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17442 (1989 UO5)
Classification: Jupiter Trojan          SPK-ID: 2017442
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04570595813449987 1.1185e-07  
a 5.246835154836813 1.1689e-07 au
q 5.007023526911219 5.6987e-07 au
i 15.75890804670845 8.5293e-06 deg
node 31.35572295375973 2.6184e-05 deg
peri 323.1969170276938 8.0034e-05 deg
M 188.1114677659131 7.7992e-05 deg
tp 2460696.488805794952
(2025-Jan-20.98880580)
0.00097839 TDB
period 4389.798203981336
12.02
0.0001467
4.016e-07
d
yr
n .08200832550195526 2.7405e-09 deg/d
Q 5.486646782762406 1.2223e-07 au
  Orbit Determination Parameters
   # obs. used (total)      760  
   data-arc span      16332 days (44.71 yr)  
   first obs. used      1974-07-24  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55349  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:19:46  

Additional Information
 Earth MOID = 4.01702 au 
 Jupiter MOID = .0051834 au 
 T_jup = 2.923 
[ 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 11.8   n/a MPO365462  
diameter diameter 23.374 km 0.570 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.081   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

17442 (1989 UO5)          Discovered 1989-Oct-30 by Bus, S. J. at Cerro Tololo
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1989 UO5 = 1977 UK5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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