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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09065714404850315 3.7727e-08  
a 3.011383321957054 1.6514e-08 au
q 2.738379910353134 1.1918e-07 au
i 10.50849557825919 3.8087e-06 deg
node 145.6284923942895 1.7479e-05 deg
peri 173.3302912465978 3.0888e-05 deg
M 65.49056648432874 2.2428e-05 deg
tp 2459049.264807824054
(2020-Jul-18.76480782)
0.00011997 TDB
period 1908.743134986516
5.23
1.5701e-05
4.299e-08
d
yr
n .1886057863949007 1.5514e-09 deg/d
Q 3.284386733560975 1.8011e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1088  
   data-arc span      10498 days (28.74 yr)  
   first obs. used      1992-02-29  
   last obs. used      2020-11-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53385  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:33:00  

Additional Information
 Earth MOID = 1.72511 au 
 Jupiter MOID = 2.03204 au 
 T_jup = 3.218 
[ 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 14.76   n/a E2021B10  
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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