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344238 (2001 SW138)
Classification: Main-belt Asteroid          SPK-ID: 2344238
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1556134003379127 6.4805e-08  
a 3.041988020472475 3.6344e-08 au
q 2.568613920819557 1.8631e-07 au
i 4.153248567469558 7.424e-06 deg
node 340.2806533409677 7.697e-05 deg
peri 42.68089387488551 7.989e-05 deg
M 174.2172591098312 2.3714e-05 deg
tp 2458062.671660634127
(2017-Nov-05.17166063)
0.00011995 TDB
period 1937.914784659026
5.31
3.473e-05
9.509e-08
d
yr
n .1857666822348649 3.3292e-09 deg/d
Q 3.515362120125393 4.2e-08 au
  Orbit Determination Parameters
   # obs. used (total)      217  
   data-arc span      6817 days (18.66 yr)  
   first obs. used      2001-09-16  
   last obs. used      2020-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59415  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 17:03:17  

Additional Information
 Earth MOID = 1.57367 au 
 Jupiter MOID = 1.96775 au 
 T_jup = 3.217 
[ 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 16.2   n/a MPO437458  

344238 (2001 SW138)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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