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7641 (1986 TT6)
Classification: Jupiter Trojan          SPK-ID: 2007641
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05326375322270779 6.3563e-08  
a 5.214395952271368 1.1818e-07 au
q 4.936657653064099 3.613e-07 au
i 34.69130979856848 6.5882e-06 deg
node 242.0573426246963 1.1604e-05 deg
peri 227.7866894966216 6.9824e-05 deg
M 239.0877951940209 7.4349e-05 deg
tp 2460461.237153545920
(2024-May-30.73715355)
0.00092818 TDB
period 4349.150494115603
11.91
0.00014786
4.048e-07
d
yr
n .08277478567069126 2.8141e-09 deg/d
Q 5.492134251478637 1.2448e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1923  
   data-arc span      16299 days (44.62 yr)  
   first obs. used      1975-11-03  
   last obs. used      2020-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38528  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:42:45  

Additional Information
 Earth MOID = 4.00437 au 
 Jupiter MOID = .0241592 au 
 T_jup = 2.642 
[ 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 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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