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39392 (4893 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2039392
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02685487346182234 3.4526e-08  
a 2.879401873136944 1.5941e-08 au
q 2.802075900188117 1.0277e-07 au
i 2.266113874146879 4.3339e-06 deg
node 25.07139695188565 9.5334e-05 deg
peri 67.47728118374538 0.00012675 deg
M 353.4483978667307 8.2532e-05 deg
tp 2459032.978567500988
(2020-Jul-02.47856750)
0.00040915 TDB
period 1784.645047503997
4.89
1.4821e-05
4.058e-08
d
yr
n .2017207850398575 1.6752e-09 deg/d
Q 2.956727846085771 1.637e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1497  
   data-arc span      21676 days (59.35 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48779  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:12:05  

Additional Information
 Earth MOID = 1.81968 au 
 Jupiter MOID = 2.07772 au 
 T_jup = 3.293 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO449241  
rotation period rot_per 2.96 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

39392 (4893 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 4893 P-L = 1999 RP87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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