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19460 (1998 HW13)
Classification: Main-belt Asteroid          SPK-ID: 2019460
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2388915247126901 4.3323e-08  
a 2.656570272148901 1.297e-08 au
q 2.021938149328844 1.2037e-07 au
i 13.29902465441289 5.033e-06 deg
node 347.1696692393303 1.694e-05 deg
peri 312.6152773603341 1.9559e-05 deg
M 357.7901120530148 1.0301e-05 deg
tp 2459210.208410739107
(2020-Dec-26.70841074)
4.5277e-05 TDB
period 1581.540761307191
4.33
1.1582e-05
3.171e-08
d
yr
n .2276261281450938 1.667e-09 deg/d
Q 3.291202394968958 1.6069e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1539  
   data-arc span      12403 days (33.96 yr)  
   first obs. used      1986-09-07  
   last obs. used      2020-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48188  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:12:47  

Additional Information
 Earth MOID = 1.03068 au 
 Jupiter MOID = 2.09278 au 
 T_jup = 3.309 
[ 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 13.86   n/a E2021B10  

19460 (1998 HW13)          Discovered 1998-Apr-18 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HW13 = 1986 RE15 = 1986 RW7 = 1999 RG32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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