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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2973040825732269 4.3921e-08  
a 2.61247239347653 1.7233e-08 au
q 1.835773685286108 1.2057e-07 au
i 4.663532803691411 4.7146e-06 deg
node 189.0029571532548 5.4631e-05 deg
peri 163.1500236393658 5.5627e-05 deg
M 150.325303740727 1.5351e-05 deg
tp 2458556.470766767988
(2019-Mar-13.97076677)
6.033e-05 TDB
period 1542.325331757902
4.22
1.5261e-05
4.178e-08
d
yr
n .2334137892876864 2.3096e-09 deg/d
Q 3.389171101666952 2.2357e-08 au
  Orbit Determination Parameters
   # obs. used (total)      657  
   data-arc span      11495 days (31.47 yr)  
   first obs. used      1989-09-24  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54698  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:07:58  

Additional Information
 Earth MOID = .829422 au 
 Jupiter MOID = 2.06322 au 
 T_jup = 3.340 
[ show covariance matrix ]

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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