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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02948969961376332 3.3448e-08  
a 2.97524812514167 1.7438e-08 au
q 2.887508951654829 9.8663e-08 au
i 10.34307530486996 3.8456e-06 deg
node 29.83860899283476 2.1589e-05 deg
peri 194.4755754744324 7.5418e-05 deg
M 117.8250906710972 7.1063e-05 deg
tp 2458586.994452595999
(2019-Apr-13.49445260)
0.0003712 TDB
period 1874.490363703309
5.13
1.648e-05
4.512e-08
d
yr
n .1920522009453126 1.6885e-09 deg/d
Q 3.06298729862851 1.7953e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1931  
   data-arc span      25992 days (71.16 yr)  
   first obs. used      1949-11-21  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46105  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:47:38  

Additional Information
 Earth MOID = 1.87926 au 
 Jupiter MOID = 1.90053 au 
 T_jup = 3.236 
[ 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 13.01   n/a E2021B10  
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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