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JPL Small-Body Database Browser
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136668 (1995 ST9)
Classification: Main-belt Asteroid          SPK-ID: 2136668
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .197595497798658 5.0499e-08  
a 2.336326375668516 1.1773e-08 au
q 1.874678802448161 1.2129e-07 au
i 1.419934992149455 6.3574e-06 deg
node 160.4033675331519 0.00025771 deg
peri 153.4741277354863 0.00025833 deg
M 246.2308687020019 2.0522e-05 deg
tp 2459012.712005205391
(2020-Jun-12.21200521)
7.6081e-05 TDB
period 1304.363672121596
3.57
9.8592e-06
2.699e-08
d
yr
n .2759966470198044 2.0861e-09 deg/d
Q 2.797973948888871 1.4099e-08 au
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      8599 days (23.54 yr)  
   first obs. used      1995-09-17  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59991  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:41:39  

Additional Information
 Earth MOID = .860053 au 
 Jupiter MOID = 2.4816 au 
 T_jup = 3.540 
[ 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 17.7   n/a MPO432828  

136668 (1995 ST9)          Discovered 1995-Sep-17 by Spacewatch at Kitt Peak
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

Alternate Designations
 1995 ST9 = 2002 PW38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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