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15913 Telemachus (1997 TZ27)
Classification: Jupiter Trojan          SPK-ID: 2015913
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06041676337359997 5.752e-08  
a 5.193415407305841 1.0066e-07 au
q 4.879646057541835 3.7117e-07 au
i 7.249149448487637 4.908e-06 deg
node 49.03677794250044 4.5926e-05 deg
peri 9.446956664432006 6.9842e-05 deg
M 292.4914463756049 5.4003e-05 deg
tp 2459811.151746025655
(2022-Aug-19.65174603)
0.00065809 TDB
period 4322.928175782711
11.84
0.00012568
3.441e-07
d
yr
n .08327688672153759 2.4211e-09 deg/d
Q 5.507184757069846 1.0674e-07 au
  Orbit Determination Parameters
   # obs. used (total)      903  
   data-arc span      10433 days (28.56 yr)  
   first obs. used      1992-04-24  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54952  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:01:17  

Additional Information
 Earth MOID = 3.89203 au 
 Jupiter MOID = .0531266 au 
 T_jup = 2.980 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457489.5 (2016-Apr-11.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05892152447369503 5.7269e-08  
q 4.890973751558755 3.6921e-07 au
tp 2455490.789161967296
(2010-Oct-21.28916197)
0.00063924 TDB
node 49.07286928461299 4.5878e-05 deg
peri 9.678468690702104 7.1157e-05 deg
i 7.25222898825165 4.9094e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      903  
   data-arc span      10433 days (28.56 yr)  
   first obs. used      1992-04-24  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54952  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:01:17  

Additional Information
 Jupiter MOID = .0531266 au 
 T_jup = 2.980 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.27970492020491E-15 -2.078166072937132E-14 -1.440585309585186E-11 -4.453255536669802E-15 -1.306077402077558E-12 -2.96333052049951E-15
q -2.078166072937132E-14 1.363126635794654E-13 8.801871901999955E-11 3.732416787627402E-14 8.246827249787905E-12 2.070963791779199E-14
tp -1.440585309585186E-11 8.801871901999955E-11 4.086236697604886E-7 -7.239478373502729E-12 3.481208561660235E-8 3.527990710763291E-11
node -4.453255536669802E-15 3.732416787627402E-14 -7.239478373502729E-12 2.104750220888675E-9 -2.087534628974349E-9 -9.991338675095894E-11
peri -1.306077402077558E-12 8.246827249787905E-12 3.481208561660235E-8 -2.087534628974349E-9 5.063325882104012E-9 1.022898917679329E-10
i -2.96333052049951E-15 2.070963791779199E-14 3.527990710763291E-11 -9.991338675095894E-11 1.022898917679329E-10 2.410196927079179E-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 12.0   n/a MPO263489  
diameter diameter 16.669 km 0.875 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.110   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

15913 Telemachus           Discovered 1997 Oct. 1 at the European Southern Observatory during the Uppsala-DLR Trojan Survey.
Telemachus, son of Odysseus, was born just before the Trojan war started.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1997 TZ27 = 1996 RY29 = 1998 WQ10 = 2000 AY7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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