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100842 (1998 HX19)
Classification: Main-belt Asteroid          SPK-ID: 2100842
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1502417401863758 4.4241e-08  
a 2.774563913274345 1.5714e-08 au
q 2.357708602685686 1.2826e-07 au
i 6.298852801670829 4.8069e-06 deg
node 8.306584095925343 3.9737e-05 deg
peri 130.5599893262573 4.3883e-05 deg
M 326.5195002911939 1.7379e-05 deg
tp 2459157.492880378353
(2020-Nov-03.99288038)
8.1923e-05 TDB
period 1688.070292491535
4.62
1.4341e-05
3.926e-08
d
yr
n .2132612614541378 1.8117e-09 deg/d
Q 3.191419223863003 1.8075e-08 au
  Orbit Determination Parameters
   # obs. used (total)      676  
   data-arc span      10601 days (29.02 yr)  
   first obs. used      1991-10-13  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58626  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:56  

Additional Information
 Earth MOID = 1.37642 au 
 Jupiter MOID = 1.83972 au 
 T_jup = 3.311 
[ 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 15.2   n/a MPO412742  

100842 (1998 HX19)          Discovered 1998-Apr-18 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 HX19 = 2000 SH203 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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