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379732 (2011 GY54)
Classification: Main-belt Asteroid          SPK-ID: 2379732
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0913396585451681 4.5868e-08  
a 2.54156141286337 2.5623e-08 au
q 2.309416061240855 1.1857e-07 au
i 14.17628995207313 5.2664e-06 deg
node 112.5168139106476 2.456e-05 deg
peri 22.7887346296559 4.4782e-05 deg
M 150.5565847225286 4.1364e-05 deg
tp 2458381.562789964889
(2018-Sep-20.06278996)
0.00016543 TDB
period 1479.957824649689
4.05
2.238e-05
6.127e-08
d
yr
n .2432501751090193 3.6785e-09 deg/d
Q 2.773706764485885 2.7963e-08 au
  Orbit Determination Parameters
   # obs. used (total)      219  
   data-arc span      6801 days (18.62 yr)  
   first obs. used      2002-01-08  
   last obs. used      2020-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59524  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:02:12  

Additional Information
 Earth MOID = 1.32983 au 
 Jupiter MOID = 2.30246 au 
 T_jup = 3.397 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457737.5 (2016-Dec-15.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09170484135003448 4.5634e-08  
q 2.306851778198777 1.1818e-07 au
tp 2458378.423607470604
(2018-Sep-16.92360747)
0.00016521 TDB
node 112.5442694347877 2.4587e-05 deg
peri 21.9308877072096 4.4798e-05 deg
i 14.17103864701708 5.2645e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      219  
   data-arc span      6801 days (18.62 yr)  
   first obs. used      2002-01-08  
   last obs. used      2020-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59524  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:02:12  

Additional Information
 Jupiter MOID = 2.30246 au 
 T_jup = 3.397 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.082451518628268E-15 -5.287076588317123E-15 9.383474383411717E-13 -4.093562181023839E-15 2.115508785011329E-13 -3.560779460489123E-15
q -5.287076588317123E-15 1.396581393779517E-14 -5.12216943141854E-13 1.736321562890263E-14 -1.563560423584457E-13 1.068642337167522E-14
tp 9.383474383411717E-13 -5.12216943141854E-13 2.729592647454564E-8 1.430108063788333E-10 6.221483740688308E-9 -7.35940751498043E-12
node -4.093562181023839E-15 1.736321562890263E-14 1.430108063788333E-10 6.045194058227259E-10 -5.523479356270044E-10 5.88173002702043E-13
peri 2.115508785011329E-13 -1.563560423584457E-13 6.221483740688308E-9 -5.523479356270044E-10 2.006819689938744E-9 -2.395212459168857E-12
i -3.560779460489123E-15 1.068642337167522E-14 -7.35940751498043E-12 5.88173002702043E-13 -2.395212459168857E-12 2.771503706115944E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO437556  

379732 (2011 GY54)          Discovered 2002-Jan-08 by ADAS at Cima Ekar
Reference: Last Updated: 2013-11-20

Alternate Designations
 2011 GY54 = 2002 AF18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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