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52743 (1998 HW135)
Classification: Main-belt Asteroid          SPK-ID: 2052743
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02923183192132526 3.7102e-08  
a 2.977753049089916 1.9416e-08 au
q 2.890707872455706 1.1365e-07 au
i 10.33954965417529 4.2926e-06 deg
node 29.8839061766152 2.2121e-05 deg
peri 196.0350955592573 7.7748e-05 deg
M 77.8483309678723 7.3161e-05 deg
tp 2458594.638132788453
(2019-Apr-21.13813279)
0.00038245 TDB
period 1876.858121164552
5.14
1.8356e-05
5.026e-08
d
yr
n .1918099167648471 1.876e-09 deg/d
Q 3.064798225724126 1.9983e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1676  
   data-arc span      25776 days (70.57 yr)  
   first obs. used      1949-11-21  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47784  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 22:05:22  

Additional Information
 Earth MOID = 1.88357 au 
 Jupiter MOID = 1.90079 au 
 T_jup = 3.235 
[ 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 13.0   n/a MPO493239  
diameter diameter 9.604 km 0.253 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.145   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52743 (1998 HW135)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HW135 = 2000 QO146 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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