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277522 (2005 XD18)
Classification: Main-belt Asteroid          SPK-ID: 2277522
[ 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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1793528690270434 5.4973e-08  
a 2.457108283338361 2.514e-08 au
q 2.016418863211512 1.4249e-07 au
i 3.406864879267265 5.7044e-06 deg
node 114.438331787939 9.4908e-05 deg
peri 261.617639275127 9.6251e-05 deg
M 329.8115678028848 2.1015e-05 deg
tp 2459118.470366628266
(2020-Sep-25.97036663)		 8.3185e-05 TDB
period 1406.808134615024
3.85		 2.1591e-05
5.911e-08		 d
yr
n .2558984350047953 3.9274e-09 deg/d
Q 2.897797703465209 2.9649e-08 au
   Orbit Determination Parameters
   # obs. used (total)      194  
   data-arc span      6456 days (17.68 yr)  
   first obs. used      2001-11-20  
   last obs. used      2019-07-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61257  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:47:01  

Additional Information
 Earth MOID = 1.02107 au 
 Jupiter MOID = 2.56851 au 
 T_jup = 3.467 
[ 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 17.0   n/a MPO437263  

277522 (2005 XD18)          Discovered 2005-Dec-01 by Spacewatch at Kitt Peak
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

Alternate Designations
 2005 XD18 = 2001 WA104 = 2010 CT172 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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