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58876 (1998 HT121)
Classification: Main-belt Asteroid          SPK-ID: 2058876
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09226729294369315 4.1543e-08  
a 3.013288851881368 2.372e-08 au
q 2.735260846660865 1.3567e-07 au
i 10.49484244197558 4.3294e-06 deg
node 145.720579320412 2.6663e-05 deg
peri 174.2001237073168 3.8779e-05 deg
M 274.6702573282977 2.865e-05 deg
tp 2459053.353271289047
(2020-Jul-22.85327129)
0.0001532 TDB
period 1910.555130715534
5.23
2.256e-05
6.177e-08
d
yr
n .1884269101751459 2.2249e-09 deg/d
Q 3.291316857101871 2.5909e-08 au
  Orbit Determination Parameters
   # obs. used (total)      789  
   data-arc span      9934 days (27.20 yr)  
   first obs. used      1992-02-29  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56357  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:14:00  

Additional Information
 Earth MOID = 1.72186 au 
 Jupiter MOID = 2.02696 au 
 T_jup = 3.217 
[ 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 14.6   n/a MPO436193  
diameter diameter 4.509 km 0.196 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.166   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58876 (1998 HT121)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HT121 = 1992 DJ11 = 2000 WC102 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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