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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1779142352951503 4.6203e-08  
a 3.221780644686824 3.0403e-08 au
q 2.648580004998652 1.5178e-07 au
i 6.820120844803455 5.2917e-06 deg
node 81.39222787495997 4.5622e-05 deg
peri 189.8589018522823 4.9674e-05 deg
M 250.176665115528 2.4713e-05 deg
tp 2459644.868802408090
(2022-Mar-06.36880241)
0.00015036 TDB
period 2112.235702102241
5.78
2.9899e-05
8.186e-08
d
yr
n .1704355246157915 2.4125e-09 deg/d
Q 3.794981284374997 3.5812e-08 au
  Orbit Determination Parameters
   # obs. used (total)      489  
   data-arc span      7957 days (21.79 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59159  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:12:32  

Additional Information
 Earth MOID = 1.63272 au 
 Jupiter MOID = 1.31688 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 14.7   n/a MPO436470  
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

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