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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1266878623091734 7.1626e-08  
a 5.230754175314809 9.6193e-08 au
q 4.568081110579393 4.1508e-07 au
i 10.11354702944099 6.3265e-06 deg
node 179.2467688452544 2.8831e-05 deg
peri 171.7230848277469 3.4809e-05 deg
M 356.074420845838 2.009e-05 deg
tp 2459048.148159565378
(2020-Jul-17.64815957)
0.00024394 TDB
period 4369.632293708734
11.96
0.00012054
3.3e-07
d
yr
n .08238679499836113 2.2726e-09 deg/d
Q 5.893427240050225 1.0838e-07 au
  Orbit Determination Parameters
   # obs. used (total)      865  
   data-arc span      21564 days (59.04 yr)  
   first obs. used      1960-10-17  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55374  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:43:58  

Additional Information
 Earth MOID = 3.56296 au 
 Jupiter MOID = .360377 au 
 T_jup = 2.953 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456996.5 (2014-Dec-05.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1241791080322496 7.1507e-08  
q 4.599613848525426 4.1323e-07 au
tp 2459043.137663534078
(2020-Jul-12.63766353)
0.00024757 TDB
node 179.3293524555229 2.8792e-05 deg
peri 170.3430381199979 3.5104e-05 deg
i 10.10723959437254 6.3241e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      865  
   data-arc span      21564 days (59.04 yr)  
   first obs. used      1960-10-17  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55374  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:43:58  

Additional Information
 Jupiter MOID = .360377 au 
 T_jup = 2.953 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.11324948328799E-15 -2.898348846463331E-14 -4.60734863872539E-12 -1.125057429281816E-14 -6.638294467005111E-14 -2.891089504435442E-15
q -2.898348846463331E-14 1.707626400385705E-13 2.446118205114522E-11 7.496982834680562E-14 -8.538812115068231E-14 1.985686180285884E-14
tp -4.60734863872539E-12 2.446118205114522E-11 6.128978106045743E-8 -1.407906094153787E-11 4.821949568312307E-9 1.032046207472254E-11
node -1.125057429281816E-14 7.496982834680562E-14 -1.407906094153787E-11 8.289620645486488E-10 -8.180828085543008E-10 -3.531702471301397E-11
peri -6.638294467005111E-14 -8.538812115068231E-14 4.821949568312307E-9 -8.180828085543008E-10 1.232320284761717E-9 3.528887592586461E-11
i -2.891089504435442E-15 1.985686180285884E-14 1.032046207472254E-11 -3.531702471301397E-11 3.528887592586461E-11 3.999384885137515E-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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