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118618 (2000 HB8)
Classification: Main-belt Asteroid          SPK-ID: 2118618
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .068321519231647 5.4847e-08  
a 2.37157097621524 1.4829e-08 au
q 2.209541644154535 1.2894e-07 au
i 6.38730303492504 5.7259e-06 deg
node 206.4044749991874 4.956e-05 deg
peri 288.4222544076789 6.3059e-05 deg
M 254.2179534478399 3.9038e-05 deg
tp 2459392.478350663026
(2021-Jun-26.97835066)
0.00014541 TDB
period 1333.990131955978
3.65
1.2512e-05
3.426e-08
d
yr
n .2698670637631674 2.5312e-09 deg/d
Q 2.533600308275946 1.5843e-08 au
  Orbit Determination Parameters
   # obs. used (total)      429  
   data-arc span      7141 days (19.55 yr)  
   first obs. used      2000-04-06  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54485  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 14:01:37  

Additional Information
 Earth MOID = 1.23254 au 
 Jupiter MOID = 2.49032 au 
 T_jup = 3.533 
[ 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 16.1   n/a MPO296888  
rotation period rot_per 1.17 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

118618 (2000 HB8)          Discovered 2000-Apr-27 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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