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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05296682708510448 7.0894e-08  
a 5.213992213934073 1.2624e-07 au
q 4.937823589915546 3.8085e-07 au
i 34.69132944613243 7.6164e-06 deg
node 242.0579532937503 1.1938e-05 deg
peri 228.2734783149407 7.0495e-05 deg
M 205.4247551102721 7.4525e-05 deg
tp 2460467.702571312889
(2024-Jun-06.20257131)
0.00094007 TDB
period 4348.645387249262
11.91
0.00015793
4.324e-07
d
yr
n .08278440018483968 3.0066e-09 deg/d
Q 5.4901608379526 1.3293e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1493  
   data-arc span      16090 days (44.05 yr)  
   first obs. used      1975-11-03  
   last obs. used      2019-11-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43259  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 21:46:43  

Additional Information
 Earth MOID = 4.0063 au 
 Jupiter MOID = .0214416 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-January); 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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