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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1397515348579115 5.8719e-08  
a 2.593212876872486 2.1709e-08 au
q 2.230807397116256 1.5729e-07 au
i 2.845949041722918 5.9496e-06 deg
node 61.54111030694736 0.0001096 deg
peri 283.3883504988369 0.00011174 deg
M 352.8019179060224 2.1843e-05 deg
tp 2457630.997902787898
(2016-Aug-30.49790279)
9.2584e-05 JED
period 1525.301442842579
4.18
1.9154e-05
5.244e-08
d
yr
n .2360189205152114 2.9637e-09 deg/d
Q 2.955618356628717 2.4743e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1100  
   data-arc span      8741 days (23.93 yr)  
   first obs. used      1991-09-07  
   last obs. used      2015-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51876  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:52:09  

Additional Information
 Earth MOID = 1.22465 au 
 Jupiter MOID = 2.43103 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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