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110829 (2001 UT54)
Classification: Jupiter Trojan          SPK-ID: 2110829
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01999216525447513 5.6673e-08  
a 5.248418208613038 1.2224e-07 au
q 5.14349096446185 3.2019e-07 au
i 4.752385279953403 5.4238e-06 deg
node 86.11581735884577 6.6228e-05 deg
peri 294.3589585737151 0.00015195 deg
M 221.3684855652937 0.00014029 deg
tp 2460891.721706132948
(2025-Aug-04.22170613)
0.0017441 TDB
period 4391.785061935662
12.02
0.00015343
4.201e-07
d
yr
n .08197122466674893 2.8638e-09 deg/d
Q 5.353345452764227 1.2468e-07 au
  Orbit Determination Parameters
   # obs. used (total)      503  
   data-arc span      9453 days (25.88 yr)  
   first obs. used      1995-04-02  
   last obs. used      2021-02-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53805  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:22:19  

Additional Information
 Earth MOID = 4.14766 au 
 Jupiter MOID = .00446714 au 
 T_jup = 2.993 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457475.5 (2016-Mar-28.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02027621849137224 5.7552e-08  
q 5.145879824742898 3.2148e-07 au
tp 2456561.649361258811
(2013-Sep-26.14936126)
0.001601 TDB
node 86.11440590407678 6.622e-05 deg
peri 299.3377664665232 0.00014733 deg
i 4.751923116452769 5.4231e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      503  
   data-arc span      9453 days (25.88 yr)  
   first obs. used      1995-04-02  
   last obs. used      2021-02-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53805  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:22:19  

Additional Information
 Jupiter MOID = .00446714 au 
 T_jup = 2.993 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.312207970104319E-15 -1.713423949967028E-14 1.924118812131538E-11 3.146394064500196E-15 1.505722049276933E-12 4.684272055856414E-16
q -1.713423949967028E-14 1.033480037453556E-13 -4.423560808535857E-12 -4.146985506650471E-15 2.773192027857209E-13 -2.422418387225498E-16
tp 1.924118812131538E-11 -4.423560808535857E-12 2.563217255877865E-6 1.419344847710796E-10 2.107704300527402E-7 1.39315758854022E-11
node 3.146394064500196E-15 -4.146985506650471E-15 1.419344847710796E-10 4.385055990089512E-9 -4.358005063932525E-9 -1.271483173644583E-10
peri 1.505722049276933E-12 2.773192027857209E-13 2.107704300527402E-7 -4.358005063932525E-9 2.170581953204166E-8 1.278834405183106E-10
i 4.684272055856414E-16 -2.422418387225498E-16 1.39315758854022E-11 -1.271483173644583E-10 1.278834405183106E-10 2.940968676463653E-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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