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 ]  
393508 (2002 RT261)
Classification: Main-belt Asteroid          SPK-ID: 2393508
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2277092633657009 4.4651e-08  
a 2.597687510523094 1.8614e-08 au
q 2.006170001047599 1.1042e-07 au
i 3.605281822440589 9.7831e-06 deg
node 33.26166078701054 8.0936e-05 deg
peri 284.3528468056185 8.6559e-05 deg
M 101.1403188153197 2.8426e-05 deg
tp 2458570.864060048524
(2019-Mar-28.36406005)
0.00011774 TDB
period 1529.251046409629
4.19
1.6437e-05
4.5e-08
d
yr
n .2354093533858989 2.5303e-09 deg/d
Q 3.189205019998589 2.2853e-08 au
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      7763 days (21.25 yr)  
   first obs. used      1998-10-18  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64571  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:51:01  

Additional Information
 Earth MOID = .996704 au 
 Jupiter MOID = 2.13433 au 
 T_jup = 3.376 
[ 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 17.2   n/a MPO440698  

393508 (2002 RT261)          Discovered 2002-Sep-05 by LINEAR at Socorro
Reference: Last Updated: 2014-05-15

Alternate Designations
 2002 RT261 = 2006 ON13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-01 00:00 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin