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JPL Small-Body Database Browser
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65542 (1143 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2065542
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1556108961214875 4.0176e-08  
a 2.160035567168599 8.2419e-09 au
q 1.823910496907208 9.0248e-08 au
i 3.337153475085739 4.1499e-06 deg
node 304.3826682160537 5.4458e-05 deg
peri 11.97417936708428 5.5398e-05 deg
M 58.94940553486603 1.1168e-05 deg
tp 2458810.625471051897
(2019-Nov-23.12547105)
3.5628e-05 TDB
period 1159.55080125258
3.17
6.6366e-06
1.817e-08
d
yr
n .3104650521659918 1.7769e-09 deg/d
Q 2.496160637429991 9.5244e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1393  
   data-arc span      17687 days (48.42 yr)  
   first obs. used      1971-03-24  
   last obs. used      2019-08-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49628  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:33:37  

Additional Information
 Earth MOID = .810436 au 
 Jupiter MOID = 2.76883 au 
 T_jup = 3.680 
[ 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 MPO284609  
diameter diameter 2.363 km 0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 13.170 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.347   0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

65542 (1143 T-1)          Discovered 1971-Mar-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1143 T-1 = 1999 AY13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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