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JPL Small-Body Database Browser
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146963 (2002 JD12)
Classification: Main-belt Asteroid          SPK-ID: 2146963
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1267262250915374 4.4132e-08  
a 2.177934593894378 7.7608e-09 au
q 1.901933164313873 9.5525e-08 au
i 5.413513132205092 4.9562e-06 deg
node 70.7060309374432 3.7318e-05 deg
peri 184.6729881274194 4.034e-05 deg
M 192.6767255698599 1.5562e-05 deg
tp 2459546.156748555445
(2021-Nov-27.65674856)
5.1666e-05 TDB
period 1173.993457568723
3.21
6.2751e-06
1.718e-08
d
yr
n .3066456611653873 1.639e-09 deg/d
Q 2.453936023474883 8.7443e-09 au
  Orbit Determination Parameters
   # obs. used (total)      918  
   data-arc span      7530 days (20.62 yr)  
   first obs. used      1999-06-15  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52548  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:40:50  

Additional Information
 Earth MOID = .887198 au 
 Jupiter MOID = 2.5804 au 
 T_jup = 3.667 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457316.5 (2015-Oct-21.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1266830637525334 4.4052e-08  
q 1.901888059414585 9.5318e-08 au
tp 2457198.791749033732
(2015-Jun-25.29174903)
4.9062e-05 TDB
node 70.71485139873842 3.7327e-05 deg
peri 184.790814946618 4.0373e-05 deg
i 5.413155403004708 4.9561e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      918  
   data-arc span      7530 days (20.62 yr)  
   first obs. used      1999-06-15  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52548  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:40:50  

Additional Information
 Jupiter MOID = 2.5804 au 
 T_jup = 3.667 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.940549931794367E-15 -4.18845110326842E-15 -1.12388722177112E-12 1.148479760729182E-14 -3.71430584545149E-13 -1.219433408323839E-15
q -4.18845110326842E-15 9.085560418587202E-15 2.479518246526983E-12 -2.518767263988627E-14 8.190371621737539E-13 2.719079656627978E-15
tp -1.12388722177112E-12 2.479518246526983E-12 2.40712243259645E-9 -1.228399109091214E-11 7.650193447135127E-10 1.483888338885863E-12
node 1.148479760729182E-14 -2.518767263988627E-14 -1.228399109091214E-11 1.393268875834948E-9 -1.390519849555625E-9 -8.657957970218257E-11
peri -3.71430584545149E-13 8.190371621737539E-13 7.650193447135127E-10 -1.390519849555625E-9 1.630014377321924E-9 8.665652853259464E-11
i -1.219433408323839E-15 2.719079656627978E-15 1.483888338885863E-12 -8.657957970218257E-11 8.665652853259464E-11 2.456330905202881E-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 15.9   n/a MPO502888  

146963 (2002 JD12)          Discovered 2002-May-03 by Yeung, W. K. Y. at Desert Eagle
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

Alternate Designations
 2002 JD12 = 1999 LC37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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