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175772 (1998 XU8)
Classification: Main-belt Asteroid          SPK-ID: 2175772
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1615746460776442 3.4169e-08  
a 2.636543292552886 1.7232e-08 au
q 2.210544743190266 9.3024e-08 au
i 6.240332949813093 4.6211e-06 deg
node 72.61818582325839 4.2215e-05 deg
peri 31.0459275510424 4.5555e-05 deg
M 30.28163250119347 1.717e-05 deg
tp 2459068.969166857995
(2020-Aug-07.46916686)		 7.4213e-05 TDB
period 1563.690462502489
4.28		 1.533e-05
4.197e-08		 d
yr
n .2302245928032747 2.257e-09 deg/d
Q 3.062541841915505 2.0016e-08 au
   Orbit Determination Parameters
   # obs. used (total)      507  
   data-arc span      8073 days (22.10 yr)  
   first obs. used      1998-12-13  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59769  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:33:45  

Additional Information
 Earth MOID = 1.22991 au 
 Jupiter MOID = 2.09815 au 
 T_jup = 3.370 
[ 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 16.1   n/a MPO454208  

175772 (1998 XU8)          Discovered 1998-Dec-13 by Comba, P. G. at Prescott
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

Alternate Designations
 1998 XU8 = 2004 EY111 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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