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58842 (1998 HP55)
Classification: Main-belt Asteroid          SPK-ID: 2058842
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08000213390437008 1.3332e-07  
a 2.565110033771914 1.8039e-08 au
q 2.35989575737065 3.5271e-07 au
i 3.403958936556484 7.707e-06 deg
node 180.0040618508824 6.8605e-05 deg
peri 323.3456731764592 9.3573e-05 deg
M 97.97130066114229 5.3396e-05 deg
tp 2458192.130029171175
(2018-Mar-14.63002917)
0.00022443 TDB
period 1500.574030417928
4.11
1.5829e-05
4.334e-08
d
yr
n .2399081902675175 2.5307e-09 deg/d
Q 2.770324310173178 1.9482e-08 au
  Orbit Determination Parameters
   # obs. used (total)      701  
   data-arc span      7791 days (21.33 yr)  
   first obs. used      1997-01-09  
   last obs. used      2018-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55343  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 01:29:21  

Additional Information
 Earth MOID = 1.37355 au 
 Jupiter MOID = 2.23166 au 
 T_jup = 3.426 
[ 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 15.5   n/a MPO474468  
diameter diameter 2.392 km 0.322 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.234   0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58842 (1998 HP55)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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