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 ]  
42490 (1991 SU)
Classification: Main-belt Asteroid          SPK-ID: 2042490
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1380993893101878 5.766e-08  
a 2.413815510688453 1.6467e-08 AU
q 2.080469062754918 1.3495e-07 AU
i 8.393082610991403 6.5154e-06 deg
node 109.8182577660128 3.9959e-05 deg
peri 285.3775081739195 4.687e-05 deg
M 32.85790472702068 2.4081e-05 deg
tp 2456875.476428057698
(2014-Aug-05.97642806)
9.1552e-05 JED
period 1369.79172205756
3.75
1.4017e-05
3.838e-08
d
yr
n .2628136775854107 2.6894e-09 deg/d
Q 2.747161958621987 1.8741e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      978  
   data-arc span      11040 days (30.23 yr)  
   first obs. used      1984-12-23  
   last obs. used      2015-03-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50856  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:59:00  

Additional Information
 Earth MOID = 1.10601 AU 
 T_jup = 3.490 
[ 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 MPO266156  

42490 (1991 SU)          Discovered 1991-Sep-30 by McNaught, R. H. at Siding Spring
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 SU = 1984 YU2 = 2000 CD3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Apr-19 22:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin