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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06914698873647038 3.6767e-08  
a 2.741759989612619 1.5666e-08 au
q 2.55217554249277 1.0542e-07 au
i 3.88522325518763 5.2463e-06 deg
node 161.9394415365126 5.8104e-05 deg
peri 270.4217813561839 7.0315e-05 deg
M 342.0010668721266 3.9022e-05 deg
tp 2459083.406167837551
(2020-Aug-21.90616784)
0.00017987 TDB
period 1658.221640664804
4.54
1.4212e-05
3.891e-08
d
yr
n .2171000493369939 1.8607e-09 deg/d
Q 2.931344436732468 1.6749e-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 = 1.57047 au 
 Jupiter MOID = 2.24689 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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