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JPL Small-Body Database Browser
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52947 (1998 SY144)
Classification: Main-belt Asteroid          SPK-ID: 2052947
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1457395256367374 6.17e-08  
a 2.453714993525383 1.3296e-08 au
q 2.096111734321244 1.5175e-07 au
i 5.853328074742207 6.1405e-06 deg
node 185.1682916481967 4.3714e-05 deg
peri 160.1773087494088 4.6008e-05 deg
M 255.5404347895272 1.3549e-05 deg
tp 2459407.861813139693
(2021-Jul-12.36181314)
5.3724e-05 TDB
period 1403.894917950383
3.84
1.1411e-05
3.124e-08
d
yr
n .2564294488120109 2.0843e-09 deg/d
Q 2.811318252729524 1.5234e-08 au
  Orbit Determination Parameters
   # obs. used (total)      496  
   data-arc span      9271 days (25.38 yr)  
   first obs. used      1994-09-12  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62993  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:38:54  

Additional Information
 Earth MOID = 1.0902 au 
 Jupiter MOID = 2.60615 au 
 T_jup = 3.472 
[ 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 16.0   n/a MPO385157  

52947 (1998 SY144)          Discovered 1998-Sep-20 by Elst, E. W. at La Silla
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SY144 = 1998 UR38 = 2001 KX35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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