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 ]  
136968 (1998 RY40)
Classification: Main-belt Asteroid          SPK-ID: 2136968
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2268654475578671 1.2469e-07  
a 2.556202230634509 3.2241e-08 au
q 1.976288267533193 3.2492e-07 au
i 10.47513847450694 1.3557e-05 deg
node 156.692787950572 3.8728e-05 deg
peri 190.5626055096412 4.8924e-05 deg
M 19.45896304123581 4.6056e-05 deg
tp 2458519.812096103895
(2019-Feb-05.31209610)
0.00018955 TDB
period 1492.764303063958
4.09
2.8242e-05
7.732e-08
d
yr
n .2411633231455801 4.5626e-09 deg/d
Q 3.136116193735825 3.9555e-08 au
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      7240 days (19.82 yr)  
   first obs. used      1998-09-14  
   last obs. used      2018-07-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68027  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 11:20:58  

Additional Information
 Earth MOID = .969162 au 
 Jupiter MOID = 2.28464 au 
 T_jup = 3.378 
[ 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 16.1   n/a MPO453851  

136968 (1998 RY40)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Alternate Designations
 1998 RY40 = 2002 PJ56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin