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
JPL Small-Body Database Browser
Search: [ help ]  
78920 (2003 SM108)
Classification: Main-belt Asteroid          SPK-ID: 2078920
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1269323406299823 4.3237e-08  
a 2.26503607641621 6.8729e-09 au
q 1.977529745625349 9.8743e-08 au
i 6.071987213924586 4.4105e-06 deg
node 215.0882059059623 3.4588e-05 deg
peri 171.0459701263863 3.7205e-05 deg
M 312.1044936338801 1.3524e-05 deg
tp 2459166.154554431031
(2020-Nov-12.65455443)
4.6912e-05 TDB
period 1245.119722491458
3.41
5.6672e-06
1.552e-08
d
yr
n .2891288231140117 1.316e-09 deg/d
Q 2.552542407207071 7.7452e-09 au
  Orbit Determination Parameters
   # obs. used (total)      786  
   data-arc span      8772 days (24.02 yr)  
   first obs. used      1996-10-18  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50889  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:25:02  

Additional Information
 Earth MOID = .982124 au 
 Jupiter MOID = 2.8816 au 
 T_jup = 3.599 
[ 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 16.3   n/a MPO432338  

78920 (2003 SM108)          Discovered 2003-Sep-20 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2003 SM108 = 1998 FM4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Dec-05 00:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin