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 ]  
277320 (2005 SJ218)
Classification: Main-belt Asteroid          SPK-ID: 2277320
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1723463349364387 1.1605e-07  
a 2.312177015792224 9.9058e-09 au
q 1.913681781396162 2.7134e-07 au
i 4.832963618783009 8.6874e-06 deg
node 159.5284488832589 8.7684e-05 deg
peri 194.702460372362 8.9565e-05 deg
M 329.6064840719795 1.7823e-05 deg
tp 2458708.919771590085
(2019-Aug-13.41977159)
6.3376e-05 TDB
period 1284.192255508252
3.52
8.2526e-06
2.259e-08
d
yr
n .2803318572089665 1.8015e-09 deg/d
Q 2.710672250188285 1.1613e-08 au
  Orbit Determination Parameters
   # obs. used (total)      348  
   data-arc span      8689 days (23.79 yr)  
   first obs. used      1996-01-21  
   last obs. used      2019-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55782  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 20:10:41  

Additional Information
 Earth MOID = .908069 au 
 Jupiter MOID = 2.72025 au 
 T_jup = 3.559 
[ 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 16.7   n/a MPO440344  

277320 (2005 SJ218)          Discovered 2005-Sep-30 by NEAT at Palomar
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

Alternate Designations
 2005 SJ218 = 1998 UR25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-16 13:07 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin