Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
11539 (1992 PQ2)
Classification: Main-belt Asteroid          SPK-ID: 2011539
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1266875171053794 3.6234e-08  
a 2.275358562799369 8.4093e-09 au
q 1.987099035953852 8.4462e-08 au
i 5.748984374703538 3.6039e-06 deg
node 268.2625598147438 3.8611e-05 deg
peri 104.6439197622401 4.1253e-05 deg
M 359.7865354917863 1.5729e-05 deg
tp 2459001.243355177090
(2020-May-31.74335518)
5.4777e-05 TDB
period 1253.641019725481
3.43
6.9499e-06
1.903e-08
d
yr
n .2871635454931362 1.592e-09 deg/d
Q 2.563618089644885 9.4747e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1455  
   data-arc span      13905 days (38.07 yr)  
   first obs. used      1982-10-22  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50476  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:46:20  

Additional Information
 Earth MOID = .997055 au 
 Jupiter MOID = 2.92693 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 14.6   n/a MPO435808  
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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-15 19:14 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin