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172946 (2005 JJ134)
Classification: Main-belt Asteroid          SPK-ID: 2172946
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06354486153011586 5.0475e-08  
a 2.717876597540843 2.5046e-08 au
q 2.545169505494168 1.373e-07 au
i 5.734357095653625 5.4701e-06 deg
node 70.20219844498645 6.3767e-05 deg
peri 339.4465477777318 8.201e-05 deg
M 303.8421169633023 5.3442e-05 deg
tp 2459255.800258945709
(2021-Feb-10.30025895)
0.00024363 TDB
period 1636.601813504896
4.48
2.2622e-05
6.194e-08
d
yr
n .2199679830667149 3.0406e-09 deg/d
Q 2.890583689587519 2.6637e-08 au
  Orbit Determination Parameters
   # obs. used (total)      242  
   data-arc span      5706 days (15.62 yr)  
   first obs. used      2002-09-05  
   last obs. used      2018-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53997  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:21:50  

Additional Information
 Earth MOID = 1.55664 au 
 Jupiter MOID = 2.35669 au 
 T_jup = 3.350 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456932.5 (2014-Oct-02.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06534067611639177 5.1103e-08  
q 2.540787523715369 1.3943e-07 au
tp 2457608.569484885740
(2016-Aug-08.06948489)
0.00023136 TDB
node 70.24295845569188 6.3734e-05 deg
peri 337.4323218901819 8.0828e-05 deg
i 5.737038068811541 5.4709e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      242  
   data-arc span      5706 days (15.62 yr)  
   first obs. used      2002-09-05  
   last obs. used      2018-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53997  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:21:50  

Additional Information
 Jupiter MOID = 2.35669 au 
 T_jup = 3.350 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.611517584033335E-15 -7.025544611814252E-15 -1.904533077510557E-12 3.22829368707181E-14 -4.376342726619172E-13 1.04364145048698E-15
q -7.025544611814252E-15 1.94409287325729E-14 5.892743070798055E-12 -8.858338296959109E-14 1.295032001241652E-12 -2.295499813867085E-15
tp -1.904533077510557E-12 5.892743070798055E-12 5.352904364766922E-8 -1.242274554674254E-10 1.154588024861838E-8 8.206312493068054E-12
node 3.22829368707181E-14 -8.858338296959109E-14 -1.242274554674254E-10 4.062043650783198E-9 -4.068060509549536E-9 -1.005244533115684E-11
peri -4.376342726619172E-13 1.295032001241652E-12 1.154588024861838E-8 -4.068060509549536E-9 6.533227302644991E-9 1.175809194101225E-11
i 1.04364145048698E-15 -2.295499813867085E-15 8.206312493068054E-12 -1.005244533115684E-11 1.175809194101225E-11 2.993065792495841E-11

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 16.1   n/a MPO436859  

172946 (2005 JJ134)          Discovered 2005-May-14 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Alternate Designations
 2005 JJ134 = 2005 JV50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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