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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05454908517977797 6.5266e-08  
a 2.793263807783683 2.9354e-08 AU
q 2.640893822403299 1.881e-07 AU
i 7.70067452922762 6.6489e-06 deg
node 103.0085414349792 5.1273e-05 deg
peri 251.0520665055296 8.1362e-05 deg
M 198.1556850090614 6.4379e-05 deg
tp 2457567.086746198027
(2016-Jun-27.58674620)
0.0003084 JED
period 1705.164797705381
4.67
2.6879e-05
7.359e-08
d
yr
n .2111232887779806 3.328e-09 deg/d
Q 2.945633793164066 3.0955e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      974  
   data-arc span      8867 days (24.28 yr)  
   first obs. used      1989-12-29  
   last obs. used      2014-04-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50848  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:04:53  

Additional Information
 Earth MOID = 1.64547 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 13.1 mag n/a PDS3 (MPC 39046)  

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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