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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04629935707524546 7.7932e-08  
a 5.244466864810885 1.0404e-07 au
q 5.001651420767713 4.3254e-07 au
i 15.76255065232087 8.4341e-06 deg
node 31.35240627980429 2.0311e-05 deg
peri 322.9913517353439 7.5761e-05 deg
M 221.1812438945558 7.6889e-05 deg
tp 2460692.093833879327
(2025-Jan-16.59383388)
0.00096102 TDB
period 4386.826371891653
12.01
0.00013054
3.574e-07
d
yr
n .08206388160394951 2.4419e-09 deg/d
Q 5.487282308854057 1.0885e-07 au
  Orbit Determination Parameters
   # obs. used (total)      835  
   data-arc span      16714 days (45.76 yr)  
   first obs. used      1974-07-24  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .536  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:36:13  

Additional Information
 Earth MOID = 4.01261 au 
 Jupiter MOID = .00846243 au 
 T_jup = 2.922 
[ 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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