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JPL Small-Body Database Browser
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100837 (1998 HG15)
Classification: Main-belt Asteroid          SPK-ID: 2100837
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2192356077509132 3.357e-08  
a 2.207176998878734 6.6524e-09 au
q 1.723285208115718 7.483e-08 au
i 5.988394070518397 3.3195e-06 deg
node 77.69675246745724 3.8729e-05 deg
peri 259.6152102851373 3.9737e-05 deg
M 177.6824406080117 8.0886e-06 deg
tp 2458409.352061263918
(2018-Oct-17.85206126)
2.6115e-05 TDB
period 1197.716877462756
3.28
5.4148e-06
1.482e-08
d
yr
n .3005718686728571 1.3589e-09 deg/d
Q 2.691068789641749 8.1108e-09 au
  Orbit Determination Parameters
   # obs. used (total)      784  
   data-arc span      7958 days (21.79 yr)  
   first obs. used      1998-04-20  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5779  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:11:52  

Additional Information
 Earth MOID = .726441 au 
 Jupiter MOID = 2.70824 au 
 T_jup = 3.621 
[ 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 16.1   n/a MPO449611  

100837 (1998 HG15)          Discovered 1998-Apr-20 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 HG15 = 2002 RA65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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