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JPL Small-Body Database Browser
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11283 (1989 UX4)
Classification: Main-belt Asteroid          SPK-ID: 2011283
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1872071716708472 4.3154e-08  
a 2.280462805430393 8.2643e-09 au
q 1.853543813525203 9.8323e-08 au
i 3.269350898541608 4.2883e-06 deg
node 144.5950617340818 6.8108e-05 deg
peri 210.7171538082855 6.8844e-05 deg
M 229.7137199584116 1.332e-05 deg
tp 2459055.728139977634
(2020-Jul-25.22813998)
4.8273e-05 TDB
period 1257.861766715848
3.44
6.8377e-06
1.872e-08
d
yr
n .2861999700809129 1.5558e-09 deg/d
Q 2.707381797335582 9.8114e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1617  
   data-arc span      15421 days (42.22 yr)  
   first obs. used      1977-02-19  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52027  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:54:33  

Additional Information
 Earth MOID = .848721 au 
 Jupiter MOID = 2.72744 au 
 T_jup = 3.580 
[ 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 14.5   n/a MPO340779  
diameter diameter 3.416 km 0.603 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 5.68 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.263   0.091 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

11283 (1989 UX4)          Discovered 1989-Oct-25 by Mrkos, A. at Klet
Reference: 19990831/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1989 UX4 = 1977 DS5 = 1982 SD8 = 1998 FB36 = 1999 NL6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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