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23710 (1997 UJ)
Classification: Jupiter Trojan          SPK-ID: 2023710
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06223638464989918 5.5675e-08  
a 5.178798599340936 9.6525e-08 au
q 4.856488897687994 3.4669e-07 au
i 11.070342937622 5.9558e-06 deg
node 224.1154849000815 2.2719e-05 deg
peri 205.4493771192369 4.9123e-05 deg
M 333.6034098615046 4.2794e-05 deg
tp 2459516.136550212680
(2021-Oct-28.63655021)
0.00051159 TDB
period 4304.690775603411
11.79
0.00012035
3.295e-07
d
yr
n .08362970042825828 2.3381e-09 deg/d
Q 5.501108300993877 1.0253e-07 au
  Orbit Determination Parameters
   # obs. used (total)      870  
   data-arc span      8515 days (23.31 yr)  
   first obs. used      1997-10-20  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49204  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:28:35  

Additional Information
 Earth MOID = 3.87331 au 
 Jupiter MOID = .0669797 au 
 T_jup = 2.959 
[ 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 12.29   n/a E2021B10  
diameter diameter 17.104 km 1.175 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.073   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

23710 (1997 UJ)          Discovered 1997-Oct-20 by Sarounova, L. at Ondrejov
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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