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11543 (1992 UN2)
Classification: Main-belt Asteroid          SPK-ID: 2011543
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1997693194539981 4.1522e-08  
a 2.387418018956382 7.7289e-09 au
q 1.910485146057254 9.9909e-08 au
i 3.036887254037427 4.6181e-06 deg
node 50.17779040315719 7.1204e-05 deg
peri 358.8469573984935 7.1906e-05 deg
M 273.4103885893534 1.1019e-05 deg
tp 2459720.581632463921
(2022-May-21.08163246)
4.2165e-05 TDB
period 1347.383199743364
3.69
6.5429e-06
1.791e-08
d
yr
n .267184569370146 1.2975e-09 deg/d
Q 2.864350891855511 9.2729e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1651  
   data-arc span      11996 days (32.84 yr)  
   first obs. used      1988-08-16  
   last obs. used      2021-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49384  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 02:43:55  

Additional Information
 Earth MOID = .920224 au 
 Jupiter MOID = 2.5194 au 
 T_jup = 3.505 
[ 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 14.55   n/a MPCxxxxx  
diameter diameter 2.832 km 0.325 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 26.828 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.290   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11543 (1992 UN2)          Discovered 1992-Oct-25 by Kawasato, N. at Uenohara
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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