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37685 (1995 OU2)
Classification: Jupiter Trojan          SPK-ID: 2037685
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1266878565938512 5.8495e-08  
a 5.23075422266663 8.4471e-08 au
q 4.568081181827758 3.2644e-07 au
i 10.11354753627285 6.2971e-06 deg
node 179.2467872958497 2.2559e-05 deg
peri 171.7231102400504 2.9075e-05 deg
M 356.0743814612143 1.5975e-05 deg
tp 2459048.148638257736
(2020-Jul-17.64863826)
0.00019354 TDB
period 4369.632353043405
11.96
0.00010585
2.898e-07
d
yr
n .08238679387964154 1.9957e-09 deg/d
Q 5.893427263505502 9.5172e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1110  
   data-arc span      21922 days (60.02 yr)  
   first obs. used      1960-10-17  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51055  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:29:42  

Additional Information
 Earth MOID = 3.56296 au 
 Jupiter MOID = .360377 au 
 T_jup = 2.953 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457551.5 (2016-Jun-12.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1255289733280492 5.8214e-08  
q 4.588851654272555 3.211e-07 au
tp 2459037.155211310012
(2020-Jul-06.65521131)
0.00019821 TDB
node 179.3353730829283 2.2528e-05 deg
peri 170.1540529796642 2.9358e-05 deg
i 10.11083243433011 6.2957e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1110  
   data-arc span      21922 days (60.02 yr)  
   first obs. used      1960-10-17  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51055  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:29:42  

Additional Information
 Jupiter MOID = .360377 au 
 T_jup = 2.953 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.388855021582112E-15 -1.818083752027808E-14 1.328952627816019E-12 -1.073271620966794E-14 2.167359515333058E-13 -8.685192803602763E-16
q -1.818083752027808E-14 1.031047871250666E-13 -1.213982628045909E-11 7.1774227230918E-14 -1.807241033510301E-12 6.633227600754855E-15
tp 1.328952627816019E-12 -1.213982628045909E-11 3.928727565660617E-8 -2.517793260820059E-11 3.710157165423597E-9 2.475462320470276E-12
node -1.073271620966794E-14 7.1774227230918E-14 -2.517793260820059E-11 5.075077341764683E-10 -5.024125682119551E-10 -2.654049290904973E-11
peri 2.167359515333058E-13 -1.807241033510301E-12 3.710157165423597E-9 -5.024125682119551E-10 8.618763841464639E-10 2.626171708205713E-11
i -8.685192803602763E-16 6.633227600754855E-15 2.475462320470276E-12 -2.654049290904973E-11 2.626171708205713E-11 3.963617652860607E-11

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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