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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 ]

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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 .09159876506768319 3.8229e-08  
a 3.014501025708142 1.6913e-08 au
q 2.738376454458012 1.2085e-07 au
i 10.50464284460772 3.9655e-06 deg
node 145.6274961186463 1.7505e-05 deg
peri 173.516198257312 3.0659e-05 deg
M 350.6542317186063 2.2349e-05 deg
tp 2459050.128835963078
(2020-Jul-19.62883596)
0.00011852 TDB
period 1911.708102401569
5.23
1.6089e-05
4.405e-08
d
yr
n .1883132678821378 1.5848e-09 deg/d
Q 3.290625596958273 1.8462e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1066  
   data-arc span      10471 days (28.67 yr)  
   first obs. used      1992-02-29  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54173  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:49:11  

Additional Information
 Earth MOID = 1.72579 au 
 Jupiter MOID = 2.02786 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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