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(1998 HH49)
Classification: Apollo [NEO, PHA]          SPK-ID: 3013045
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5023285464423836 3.4518e-07  
a 1.550750352905033 2.7678e-07 au
q .7717641822352346 4.1422e-07 au
i 8.418292545450459 3.373e-05 deg
node 23.49776931427357 0.00010865 deg
peri 287.8578243277265 0.00012478 deg
M 114.6524523329448 0.0011475 deg
tp 2458775.857404893389
(2019-Oct-19.35740489)
0.0021883 TDB
period 705.3607017801385
1.93
0.00018884
5.17e-07
d
yr
n .5103771716959252 1.3664e-07 deg/d
Q 2.329736523574832 4.1581e-07 au
  Orbit Determination Parameters
   # obs. used (total)      19  
   data-arc span      971 days (2.66 yr)  
   first obs. used      1998-04-28  
   last obs. used      2000-12-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .79369  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:17:50  

Additional Information
 Earth MOID = .00276723 au 
 Jupiter MOID = 3.00925 au 
 T_jup = 4.289 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 21.3   .8917 12 autocmod 2.6i

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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