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JPL Small-Body Database Browser
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91126 (1998 HZ120)
Classification: Main-belt Asteroid          SPK-ID: 2091126
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1186687436965307 5.3599e-08  
a 2.663831691137925 1.3856e-08 au
q 2.347718130931583 1.4652e-07 au
i 13.5580573135212 4.3943e-06 deg
node 71.687106832826 2.3824e-05 deg
peri 72.23424605734525 3.6759e-05 deg
M 90.73881764244618 2.4194e-05 deg
tp 2458600.233527286092
(2019-Apr-26.73352729)
0.00010681 TDB
period 1588.02962084885
4.35
1.239e-05
3.392e-08
d
yr
n .2266960233446837 1.7688e-09 deg/d
Q 2.979945251344268 1.55e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1021  
   data-arc span      7951 days (21.77 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60247  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:23:45  

Additional Information
 Earth MOID = 1.40191 au 
 Jupiter MOID = 2.18814 au 
 T_jup = 3.335 
[ 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 14.7   n/a MPO468896  
diameter diameter 3.309 km 0.362 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.280   0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91126 (1998 HZ120)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1998 HZ120 = 2000 TP55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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