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 ]  
11474 (1982 SM2)
Classification: Main-belt Asteroid          SPK-ID: 2011474
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955997804609436 4.449e-08  
a 2.276021000549944 6.2915e-09 au
q 1.830831792517878 9.8571e-08 au
i 5.406520648933522 3.5003e-06 deg
node 348.5316304106426 3.5528e-05 deg
peri 355.4835902514816 3.6765e-05 deg
M 60.6809741253199 1.1844e-05 deg
tp 2458989.096162050303
(2020-May-19.59616205)
4.0729e-05 TDB
period 1254.188528758887
3.43
5.2003e-06
1.424e-08
d
yr
n .2870381858429583 1.1902e-09 deg/d
Q 2.72121020858201 7.5221e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1946  
   data-arc span      14002 days (38.34 yr)  
   first obs. used      1982-09-18  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48022  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:00:53  

Additional Information
 Earth MOID = .821503 au 
 Jupiter MOID = 2.68496 au 
 T_jup = 3.578 
[ 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 14.77   n/a E2021B10  
rotation period rot_per 1917.221 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

11474 (1982 SM2)          Discovered 1982-Sep-18 by Debehogne, H. at La Silla
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1982 SM2 = 1995 KD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-12 17:18 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin