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JPL Small-Body Database Browser
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46549 (1989 SA2)
Classification: Main-belt Asteroid          SPK-ID: 2046549
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1720336650058882 5.9483e-08  
a 2.703243511208588 1.9944e-08 au
q 2.238194622571988 1.5776e-07 au
i 6.404910515169535 6.1839e-06 deg
node 57.50471508718261 5.1612e-05 deg
peri 285.4654965107468 5.5137e-05 deg
M 256.7558149608814 2.4612e-05 deg
tp 2459066.074601703159
(2020-Aug-04.57460170)
0.00011447 TDB
period 1623.402388712083
4.44
1.7966e-05
4.919e-08
d
yr
n .2217564804038535 2.4541e-09 deg/d
Q 3.168292399845187 2.3375e-08 au
  Orbit Determination Parameters
   # obs. used (total)      588  
   data-arc span      10817 days (29.62 yr)  
   first obs. used      1989-09-26  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56794  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:33:47  

Additional Information
 Earth MOID = 1.24019 au 
 Jupiter MOID = 2.26449 au 
 T_jup = 3.336 
[ 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 15.1   n/a MPO309514  

46549 (1989 SA2)          Discovered 1989-Sep-26 by Elst, E. W. at La Silla
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1989 SA2 = 1998 TM34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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