Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456842.5 (2014-Jul-04.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05369493221746983 7.0671e-08  
q 4.934225610245177 3.818e-07 au
tp 2456131.512139864370
(2012-Jul-23.01213986)
0.0008443 TDB
node 242.0604854331816 1.1927e-05 deg
peri 229.1142253235485 6.982e-05 deg
i 34.69861775769467 7.5864e-06 deg
  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
 Jupiter MOID = .0214416 au 
 T_jup = 2.642 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.994323728900533E-15 -2.560900302581199E-14 -5.299339011385551E-12 -8.862709460426655E-15 -4.475287875419038E-13 8.051620557766894E-15
q -2.560900302581199E-14 1.457675136875527E-13 7.754150360649821E-11 6.374771241189605E-14 6.566578445583767E-12 -1.828412656958463E-14
tp -5.299339011385551E-12 7.754150360649821E-11 7.128449508071328E-7 5.469555461593153E-11 5.820987284522668E-8 5.891988664747835E-11
node -8.862709460426655E-15 6.374771241189605E-14 5.469555461593153E-11 1.422548157228317E-10 -1.115923657966016E-10 2.804216068827896E-11
peri -4.475287875419038E-13 6.566578445583767E-12 5.820987284522668E-8 -1.115923657966016E-10 4.874767019746124E-9 -1.780935398620633E-11
i 8.051620557766894E-15 -1.828412656958463E-14 5.891988664747835E-11 2.804216068827896E-11 -1.780935398620633E-11 5.755328874974537E-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-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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-28 22:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin