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 ]  
452220 (2015 RT221)
Classification: Main-belt Asteroid          SPK-ID: 2452220
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0240395575203401 9.2448e-08  
a 2.990377506119446 6.4017e-08 au
q 2.918490154053556 2.781e-07 au
i 7.663757050679299 1.1631e-05 deg
node 15.93679623134326 4.4782e-05 deg
peri 317.5279818947359 0.00019643 deg
M 287.2221608877043 0.00019392 deg
tp 2458982.342362621750
(2020-May-12.84236262)
0.001021 TDB
period 1888.80643092089
5.17
6.0653e-05
1.661e-07
d
yr
n .1905965556377746 6.1204e-09 deg/d
Q 3.062264858185335 6.5556e-08 au
  Orbit Determination Parameters
   # obs. used (total)      99  
   data-arc span      4552 days (12.46 yr)  
   first obs. used      2005-10-27  
   last obs. used      2018-04-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57339  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-15 06:48:52  

Additional Information
 Earth MOID = 1.91397 au 
 Jupiter MOID = 2.02111 au 
 T_jup = 3.242 
[ 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 16.3   n/a MPO440874  

452220 (2015 RT221)          Discovered 2005-Oct-27 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-11-30

Alternate Designations
 2015 RT221 = 2005 UK385 = 2013 FO27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-13 06:08 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin