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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1502075220411826 3.7814e-08  
a 2.774555524062818 1.1941e-08 au
q 2.357796414027667 1.0586e-07 au
i 6.299102177413832 4.6318e-06 deg
node 8.300706842223365 3.3906e-05 deg
peri 130.5216223638004 3.8729e-05 deg
M 9.203517734774577 1.6073e-05 deg
tp 2459157.344126635012
(2020-Nov-03.84412664)
7.5335e-05 TDB
period 1688.062636386741
4.62
1.0898e-05
2.984e-08
d
yr
n .2132622286875395 1.3767e-09 deg/d
Q 3.191314634097968 1.3735e-08 au
  Orbit Determination Parameters
   # obs. used (total)      833  
   data-arc span      10755 days (29.45 yr)  
   first obs. used      1991-10-13  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55974  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:32:10  

Additional Information
 Earth MOID = 1.3764 au 
 Jupiter MOID = 1.83922 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 15.29   n/a MPCxxxxx  

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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