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JPL Small-Body Database Browser
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12489 (1997 GR36)
Classification: Main-belt Asteroid          SPK-ID: 2012489
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .196166285273621 2.7543e-08  
a 2.57676945347577 1.0323e-08 au
q 2.07129416178089 7.0311e-08 au
i 5.619928211321541 3.1147e-06 deg
node 73.54561887016186 4.9875e-05 deg
peri 6.480730197809289 5.1519e-05 deg
M 237.9393630802886 1.4684e-05 deg
tp 2459112.753463050320
(2020-Sep-20.25346305)
6.3231e-05 TDB
period 1510.816683837365
4.14
9.0793e-06
2.486e-08
d
yr
n .2382817213042856 1.432e-09 deg/d
Q 3.082244745170651 1.2349e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1547  
   data-arc span      16450 days (45.04 yr)  
   first obs. used      1974-11-09  
   last obs. used      2019-11-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54705  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:25:50  

Additional Information
 Earth MOID = 1.08697 au 
 Jupiter MOID = 2.17424 au 
 T_jup = 3.393 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456830.5 (2014-Jun-22.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1947093302013758 2.7266e-08  
q 2.076045867814964 6.9494e-08 au
tp 2456086.141261855558
(2012-Jun-07.64126186)
5.6263e-05 TDB
node 73.6029193534991 4.9954e-05 deg
peri 5.904948480264068 5.1648e-05 deg
i 5.615810801951184 3.1096e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1547  
   data-arc span      16450 days (45.04 yr)  
   first obs. used      1974-11-09  
   last obs. used      2019-11-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54705  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:25:50  

Additional Information
 Jupiter MOID = 2.17424 au 
 T_jup = 3.393 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.434136705273337E-16 -1.881258591644987E-15 3.270699991397896E-13 3.259646966763779E-16 8.458565393600304E-14 -1.073487387134814E-16
q -1.881258591644987E-15 4.829364879146474E-15 -6.930222347033641E-13 9.184009744543381E-16 -1.753825071006114E-13 4.121677879051222E-16
tp 3.270699991397896E-13 -6.930222347033641E-13 3.165518518721925E-9 9.84189301645709E-12 7.725525640008332E-10 -4.837586711478442E-14
node 3.259646966763779E-16 9.184009744543381E-16 9.84189301645709E-12 2.495410675189888E-9 -2.480722070090361E-9 1.078970719108529E-11
peri 8.458565393600304E-14 -1.753825071006114E-13 7.725525640008332E-10 -2.480722070090361E-9 2.667500280705875E-9 -1.074060198351744E-11
i -1.073487387134814E-16 4.121677879051222E-16 -4.837586711478442E-14 1.078970719108529E-11 -1.074060198351744E-11 9.669474901543407E-12

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0   n/a MPO412273  

12489 (1997 GR36)          Discovered 1997-Apr-07 by LINEAR at Socorro
Reference: 19991123/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 GR36 = 1974 VW2 = 1995 UW48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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