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11539 (1992 PQ2)
Classification: Main-belt Asteroid          SPK-ID: 2011539
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1268712790196111 3.1371e-08  
a 2.275973301523133 7.2621e-09 au
q 1.987217657744406 7.1531e-08 au
i 5.748222340253188 3.5939e-06 deg
node 268.2614705965156 3.4588e-05 deg
peri 104.7382709800018 3.7377e-05 deg
M 113.3785250434501 1.4804e-05 deg
tp 2459001.517846024319
(2020-Jun-01.01784602)
5.1037e-05 TDB
period 1254.149102546117
3.43
6.0026e-06
1.643e-08
d
yr
n .28704720935425 1.3739e-09 deg/d
Q 2.56472894530186 8.1835e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1636  
   data-arc span      14074 days (38.53 yr)  
   first obs. used      1982-10-22  
   last obs. used      2021-05-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48261  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 09:57:14  

Additional Information
 Earth MOID = .996409 au 
 Jupiter MOID = 2.92777 au 
 T_jup = 3.592 
[ 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 14.67   n/a MPCxxxxx  
rotation period rot_per 5.915 h n/a LCDB (Rev. 2020-October); 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]

11539 (1992 PQ2)          Discovered 1992-Aug-02 by Holt, H. E. at Palomar
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1992 PQ2 = 1982 UU9 = 1996 YX1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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