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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1865035415136913 3.8918e-08  
a 2.280533689042298 5.3173e-09 au
q 1.855206079494626 8.7092e-08 au
i 3.270321647529482 2.9092e-06 deg
node 144.5606817167141 6.4591e-05 deg
peri 210.6857957112513 6.5004e-05 deg
M 41.42580685807507 8.0146e-06 deg
tp 2459055.748977424644
(2020-Jul-25.24897742)
2.7863e-05 TDB
period 1257.920414336371
3.44
4.3995e-06
1.205e-08
d
yr
n .2861866266713874 1.0009e-09 deg/d
Q 2.70586129858997 6.309e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2348  
   data-arc span      16093 days (44.06 yr)  
   first obs. used      1977-02-19  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46308  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:39:23  

Additional Information
 Earth MOID = .849551 au 
 Jupiter MOID = 2.73297 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 14.50   n/a MPCxxxxx  
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. 2020-October); 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1928-Oct-12 19:29 < 00:01 Hebe 0.0226277474935801 0.0226203329908871 0.0226351620028231 3.64316914103792 3.64316906562654 2425532.311881431 0.635553254491616 369.936639453209 21.897434198286 2.96037160879862 12122.5198340863 T 33 CATAB v2.0f-lin.ifort 2021-Apr-12 22:39:35 2021-Apr-12 22:39

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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