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16550 (1991 RB13)
Classification: Main-belt Asteroid          SPK-ID: 2016550
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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2330249771988822 1.0547e-07  
a 2.785152430726997 3.1649e-08 AU
q 2.136142349061427 2.9046e-07 AU
i 7.675224590017518 9.7721e-06 deg
node 343.9172868084528 4.7461e-05 deg
peri 16.08604045278848 4.9689e-05 deg
M 316.9483137183977 2.2224e-05 deg
tp 2457003.529687655701
(2014-Dec-12.02968766)
0.00010754 JED
period 1697.742733651918
4.65
2.8938e-05
7.923e-08
d
yr
n .2120462617004547 3.6144e-09 deg/d
Q 3.434162512392566 3.9024e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      696  
   data-arc span      13048 days (35.72 yr)  
   first obs. used      1977-09-09  
   last obs. used      2013-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56904  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 18:27:06  

Additional Information
 Earth MOID = 1.13238 AU 
 T_jup = 3.278 
[ 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 MPO263495  

16550 (1991 RB13)          Discovered 1991-Sep-10 by Holt, H. E. at Palomar (675)
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 RB13 = 1977 RQ2 = 1998 BG37 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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