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JPL Small-Body Database Browser
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245523 (2005 SY144)
Classification: Main-belt Asteroid          SPK-ID: 2245523
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1997921114919967 5.7784e-08  
a 3.078204986757901 2.6719e-08 au
q 2.463203912848346 1.8305e-07 au
i 2.831459076617505 6.0055e-06 deg
node 91.69136103533515 0.00014458 deg
peri 238.1542443574393 0.00014643 deg
M 284.0919012442439 2.4651e-05 deg
tp 2459416.439673097879
(2021-Jul-20.93967310)
0.00013919 TDB
period 1972.625909088284
5.40
2.5684e-05
7.032e-08
d
yr
n .1824978564569225 2.3761e-09 deg/d
Q 3.693206060667455 3.2057e-08 au
  Orbit Determination Parameters
   # obs. used (total)      280  
   data-arc span      7231 days (19.80 yr)  
   first obs. used      1999-06-20  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5779  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:40:45  

Additional Information
 Earth MOID = 1.4537 au 
 Jupiter MOID = 1.67287 au 
 T_jup = 3.196 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO433608  
diameter diameter 2.700 km 0.557 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.088   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

245523 (2005 SY144)          Discovered 2005-Sep-25 by Spacewatch at Kitt Peak
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ show close-approach data ]
Alternate Designations
 2005 SY144 = 1999 MP1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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