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134344 (1989 SG9)
Classification: Main-belt Asteroid          SPK-ID: 2134344
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2973040852931855 4.3861e-08  
a 2.612472392371592 1.7207e-08 au
q 1.835773677403856 1.2038e-07 au
i 4.663532460306416 4.6935e-06 deg
node 189.0029457300527 5.2419e-05 deg
peri 163.1500373976897 5.343e-05 deg
M 150.3253025882704 1.5324e-05 deg
tp 2458556.470772113971
(2019-Mar-13.97077211)
6.0179e-05 TDB
period 1542.325330779419
4.22
1.5238e-05
4.172e-08
d
yr
n .2334137894357689 2.3061e-09 deg/d
Q 3.389171107339328 2.2323e-08 au
  Orbit Determination Parameters
   # obs. used (total)      676  
   data-arc span      11528 days (31.56 yr)  
   first obs. used      1989-09-24  
   last obs. used      2021-04-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54515  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:19:41  

Additional Information
 Earth MOID = .829422 au 
 Jupiter MOID = 2.06322 au 
 T_jup = 3.340 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457321.5 (2015-Oct-26.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .299894040348538 4.4278e-08  
q 1.827072511539591 1.217e-07 au
tp 2457011.998620173135
(2014-Dec-20.49862017)
4.6588e-05 TDB
node 189.081718371332 5.2432e-05 deg
peri 162.6537492250866 5.3397e-05 deg
i 4.662118948782105 4.7014e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      676  
   data-arc span      11528 days (31.56 yr)  
   first obs. used      1989-09-24  
   last obs. used      2021-04-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54515  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:19:41  

Additional Information
 Jupiter MOID = 2.06322 au 
 T_jup = 3.340 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.960497281175792E-15 -5.367279700240827E-15 -6.185721137048683E-13 1.674331191114209E-14 -1.469510107533951E-13 -3.496418251590588E-16
q -5.367279700240827E-15 1.481073332119395E-14 2.04192909737665E-12 -5.020267543628886E-14 4.769137271980383E-13 1.585087061965745E-15
tp -6.185721137048683E-13 2.04192909737665E-12 2.170395691800904E-9 -2.76904005883967E-11 4.902849892068875E-10 2.46938168118071E-12
node 1.674331191114209E-14 -5.020267543628886E-14 -2.76904005883967E-11 2.749142890263334E-9 -2.745472969874224E-9 -1.465192834809791E-11
peri -1.469510107533951E-13 4.769137271980383E-13 4.902849892068875E-10 -2.745472969874224E-9 2.851197309156296E-9 1.508086867552088E-11
i -3.496418251590588E-16 1.585087061965745E-15 2.46938168118071E-12 -1.465192834809791E-11 1.508086867552088E-11 2.210327774805802E-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 15.7   n/a MPO449758  
diameter diameter 4.290 km 0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

134344 (1989 SG9)          Discovered 1989-Sep-24 by Debehogne, H. at La Silla
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

Alternate Designations
 1989 SG9 = 2001 KM32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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