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21386 (1998 FC9)
Classification: Main-belt Asteroid          SPK-ID: 2021386
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0857907273844251 3.2189e-08  
a 2.203656473408974 5.147e-09 au
q 2.014603181649822 7.2004e-08 au
i 5.441313303525114 3.0917e-06 deg
node 166.4444836298741 3.5024e-05 deg
peri 267.7300730714091 3.9758e-05 deg
M 156.121257646607 1.8872e-05 deg
tp 2458878.328160032647
(2020-Jan-29.82816003)		 6.2172e-05 TDB
period 1194.852419204178
3.27		 4.1861e-06
1.146e-08		 d
yr
n .3012924393121079 1.0556e-09 deg/d
Q 2.392709765168128 5.5885e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1683  
   data-arc span      17428 days (47.72 yr)  
   first obs. used      1973-09-29  
   last obs. used      2021-06-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49898  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 05:07:11  

Additional Information
 Earth MOID = 1.03784 au 
 Jupiter MOID = 2.78129 au 
 T_jup = 3.652 
[ 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 15.09   n/a MPO614063  

21386 (1998 FC9)          Discovered 1998-Mar-22 by Spacewatch at Kitt Peak
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 FC9 = 4323 T-2 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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