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100875 (1998 HW84)
Classification: Main-belt Asteroid          SPK-ID: 2100875
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .119600226537346 3.8105e-08  
a 2.361442936818676 1.195e-08 au
q 2.079013826620146 8.9818e-08 au
i 5.166867382574849 4.0596e-06 deg
node 64.72777132591393 5.2309e-05 deg
peri 175.6613492571397 5.5871e-05 deg
M 11.89192703767155 2.1026e-05 deg
tp 2458956.716109870874
(2020-Apr-17.21610987)
7.7341e-05 TDB
period 1325.453847518028
3.63
1.0061e-05
2.755e-08
d
yr
n .2716050812890363 2.0616e-09 deg/d
Q 2.643872047017205 1.3379e-08 au
  Orbit Determination Parameters
   # obs. used (total)      639  
   data-arc span      8115 days (22.22 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-07-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57615  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:47  

Additional Information
 Earth MOID = 1.06647 au 
 Jupiter MOID = 2.35813 au 
 T_jup = 3.536 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO426633  

100875 (1998 HW84)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 HW84 = 2003 VW5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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