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13945 (1990 OH2)
Classification: Main-belt Asteroid          SPK-ID: 2013945
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1801995293404957 5.1382e-08  
a 3.172407299178448 3.2004e-08 au
q 2.600740996990138 1.6084e-07 au
i 4.768630934526422 5.9081e-06 deg
node 349.2653367366036 6.8114e-05 deg
peri 278.646965966228 7.0464e-05 deg
M 254.4945317790653 2.2636e-05 deg
tp 2458205.359221207623
(2018-Mar-27.85922121)
0.00013548 JED
period 2063.867620384986
5.65
3.1231e-05
8.551e-08
d
yr
n .174429792126322 2.6396e-09 deg/d
Q 3.744073601366757 3.7771e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1330  
   data-arc span      11155 days (30.54 yr)  
   first obs. used      1985-09-22  
   last obs. used      2016-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46483  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:17:58  

Additional Information
 Earth MOID = 1.59017 au 
 Jupiter MOID = 1.4086 au 
 T_jup = 3.171 
[ 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 12.7 mag n/a MPO319259  
rotation period rot_per 4.7643 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.]

13945 (1990 OH2)          Discovered 1990-Jul-29 by Holt, H. E. at Palomar
Reference: 20000320/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 OH2 = 1985 SN6 = 1996 RN6 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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