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16551 (1991 RT14)
Classification: Main-belt Asteroid          SPK-ID: 2016551
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1021214281337318 4.8639e-08  
a 2.77009722164733 2.3178e-08 AU
q 2.487210937303422 1.4324e-07 AU
i 15.292603616981 8.2718e-06 deg
node 169.7824673915396 1.7171e-05 deg
peri 260.5364486380242 4.6039e-05 deg
M 311.7355680810456 4.3353e-05 deg
tp 2457226.269693022316
(2015-Jul-22.76969302)
0.00020356 JED
period 1683.995568921525
4.61
2.1135e-05
5.786e-08
d
yr
n .2137772845985298 2.683e-09 deg/d
Q 3.052983505991238 2.5544e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1093  
   data-arc span      9396 days (25.72 yr)  
   first obs. used      1989-03-06  
   last obs. used      2014-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48738  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:46:59  

Additional Information
 Earth MOID = 1.55344 AU 
 T_jup = 3.279 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1 mag n/a MPO309283  
rotation period rot_per 16.193 h n/a LCDB (Rev. 2015-May); Warner et al., 2009 Incomplete or inconclusive result.
Published Reference List:
[Shevchenko, V.G.; Slyusarev, I.G.; Belskaya, I.N.; Checha, V.A.; et al. (2015) 46th L.P.S.C. #1832, p. 1509.]

16551 (1991 RT14)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RT14 = 1989 ER7 = 1998 FS22 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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