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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1909280599570479 3.941e-08  
a 2.628888302453297 1.6035e-08 au
q 2.126959759022112 1.0648e-07 au
i 11.73479275444046 5.688e-06 deg
node 355.6753596982859 2.3972e-05 deg
peri 137.829462545968 3.0009e-05 deg
M 279.5704384981272 2.0391e-05 deg
tp 2459548.332235548924
(2021-Nov-29.83223555)		 9.0305e-05 TDB
period 1556.885334936174
4.26		 1.4244e-05
3.9e-08		 d
yr
n .2312309018022567 2.1155e-09 deg/d
Q 3.130816845884481 1.9096e-08 au
   Orbit Determination Parameters
   # obs. used (total)      636  
   data-arc span      17271 days (47.29 yr)  
   first obs. used      1973-09-29  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53547  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:18:38  

Additional Information
 Earth MOID = 1.1551 au 
 Jupiter MOID = 1.93101 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 15.41   n/a E2021B55  

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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