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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 ]

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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2971631349924339 4.413e-08  
a 2.612580884377279 1.7286e-08 au
q 1.836218158354421 1.212e-07 au
i 4.662908731191491 4.844e-06 deg
node 189.0121363925647 6.0458e-05 deg
peri 163.1342650051892 6.1428e-05 deg
M 103.6672175462687 1.5049e-05 deg
tp 2458556.337401137390
(2019-Mar-13.83740114)		 6.0831e-05 TDB
period 1542.421407415257
4.22		 1.5308e-05
4.191e-08		 d
yr
n .2333992502109245 2.3164e-09 deg/d
Q 3.388943610400136 2.2423e-08 au
   Orbit Determination Parameters
   # obs. used (total)      625  
   data-arc span      11087 days (30.35 yr)  
   first obs. used      1989-09-24  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54651  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:28:37  

Additional Information
 Earth MOID = .831581 au 
 Jupiter MOID = 2.06262 au 
 T_jup = 3.340 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456826.5 (2014-Jun-18.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3001137236239811 4.4531e-08  
q 1.826847078545115 1.2257e-07 au
tp 2457012.019721676234
(2014-Dec-20.51972168)		 4.7587e-05 TDB
node 189.0874049443753 6.0469e-05 deg
peri 162.6505529370633 6.139e-05 deg
i 4.661751071023497 4.8495e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      625  
   data-arc span      11087 days (30.35 yr)  
   first obs. used      1989-09-24  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54651  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:28:37  

Additional Information
 Jupiter MOID = 2.06262 au 
 T_jup = 3.340 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.982999591856152E-15 -5.436722947095245E-15 -5.722226327701535E-13 1.679505748739072E-14 -1.285831715004539E-13 -4.151472515355263E-16
q -5.436722947095245E-15 1.502270099815105E-14 1.907953188937641E-12 -5.06376288317296E-14 4.24003190614771E-13 1.764484580610108E-15
tp -5.722226327701535E-13 1.907953188937641E-12 2.264510530911612E-9 -3.037484888885196E-11 5.307197750572001E-10 2.34061890213401E-12
node 1.679505748739072E-14 -5.06376288317296E-14 -3.037484888885196E-11 3.656547104929046E-9 -3.650418204535035E-9 2.050158159825903E-11
peri -1.285831715004539E-13 4.24003190614771E-13 5.307197750572001E-10 -3.650418204535035E-9 3.768747864887269E-9 -1.999018115013546E-11
i -4.151472515355263E-16 1.764484580610108E-15 2.34061890213401E-12 2.050158159825903E-11 -1.999018115013546E-11 2.351804086640916E-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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