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379909 (2012 JF37)
Classification: Main-belt Asteroid          SPK-ID: 2379909
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1311743174197627 5.0307e-08  
a 2.582090140018586 2.3396e-08 au
q 2.243386228385349 1.3794e-07 au
i 4.059086095462021 4.9643e-06 deg
node 109.5682718981455 0.00010334 deg
peri 184.9656758919006 0.00010743 deg
M 296.5951843947785 3.246e-05 deg
tp 2459267.416406252851
(2021-Feb-21.91640625)
0.00013797 TDB
period 1515.498552181154
4.15
2.0597e-05
5.639e-08
d
yr
n .2375455915031238 3.2285e-09 deg/d
Q 2.920794051651824 2.6465e-08 au
  Orbit Determination Parameters
   # obs. used (total)      163  
   data-arc span      5284 days (14.47 yr)  
   first obs. used      2005-12-01  
   last obs. used      2020-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63264  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:00:56  

Additional Information
 Earth MOID = 1.22736 au 
 Jupiter MOID = 2.25293 au 
 T_jup = 3.408 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457659.5 (2016-Sep-28.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1303284303368335 5.0361e-08  
q 2.245955118009395 1.3804e-07 au
tp 2457750.689748617080
(2016-Dec-28.18974862)
0.00013243 TDB
node 109.576568347728 0.00010335 deg
peri 184.7996406075225 0.00010749 deg
i 4.058571068975371 4.9638e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      163  
   data-arc span      5284 days (14.47 yr)  
   first obs. used      2005-12-01  
   last obs. used      2020-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63264  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:00:56  

Additional Information
 Jupiter MOID = 2.25293 au 
 T_jup = 3.408 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.53618853832652E-15 -6.88372612573461E-15 -2.555372461159055E-12 -4.135135393954148E-14 -4.472475551408168E-13 -2.326174538703317E-15
q -6.88372612573461E-15 1.905480336994454E-14 7.237606625633577E-12 1.122041351856839E-13 1.277048096332796E-12 7.195376833791353E-15
tp -2.555372461159055E-12 7.237606625633577E-12 1.753655737032971E-8 1.198326158957604E-10 3.976497256843693E-9 1.14086153153848E-11
node -4.135135393954148E-14 1.122041351856839E-13 1.198326158957604E-10 1.068163534824945E-8 -1.062839940146315E-8 -1.6068420993129E-10
peri -4.472475551408168E-13 1.277048096332796E-12 3.976497256843693E-9 -1.062839940146315E-8 1.155334058034592E-8 1.629077038416265E-10
i -2.326174538703317E-15 7.195376833791353E-15 1.14086153153848E-11 -1.6068420993129E-10 1.629077038416265E-10 2.463914633796972E-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 17.2   n/a MPO423399  

379909 (2012 JF37)          Discovered 2005-Dec-01 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Alternate Designations
 2012 JF37 = 2009 WF21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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