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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05453860631459287 5.9189e-08  
a 2.794605969807761 2.8036e-08 au
q 2.642192055016005 1.749e-07 au
i 7.699475055424683 5.7345e-06 deg
node 103.0040952039045 4.5176e-05 deg
peri 250.471890838477 7.1346e-05 deg
M 7.565981847071855 5.7857e-05 deg
tp 2457564.637373369358
(2016-Jun-25.13737337)
0.00027404 JED
period 1706.393941723179
4.67
2.5678e-05
7.03e-08
d
yr
n .2109712131516706 3.1748e-09 deg/d
Q 2.947019884599518 2.9565e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1031  
   data-arc span      9298 days (25.46 yr)  
   first obs. used      1989-12-29  
   last obs. used      2015-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46441  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:13:12  

Additional Information
 Earth MOID = 1.6469 au 
 Jupiter MOID = 2.31372 au 
 T_jup = 3.312 
[ 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  
rotation period rot_per 5.9096 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) Astron. J. 150, A75.]

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

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