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13512 (1989 TH1)
Classification: Main-belt Asteroid          SPK-ID: 2013512
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2943593065212275 4.7241e-08  
a 2.714149862534699 1.666e-08 AU
q 1.9152145912043 1.3066e-07 AU
i 8.167010755761126 7.19e-06 deg
node 343.7209076029445 3.7158e-05 deg
peri 46.82946457680951 3.9067e-05 deg
M 175.3624743298793 1.4466e-05 deg
tp 2456004.920972063779
(2012-Mar-18.42097206)
6.1135e-05 JED
period 1633.236820770837
4.47
1.5037e-05
4.117e-08
d
yr
n .2204211878042837 2.0294e-09 deg/d
Q 3.513085133865098 2.1563e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      972  
   data-arc span      18910 days (51.77 yr)  
   first obs. used      1962-09-22  
   last obs. used      2014-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4872  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:30:40  

Additional Information
 Earth MOID = .929201 AU 
 T_jup = 3.284 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0 mag n/a PDS3 (MPC 38319)  

13512 (1989 TH1)          Discovered 1989-Oct-08 by Sugie, A. at Dynic (402)
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1989 TH1 = 1935 QR = 1962 SD 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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