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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
193804 (2001 PQ20)
Classification: Main-belt Asteroid          SPK-ID: 2193804
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1554982609624632 5.7092e-08  
a 2.288015373441034 1.3881e-08 au
q 1.932232961815572 1.2808e-07 au
i 7.320833412337055 8.8069e-06 deg
node 44.53143225209257 5.2478e-05 deg
peri 244.5642679929421 6.0487e-05 deg
M 66.62636450297582 3.1013e-05 deg
tp 2458366.546013485222
(2018-Sep-05.04601349)
0.00010812 TDB
period 1264.115726163601
3.46
1.1504e-05
3.15e-08
d
yr
n .2847840530332973 2.5916e-09 deg/d
Q 2.643797785066496 1.604e-08 au
  Orbit Determination Parameters
   # obs. used (total)      266  
   data-arc span      7187 days (19.68 yr)  
   first obs. used      1998-10-12  
   last obs. used      2018-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58525  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:12:07  

Additional Information
 Earth MOID = .928979 au 
 Jupiter MOID = 2.52673 au 
 T_jup = 3.574 
[ 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 16.5   n/a MPO401553  

193804 (2001 PQ20)          Discovered 2001-Aug-10 by NEAT at Palomar
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

Alternate Designations
 2001 PQ20 = 1998 TY10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Oct-21 01:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin