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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .232382258979602 6.0024e-08  
a 2.785549350301446 1.6677e-08 au
q 2.138237099779233 1.7131e-07 au
i 7.674837601463536 7.1236e-06 deg
node 343.9193340892321 3.546e-05 deg
peri 16.18256795699476 3.793e-05 deg
M 126.5449064890434 1.31e-05 deg
tp 2457003.592712783574
(2014-Dec-12.09271278)
5.9734e-05 JED
period 1698.105671416484
4.65
1.525e-05
4.175e-08
d
yr
n .2120009408482242 1.9039e-09 deg/d
Q 3.432861600823658 2.0553e-08 au
  Orbit Determination Parameters
   # obs. used (total)      974  
   data-arc span      14100 days (38.60 yr)  
   first obs. used      1977-09-09  
   last obs. used      2016-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54294  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:25:23  

Additional Information
 Earth MOID = 1.13483 au 
 Jupiter MOID = 2.01983 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 14.1 mag n/a MPO365451  

16550 (1991 RB13)          Discovered 1991-Sep-10 by Holt, H. E. at Palomar
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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