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JPL Small-Body Database Browser
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305890 (2009 FL21)
Classification: Main-belt Asteroid          SPK-ID: 2305890
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02987790976792302 7.641e-08  
a 2.677470218897162 3.1604e-08 au
q 2.597473005290651 1.9147e-07 au
i 1.824376637307644 6.4146e-06 deg
node 3.824511984058782 0.00019407 deg
peri 161.869298206815 0.00022772 deg
M 116.1601784592129 0.00012363 deg
tp 2458084.154769143325
(2017-Nov-26.65476914)
0.00054634 TDB
period 1600.241025573768
4.38
2.8333e-05
7.757e-08
d
yr
n .2249661108837787 3.9831e-09 deg/d
Q 2.757467432503672 3.2548e-08 au
  Orbit Determination Parameters
   # obs. used (total)      172  
   data-arc span      7178 days (19.65 yr)  
   first obs. used      2000-01-30  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56949  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:41:20  

Additional Information
 Earth MOID = 1.60394 au 
 Jupiter MOID = 2.2071 au 
 T_jup = 3.377 
[ 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 16.8   n/a MPO440440  

305890 (2009 FL21)          Discovered 2009-Mar-19 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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