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13660 (1997 GE8)
Classification: Main-belt Asteroid          SPK-ID: 2013660
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1333505041189452 2.8283e-08  
a 2.43004406523373 8.8711e-09 au
q 2.105996464103561 6.8783e-08 au
i .4005626013003813 4.1875e-06 deg
node 254.4414441169011 0.00049484 deg
peri 228.9766274216864 0.00049516 deg
M 115.4256077586102 1.8631e-05 deg
tp 2458556.871621807152
(2019-Mar-14.37162181)
7.0577e-05 TDB
period 1383.628981910316
3.79
7.5766e-06
2.074e-08
d
yr
n .2601853565563245 1.4248e-09 deg/d
Q 2.754091666363899 1.0054e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1064  
   data-arc span      10571 days (28.94 yr)  
   first obs. used      1991-10-01  
   last obs. used      2020-09-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53801  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:44:57  

Additional Information
 Earth MOID = 1.12165 au 
 Jupiter MOID = 2.30563 au 
 T_jup = 3.496 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456663.5 (2014-Jan-06.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1337407830191125 2.8328e-08  
q 2.104710274159944 6.8969e-08 au
tp 2457174.535642734435
(2015-Jun-01.03564273)
6.755e-05 TDB
node 254.6479740107372 0.00049536 deg
peri 228.9792966568112 0.00049567 deg
i .4004654959032692 4.1854e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1064  
   data-arc span      10571 days (28.94 yr)  
   first obs. used      1991-10-01  
   last obs. used      2020-09-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53801  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:44:57  

Additional Information
 Jupiter MOID = 2.30563 au 
 T_jup = 3.496 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.024620077083343E-16 -1.941349583263448E-15 -2.801548897772276E-13 -8.732517286985775E-16 -6.615955826349958E-14 2.798156031813548E-17
q -1.941349583263448E-15 4.756741198059592E-15 8.370380590028719E-13 1.804065944774566E-15 1.946454682990261E-13 -3.576829118004196E-17
tp -2.801548897772276E-13 8.370380590028719E-13 4.562948764246539E-9 7.817505047024554E-13 1.206517777297189E-9 -8.406281696196675E-14
node -8.732517286985775E-16 1.804065944774566E-15 7.817505047024554E-13 2.453793007332529E-7 -2.453724870850952E-7 -5.173831770078988E-10
peri -6.615955826349958E-14 1.946454682990261E-13 1.206517777297189E-9 -2.453724870850952E-7 2.456933161232265E-7 5.173471768895571E-10
i 2.798156031813548E-17 -3.576829118004196E-17 -8.406281696196675E-14 -5.173831770078988E-10 5.173471768895571E-10 1.751744566277508E-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 15.6   n/a MPO425943  

13660 (1997 GE8)          Discovered 1997-Apr-02 by LINEAR at Socorro
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 GE8 = 1991 TP8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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