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JPL Small-Body Database Browser
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109943 (2001 SY42)
Classification: Main-belt Asteroid          SPK-ID: 2109943
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1151782931299173 8.7795e-08  
a 2.516796458002051 1.1061e-08 au
q 2.226916137813953 2.2182e-07 au
i 3.652778907480849 7.2983e-06 deg
node 38.79733061613416 0.00010875 deg
peri 61.91860465182872 0.00018019 deg
M 62.98103851567323 0.00013961 deg
tp 2458345.360391487439
(2018-Aug-14.86039149)
0.00056572 TDB
period 1458.379557232365
3.99
9.6142e-06
2.632e-08
d
yr
n .2468493186253851 1.6273e-09 deg/d
Q 2.80667677819015 1.2335e-08 au
  Orbit Determination Parameters
   # obs. used (total)      831  
   data-arc span      7383 days (20.21 yr)  
   first obs. used      1999-02-10  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58411  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:03:22  

Additional Information
 Earth MOID = 1.24669 au 
 Jupiter MOID = 2.32539 au 
 T_jup = 3.446 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO366469  

109943 (2001 SY42)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 SY42 = 1999 CE99 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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