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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08033047426971919 4.5741e-08  
a 2.791988503510563 1.7765e-08 au
q 2.567706742867956 1.2827e-07 au
i 4.007561652740739 5.1022e-06 deg
node 198.7691368625735 6.7555e-05 deg
peri 185.0226546266861 7.5623e-05 deg
M 45.5822992316692 3.2535e-05 deg
tp 2457184.744143839716
(2015-Jun-11.24414384)
0.00015386 JED
period 1703.997155188218
4.67
1.6263e-05
4.453e-08
d
yr
n .2112679583436486 2.0164e-09 deg/d
Q 3.01627026415317 1.9192e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1264  
   data-arc span      14889 days (40.76 yr)  
   first obs. used      1975-03-15  
   last obs. used      2015-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53122  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:31:47  

Additional Information
 Earth MOID = 1.56931 au 
 Jupiter MOID = 2.38443 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 13.5 mag n/a MPO313546  

15747 (1991 RW23)          Discovered 1991-Sep-11 by Holt, H. E. at Palomar
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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