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11447 (1978 UL4)
Classification: Main-belt Asteroid          SPK-ID: 2011447
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1968236051575097 4.1797e-08  
a 2.627574442952315 1.5023e-08 au
q 2.110405768270705 1.1197e-07 au
i 12.87339044358711 4.6518e-06 deg
node 216.5066542283457 1.7891e-05 deg
peri 172.4727204511153 2.0756e-05 deg
M 177.656457539299 1.3073e-05 deg
tp 2457832.768309645967
(2017-Mar-20.26830965)
5.3373e-05 TDB
period 1555.718336139365
4.26
1.3342e-05
3.653e-08
d
yr
n .2314043561981585 1.9845e-09 deg/d
Q 3.144743117633925 1.798e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1237  
   data-arc span      14825 days (40.59 yr)  
   first obs. used      1978-10-08  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49594  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:55:18  

Additional Information
 Earth MOID = 1.116 au 
 Jupiter MOID = 2.29848 au 
 T_jup = 3.339 
[ 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 13.8   n/a MPO445351  
diameter diameter 5.292 km 0.319 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.251   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11447 (1978 UL4)          Discovered 1978-Oct-27 by Olmstead, C. M. at Palomar
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1978 UL4 = 1978 TG8 = 1991 VO4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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