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JPL Small-Body Database Browser
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441442 (2008 HW43)
Classification: Main-belt Asteroid          SPK-ID: 2441442
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .130398837707678 7.1967e-08  
a 2.170720917717169 2.0701e-08 au
q 1.887661433059106 1.6466e-07 au
i 2.836815249216176 5.739e-06 deg
node 71.76467042322609 0.00014317 deg
peri 237.8557175565081 0.00014625 deg
M 201.2336235008225 2.3551e-05 deg
tp 2459515.681721590329
(2021-Oct-28.18172159)
7.5303e-05 TDB
period 1168.165601949599
3.20
1.671e-05
4.575e-08
d
yr
n .3081754841943481 4.4083e-09 deg/d
Q 2.453780402375232 2.34e-08 au
  Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      6357 days (17.40 yr)  
   first obs. used      2002-08-10  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64478  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 11:44:29  

Additional Information
 Earth MOID = .874901 au 
 Jupiter MOID = 2.76244 au 
 T_jup = 3.676 
[ 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 18.3   n/a MPO456091  

441442 (2008 HW43)          Discovered 2008-Apr-01 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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