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160925 (2001 XA157)
Classification: Main-belt Asteroid          SPK-ID: 2160925
[ 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06059074374661657 4.8402e-08  
a 2.253285040589961 1.1551e-08 au
q 2.11675682410749 1.0773e-07 au
i 7.336491502686767 5.679e-06 deg
node 340.0788597250005 2.7297e-05 deg
peri 143.3356111374798 4.5753e-05 deg
M 189.7745358906158 3.6662e-05 deg
tp 2459784.677267846360
(2022-Jul-24.17726785)		 0.00012685 TDB
period 1235.442755436117
3.38		 9.5002e-06
2.601e-08		 d
yr
n .2913935092629349 2.2407e-09 deg/d
Q 2.389813257072432 1.2251e-08 au
   Orbit Determination Parameters
   # obs. used (total)      573  
   data-arc span      7407 days (20.28 yr)  
   first obs. used      1999-02-12  
   last obs. used      2019-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5792  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:03:22  

Additional Information
 Earth MOID = 1.13592 au 
 Jupiter MOID = 2.6298 au 
 T_jup = 3.612 
[ 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 MPO433028  

160925 (2001 XA157)          Discovered 2001-Dec-14 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

Alternate Designations
 2001 XA157 = 1999 DE4 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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