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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .208774880353108 4.6999e-08  
a 2.28785576628953 1.2545e-08 au
q 1.810208952417265 1.1006e-07 au
i 6.189716890866902 4.145e-06 deg
node 73.81689225717034 4.7069e-05 deg
peri 256.4033934745439 4.8093e-05 deg
M 194.4786403171977 1.0008e-05 deg
tp 2459781.656278197198
(2022-Jul-21.15627820)
3.713e-05 TDB
period 1263.983455379559
3.46
1.0396e-05
2.846e-08
d
yr
n .2848138545388605 2.3425e-09 deg/d
Q 2.765502580161794 1.5164e-08 au
  Orbit Determination Parameters
   # obs. used (total)      477  
   data-arc span      10222 days (27.99 yr)  
   first obs. used      1993-01-29  
   last obs. used      2021-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51045  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-23 21:40:52  

Additional Information
 Earth MOID = .809575 au 
 Jupiter MOID = 2.60528 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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