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14609 (1998 SW145)
Classification: Main-belt Asteroid          SPK-ID: 2014609
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1469758791623976 2.8561e-08  
a 2.386790690344251 7.697e-09 au
q 2.035990030254279 6.8662e-08 au
i 1.782167552232159 3.1256e-06 deg
node 112.4296924389154 0.0001252 deg
peri 40.21292131410416 0.00012597 deg
M 252.0091697475471 1.5351e-05 deg
tp 2459604.521344026222
(2022-Jan-25.02134403)
5.8594e-05 TDB
period 1346.852167998182
3.69
6.5151e-06
1.784e-08
d
yr
n .2672899138849558 1.2929e-09 deg/d
Q 2.737591350434223 8.8283e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1641  
   data-arc span      13160 days (36.03 yr)  
   first obs. used      1985-02-20  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51366  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:33:41  

Additional Information
 Earth MOID = 1.0467 au 
 Jupiter MOID = 2.25301 au 
 T_jup = 3.519 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.77   n/a E2021B10  
rotation period rot_per 5.540 h n/a LCDB (Rev. 2020-October); 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. (2015) Astron. J. 150, A75.]

14609 (1998 SW145)          Discovered 1998-Sep-20 by Elst, E. W. at La Silla
Reference: 20000418/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SW145 = 1985 DO3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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