Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
12378 (1994 PK1)
Classification: Main-belt Asteroid          SPK-ID: 2012378
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3323122897627815 6.8338e-08  
a 2.703595648237037 2.2027e-08 au
q 1.805157587778696 1.8517e-07 au
i 16.81979231866777 7.2156e-06 deg
node 69.56232067993737 2.8117e-05 deg
peri 264.6090152158749 2.9279e-05 deg
M 325.1286706027853 1.3995e-05 deg
tp 2457757.781281282361
(2017-Jan-04.28128128)
6.4199e-05 JED
period 1623.719606920766
4.45
1.9843e-05
5.433e-08
d
yr
n .2217131569179648 2.7095e-09 deg/d
Q 3.602033708695378 2.9346e-08 au
  Orbit Determination Parameters
   # obs. used (total)      597  
   data-arc span      9298 days (25.46 yr)  
   first obs. used      1990-10-21  
   last obs. used      2016-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57781  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:13:56  

Additional Information
 Earth MOID = .885132 au 
 Jupiter MOID = 2.11692 au 
 T_jup = 3.226 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO319239  

12378 (1994 PK1)          Discovered 1994-Aug-15 by McNaught, R. H. at Siding Spring
Reference: 19991123/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 PK1 = 1990 US6 = 1998 JT2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-May-01 17:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin