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359281 (2009 HP8)
Classification: Main-belt Asteroid          SPK-ID: 2359281
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03028721183422901 7.9781e-08  
a 2.731690872149386 4.1657e-08 au
q 2.648955572038968 2.3736e-07 au
i 7.151871383112043 6.8689e-06 deg
node 104.2029916965474 5.4431e-05 deg
peri 234.1202912674402 0.00014102 deg
M 45.75483001066247 0.00012362 deg
tp 2458790.905346800552
(2019-Nov-03.40534680)
0.00056897 TDB
period 1649.095300632041
4.51
3.7722e-05
1.033e-07
d
yr
n .2183015134795573 4.9935e-09 deg/d
Q 2.814426172259805 4.2919e-08 au
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      5671 days (15.53 yr)  
   first obs. used      2004-02-13  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57593  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:44:32  

Additional Information
 Earth MOID = 1.64444 au 
 Jupiter MOID = 2.31354 au 
 T_jup = 3.342 
[ 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 16.8   n/a MPO494867  

359281 (2009 HP8)          Discovered 2009-Apr-17 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 2009 HP8 = 2004 FO153 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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