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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1395046985596959 5.8874e-08  
a 2.592620643935906 2.184e-08 AU
q 2.230937882523982 1.5755e-07 AU
i 2.846122102081577 5.9501e-06 deg
node 61.54505647528759 0.00010999 deg
peri 283.4901405760027 0.00011213 deg
M 211.0333944745905 2.1774e-05 deg
tp 2457631.447625116527
(2016-Aug-30.94762512)
9.2658e-05 JED
period 1524.778954590638
4.17
1.9267e-05
5.275e-08
d
yr
n .2360997959187142 2.9834e-09 deg/d
Q 2.954303405347829 2.4887e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1073  
   data-arc span      8661 days (23.71 yr)  
   first obs. used      1991-09-07  
   last obs. used      2015-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52057  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:33:41  

Additional Information
 Earth MOID = 1.22607 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 14.0 mag n/a MPO296291  

19180 (1991 RK16)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar
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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