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JPL Small-Body Database Browser
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48252 (2001 TL212)
Classification: Jupiter Trojan          SPK-ID: 2048252
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 .02000774665040303 8.6671e-08  
a 5.139328782171474 1.3897e-07 au
q 5.036502393944663 4.3428e-07 au
i 15.5626396754087 8.6181e-06 deg
node 225.9609478859815 2.1937e-05 deg
peri 154.5363403293383 0.00018908 deg
M 204.3907022676293 0.00018897 deg
tp 2460839.963064662735
(2025-Jun-13.46306466)
0.0022715 TDB
period 4255.572854120198
11.65
0.00017261
4.726e-07
d
yr
n .08459495638794011 3.4313e-09 deg/d
Q 5.242155170398285 1.4175e-07 au
  Orbit Determination Parameters
   # obs. used (total)      490  
   data-arc span      13620 days (37.29 yr)  
   first obs. used      1982-01-23  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60441  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:37:23  

Additional Information
 Earth MOID = 4.04687 au 
 Jupiter MOID = .0479545 au 
 T_jup = 2.927 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456677.5 (2014-Jan-20.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02142595811547345 8.6596e-08  
q 5.037866696400189 4.3077e-07 au
tp 2456642.087642838883
(2013-Dec-15.58764284)
0.0020326 TDB
node 225.9508313589148 2.194e-05 deg
peri 159.3614585878863 0.00017578 deg
i 15.55498357256198 8.614e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      490  
   data-arc span      13620 days (37.29 yr)  
   first obs. used      1982-01-23  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60441  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:37:23  

Additional Information
 Jupiter MOID = .0479545 au 
 T_jup = 2.927 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.498809274537781E-15 -3.545559013982442E-14 5.442049718255675E-12 4.26575293766115E-15 2.263282345457318E-13 -2.041597854796263E-15
q -3.545559013982442E-14 1.85559443880226E-13 8.747148998001148E-11 -8.043885034069452E-15 8.661590419253169E-12 1.773612665555715E-14
tp 5.442049718255675E-12 8.747148998001148E-11 4.131472157490933E-6 1.681097707252364E-10 3.545128609115475E-7 -8.309639610575729E-13
node 4.26575293766115E-15 -8.043885034069452E-15 1.681097707252364E-10 4.813453789046414E-10 -4.491106424748947E-10 -2.009279565696515E-11
peri 2.263282345457318E-13 8.661590419253169E-12 3.545128609115475E-7 -4.491106424748947E-10 3.089777636285609E-8 1.938295697908832E-11
i -2.041597854796263E-15 1.773612665555715E-14 -8.309639610575729E-13 -2.009279565696515E-11 1.938295697908832E-11 7.420113245412497E-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 12.3   n/a MPO439421  

48252 (2001 TL212)          Discovered 2001-Oct-13 by NEAT at Palomar
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 TL212 = 1997 LZ11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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