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JPL Small-Body Database Browser
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268529 (2005 YY257)
Classification: Main-belt Asteroid          SPK-ID: 2268529
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1603325810560842 4.5508e-08  
a 2.622327938080411 1.9597e-08 au
q 2.2018833313925 1.2218e-07 au
i 1.670086946401013 5.5973e-06 deg
node 36.86894661473071 0.00025511 deg
peri 10.31780874183894 0.00025664 deg
M 81.79781342266433 2.8393e-05 deg
tp 2458248.073851695572
(2018-May-09.57385170)
0.00012067 TDB
period 1551.061184655585
4.25
1.7387e-05
4.76e-08
d
yr
n .2320991612461364 2.6017e-09 deg/d
Q 3.042772544768323 2.2739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      273  
   data-arc span      9570 days (26.20 yr)  
   first obs. used      1992-11-26  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49559  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 06:32:55  

Additional Information
 Earth MOID = 1.21117 au 
 Jupiter MOID = 2.33738 au 
 T_jup = 3.385 
[ 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 16.8   n/a MPO427488  

268529 (2005 YY257)          Discovered 2005-Dec-21 by Spacewatch at Kitt Peak
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

Alternate Designations
 2005 YY257 = 2002 AH173 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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