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359280 (2009 HW7)
Classification: Main-belt Asteroid          SPK-ID: 2359280
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06332324580486878 6.9629e-08  
a 2.639985690344571 2.8248e-08 au
q 2.472813227553545 1.8824e-07 au
i 15.92328517053298 7.7015e-06 deg
node 192.7465876932085 1.6561e-05 deg
peri 1.079744728421135 4.5974e-05 deg
M 321.7191451734595 4.8417e-05 deg
tp 2459563.101885641830
(2021-Dec-14.60188564)
0.00021227 TDB
period 1566.753906171297
4.29
2.5147e-05
6.885e-08
d
yr
n .2297744391011209 3.6879e-09 deg/d
Q 2.807158153135596 3.0037e-08 au
  Orbit Determination Parameters
   # obs. used (total)      189  
   data-arc span      6613 days (18.11 yr)  
   first obs. used      2002-10-09  
   last obs. used      2020-11-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52099  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 09:27:30  

Additional Information
 Earth MOID = 1.47297 au 
 Jupiter MOID = 2.14608 au 
 T_jup = 3.338 
[ 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 16.4   n/a MPO455593  

359280 (2009 HW7)          Discovered 2009-Apr-17 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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