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118555 (2000 FH4)
Classification: Main-belt Asteroid          SPK-ID: 2118555
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .15443585415689 3.998e-08  
a 2.369150122114479 1.0941e-08 au
q 2.003268399379829 9.3389e-08 au
i 1.288440463922005 5.1027e-06 deg
node 311.3241937943502 0.000229 deg
peri 293.2318443916728 0.00022978 deg
M 207.1900954979653 2.1012e-05 deg
tp 2459765.874610638082
(2022-Jul-05.37461064)
7.9274e-05 TDB
period 1331.948086041761
3.65
9.2268e-06
2.526e-08
d
yr
n .2702808043141052 1.8723e-09 deg/d
Q 2.735031844849129 1.2631e-08 au
  Orbit Determination Parameters
   # obs. used (total)      520  
   data-arc span      11073 days (30.32 yr)  
   first obs. used      1990-09-25  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53566  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:57:48  

Additional Information
 Earth MOID = .988959 au 
 Jupiter MOID = 2.28493 au 
 T_jup = 3.529 
[ 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 16.5   n/a MPO493677  
rotation period rot_per 6.96 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.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

118555 (2000 FH4)          Discovered 2000-Mar-27 by Spacewatch at Kitt Peak
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 2000 FH4 = 1997 PJ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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