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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1865317982626861 7.3474e-08  
a 2.283012993380813 1.8644e-08 AU
q 1.857158474268412 1.5961e-07 AU
i 4.706900410816948 6.2813e-06 deg
node 243.8954109033601 8.1869e-05 deg
peri 72.64539647021975 8.7899e-05 deg
M 175.6012423777232 3.7813e-05 deg
tp 2456385.909157192046
(2013-Apr-03.40915719)
0.00012638 JED
period 1259.972312353819
3.45
1.5434e-05
4.226e-08
d
yr
n .2857205642300706 3.4999e-09 deg/d
Q 2.708867512493213 2.2121e-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 = .851154 AU 
 T_jup = 3.576 
[ 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. 2015-July); 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., in press.]

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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