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 ]  
15810 (1994 JR1)
Classification: TransNeptunian Object          SPK-ID: 2015810
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1160294766963252 0.00023013  
a 39.26473840008283 0.012997 AU
q 34.70887135090311 0.0025402 AU
i 3.807961388775669 0.00016585 deg
node 144.6794883378788 0.0091461 deg
peri 101.0125212290314 0.12977 deg
M 28.45219474421966 0.10082 deg
tp 2449897.926098490429
(1995-Jun-29.42609849)
25.408 JED
period 89867.4646202086
246.04
44.621
0.1222
d
yr
n .004005899148500584 1.989e-06 deg/d
Q 43.82060544926254 0.014505 AU
  Orbit Determination Parameters
   # obs. used (total)      37  
   data-arc span      2236 days (6.12 yr)  
   first obs. used      1994-05-12  
   last obs. used      2000-06-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      4  
   fit RMS      .47087  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 21:23:50  

Additional Information
 Earth MOID = 33.6994 AU 
 T_jup = 5.577 
[ 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 7.7 mag n/a PDS3 (MPO 1707)  

15810 (1994 JR1)          Discovered 1994-May-12 by Irwin, M. J., Zytkow, A. at La Palma (950)
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Sep-30 21:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin