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4456 Mawson (1989 OG)
Classification: Main-belt Asteroid          SPK-ID: 2004456
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2769138928890387 4.6822e-08  
a 2.375372433764537 1.1258e-08 au
q 1.717598806069489 1.0854e-07 au
i 15.00588794081512 4.4078e-06 deg
node 358.162923925064 1.73e-05 deg
peri 346.0111420230464 1.9241e-05 deg
M 132.0886759263899 1.234e-05 deg
tp 2458509.864372688849
(2019-Jan-26.36437269)
4.3658e-05 TDB
period 1337.198852159332
3.66
9.5062e-06
2.603e-08
d
yr
n .269219495229648 1.9139e-09 deg/d
Q 3.033146061459585 1.4375e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1667  
   data-arc span      23775 days (65.09 yr)  
   first obs. used      1955-04-16  
   last obs. used      2020-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44935  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:51:27  

Additional Information
 Earth MOID = .714685 au 
 Jupiter MOID = 2.4007 au 
 T_jup = 3.445 
[ 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 13.7   n/a MPO458875  
diameter diameter 7.591 km 0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.134   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B Ld   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

4456 Mawson (1989 OG)          Discovered 1989-Jul-27 by McNaught, R. H. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1989 OG = 1938 UZ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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