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JPL Small-Body Database Browser
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15747 (1991 RW23)
Classification: Main-belt Asteroid          SPK-ID: 2015747
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07970266456834232 3.25e-08  
a 2.792421331545257 1.1899e-08 au
q 2.569857910823621 9.3066e-08 au
i 4.007679917600902 3.7366e-06 deg
node 198.7233651017114 4.8694e-05 deg
peri 187.2340146860919 5.3617e-05 deg
M 21.12162251398687 2.2341e-05 deg
tp 2458900.501238051162
(2020-Feb-21.00123805)		 0.00010568 TDB
period 1704.393413798704
4.67		 1.0894e-05
2.983e-08		 d
yr
n .2112188401371736 1.3501e-09 deg/d
Q 3.014984752266892 1.2848e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1912  
   data-arc span      16366 days (44.81 yr)  
   first obs. used      1975-03-15  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51208  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 23:54:53  

Additional Information
 Earth MOID = 1.57374 au 
 Jupiter MOID = 2.37212 au 
 T_jup = 3.320 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6   n/a MPO502290  
diameter diameter 12.276 km 0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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