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52728 (1998 GW9)
Classification: Main-belt Asteroid          SPK-ID: 2052728
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1810705439107005 4.5165e-08  
a 3.159002876554451 2.3098e-08 au
q 2.587000507481269 1.5098e-07 au
i 14.79998634535755 4.6251e-06 deg
node 69.70918910070014 1.8373e-05 deg
peri 79.75053401611984 2.9599e-05 deg
M 40.42692561100498 1.7286e-05 deg
tp 2458970.201200811172
(2020-Apr-30.70120081)
9.9018e-05 TDB
period 2050.800709055375
5.61
2.2493e-05
6.158e-08
d
yr
n .1755411915016455 1.9253e-09 deg/d
Q 3.731005245627633 2.728e-08 au
  Orbit Determination Parameters
   # obs. used (total)      914  
   data-arc span      8576 days (23.48 yr)  
   first obs. used      1996-12-17  
   last obs. used      2020-06-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49075  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:47:25  

Additional Information
 Earth MOID = 1.6489 au 
 Jupiter MOID = 1.62818 au 
 T_jup = 3.129 
[ 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 14.22   n/a E2021B10  
diameter diameter 7.162 km 0.114 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.150   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52728 (1998 GW9)          Discovered 1998-Apr-02 by LINEAR at Socorro
Reference: 20030216/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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