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109643 (2001 RW1)
Classification: Main-belt Asteroid          SPK-ID: 2109643
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0979421773460933 4.1975e-08  
a 3.074359825632582 2.8242e-08 au
q 2.773250330364771 1.3283e-07 au
i 6.776916796128037 6.8145e-06 deg
node 339.5909383107108 3.9879e-05 deg
peri 264.5082582804203 5.5458e-05 deg
M 266.2808693290473 4.2084e-05 deg
tp 2459513.073585707155
(2021-Oct-25.57358571)
0.00023271 TDB
period 1968.93088458585
5.39
2.7131e-05
7.428e-08
d
yr
n .1828403438730778 2.5195e-09 deg/d
Q 3.375469320900393 3.1008e-08 au
  Orbit Determination Parameters
   # obs. used (total)      730  
   data-arc span      7685 days (21.04 yr)  
   first obs. used      1999-01-19  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56013  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:29:53  

Additional Information
 Earth MOID = 1.77116 au 
 Jupiter MOID = 1.70995 au 
 T_jup = 3.212 
[ 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 14.6   n/a MPO280509  
diameter diameter 7.001 km 0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109643 (2001 RW1)          Discovered 2001-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 RW1 = 1999 BB5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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