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 ]  
117280 (2004 TW121)
Classification: Main-belt Asteroid          SPK-ID: 2117280
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1237590184127324 4.0775e-08  
a 2.742066100773732 1.799e-08 au
q 2.402710691719146 1.1321e-07 au
i .818554158600421 4.0703e-06 deg
node 242.448038513615 0.00034222 deg
peri 71.79379881760408 0.00034279 deg
M 212.1898615662696 2.2709e-05 deg
tp 2459681.452830578476
(2022-Apr-11.95283058)
0.00010744 TDB
period 1658.499353331975
4.54
1.6321e-05
4.468e-08
d
yr
n .2170636963329224 2.1361e-09 deg/d
Q 3.081421509828318 2.0216e-08 au
  Orbit Determination Parameters
   # obs. used (total)      457  
   data-arc span      8893 days (24.35 yr)  
   first obs. used      1995-09-27  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56917  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 05:45:11  

Additional Information
 Earth MOID = 1.38896 au 
 Jupiter MOID = 2.17158 au 
 T_jup = 3.338 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456987.5 (2014-Nov-26.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1242907859601681 4.0815e-08  
q 2.401317786850133 1.1329e-07 au
tp 2456356.751187363720
(2013-Mar-05.25118736)
9.6069e-05 TDB
node 243.0467006870004 0.00034288 deg
peri 69.92441908464045 0.00034343 deg
i .8175903194194324 4.0643e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      457  
   data-arc span      8893 days (24.35 yr)  
   first obs. used      1995-09-27  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56917  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 05:45:11  

Additional Information
 Jupiter MOID = 2.17158 au 
 T_jup = 3.338 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.665837019801177E-15 -4.579013513696853E-15 7.778479384341822E-13 -1.091735386809236E-16 1.703822223491557E-13 1.947984311473827E-16
q -4.579013513696853E-15 1.283474254011353E-14 -1.851560257194219E-12 2.464459376128772E-15 -3.941949758503095E-13 -4.532421150227144E-16
tp 7.778479384341822E-13 -1.851560257194219E-12 9.229246564684735E-9 -3.765928787163587E-12 1.90331474870271E-9 6.555172743301079E-13
node -1.091735386809236E-16 2.464459376128772E-15 -3.765928787163587E-12 1.175683456097956E-7 -1.175563692476741E-7 -1.685439745756552E-10
peri 1.703822223491557E-13 -3.941949758503095E-13 1.90331474870271E-9 -1.175563692476741E-7 1.179465932450543E-7 1.686613041531819E-10
i 1.947984311473827E-16 -4.532421150227144E-16 6.555172743301079E-13 -1.685439745756552E-10 1.686613041531819E-10 1.651815879018416E-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 16.0   n/a MPO417610  

117280 (2004 TW121)          Discovered 2004-Oct-07 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-24 18:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin