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379906 (2012 JR27)
Classification: Main-belt Asteroid          SPK-ID: 2379906
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0364969739042328 1.0327e-07  
a 2.419748249511332 2.949e-08 au
q 2.331434760794104 2.6152e-07 au
i 6.132280428548671 9.8391e-06 deg
node 231.7847986124828 6.4543e-05 deg
peri 162.727315256645 0.00012438 deg
M 303.9781893693888 0.00010179 deg
tp 2459414.448055551641
(2021-Jul-18.94805555)
0.00038777 TDB
period 1374.844888653151
3.76
2.5133e-05
6.881e-08
d
yr
n .2618477204018769 4.7868e-09 deg/d
Q 2.50806173822856 3.0566e-08 au
  Orbit Determination Parameters
   # obs. used (total)      71  
   data-arc span      5937 days (16.25 yr)  
   first obs. used      2004-03-16  
   last obs. used      2020-06-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62625  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 10:44:51  

Additional Information
 Earth MOID = 1.33759 au 
 Jupiter MOID = 2.63417 au 
 T_jup = 3.506 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457385.5 (2015-Dec-29.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03769634146960454 1.0392e-07  
q 2.327848954055297 2.6358e-07 au
tp 2458043.109786530316
(2017-Oct-16.60978653)
0.0003781 TDB
node 231.855484921012 6.4462e-05 deg
peri 163.6190861342822 0.00012063 deg
i 6.136645686538906 9.8463e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      71  
   data-arc span      5937 days (16.25 yr)  
   first obs. used      2004-03-16  
   last obs. used      2020-06-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62625  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 10:44:51  

Additional Information
 Jupiter MOID = 2.63417 au 
 T_jup = 3.506 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.079895570468433E-14 -2.725566641168381E-14 1.044742003635412E-11 -7.378367350356289E-14 3.273347574491199E-12 -5.11445081376645E-15
q -2.725566641168381E-14 6.947482759815393E-14 -2.849804900197788E-11 1.903584201757232E-13 -8.911645602911309E-12 1.312359068581895E-14
tp 1.044742003635412E-11 -2.849804900197788E-11 1.429601755934283E-7 -1.401692242907128E-10 3.85221861603801E-8 2.149922039097713E-11
node -7.378367350356289E-14 1.903584201757232E-13 -1.401692242907128E-10 4.155375325922208E-9 -4.171463006453378E-9 9.864736538923579E-12
peri 3.273347574491199E-12 -8.911645602911309E-12 3.85221861603801E-8 -4.171463006453378E-9 1.455082224249512E-8 -3.88370872652423E-12
i -5.11445081376645E-15 1.312359068581895E-14 2.149922039097713E-11 9.864736538923579E-12 -3.88370872652423E-12 9.695027732550211E-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 17.94   n/a E2021B25  

379906 (2012 JR27)          Discovered 2010-Dec-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-11-20

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