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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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07970266437116881 3.2499e-08  
a 2.792421330970569 1.1893e-08 au
q 2.56985791084533 9.3066e-08 au
i 4.007679917078847 3.7366e-06 deg
node 198.7233645253539 4.8664e-05 deg
peri 187.2340143267618 5.3586e-05 deg
M 21.12162367289734 2.2326e-05 deg
tp 2458900.501232595256
(2020-Feb-21.00123260)		 0.00010561 TDB
period 1704.393413272551
4.67		 1.0888e-05
2.981e-08		 d
yr
n .2112188402023776 1.3494e-09 deg/d
Q 3.014984751095809 1.2841e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1919  
   data-arc span      16389 days (44.87 yr)  
   first obs. used      1975-03-15  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51252  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:26:49  

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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