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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2770625783876156 1.3795e-08  
a 2.375153374445247 9.6863e-09 au
q 1.717087256455401 3.0947e-08 au
i 15.00792367081517 4.619e-07 deg
node 358.1586682626085 2.0682e-06 deg
peri 346.0251570408812 3.7775e-06 deg
M 185.9136754430733 4.8822e-06 deg
tp 2459847.043978289830
(2022-Sep-24.54397829)
2.1385e-05 TDB
period 1337.013879618252
3.66
8.1788e-06
2.239e-08
d
yr
n .2692567410764564 1.6471e-09 deg/d
Q 3.033219492435093 1.237e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1844  
   data-arc span      24084 days (65.94 yr)  
   first obs. used      1955-04-16  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44218  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:38:19  

Additional Information
 Earth MOID = .71242 au 
 Jupiter MOID = 2.40134 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 13.71   n/a MPCxxxxx  
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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