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120812 (1998 HZ24)
Classification: Main-belt Asteroid          SPK-ID: 2120812
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1427901287299418 6.4291e-08  
a 2.789527743103873 2.2533e-08 au
q 2.391210717570327 1.8935e-07 au
i 13.45897644630953 5.3482e-06 deg
node 84.65157017719405 2.0564e-05 deg
peri 89.72194516524152 2.9452e-05 deg
M 304.2074389413138 1.9806e-05 deg
tp 2459264.235293088025
(2021-Feb-18.73529309)
9.4641e-05 TDB
period 1701.744886954014
4.66
2.0619e-05
5.645e-08
d
yr
n .2115475725884924 2.5632e-09 deg/d
Q 3.187844768637419 2.575e-08 au
  Orbit Determination Parameters
   # obs. used (total)      509  
   data-arc span      7959 days (21.79 yr)  
   first obs. used      1998-04-17  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60324  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 06:23:14  

Additional Information
 Earth MOID = 1.44198 au 
 Jupiter MOID = 1.95959 au 
 T_jup = 3.275 
[ 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 15.1   n/a MPO453678  

120812 (1998 HZ24)          Discovered 1998-Apr-17 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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