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100887 (1998 HB116)
Classification: Main-belt Asteroid          SPK-ID: 2100887
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1843180970966556 5.519e-08  
a 3.096335843314231 2.2969e-08 au
q 2.525625112702384 1.7659e-07 au
i 11.23320865373643 5.5898e-06 deg
node 78.27990479830929 2.3085e-05 deg
peri 177.0281501234308 2.712e-05 deg
M 19.67465979196757 1.1921e-05 deg
tp 2459091.738485164505
(2020-Aug-30.23848516)
6.6098e-05 TDB
period 1990.079917761182
5.45
2.2144e-05
6.063e-08
d
yr
n .1808972578372611 2.0129e-09 deg/d
Q 3.667046573926079 2.7203e-08 au
  Orbit Determination Parameters
   # obs. used (total)      712  
   data-arc span      8149 days (22.31 yr)  
   first obs. used      1998-03-24  
   last obs. used      2020-07-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5066  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:13  

Additional Information
 Earth MOID = 1.50922 au 
 Jupiter MOID = 1.39639 au 
 T_jup = 3.168 
[ 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 14.79   n/a E2021B55  
diameter diameter 7.126 km 0.142 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100887 (1998 HB116)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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