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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08064322777125764 5.2579e-08  
a 2.792900872655129 2.2376e-08 AU
q 2.567672331439057 1.5246e-07 AU
i 4.00688422302236 5.7859e-06 deg
node 198.7687962401318 7.5117e-05 deg
peri 185.0406744712049 8.3587e-05 deg
M 321.07863281167 3.6849e-05 deg
tp 2457184.817807604987
(2015-Jun-11.31780761)
0.00017523 JED
period 1704.832474582002
4.67
2.0488e-05
5.609e-08
d
yr
n .2111644430566506 2.5377e-09 deg/d
Q 3.018129413871201 2.4181e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1080  
   data-arc span      14404 days (39.44 yr)  
   first obs. used      1975-03-15  
   last obs. used      2014-08-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51545  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:05:32  

Additional Information
 Earth MOID = 1.57078 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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