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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1131671778379454 2.8901e-08  
a 2.167664718840494 6.1974e-09 au
q 1.922356220110432 6.1276e-08 au
i 3.273038485937819 5.399e-06 deg
node 198.58864420112 4.7955e-05 deg
peri 101.5747347851009 5.3862e-05 deg
M 128.3381964496384 2.4433e-05 deg
tp 2458584.933987153446
(2019-Apr-11.43398715)
7.894e-05 TDB
period 1165.699446956666
3.19
4.9992e-06
1.369e-08
d
yr
n .3088274605773084 1.3244e-09 deg/d
Q 2.412973217570556 6.8988e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1071  
   data-arc span      8692 days (23.80 yr)  
   first obs. used      1996-04-17  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53826  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:27:10  

Additional Information
 Earth MOID = .91011 au 
 Jupiter MOID = 2.75259 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 15.9   n/a MPO435871  
rotation period rot_per 3.35 h n/a LCDB (Rev. 2019-August); 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) ArXiv:1901.08719.]

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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