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18494 (1996 HH10)
Classification: Main-belt Asteroid          SPK-ID: 2018494
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1131169433180224 2.8281e-08  
a 2.167857660156986 5.8295e-09 au
q 1.922636228091468 6.0287e-08 au
i 3.272964690572974 4.3262e-06 deg
node 198.579596011646 4.663e-05 deg
peri 101.6459485231815 5.0926e-05 deg
M 190.0248235856423 2.159e-05 deg
tp 2459750.962289010222
(2022-Jun-20.46228901)
7.0636e-05 TDB
period 1165.85508674866
3.19
4.7026e-06
1.288e-08
d
yr
n .3087862326045761 1.2455e-09 deg/d
Q 2.413079092222504 6.4889e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1227  
   data-arc span      9102 days (24.92 yr)  
   first obs. used      1996-04-17  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52332  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:44:07  

Additional Information
 Earth MOID = .908424 au 
 Jupiter MOID = 2.75173 au 
 T_jup = 3.681 
[ 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 16.00   n/a MPCxxxxx  
rotation period rot_per 3.35 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) Ap. J. Supp. Ser. 241, A6.]

18494 (1996 HH10)          Discovered 1996-Apr-17 by Elst, E. W. at La Silla
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1996 HH10 = 1998 BD35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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