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19480 (1998 HJ100)
Classification: Main-belt Asteroid          SPK-ID: 2019480
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1096272222301764 1.4589e-08  
a 2.777431173245359 1.1087e-08 au
q 2.47294910878697 4.0796e-08 au
i 8.92341134952917 4.7704e-07 deg
node 191.2903207421913 4.9356e-06 deg
peri 297.5608256213837 1.6744e-05 deg
M 39.69357454151086 1.2939e-05 deg
tp 2459014.084897117482
(2020-Jun-13.58489712)
6.0729e-05 TDB
period 1690.687669550254
4.63
1.0123e-05
2.772e-08
d
yr
n .212931108733859 1.275e-09 deg/d
Q 3.081913237703747 1.2302e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2044  
   data-arc span      10722 days (29.36 yr)  
   first obs. used      1991-11-06  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48583  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:54:42  

Additional Information
 Earth MOID = 1.50202 au 
 Jupiter MOID = 1.99874 au 
 T_jup = 3.308 
[ 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 13.55   n/a E2021B10  

19480 (1998 HJ100)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HJ100 = 1991 VG6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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