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110829 (2001 UT54)
Classification: Jupiter Trojan          SPK-ID: 2110829
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02025796142902824 5.66e-08  
a 5.247924855929853 1.2165e-07 au
q 5.141612596615987 3.204e-07 au
i 4.752505137514607 5.4241e-06 deg
node 86.11538371443682 6.6175e-05 deg
peri 294.0675139058056 0.00015056 deg
M 237.7588463785665 0.00013908 deg
tp 2460887.558825494023
(2025-Jul-31.05882549)
0.0017252 TDB
period 4391.165833072851
12.02
0.00015269
4.18e-07
d
yr
n .08198278399977417 2.8506e-09 deg/d
Q 5.354237115243717 1.2411e-07 au
  Orbit Determination Parameters
   # obs. used (total)      561  
   data-arc span      9536 days (26.11 yr)  
   first obs. used      1995-04-02  
   last obs. used      2021-05-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50954  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 11:00:56  

Additional Information
 Earth MOID = 4.14636 au 
 Jupiter MOID = .00337742 au 
 T_jup = 2.993 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457476.5 (2016-Mar-29.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02027521215944364 5.7489e-08  
q 5.145882469924468 3.2132e-07 au
tp 2456561.639930337348
(2013-Sep-26.13993034)
0.001601 TDB
node 86.11441038543434 6.6167e-05 deg
peri 299.3370368789811 0.00014731 deg
i 4.751924299147233 5.423e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      561  
   data-arc span      9536 days (26.11 yr)  
   first obs. used      1995-04-02  
   last obs. used      2021-05-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50954  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 11:00:56  

Additional Information
 Jupiter MOID = .00337742 au 
 T_jup = 2.993 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.305010968077084E-15 -1.710734197516743E-14 1.920984565727131E-11 3.15940100254928E-15 1.503356877329859E-12 4.654848007932696E-16
q -1.710734197516743E-14 1.032472097557613E-13 -4.30482530224449E-12 -4.191627428777661E-15 2.862935297439889E-13 -2.315037587952371E-16
tp 1.920984565727131E-11 -4.30482530224449E-12 2.563336078245751E-6 1.42826909239639E-10 2.107804716125365E-7 1.390924080403206E-11
node 3.15940100254928E-15 -4.191627428777661E-15 1.42826909239639E-10 4.378103251933807E-9 -4.351002611265208E-9 -1.270834520647598E-10
peri 1.503356877329859E-12 2.862935297439889E-13 2.107804716125365E-7 -4.351002611265208E-9 2.169975542893791E-8 1.278170382661229E-10
i 4.654848007932696E-16 -2.315037587952371E-16 1.390924080403206E-11 -1.270834520647598E-10 1.278170382661229E-10 2.940908919099368E-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 12.89   n/a E2021B55  
diameter diameter 11.088 km 1.025 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.144   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

110829 (2001 UT54)          Discovered 2001-Oct-20 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2001 UT54 = 1996 HF19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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