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100874 (1998 HG83)
Classification: Outer Main-belt Asteroid          SPK-ID: 2100874
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1778168445012575 4.3646e-08  
a 3.22017711321206 2.3245e-08 au
q 2.647575380205523 1.4809e-07 au
i 6.82017884557111 4.5689e-06 deg
node 81.38160850203205 4.4038e-05 deg
peri 190.0213451999758 4.6979e-05 deg
M 317.5315946915482 1.94e-05 deg
tp 2459645.489778089293
(2022-Mar-06.98977809)
0.0001146 TDB
period 2110.658958374087
5.78
2.2854e-05
6.257e-08
d
yr
n .1705628465326868 1.8468e-09 deg/d
Q 3.792778846218597 2.7379e-08 au
  Orbit Determination Parameters
   # obs. used (total)      605  
   data-arc span      8426 days (23.07 yr)  
   first obs. used      1998-04-21  
   last obs. used      2021-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55461  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 00:00:50  

Additional Information
 Earth MOID = 1.63163 au 
 Jupiter MOID = 1.31758 au 
 T_jup = 3.153 
[ 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 14.80   n/a E2021B55  
diameter diameter 5.964 km 0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100874 (1998 HG83)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 HG83 = 2003 EB2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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