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11439 (1974 XW)
Classification: Main-belt Asteroid          SPK-ID: 2011439
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1842517684132044 4.136e-08  
a 2.645569852887039 1.2317e-08 au
q 2.158118929031941 1.0883e-07 au
i 4.809991402123012 4.7096e-06 deg
node 79.58120894622608 6.0044e-05 deg
peri 26.70170400732879 6.1594e-05 deg
M 102.2109656153803 1.425e-05 deg
tp 2458154.256126387323
(2018-Feb-04.75612639)
6.1098e-05 TDB
period 1571.727588457399
4.30
1.0977e-05
3.005e-08
d
yr
n .2290473251496009 1.5996e-09 deg/d
Q 3.133020776742137 1.4587e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1372  
   data-arc span      16219 days (44.41 yr)  
   first obs. used      1974-12-14  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47048  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:55:17  

Additional Information
 Earth MOID = 1.1764 au 
 Jupiter MOID = 2.01429 au 
 T_jup = 3.364 
[ 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 13.7   n/a MPO473921  
diameter diameter 9.204 km 0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11439 (1974 XW)          Discovered 1974-Dec-14 by Purple Mountain Observatory at Nanking
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1974 XW = 1975 AE1 = 1978 VW14 = 1984 CU = 1988 AA3 = 1991 VW2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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