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118008 (1257 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2118008
[ 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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .190808979379598 4.5063e-08  
a 2.628809965761541 1.8038e-08 au
q 2.127209419211666 1.1797e-07 au
i 11.73464321524637 5.8469e-06 deg
node 355.6753452561854 2.8571e-05 deg
peri 137.8483487030749 3.363e-05 deg
M 233.2874749518019 2.0208e-05 deg
tp 2459548.466817389605
(2021-Nov-29.96681739)		 9.0887e-05 TDB
period 1556.815746393043
4.26		 1.6023e-05
4.387e-08		 d
yr
n .2312412376571069 2.38e-09 deg/d
Q 3.130410512311417 2.1479e-08 au
   Orbit Determination Parameters
   # obs. used (total)      505  
   data-arc span      17106 days (46.83 yr)  
   first obs. used      1973-09-29  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56797  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:01:46  

Additional Information
 Earth MOID = 1.15545 au 
 Jupiter MOID = 1.93197 au 
 T_jup = 3.346 
[ 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 15.3   n/a MPO432683  

118008 (1257 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1257 T-2 = 2003 SA195 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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