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15747 (1991 RW23)
Classification: Main-belt Asteroid          SPK-ID: 2015747
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08075109752530214 7.1948e-08  
a 2.793117975383385 2.6713e-08 AU
q 2.567570633353527 1.9777e-07 AU
i 4.006610049806 7.3442e-06 deg
node 198.7760136351054 7.7837e-05 deg
peri 185.0181790514715 8.6494e-05 deg
M 278.8735869056595 3.7773e-05 deg
tp 2457184.730751622907
(2015-Jun-11.23075162)
0.00018063 JED
period 1705.031263041214
4.67
2.446e-05
6.697e-08
d
yr
n .2111398235348944 3.029e-09 deg/d
Q 3.018665317413243 2.887e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1036  
   data-arc span      14015 days (38.37 yr)  
   first obs. used      1975-03-15  
   last obs. used      2013-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55532  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-26 20:17:16  

Additional Information
 Earth MOID = 1.56945 AU 
 T_jup = 3.320 
[ 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 13.4 mag n/a MPO267768  

15747 (1991 RW23)          Discovered 1991-Sep-11 by Holt, H. E. at Palomar (675)
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RW23 = 1975 EA4 = 1991 PB21 = 1999 JP23 = 1999 KF16 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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