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JPL Small-Body Database Browser
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39407 (1187 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2039407
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1522828568128357 4.7037e-08  
a 2.289891464150921 8.7035e-09 au
q 1.941180250198692 1.0655e-07 au
i 2.010137245579955 4.5506e-06 deg
node 215.9300652380545 0.0001348 deg
peri 292.5085818279089 0.00013594 deg
M 342.9800318166658 1.5742e-05 deg
tp 2458660.337992821256
(2019-Jun-25.83799282)
5.5462e-05 TDB
period 1265.670839311291
3.47
7.2159e-06
1.976e-08
d
yr
n .2844341426052704 1.6216e-09 deg/d
Q 2.63860267810315 1.0029e-08 au
  Orbit Determination Parameters
   # obs. used (total)      367  
   data-arc span      17488 days (47.88 yr)  
   first obs. used      1971-03-24  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58012  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:06:35  

Additional Information
 Earth MOID = .954063 au 
 Jupiter MOID = 2.36872 au 
 T_jup = 3.583 
[ 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 17.2   n/a MPO417088  

39407 (1187 T-1)          Discovered 1971-Mar-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1187 T-1 = 1997 WD5 = 1999 JZ16 = 2002 AO165 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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