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120823 (1998 HZ107)
Classification: Main-belt Asteroid          SPK-ID: 2120823
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1127468730390338 2.8166e-08  
a 2.598536921461585 1.4737e-08 au
q 2.305560009090313 7.0756e-08 au
i 12.48769229693124 4.6586e-06 deg
node 54.8492120713851 1.5555e-05 deg
peri 229.662310536847 2.9066e-05 deg
M 81.46556286874346 2.2791e-05 deg
tp 2458854.271091612778
(2020-Jan-05.77109161)
9.7628e-05 TDB
period 1530.001176327999
4.19
1.3016e-05
3.564e-08
d
yr
n .2352939367432381 2.0017e-09 deg/d
Q 2.891513833832855 1.6399e-08 au
  Orbit Determination Parameters
   # obs. used (total)      986  
   data-arc span      8301 days (22.73 yr)  
   first obs. used      1998-04-21  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53027  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:25:58  

Additional Information
 Earth MOID = 1.30828 au 
 Jupiter MOID = 2.23919 au 
 T_jup = 3.374 
[ 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 15.26   n/a E2021B55  
diameter diameter 4.684 km 0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.088   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120823 (1998 HZ107)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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