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37685 (1995 OU2)
Classification: Jupiter Trojan          SPK-ID: 2037685
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .126687854130737 5.7997e-08  
a 5.230754225155255 8.4067e-08 au
q 4.56808119688505 3.2302e-07 au
i 10.11354729774219 6.2815e-06 deg
node 179.2467902353774 2.1895e-05 deg
peri 171.7231076903748 2.8532e-05 deg
M 356.0743808606986 1.5816e-05 deg
tp 2459048.148645580721
(2020-Jul-17.64864558)
0.00019158 TDB
period 4369.632356161801
11.96
0.00010534
2.884e-07
d
yr
n .08238679382084604 1.9861e-09 deg/d
Q 5.893427253425461 9.4717e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1130  
   data-arc span      21942 days (60.07 yr)  
   first obs. used      1960-10-17  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5097  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:39:32  

Additional Information
 Earth MOID = 3.56296 au 
 Jupiter MOID = .360377 au 
 T_jup = 2.953 
[ 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 11.9   n/a MPO381549  
diameter diameter 21.699 km 0.548 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.078   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

37685 (1995 OU2)          Discovered 1995-Jul-22 by Spacewatch at Kitt Peak
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 OU2 = 9616 P-L 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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