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 ]  
74920 (1999 TU144)
Classification: Main-belt Asteroid          SPK-ID: 2074920
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .145513415767427 3.8546e-08  
a 2.229164458231641 8.6174e-09 au
q 1.90479112360701 8.9393e-08 au
i 4.934427069026088 6.1006e-06 deg
node 10.18972550355672 4.3933e-05 deg
peri 78.52127000107545 4.9317e-05 deg
M 68.01938954423169 2.1415e-05 deg
tp 2458970.810141016518
(2020-May-01.31014102)
7.1999e-05 TDB
period 1215.658502496305
3.33
7.0492e-06
1.93e-08
d
yr
n .2961357973976694 1.7172e-09 deg/d
Q 2.553537792856273 9.8713e-09 au
  Orbit Determination Parameters
   # obs. used (total)      620  
   data-arc span      7867 days (21.54 yr)  
   first obs. used      1999-09-03  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5549  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:20:50  

Additional Information
 Earth MOID = .92809 au 
 Jupiter MOID = 2.63569 au 
 T_jup = 3.625 
[ 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 16.29   n/a MPCxxxxx  

74920 (1999 TU144)          Discovered 1999-Oct-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-10 00:08 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin