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46550 (1989 SZ13)
Classification: Main-belt Asteroid          SPK-ID: 2046550
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08924110685555908 4.3621e-08  
a 2.714158009190618 1.1434e-08 au
q 2.471943544269566 1.1968e-07 au
i 11.78765059256183 4.6308e-06 deg
node 306.5153875721385 1.9146e-05 deg
peri 62.373285958863 3.0381e-05 deg
M 2.615766341328608 2.2121e-05 deg
tp 2459188.632819061435
(2020-Dec-05.13281906)
0.00010035 TDB
period 1633.244174138782
4.47
1.032e-05
2.825e-08
d
yr
n .220420195400256 1.3928e-09 deg/d
Q 2.956372474111669 1.2454e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1092  
   data-arc span      11459 days (31.37 yr)  
   first obs. used      1989-09-26  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5373  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:49:54  

Additional Information
 Earth MOID = 1.49149 au 
 Jupiter MOID = 2.48625 au 
 T_jup = 3.325 
[ 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 14.71   n/a MPCxxxxx  
diameter diameter 3.590 km 0.591 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.137   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

46550 (1989 SZ13)          Discovered 1989-Sep-26 by Baur, J. M., Birkle, K. at Calar Alto
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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