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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1709173188214684 5.0199e-08  
a 2.702644831614245 1.1283e-08 au
q 2.240716023268039 1.3679e-07 au
i 6.400089255488998 4.1899e-06 deg
node 57.4719990141032 4.3867e-05 deg
peri 285.3226690777375 4.556e-05 deg
M 29.88747253211163 1.0778e-05 deg
tp 2459065.768674953321
(2020-Aug-04.26867495)
4.8761e-05 TDB
period 1622.863123159431
4.44
1.0163e-05
2.782e-08
d
yr
n .2218301684612457 1.3892e-09 deg/d
Q 3.164573639960451 1.3212e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1010  
   data-arc span      11455 days (31.36 yr)  
   first obs. used      1989-09-26  
   last obs. used      2021-02-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48375  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:49:53  

Additional Information
 Earth MOID = 1.24176 au 
 Jupiter MOID = 2.27085 au 
 T_jup = 3.337 
[ 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 15.15   n/a E2021B10  

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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