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27741 (1990 UJ4)
Classification: Main-belt Asteroid          SPK-ID: 2027741
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1219904045315546 3.9661e-08  
a 2.445612847401502 1.0805e-08 au
q 2.147271546819426 9.8518e-08 au
i 11.12151472830326 4.1532e-06 deg
node 63.44349536294667 2.14e-05 deg
peri 192.8426513223957 2.9014e-05 deg
M 293.0355813846758 2.264e-05 deg
tp 2458860.349322909111
(2020-Jan-11.84932291)
8.8722e-05 TDB
period 1396.947187500454
3.82
9.2581e-06
2.535e-08
d
yr
n .2577048031745173 1.7079e-09 deg/d
Q 2.743954147983578 1.2123e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1547  
   data-arc span      10898 days (29.84 yr)  
   first obs. used      1989-07-08  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50676  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:28:49  

Additional Information
 Earth MOID = 1.13385 au 
 Jupiter MOID = 2.29574 au 
 T_jup = 3.463 
[ 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 13.6   n/a MPO279804  
diameter diameter 6.697 km 0.422 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.207   0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27741 (1990 UJ4)          Discovered 1990-Oct-16 by Elst, E. W. at La Silla
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 UJ4 = 1989 NP1 = 1998 XL31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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