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JPL Small-Body Database Browser
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91501 (1999 RW147)
Classification: Main-belt Asteroid          SPK-ID: 2091501
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2301355991116803 6.0902e-08  
a 2.783264347971904 1.6354e-08 au
q 2.14273613976521 1.6648e-07 au
i 7.920769848147182 6.0385e-06 deg
node 193.5953919665665 3.4945e-05 deg
peri 182.8902126294547 3.6583e-05 deg
M 144.0080984036242 1.028e-05 deg
tp 2458322.055186731257
(2018-Jul-22.55518673)
4.6778e-05 TDB
period 1696.016651037181
4.64
1.4949e-05
4.093e-08
d
yr
n .2122620669908198 1.8709e-09 deg/d
Q 3.423792556178598 2.0118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      503  
   data-arc span      15413 days (42.20 yr)  
   first obs. used      1976-10-22  
   last obs. used      2019-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54069  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:54:33  

Additional Information
 Earth MOID = 1.14427 au 
 Jupiter MOID = 2.03899 au 
 T_jup = 3.279 
[ 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 15.8   n/a MPO468901  
diameter diameter 4.601 km 0.241 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.033   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91501 (1999 RW147)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 RW147 = 1976 US17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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