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103144 (1999 XY209)
Classification: Main-belt Asteroid          SPK-ID: 2103144
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05726283564759459 3.7806e-08  
a 2.73858791158731 1.8552e-08 au
q 2.581768602099597 9.9238e-08 au
i 12.55297832815376 4.7147e-06 deg
node 41.60868811898299 2.0067e-05 deg
peri 59.12631555096298 5.3198e-05 deg
M 219.5940928193176 5.2011e-05 deg
tp 2459846.111616714565
(2022-Sep-23.61161671)
0.00024235 TDB
period 1655.344754962137
4.53
1.6821e-05
4.605e-08
d
yr
n .2174773556510494 2.2099e-09 deg/d
Q 2.895407221075023 1.9615e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1020  
   data-arc span      7617 days (20.85 yr)  
   first obs. used      1999-10-15  
   last obs. used      2020-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49523  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:50:28  

Additional Information
 Earth MOID = 1.62047 au 
 Jupiter MOID = 2.24506 au 
 T_jup = 3.314 
[ 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 14.38   n/a E2021B55  
diameter diameter 3.153 km 0.448 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.332   0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

103144 (1999 XY209)          Discovered 1999-Dec-13 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 XY209 = 2001 FO74 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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