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 ]  
48406 (1981 EQ47)
Classification: Main-belt Asteroid          SPK-ID: 2048406
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1529761812162491 4.2722e-08  
a 2.429222777784948 7.5028e-09 au
q 2.057609553915878 1.0365e-07 au
i 1.653410500887041 3.5845e-06 deg
node 127.1775831718032 0.00014953 deg
peri 279.5690867631656 0.00015011 deg
M 142.858317873579 1.198e-05 deg
tp 2458051.714693004420
(2017-Oct-25.21469300)
4.5987e-05 TDB
period 1382.92759889025
3.79
6.4069e-06
1.754e-08
d
yr
n .2603173154465117 1.206e-09 deg/d
Q 2.800836001654019 8.6505e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1396  
   data-arc span      13970 days (38.25 yr)  
   first obs. used      1981-02-09  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53782  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:38:03  

Additional Information
 Earth MOID = 1.06752 au 
 Jupiter MOID = 2.57049 au 
 T_jup = 3.492 
[ 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 15.2   n/a MPO337644  
rotation period rot_per 78.294 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

48406 (1981 EQ47)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EQ47 = 1992 DX13 = 1996 CL9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin