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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1264327455977756 5.7575e-08  
a 5.229882591370187 8.3335e-08 au
q 4.568654176189244 3.1991e-07 au
i 10.11404380259203 6.2597e-06 deg
node 179.246676782621 2.1323e-05 deg
peri 171.9584423709636 2.8078e-05 deg
M 28.52850684975871 1.5455e-05 deg
tp 2459050.311308890979
(2020-Jul-19.81130889)
0.00019033 TDB
period 4368.540192291968
11.96
0.00010442
2.859e-07
d
yr
n .08240739106285408 1.9697e-09 deg/d
Q 5.891111006551129 9.3872e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1192  
   data-arc span      22032 days (60.32 yr)  
   first obs. used      1960-10-17  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50599  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 20:33:53  

Additional Information
 Earth MOID = 3.56274 au 
 Jupiter MOID = .358662 au 
 T_jup = 2.953 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457690.5 (2016-Oct-29.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1259629457534717 5.7294e-08  
q 4.58515933447459 3.1463e-07 au
tp 2459036.923598402070
(2020-Jul-06.42359840)
0.00019402 TDB
node 179.3353769321112 2.13e-05 deg
peri 170.2226288165894 2.83e-05 deg
i 10.11083673691366 6.2577e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1192  
   data-arc span      22032 days (60.32 yr)  
   first obs. used      1960-10-17  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50599  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 20:33:53  

Additional Information
 Jupiter MOID = .358662 au 
 T_jup = 2.953 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.282615572667716E-15 -1.752292846991471E-14 1.657047599791198E-12 -4.247316404915053E-15 2.250687938029092E-13 -1.282128696866462E-15
q -1.752292846991471E-14 9.899427219898004E-14 -1.403291452803253E-11 3.404925569623562E-14 -1.846347717497818E-12 8.844518720816298E-15
tp 1.657047599791198E-12 -1.403291452803253E-11 3.764355719234272E-8 -1.888381098135738E-11 3.602392191459181E-9 1.428052161561203E-12
node -4.247316404915053E-15 3.404925569623562E-14 -1.888381098135738E-11 4.536889453076862E-10 -4.485994098667158E-10 -2.15510667921494E-11
peri 2.250687938029092E-13 -1.846347717497818E-12 3.602392191459181E-9 -4.485994098667158E-10 8.008901503744098E-10 2.125751501641714E-11
i -1.282128696866462E-15 8.844518720816298E-15 1.428052161561203E-12 -2.15510667921494E-11 2.125751501641714E-11 3.915905475054461E-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 11.91   n/a MPCxxxxx  
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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