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7641 (1986 TT6)
Classification: Jupiter Trojan          SPK-ID: 2007641
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05326371334815645 5.4419e-08  
a 5.214395896951248 1.089e-07 au
q 4.936657808612233 3.3793e-07 au
i 34.69131201641176 4.6238e-06 deg
node 242.05734479154 1.0721e-05 deg
peri 227.7866805129377 6.9388e-05 deg
M 239.0878074767791 7.3718e-05 deg
tp 2460461.236981912554
(2024-May-30.73698191)
0.00091823 TDB
period 4349.150424904654
11.91
0.00013625
3.73e-07
d
yr
n .08277478698794195 2.5931e-09 deg/d
Q 5.492133985290262 1.147e-07 au
  Orbit Determination Parameters
   # obs. used (total)      2347  
   data-arc span      16434 days (44.99 yr)  
   first obs. used      1975-11-03  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .3559  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:26:40  

Additional Information
 Earth MOID = 4.00437 au 
 Jupiter MOID = .0241591 au 
 T_jup = 2.642 
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Orbital Elements at Epoch 2457790.5 (2017-Feb-06.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0527215548580165 5.4291e-08  
q 4.940867511973956 3.3732e-07 au
tp 2456132.179342008356
(2012-Jul-23.67934201)
0.00085404 TDB
node 242.0645004348426 1.0719e-05 deg
peri 229.328525158534 7.0389e-05 deg
i 34.69536230317161 4.6236e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2347  
   data-arc span      16434 days (44.99 yr)  
   first obs. used      1975-11-03  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .3559  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:26:40  

Additional Information
 Jupiter MOID = .0241591 au 
 T_jup = 2.642 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.9475221386523E-15 -1.756728266169074E-14 -8.383220662071863E-12 -6.873944101986732E-15 -6.387223017176916E-13 1.917001633355787E-15
q -1.756728266169074E-14 1.137859324810728E-13 8.913702333924486E-11 6.9363188604803E-14 7.267714969367144E-12 8.884429261660923E-15
tp -8.383220662071863E-12 8.913702333924486E-11 7.293769376980199E-7 2.05097549856865E-10 5.949776724264351E-8 1.85878046120234E-10
node -6.873944101986732E-15 6.9363188604803E-14 2.05097549856865E-10 1.149038380726673E-10 -7.661188780177957E-11 -3.003270692697403E-12
peri -6.387223017176916E-13 7.267714969367144E-12 5.949776724264351E-8 -7.661188780177957E-11 4.954545729639995E-9 1.814393856417418E-11
i 1.917001633355787E-15 8.884429261660923E-15 1.85878046120234E-10 -3.003270692697403E-12 1.814393856417418E-11 2.137748496893154E-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 9.5   n/a MPO452277  
diameter diameter 71.839 km 1.644 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 27.770 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Mottola, S.; Di Martino, M.; Erikson, A.; Gonano-Beurer, M.; et al. (2011) Astron. J. 141, A170.]
geometric albedo albedo 0.065   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

7641 (1986 TT6)          Discovered 1986-Oct-05 by Antal, M. at Piwnice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1986 TT6 = 1975 VT5 = 1975 XS4 = 1986 VP5 = 1991 HY = 1996 RN26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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