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 ]  
442647 (2012 TP120)
Classification: Main-belt Asteroid          SPK-ID: 2442647
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05116295467780334 1.078e-07  
a 2.660584222133885 5.184e-08 au
q 2.52446087216037 2.5404e-07 au
i 3.719221542656173 8.5203e-06 deg
node 286.1482491459105 0.00016543 deg
peri 225.3681231463368 0.00020454 deg
M 148.2789095275139 0.00011415 deg
tp 2458347.608782687783
(2018-Aug-17.10878269)
0.00050639 TDB
period 1585.126563051675
4.34
4.6328e-05
1.268e-07
d
yr
n .2271112025950348 6.6377e-09 deg/d
Q 2.796707572107399 5.4493e-08 au
  Orbit Determination Parameters
   # obs. used (total)      65  
   data-arc span      7166 days (19.62 yr)  
   first obs. used      1999-10-13  
   last obs. used      2019-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5703  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:51  

Additional Information
 Earth MOID = 1.53686 au 
 Jupiter MOID = 2.20258 au 
 T_jup = 3.381 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457165.5 (2015-May-23.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05079616632499632 1.08e-07  
q 2.523543624509314 2.5437e-07 au
tp 2456754.648720790600
(2014-Apr-07.14872079)
0.00052172 TDB
node 286.1940451103144 0.00016561 deg
peri 223.2390270853214 0.00020546 deg
i 3.717885875490555 8.5231e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      65  
   data-arc span      7166 days (19.62 yr)  
   first obs. used      1999-10-13  
   last obs. used      2019-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5703  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:51  

Additional Information
 Jupiter MOID = 2.20258 au 
 T_jup = 3.381 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.166303577152255E-14 -2.72423885192298E-14 -2.83202468397058E-12 1.371459035188643E-14 -8.589528738719312E-13 4.533160296710502E-16
q -2.72423885192298E-14 6.470224038597834E-14 1.519042829891179E-12 -2.507023185211364E-14 8.714052072056291E-13 -2.271258736377797E-17
tp -2.83202468397058E-12 1.519042829891179E-12 2.721884834954035E-7 -3.959194018587E-10 6.358489292166915E-8 -2.03829800993684E-11
node 1.371459035188643E-14 -2.507023185211364E-14 -3.959194018587E-10 2.742705559708917E-8 -2.746225942877853E-8 -4.81614176929994E-10
peri -8.589528738719312E-13 8.714052072056291E-13 6.358489292166915E-8 -2.746225942877853E-8 4.221365025512549E-8 4.758848151512726E-10
i 4.533160296710502E-16 -2.271258736377797E-17 -2.03829800993684E-11 -4.81614176929994E-10 4.758848151512726E-10 7.264405465964296E-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 17.3   n/a MPO477091  

442647 (2012 TP120)          Discovered 2012-Oct-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

Alternate Designations
 2012 TP120 = 2014 AJ41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-09 23:12 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin