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 ]  
27715 (1989 CR1)
Classification: Main-belt Asteroid          SPK-ID: 2027715
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1623078311956018 9.8592e-08  
a 2.331842290106743 1.6708e-08 AU
q 1.953366025309333 2.3521e-07 AU
i 8.525705104847908 7.5055e-06 deg
node 262.272181001482 5.837e-05 deg
peri 311.0646352909207 6.3741e-05 deg
M 339.4315938200751 2.9933e-05 deg
tp 2456874.809669153426
(2014-Aug-05.30966915)
0.00010849 JED
period 1300.610298203041
3.56
1.3978e-05
3.827e-08
d
yr
n .2767931335753576 2.9749e-09 deg/d
Q 2.710318554904155 1.942e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      9180 days (25.13 yr)  
   first obs. used      1989-02-04  
   last obs. used      2014-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61462  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:25:56  

Additional Information
 Earth MOID = .958069 AU 
 T_jup = 3.538 
[ 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 14.4 mag n/a MPO257058  

27715 (1989 CR1)          Discovered 1989-Feb-05 by Oshima, Y. at Gekko (888)
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1989 CR1 = 1998 WW12 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-23 11:53 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin