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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .232914176015139 8.6933e-08  
a 2.784796695917529 2.2262e-08 AU
q 2.136178068118217 2.5266e-07 AU
i 7.675596131499478 8.7673e-06 deg
node 343.9157936513898 3.7777e-05 deg
peri 16.08498862014374 4.016e-05 deg
M 359.3577007621381 1.4222e-05 deg
tp 2457003.528472087723
(2014-Dec-12.02847209)
6.7076e-05 JED
period 1697.417476641215
4.65
2.0354e-05
5.573e-08
d
yr
n .2120868937395144 2.5431e-09 deg/d
Q 3.433415323716842 2.7447e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      751  
   data-arc span      13534 days (37.05 yr)  
   first obs. used      1977-09-09  
   last obs. used      2014-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53586  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:32:48  

Additional Information
 Earth MOID = 1.13395 AU 
 T_jup = 3.279 
[ 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 MPO309283  

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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