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JPL Small-Body Database Browser
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109942 (2001 SW42)
Classification: Main-belt Asteroid          SPK-ID: 2109942
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06889283929054334 3.6769e-08  
a 2.741266305891752 1.5742e-08 au
q 2.55241268682737 1.0537e-07 au
i 3.885411429028853 5.2466e-06 deg
node 161.9428852131394 5.8103e-05 deg
peri 270.4983960397699 7.0402e-05 deg
M 255.0481043499587 3.9058e-05 deg
tp 2459083.795838256377
(2020-Aug-22.29583826)
0.00018054 TDB
period 1657.773789550672
4.54
1.428e-05
3.91e-08
d
yr
n .217158699376937 1.8706e-09 deg/d
Q 2.930119924956133 1.6827e-08 au
  Orbit Determination Parameters
   # obs. used (total)      470  
   data-arc span      7522 days (20.59 yr)  
   first obs. used      1999-03-20  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53269  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 12:55:06  

Additional Information
 Earth MOID = 1.57049 au 
 Jupiter MOID = 2.24874 au 
 T_jup = 3.343 
[ 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 15.8   n/a MPO453561  

109942 (2001 SW42)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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