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109865 (2001 RY144)
Classification: Main-belt Asteroid          SPK-ID: 2109865
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07054891863893842 3.987e-08  
a 2.670360215259866 1.5083e-08 au
q 2.481969189696839 1.0892e-07 au
i 21.04587662175076 6.0123e-06 deg
node 306.9453953868937 1.0696e-05 deg
peri 129.6200840878496 4.3319e-05 deg
M 36.31349288721263 4.0492e-05 deg
tp 2458839.724923832966
(2019-Dec-22.22492383)
0.0001792 TDB
period 1593.871115618119
4.36
1.3504e-05
3.697e-08
d
yr
n .2258651885164431 1.9136e-09 deg/d
Q 2.858751240822892 1.6147e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1099  
   data-arc span      7654 days (20.96 yr)  
   first obs. used      1999-02-19  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52077  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:34:24  

Additional Information
 Earth MOID = 1.53323 au 
 Jupiter MOID = 2.30874 au 
 T_jup = 3.282 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO366468  
diameter diameter 3.284 km 0.222 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.375   0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109865 (2001 RY144)          Discovered 2001-Sep-06 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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