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120280 (2004 HP32)
Classification: Main-belt Asteroid          SPK-ID: 2120280
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2086684977197425 4.7005e-08  
a 2.28800216551459 1.27e-08 au
q 1.810568190857143 1.1003e-07 au
i 6.189999816597505 4.2037e-06 deg
node 73.82306101713765 4.7069e-05 deg
peri 256.3747992597125 4.8161e-05 deg
M 137.5550031615717 9.8963e-06 deg
tp 2458517.489063778207
(2019-Feb-02.98906378)
3.3771e-05 TDB
period 1264.104780220912
3.46
1.0525e-05
2.882e-08
d
yr
n .2847865189917938 2.3712e-09 deg/d
Q 2.765436140172037 1.535e-08 au
  Orbit Determination Parameters
   # obs. used (total)      474  
   data-arc span      9836 days (26.93 yr)  
   first obs. used      1993-01-29  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50873  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 17:02:14  

Additional Information
 Earth MOID = .811815 au 
 Jupiter MOID = 2.6052 au 
 T_jup = 3.564 
[ 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 16.3   n/a MPO348203  

120280 (2004 HP32)          Discovered 2004-Apr-20 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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