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7557 (1982 FK3)
Classification: Main-belt Asteroid          SPK-ID: 2007557
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2192041917727117 9.233e-08  
a 2.467128831060784 2.0854e-08 AU
q 1.92632384964895 2.1895e-07 AU
i 4.456460992881696 1.0157e-05 deg
node 188.5566110746045 7.7418e-05 deg
peri 298.427340891291 8.1028e-05 deg
M 201.3135940625482 2.6682e-05 deg
tp 2457624.412077804345
(2016-Aug-23.91207780)
0.0001109 JED
period 1415.42274325689
3.88
1.7946e-05
4.913e-08
d
yr
n .2543409746063847 3.2248e-09 deg/d
Q 3.007933812472618 2.5425e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      866  
   data-arc span      13270 days (36.33 yr)  
   first obs. used      1978-03-05  
   last obs. used      2014-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50728  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:51:57  

Additional Information
 Earth MOID = .94628 AU 
 T_jup = 3.449 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO267738  
rotation period rot_per 5.650 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2009) http://www.asu.cas.cz/~ppravec/neo.htm]

7557 (1982 FK3)          Discovered 1982-Mar-21 by Debehogne, H. at La Silla (809)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1982 FK3 = 1978 EN8 = 1986 GA3 = 1986 GN1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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