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 ]  
17300 (4321 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2017300
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2739658849809342 3.9296e-08  
a 2.373431690151942 9.8585e-09 au
q 1.723192376717671 9.5021e-08 au
i 7.901120501128644 6.9162e-06 deg
node 200.2255063811383 3.396e-05 deg
peri 88.21365101264196 3.6507e-05 deg
M 53.31068288184731 1.3031e-05 deg
tp 2458402.723231361524
(2018-Oct-11.22323136)
4.7696e-05 TDB
period 1335.560395421148
3.66
8.3213e-06
2.278e-08
d
yr
n .2695497719415973 1.6794e-09 deg/d
Q 3.023671003586214 1.2559e-08 au
  Orbit Determination Parameters
   # obs. used (total)      530  
   data-arc span      21109 days (57.79 yr)  
   first obs. used      1960-09-24  
   last obs. used      2018-07-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59518  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 17:42:29  

Additional Information
 Earth MOID = .729317 au 
 Jupiter MOID = 2.22112 au 
 T_jup = 3.479 
[ 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 16.3   n/a MPO347660  

17300 (4321 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 4321 P-L = 2000 LH20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-28 04:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin