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5402 Kejosmith (1989 UK2)
Classification: Main-belt Asteroid          SPK-ID: 2005402
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1369759545210636 1.5922e-08  
a 2.046282456326379 4.8851e-09 au
q 1.765990963651367 3.2977e-08 au
i 16.70276513578406 4.6952e-07 deg
node 237.0283005150405 1.772e-06 deg
peri 133.2097504563477 6.1864e-06 deg
M 318.6497623326925 5.0137e-06 deg
tp 2459519.306769591622
(2021-Oct-31.80676959)
1.5012e-05 TDB
period 1069.170083342414
2.93
3.8286e-06
1.048e-08
d
yr
n .336709757978428 1.2057e-09 deg/d
Q 2.326573949001391 5.5542e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2290  
   data-arc span      12732 days (34.86 yr)  
   first obs. used      1986-09-30  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40134  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 11:22:44  

Additional Information
 Earth MOID = .802777 au 
 Jupiter MOID = 3.16488 au 
 T_jup = 3.733 
[ 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 13.68   n/a E2021B10  
diameter diameter 4.191 km 0.233 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 2.69549 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Benishek, V.; Pravec, P.; Kucakova, H.; Hornoch, K.; et al. (2018) CBET 4561.]
geometric albedo albedo 0.400   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

5402 Kejosmith (1989 UK2)          Discovered 1989-Oct-27 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1989 UK2 = 1986 SX = 1986 WO5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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