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JPL Small-Body Database Browser
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441558 (2008 TW157)
Classification: Main-belt Asteroid          SPK-ID: 2441558
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2358577956811843 8.1306e-08  
a 2.389173696649907 3.5755e-08 au
q 1.825668455058593 1.7733e-07 au
i 13.68270115868281 7.2526e-06 deg
node 257.0494803210385 3.1418e-05 deg
peri 60.43284024280254 4.2393e-05 deg
M 344.6267907407538 1.8191e-05 deg
tp 2458658.101269095849
(2019-Jun-23.60126910)
6.7751e-05 TDB
period 1348.869746376081
3.69
3.028e-05
8.29e-08
d
yr
n .2668901137171978 5.9912e-09 deg/d
Q 2.95267893824122 4.4188e-08 au
  Orbit Determination Parameters
   # obs. used (total)      131  
   data-arc span      4053 days (11.10 yr)  
   first obs. used      2008-09-23  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52007  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 15:57:33  

Additional Information
 Earth MOID = .852595 au 
 Jupiter MOID = 2.41672 au 
 T_jup = 3.458 
[ 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 17.2   n/a E2015L36  

441558 (2008 TW157)          Discovered 2008-Sep-23 by CSS at Catalina
Reference: Last Updated: 2015-09-02

Alternate Designations
 2008 TW157 = 2012 WC26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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