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 ]  
11802 Ivanovski (1981 EP12)
Classification: Main-belt Asteroid          SPK-ID: 2011802
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07231583344589636 3.3432e-08  
a 2.243130654201077 7.2338e-09 au
q 2.080916791414487 7.797e-08 au
i 5.113704382012336 3.1964e-06 deg
node 259.1558499209267 4.3124e-05 deg
peri 155.9401781955102 5.0918e-05 deg
M 242.3862385529633 2.7837e-05 deg
tp 2459001.399875345428
(2020-May-31.89987535)
9.5492e-05 TDB
period 1227.100922108893
3.36
5.9358e-06
1.625e-08
d
yr
n .2933744026378082 1.4191e-09 deg/d
Q 2.405344516987667 7.7569e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1608  
   data-arc span      14179 days (38.82 yr)  
   first obs. used      1981-02-09  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51214  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:19:41  

Additional Information
 Earth MOID = 1.09345 au 
 Jupiter MOID = 2.81662 au 
 T_jup = 3.624 
[ 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 14.5   n/a PDS3 (MPC 36219)  

11802 Ivanovski           Discovered 1981 Mar. 1 by S. J. Bus at Siding Spring.
Stavro Lambrov Ivanovski (b. 1977) is a scientist at Istituto di Astrofisica e Planetologia Spaziali (IAPS-Rome) whose research includes the dynamics of aspherical dust grains in cometary atmospheres.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-03-12Last Updated: 2017-04-19

Alternate Designations
 1981 EP12 = 1989 SK7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-15 18:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin