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JPL Small-Body Database Browser
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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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0529668272323141 7.0728e-08  
a 5.213992214126914 1.2612e-07 au
q 4.937823589330623 3.8032e-07 au
i 34.69132952123498 7.5835e-06 deg
node 242.0579533243412 1.1934e-05 deg
peri 228.2734782377886 7.0473e-05 deg
M 205.4247551450042 7.4515e-05 deg
tp 2460467.702570996929
(2024-Jun-06.20257100)
0.00093999 TDB
period 4348.645387490515
11.91
0.00015779
4.32e-07
d
yr
n .08278440018024698 3.0038e-09 deg/d
Q 5.490160838923204 1.328e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1501  
   data-arc span      16098 days (44.07 yr)  
   first obs. used      1975-11-03  
   last obs. used      2019-11-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43155  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 22:29:00  

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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