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376481 (2012 JS54)
Classification: Main-belt Asteroid          SPK-ID: 2376481
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1137203315435899 6.0306e-08  
a 2.281861563076634 2.8132e-08 au
q 2.022367509586986 1.4769e-07 au
i 6.055618275539239 6.0313e-06 deg
node 129.254742525414 5.7939e-05 deg
peri 249.6856434353106 6.485e-05 deg
M 337.5113743581041 3.4646e-05 deg
tp 2459079.148923111607
(2020-Aug-17.64892311)
0.0001219 TDB
period 1259.019238037868
3.45
2.3283e-05
6.375e-08
d
yr
n .2859368539602667 5.2878e-09 deg/d
Q 2.541355616566284 3.1331e-08 au
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      4679 days (12.81 yr)  
   first obs. used      2006-10-02  
   last obs. used      2019-07-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62513  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:55:40  

Additional Information
 Earth MOID = 1.03308 au 
 Jupiter MOID = 2.91225 au 
 T_jup = 3.589 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457494.5 (2016-Apr-16.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1149200520405664 6.0395e-08  
q 2.019528121109652 1.4798e-07 au
tp 2457819.920236245814
(2017-Mar-07.42023625)
0.00011054 TDB
node 129.3052435636115 5.8001e-05 deg
peri 249.6948484546894 6.4741e-05 deg
i 6.05286204073643 6.0285e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      4679 days (12.81 yr)  
   first obs. used      2006-10-02  
   last obs. used      2019-07-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62513  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:55:40  

Additional Information
 Jupiter MOID = 2.91225 au 
 T_jup = 3.589 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.647513187089982E-15 -8.824439276000546E-15 -1.291073540485512E-12 1.599174594600711E-14 -2.4609436808998E-13 1.907939443134066E-15
q -8.824439276000546E-15 2.189815461330882E-14 3.901752724054284E-12 -3.899522857755333E-14 7.590503933788617E-13 -3.046441438377165E-15
tp -1.291073540485512E-12 3.901752724054284E-12 1.221831915081189E-8 -1.39979847453262E-11 3.204860769258847E-9 3.74700464112126E-12
node 1.599174594600711E-14 -3.899522857755333E-14 -1.39979847453262E-11 3.364149775981483E-9 -3.348053362929147E-9 -7.289909765126013E-12
peri -2.4609436808998E-13 7.590503933788617E-13 3.204860769258847E-9 -3.348053362929147E-9 4.191378545387484E-9 8.125941486278193E-12
i 1.907939443134066E-15 -3.046441438377165E-15 3.74700464112126E-12 -7.289909765126013E-12 8.125941486278193E-12 3.6343143626686E-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 17.7   n/a MPO437548  

376481 (2012 JS54)          Discovered 2008-Mar-06 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-10-21

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