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 ]  
17420 (1988 RL13)
Classification: Jupiter Trojan          SPK-ID: 2017420
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08297061302231654 6.9254e-08  
a 5.202577797065096 1.2067e-07 au
q 4.770916727946312 3.6771e-07 au
i 15.85832904680417 7.588e-06 deg
node 59.31456910903061 2.1461e-05 deg
peri 258.2811222746777 6.6243e-05 deg
M 230.6874891660796 7.005e-05 deg
tp 2460157.413001133622
(2023-Jul-31.91300113)
0.00087579 TDB
period 4334.373192458965
11.87
0.00015079
4.128e-07
d
yr
n .08305699209895809 2.8896e-09 deg/d
Q 5.63423886618388 1.3068e-07 au
  Orbit Determination Parameters
   # obs. used (total)      742  
   data-arc span      14765 days (40.42 yr)  
   first obs. used      1978-11-30  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5694  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:30:53  

Additional Information
 Earth MOID = 3.80202 au 
 Jupiter MOID = .207022 au 
 T_jup = 2.917 
[ 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 11.9   n/a MPO435861  
diameter diameter 18.361 km 0.980 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.100   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

17420 (1988 RL13)          Discovered 1988-Sep-14 by Bus, S. J. at Cerro Tololo
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-20 11:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin