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382278 (2012 TL221)
Classification: Main-belt Asteroid          SPK-ID: 2382278
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04146898897361082 6.3965e-08  
a 3.084647092788821 6.1147e-08 au
q 2.956729896510481 2.0344e-07 au
i 11.71413501322504 1.2623e-05 deg
node 15.96830276162412 3.1612e-05 deg
peri 103.463465763473 0.00018591 deg
M 332.9471782840932 0.00017792 deg
tp 2458749.201970463701
(2019-Sep-22.70197046)
0.00097814 TDB
period 1978.821652288332
5.42
5.884e-05
1.611e-07
d
yr
n .1819264508166726 5.4095e-09 deg/d
Q 3.212564289067161 6.3683e-08 au
  Orbit Determination Parameters
   # obs. used (total)      132  
   data-arc span      5414 days (14.82 yr)  
   first obs. used      2004-02-13  
   last obs. used      2018-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59959  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:50:37  

Additional Information
 Earth MOID = 1.99883 au 
 Jupiter MOID = 1.82276 au 
 T_jup = 3.193 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456902.5 (2014-Sep-02.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04296146017303572 6.5499e-08  
q 2.953166092693559 2.0913e-07 au
tp 2456779.506441975255
(2014-May-02.00644198)
0.00093637 TDB
node 15.99777175018981 3.1628e-05 deg
peri 104.9876191086115 0.00017839 deg
i 11.71053218686822 1.2619e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      132  
   data-arc span      5414 days (14.82 yr)  
   first obs. used      2004-02-13  
   last obs. used      2018-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59959  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:50:37  

Additional Information
 Jupiter MOID = 1.82276 au 
 T_jup = 3.193 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.290117344620377E-15 -1.315104625581699E-14 2.915911504178956E-11 -2.963751893685332E-14 5.460794443565458E-12 -6.72637605497693E-15
q -1.315104625581699E-14 4.373533618520552E-14 -9.191596459374875E-11 9.665035009612756E-14 -1.718056827652605E-11 2.082466501549772E-14
tp 2.915911504178956E-11 -9.191596459374875E-11 8.767949957000479E-7 -9.318221104945306E-10 1.644227469160074E-7 1.400829782796183E-10
node -2.963751893685332E-14 9.665035009612756E-14 -9.318221104945306E-10 1.000357503194366E-9 -1.152387951806025E-9 -4.493345915943621E-11
peri 5.460794443565458E-12 -1.718056827652605E-11 1.644227469160074E-7 -1.152387951806025E-9 3.182355622203814E-8 7.070766627042884E-11
i -6.72637605497693E-15 2.082466501549772E-14 1.400829782796183E-10 -4.493345915943621E-11 7.070766627042884E-11 1.592416369654412E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO460499  

382278 (2012 TL221)          Discovered 2004-Feb-13 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-12-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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