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 ]  
39456 (4120 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2039456
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05621081038276371 3.5782e-08  
a 2.716585616407253 1.5303e-08 au
q 2.563884137434842 9.7621e-08 au
i 4.118537372730012 4.3672e-06 deg
node 125.7738061606438 6.6597e-05 deg
peri 341.6354382638366 8.314e-05 deg
M 103.9452358083698 5.0787e-05 deg
tp 2458528.289532080758
(2019-Feb-13.78953208)
0.00022932 TDB
period 1635.435882451854
4.48
1.3819e-05
3.783e-08
d
yr
n .2201248021171494 1.86e-09 deg/d
Q 2.869287095379664 1.6163e-08 au
  Orbit Determination Parameters
   # obs. used (total)      905  
   data-arc span      15544 days (42.56 yr)  
   first obs. used      1977-10-07  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56229  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:43:22  

Additional Information
 Earth MOID = 1.58102 au 
 Jupiter MOID = 2.18799 au 
 T_jup = 3.355 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO431945  

39456 (4120 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 4120 T-3 = 2000 WL59 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-27 17:36 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin