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58821 (1998 HZ5)
Classification: Main-belt Asteroid          SPK-ID: 2058821
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1465590588278967 3.835e-08  
a 3.111313813848763 1.9768e-08 au
q 2.655322589572854 1.1326e-07 au
i 5.633741678079009 4.0199e-06 deg
node 160.3003678605112 4.3502e-05 deg
peri 347.6330765544933 4.6082e-05 deg
M 59.40524911114935 1.6102e-05 deg
tp 2458669.722109426434
(2019-Jul-05.22210943)
8.8573e-05 TDB
period 2004.537349615027
5.49
1.9104e-05
5.23e-08
d
yr
n .1795925628769842 1.7116e-09 deg/d
Q 3.567305038124672 2.2665e-08 au
  Orbit Determination Parameters
   # obs. used (total)      654  
   data-arc span      10889 days (29.81 yr)  
   first obs. used      1990-11-13  
   last obs. used      2020-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52593  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:49:27  

Additional Information
 Earth MOID = 1.66712 au 
 Jupiter MOID = 1.43958 au 
 T_jup = 3.195 
[ 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 14.9   n/a MPO436193  
diameter diameter 6.829 km 0.383 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58821 (1998 HZ5)          Discovered 1998-Apr-21 by ODAS at Caussols
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HZ5 = 1995 UJ71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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