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
JPL Small-Body Database Browser
Search: [ help ]  
243159 (2007 TD74)
Classification: Jupiter Trojan          SPK-ID: 2243159
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1051117223596382 8.0196e-08  
a 5.231230289439177 1.7677e-07 au
q 4.681366663656316 5.1557e-07 au
i 35.88461752675386 7.4332e-06 deg
node 139.496867326985 1.0487e-05 deg
peri 245.5345288031637 4.1914e-05 deg
M 327.111497858775 4.4588e-05 deg
tp 2459399.750785442763
(2021-Jul-04.25078544)
0.00054462 TDB
period 4370.228906813974
11.97
0.00022152
6.065e-07
d
yr
n .08237554775190269 4.1754e-09 deg/d
Q 5.781093915222038 1.9535e-07 au
  Orbit Determination Parameters
   # obs. used (total)      279  
   data-arc span      8850 days (24.23 yr)  
   first obs. used      1995-07-03  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57922  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:13:54  

Additional Information
 Earth MOID = 3.81153 au 
 Jupiter MOID = .0649649 au 
 T_jup = 2.610 
[ 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 12.6   n/a MPO418299  
diameter diameter 18.125 km 0.649 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.041   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

243159 (2007 TD74)          Discovered 2007-Oct-14 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-10 18:31 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin