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 ]  
393880 (2005 TO55)
Classification: Main-belt Asteroid          SPK-ID: 2393880
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1332160860286866 5.0021e-08  
a 2.226468948069368 1.2266e-08 au
q 1.929867469143159 1.1125e-07 au
i 4.25615775963799 4.7604e-06 deg
node 216.4270617913997 6.1498e-05 deg
peri 146.73731201068 6.3449e-05 deg
M 154.6049772351505 1.6392e-05 deg
tp 2458479.372056655756
(2018-Dec-26.87205666)
5.3233e-05 TDB
period 1213.454204120371
3.32
1.0028e-05
2.746e-08
d
yr
n .2966737424268622 2.4517e-09 deg/d
Q 2.523070426995576 1.39e-08 au
  Orbit Determination Parameters
   # obs. used (total)      304  
   data-arc span      6828 days (18.69 yr)  
   first obs. used      2001-05-23  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48545  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:52:44  

Additional Information
 Earth MOID = .929358 au 
 Jupiter MOID = 2.93932 au 
 T_jup = 3.630 
[ 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 17.6   n/a MPO455793  

393880 (2005 TO55)          Discovered 2005-Sep-23 by CSS at Catalina
Reference: Last Updated: 2014-05-15
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-03 18:34 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin