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 ]  
46490 (4164 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2046490
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1487369915548737 3.4864e-08  
a 2.390793368866003 1.0057e-08 au
q 2.035193955751532 8.1839e-08 au
i 3.167224994390142 4.058e-06 deg
node 56.31034024236761 6.6505e-05 deg
peri 44.36054070090612 6.8365e-05 deg
M 150.5490611639249 1.3442e-05 deg
tp 2458435.839976906797
(2018-Nov-13.33997691)
5.0627e-05 TDB
period 1350.241620518741
3.70
8.5198e-06
2.333e-08
d
yr
n .2666189476974453 1.6823e-09 deg/d
Q 2.746392781980473 1.1553e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1144  
   data-arc span      16658 days (45.61 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50467  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:28:54  

Additional Information
 Earth MOID = 1.05348 au 
 Jupiter MOID = 2.39761 au 
 T_jup = 3.515 
[ 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 15.5   n/a MPO333223  

46490 (4164 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 4164 T-2 = 1999 TJ215 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-08 07:35 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin