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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1961662848291768 2.7554e-08  
a 2.57676945334676 1.0326e-08 au
q 2.071294162822417 7.0335e-08 au
i 5.619928312161414 3.1161e-06 deg
node 73.54561902143703 4.9875e-05 deg
peri 6.480730037118355 5.1519e-05 deg
M 237.9393631593162 1.4685e-05 deg
tp 2459112.753462680193
(2020-Sep-20.25346268)
6.3234e-05 TDB
period 1510.816683723903
4.14
9.0819e-06
2.486e-08
d
yr
n .2382817213221805 1.4324e-09 deg/d
Q 3.082244743871103 1.2352e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1543  
   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      .54685  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 22:46:11  

Additional Information
 Earth MOID = 1.08697 au 
 Jupiter MOID = 2.17424 au 
 T_jup = 3.393 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456828.5 (2014-Jun-20.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1947102756820069 2.7277e-08  
q 2.076041732345303 6.9517e-08 au
tp 2456086.141107071987
(2012-Jun-07.64110707)
5.6263e-05 TDB
node 73.60292300553927 4.9954e-05 deg
peri 5.904766597562528 5.1648e-05 deg
i 5.615816000339327 3.1109e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1543  
   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      .54685  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 22:46:11  

Additional Information
 Jupiter MOID = 2.17424 au 
 T_jup = 3.393 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.440211111913772E-16 -1.882664817267165E-15 3.272082985686381E-13 3.236593086799737E-16 8.459180047174116E-14 -1.07997550123715E-16
q -1.882664817267165E-15 4.832619367213984E-15 -6.933333144997542E-13 9.23628122871565E-16 -1.753938231947477E-13 4.137418976630583E-16
tp 3.272082985686381E-13 -6.933333144997542E-13 3.165508705755819E-9 9.837687061487279E-12 7.725488568371573E-10 -5.056599745918056E-14
node 3.236593086799737E-16 9.23628122871565E-16 9.837687061487279E-12 2.495424696111914E-9 -2.480736913417637E-9 1.080211658610612E-11
peri 8.459180047174116E-14 -1.753938231947477E-13 7.725488568371573E-10 -2.480736913417637E-9 2.667514290672521E-9 -1.075347610478728E-11
i -1.07997550123715E-16 4.137418976630583E-16 -5.056599745918056E-14 1.080211658610612E-11 -1.075347610478728E-11 9.677973576171344E-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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