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 ]  
136576 (1981 EN33)
Classification: Main-belt Asteroid          SPK-ID: 2136576
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 .1423240804530993 6.7243e-08  
a 2.239827563163655 1.4988e-08 au
q 1.921046164862882 1.4968e-07 au
i 3.948444634534565 7.2615e-06 deg
node 318.2606851749257 6.6231e-05 deg
peri 180.4171886471487 7.0186e-05 deg
M 159.8789874709074 2.7911e-05 deg
tp 2458056.737576685508
(2017-Oct-30.23757669)
9.0628e-05 TDB
period 1224.391494403465
3.35
1.229e-05
3.365e-08
d
yr
n .2940236040886542 2.9513e-09 deg/d
Q 2.558608961464428 1.7121e-08 au
  Orbit Determination Parameters
   # obs. used (total)      395  
   data-arc span      14135 days (38.70 yr)  
   first obs. used      1981-02-09  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56013  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 16:04:00  

Additional Information
 Earth MOID = .934849 au 
 Jupiter MOID = 2.46547 au 
 T_jup = 3.619 
[ 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 16.9   n/a MPO439843  

136576 (1981 EN33)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

Alternate Designations
 1981 EN33 = 2001 DM63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin