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312001 (2007 PK2)
Classification: Jupiter Trojan          SPK-ID: 2312001
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1205919906244215 6.4209e-08  
a 5.181967350392584 2.2077e-07 au
q 4.557063592257983 3.7835e-07 au
i 17.96137832170088 6.1823e-06 deg
node 136.0564856335072 2.129e-05 deg
peri 347.7138303120918 4.3527e-05 deg
M 223.6629698356379 4.5389e-05 deg
tp 2460632.243021855274
(2024-Nov-17.74302186)
0.00063143 TDB
period 4308.64224605539
11.80
0.00027534
7.538e-07
d
yr
n .08355300334567903 5.3394e-09 deg/d
Q 5.806871108527186 2.4739e-07 au
  Orbit Determination Parameters
   # obs. used (total)      232  
   data-arc span      6808 days (18.64 yr)  
   first obs. used      2001-01-02  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56477  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:01:35  

Additional Information
 Earth MOID = 3.57455 au 
 Jupiter MOID = .727257 au 
 T_jup = 2.889 
[ 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 13.1   n/a MPO494654  

312001 (2007 PK2)          Discovered 2007-Aug-05 by Yeung, W. K. Y. at 7300
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

Alternate Designations
 2007 PK2 = 2001 AL9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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