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442647 (2012 TP120)
Classification: Main-belt Asteroid          SPK-ID: 2442647
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0523581287292338 9.8953e-08  
a 2.657639757938036 3.6733e-08 au
q 2.518490713375986 2.4186e-07 au
i 3.718408736004782 6.9837e-06 deg
node 286.1307808778527 0.00010761 deg
peri 225.6088346190952 0.00013138 deg
M 238.0662942666109 8.204e-05 deg
tp 2459932.498861385069
(2022-Dec-18.99886139)
0.00036727 TDB
period 1582.495905771414
4.33
3.2809e-05
8.983e-08
d
yr
n .2274887402154206 4.7163e-09 deg/d
Q 2.796788802500085 3.8656e-08 au
  Orbit Determination Parameters
   # obs. used (total)      89  
   data-arc span      7674 days (21.01 yr)  
   first obs. used      1999-10-13  
   last obs. used      2020-10-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5494  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:44:56  

Additional Information
 Earth MOID = 1.53162 au 
 Jupiter MOID = 2.20091 au 
 T_jup = 3.382 
[ 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 17.55   n/a E2021B25  

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 ]
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