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JPL Small-Body Database Browser
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15658 (1265 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2015658
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1269747142269539 2.5825e-08  
a 2.544757381750228 1.0808e-08 au
q 2.221637540425561 6.6308e-08 au
i 1.423744171617724 6.384e-06 deg
node 205.599949045718 0.00012666 deg
peri 287.0065371979805 0.0001302 deg
M 60.2688806495333 2.8522e-05 deg
tp 2458752.267508726819
(2019-Sep-25.76750873)
0.00011728 TDB
period 1482.750233540919
4.06
9.4459e-06
2.586e-08
d
yr
n .2427920710154218 1.5467e-09 deg/d
Q 2.867877223074894 1.218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1239  
   data-arc span      16577 days (45.39 yr)  
   first obs. used      1973-09-20  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57058  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:33:22  

Additional Information
 Earth MOID = 1.23651 au 
 Jupiter MOID = 2.16976 au 
 T_jup = 3.432 
[ 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 15.1   n/a MPO467863  
rotation period rot_per 277.442 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

15658 (1265 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1265 T-2 = 1993 ST 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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