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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1267973867565756 3.1423e-08  
a 2.275741633048017 7.2451e-09 au
q 1.987183541044387 7.1644e-08 au
i 5.748775897237605 3.596e-06 deg
node 268.26420789881 3.4637e-05 deg
peri 104.6926865091329 3.7427e-05 deg
M 57.16525341887318 1.4737e-05 deg
tp 2459001.381096875605
(2020-May-31.88109688)
5.1071e-05 TDB
period 1253.957620016707
3.43
5.9882e-06
1.639e-08
d
yr
n .2870910421958308 1.371e-09 deg/d
Q 2.564299725051647 8.1638e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1629  
   data-arc span      14013 days (38.37 yr)  
   first obs. used      1982-10-22  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48264  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:49:47  

Additional Information
 Earth MOID = .995721 au 
 Jupiter MOID = 2.92723 au 
 T_jup = 3.592 
[ 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 14.66   n/a E2021B10  
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

[ show close-approach data ]
Alternate Designations
 1992 PQ2 = 1982 UU9 = 1996 YX1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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