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13981 (1992 OT9)
Classification: Main-belt Asteroid          SPK-ID: 2013981
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05451398328008501 6.0702e-08  
a 2.793550404467969 2.9673e-08 AU
q 2.641262844426727 1.7696e-07 AU
i 7.700665517391053 5.7634e-06 deg
node 103.0082207698405 4.7592e-05 deg
peri 250.9190148708309 7.3249e-05 deg
M 240.5198169762759 5.8077e-05 deg
tp 2457566.513217626680
(2016-Jun-27.01321763)
0.00027858 JED
period 1705.427236457657
4.67
2.7172e-05
7.439e-08
d
yr
n .2110908001843316 3.3633e-09 deg/d
Q 2.94583796450921 3.129e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1017  
   data-arc span      8947 days (24.50 yr)  
   first obs. used      1989-12-29  
   last obs. used      2014-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46666  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:22:00  

Additional Information
 Earth MOID = 1.64744 AU 
 T_jup = 3.313 
[ 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 13.2 mag n/a MPO299064  

13981 (1992 OT9)          Discovered 1992-Jul-28 by Debehogne, H., Lopez G., A. at La Silla (809)
Reference: 20000320/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1992 OT9 = 1989 YO6 = 1998 XS87 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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