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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03692773412463533 1.0314e-07  
a 2.420618105476291 2.9177e-08 au
q 2.331230163659984 2.6132e-07 au
i 6.133629149649422 9.8412e-06 deg
node 231.8312081872367 6.4505e-05 deg
peri 162.1922688092037 0.00012361 deg
M 252.1568438556309 0.00010107 deg
tp 2459412.576579152174
(2021-Jul-17.07657915)
0.00038433 TDB
period 1375.586303280948
3.77
2.4871e-05
6.809e-08
d
yr
n .2617065895039478 4.7317e-09 deg/d
Q 2.510006047292598 3.0254e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62676  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:00:57  

Additional Information
 Earth MOID = 1.33848 au 
 Jupiter MOID = 2.63568 au 
 T_jup = 3.505 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457385.5 (2015-Dec-29.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03769634086534985 1.0392e-07  
q 2.327848954274791 2.6358e-07 au
tp 2458043.109783708272
(2017-Oct-16.60978371)
0.0003781 TDB
node 231.8554848961184 6.4462e-05 deg
peri 163.6190854664844 0.00012063 deg
i 6.136645685477356 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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62676  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:00:57  

Additional Information
 Jupiter MOID = 2.63568 au 
 T_jup = 3.505 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.079895281799765E-14 -2.725565729559014E-14 1.044742484701215E-11 -7.378367691393152E-14 3.273348753248188E-12 -5.114445454535087E-15
q -2.725565729559014E-14 6.947480073872256E-14 -2.849806054969029E-11 1.903584030238002E-13 -8.911648366585021E-12 1.312357491611169E-14
tp 1.044742484701215E-11 -2.849806054969029E-11 1.429601872491214E-7 -1.401692655300977E-10 3.852219013940079E-8 2.14992516987385E-11
node -7.378367691393152E-14 1.903584030238002E-13 -1.401692655300977E-10 4.155375286563696E-9 -4.171462978012772E-9 9.864753607029418E-12
peri 3.273348753248188E-12 -8.911648366585021E-12 3.852219013940079E-8 -4.171462978012772E-9 1.455082352955102E-8 -3.883716878146288E-12
i -5.114445454535087E-15 1.312357491611169E-14 2.14992516987385E-11 9.864753607029418E-12 -3.883716878146288E-12 9.695027831203761E-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 MPO471896  

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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