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19180 (1991 RK16)
Classification: Main-belt Asteroid          SPK-ID: 2019180
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1390900566573268 6.5211e-08  
a 2.593543969576044 2.4152e-08 AU
q 2.232807791904444 1.7038e-07 AU
i 2.845930578439085 6.009e-06 deg
node 61.55891689154242 0.00011906 deg
peri 283.4905101690467 0.00012113 deg
M 163.8024154350424 2.1882e-05 deg
tp 2456106.344689521379
(2012-Jun-27.84468952)
9.3523e-05 JED
period 1525.593570208387
4.18
2.131e-05
5.834e-08
d
yr
n .2359737265743891 3.2962e-09 deg/d
Q 2.954280147247645 2.7511e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      985  
   data-arc span      8289 days (22.69 yr)  
   first obs. used      1991-09-07  
   last obs. used      2014-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 14:04:58  

Additional Information
 Earth MOID = 1.22625 AU 
 T_jup = 3.403 
[ 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 13.9 mag n/a MPO257005  

19180 (1991 RK16)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar (675)
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 RK16 = 1998 FM63 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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