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39560 (1992 PM2)
Classification: Main-belt Asteroid          SPK-ID: 2039560
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1870178392016744 7.3883e-08  
a 2.28160875651695 1.8198e-08 au
q 1.854907216969531 1.6083e-07 au
i 4.707662612889258 6.2865e-06 deg
node 243.8012584739098 8.1869e-05 deg
peri 72.98655943402332 8.7875e-05 deg
M 346.8604322173247 3.9434e-05 deg
tp 2457646.445054195552
(2016-Sep-14.94505420)
0.00013834 JED
period 1258.810014451714
3.45
1.506e-05
4.123e-08
d
yr
n .2859843787919031 3.4215e-09 deg/d
Q 2.708310296064369 2.1601e-08 au
  Orbit Determination Parameters
   # obs. used (total)      660  
   data-arc span      8294 days (22.71 yr)  
   first obs. used      1992-07-31  
   last obs. used      2015-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55985  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 17:23:27  

Additional Information
 Earth MOID = .847584 au 
 Jupiter MOID = 2.57913 au 
 T_jup = 3.577 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5 mag n/a MPO337578  
rotation period rot_per 51.3661 h n/a LCDB (Rev. 2016-February); 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. (2016) Astron. J. 150, A75.]

39560 (1992 PM2)          Discovered 1992-Aug-02 by Holt, H. E. at Palomar
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1992 PM2 = 1999 RR196 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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