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12054 (1997 TT9)
Classification: Jupiter Trojan          SPK-ID: 2012054
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06380517862067268 5.3432e-08  
a 5.149558841366055 1.0484e-07 au
q 4.82099031967503 3.418e-07 au
i 10.08478581760729 6.8419e-06 deg
node 44.52909161607742 3.1787e-05 deg
peri 40.14543543432363 6.8291e-05 deg
M 291.5861024764102 6.2887e-05 deg
tp 2459811.639024888177
(2022-Aug-20.13902489)
0.00075553 TDB
period 4268.28553159182
11.69
0.00013035
3.569e-07
d
yr
n .0843429984558088 2.5758e-09 deg/d
Q 5.47812736305708 1.1153e-07 au
  Orbit Determination Parameters
   # obs. used (total)      852  
   data-arc span      12443 days (34.07 yr)  
   first obs. used      1986-09-30  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54917  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:55:30  

Additional Information
 Earth MOID = 3.84406 au 
 Jupiter MOID = .0586007 au 
 T_jup = 2.965 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.8   n/a MPO302140  
diameter diameter 22.617 km 0.457 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.072   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

12054 (1997 TT9)          Discovered 1997-Oct-05 by Sarounova, L. at Ondrejov
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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