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48874 (1998 HW100)
Classification: Main-belt Asteroid          SPK-ID: 2048874
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1724098014345567 3.4137e-08  
a 2.211060335691398 8.1052e-09 au
q 1.82985186225502 7.3934e-08 au
i 3.724754391837125 3.9517e-06 deg
node 203.17912782 6.152e-05 deg
peri 61.63577445580443 6.284e-05 deg
M 227.6647769807695 1.2853e-05 deg
tp 2459441.940596977489
(2021-Aug-15.44059698)
4.3043e-05 TDB
period 1200.879186101516
3.29
6.6032e-06
1.808e-08
d
yr
n .2997803643917661 1.6484e-09 deg/d
Q 2.592268809127776 9.5026e-09 au
  Orbit Determination Parameters
   # obs. used (total)      833  
   data-arc span      9512 days (26.04 yr)  
   first obs. used      1994-01-10  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55145  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:15:49  

Additional Information
 Earth MOID = .817818 au 
 Jupiter MOID = 2.48344 au 
 T_jup = 3.635 
[ 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 15.9   n/a MPO395464  

48874 (1998 HW100)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HW100 = 1999 VZ115 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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