Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2329141797690201 8.6598e-08  
a 2.784796693692359 2.1834e-08 AU
q 2.136178055957524 2.5151e-07 AU
i 7.67559849824384 8.7274e-06 deg
node 343.915767883913 3.6473e-05 deg
peri 16.085013164362 3.9002e-05 deg
M 359.357702295498 1.3858e-05 deg
tp 2457003.528464854227
(2014-Dec-12.02846485)
6.5359e-05 JED
period 1697.417474606752
4.65
1.9962e-05
5.465e-08
d
yr
n .2120868939937141 2.4942e-09 deg/d
Q 3.433415331427194 2.6919e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      807  
   data-arc span      13619 days (37.29 yr)  
   first obs. used      1977-09-09  
   last obs. used      2014-12-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53975  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:31:56  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Jan-29 20:26 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin