532
(2022-Feb-14.64868115)
0.00015113 TDB
period 1510.896451575037
4.14
1.4817e-05
4.057e-08
d
yr
n .2382691412271948 2.3366e-09 deg/d
Q 2.770812256735413 1.8115e-08 au
  Orbit Determination Parameters
   # obs. used (total)      386  
   data-arc span      8259 days (22.61 yr)  
   first obs. used      1998-09-25  
   last obs. used      2021-05-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48345  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 05:51:37  

Additional Information
 Earth MOID = 1.37113 au 
 Jupiter MOID = 2.22013 au 
 T_jup = 3.417 
[ 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 16.52   n/a MPCxxxxx  

305230 (2007 XP18)          Discovered 2007-Dec-12 by OAM at Costitx
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2007 XP18 = 2005 GF173 = 2006 QZ122 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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