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180818 (2005 FH4)
Classification: Main-belt Asteroid          SPK-ID: 2180818
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1464967914170582 4.2625e-08  
a 2.239258845807326 1.3459e-08 au
q 1.911214609744288 9.118e-08 au
i 6.467188446413382 4.6762e-06 deg
node 56.9092557541487 4.1989e-05 deg
peri 212.0904313219989 4.5674e-05 deg
M 183.0227202565364 1.788e-05 deg
tp 2459802.185976179795
(2022-Aug-10.68597618)
6.2298e-05 TDB
period 1223.925193893293
3.35
1.1035e-05
3.021e-08
d
yr
n .2941356234810755 2.6519e-09 deg/d
Q 2.567303081870365 1.5431e-08 au
  Orbit Determination Parameters
   # obs. used (total)      418  
   data-arc span      6789 days (18.59 yr)  
   first obs. used      2002-05-17  
   last obs. used      2020-12-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62711  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:28:05  

Additional Information
 Earth MOID = .897153 au 
 Jupiter MOID = 2.513 au 
 T_jup = 3.613 
[ 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 16.6   n/a MPO436893  

180818 (2005 FH4)          Discovered 2005-Mar-30 by CSS at Catalina
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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