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 ]  
12246 Pliska (1988 RJ8)
Classification: Main-belt Asteroid          SPK-ID: 2012246
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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1155937828955224 2.7297e-08  
a 2.316365406054802 5.8751e-09 au
q 2.048607966200604 6.3236e-08 au
i 5.997094992489176 2.983e-06 deg
node 181.460856206487 3.0475e-05 deg
peri 186.7419932187912 3.3426e-05 deg
M 343.8749906738354 1.3539e-05 deg
tp 2459058.177510383818
(2020-Jul-27.67751038)
4.8437e-05 TDB
period 1287.683208001783
3.53
4.899e-06
1.341e-08
d
yr
n .2795718681139325 1.0636e-09 deg/d
Q 2.584122845908999 6.5542e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2478  
   data-arc span      14297 days (39.14 yr)  
   first obs. used      1981-09-25  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46225  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:48:35  

Additional Information
 Earth MOID = 1.04744 au 
 Jupiter MOID = 2.87641 au 
 T_jup = 3.565 
[ 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 13.8   n/a MPO337362  

12246 Pliska           Discovered 1988 Sept. 11 by V. Ivanova at Smolyan.
Pliska was the first capital of the Bulgarian state, founded in 681. The conversion into Christianity under Knayz Boris I took pkace in Pliska in 855. There he welcomed the disciples of the brothers Saint Cyril and Saint Methodius, creators of the Slavic alphabet. It is also the birthplace of the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20101128/MPCPages.arcLast Updated: 2010-12-06

Alternate Designations
 1988 RJ8 = 1981 SY4 = 1981 UY18 = 1998 KE62 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-21 18:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin