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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1199494408736392 3.8073e-08  
a 2.361830053062643 1.2183e-08 au
q 2.078529858759222 8.9946e-08 au
i 5.165356674640424 4.0585e-06 deg
node 64.70828760259626 5.2339e-05 deg
peri 175.6103721017403 5.5889e-05 deg
M 66.23928513412231 2.1098e-05 deg
tp 2458956.559151756219
(2020-Apr-17.05915176)
7.723e-05 TDB
period 1325.779787477243
3.63
1.0258e-05
2.808e-08
d
yr
n .2715383077947093 2.1009e-09 deg/d
Q 2.645130247366065 1.3644e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5761  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:10  

Additional Information
 Earth MOID = 1.06456 au 
 Jupiter MOID = 2.35567 au 
 T_jup = 3.535 
[ 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 15.99   n/a E2021B55  

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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