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 ]  
22502 (1997 SW)
Classification: Main-belt Asteroid          SPK-ID: 2022502
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1095284649292295 6.9016e-08  
a 2.274678915890275 1.4946e-08 AU
q 2.02553682602593 1.6007e-07 AU
i 6.615219933315566 7.7809e-06 deg
node 35.09470294086363 4.4551e-05 deg
peri 4.909779639298439 5.1695e-05 deg
M 3.083006167744309 2.5221e-05 deg
tp 2456989.768746037491
(2014-Nov-28.26874604)
8.7804e-05 JED
period 1253.079370038966
3.43
1.235e-05
3.381e-08
d
yr
n .2872922566659168 2.8314e-09 deg/d
Q 2.523821005754621 1.6583e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      606  
   data-arc span      8254 days (22.60 yr)  
   first obs. used      1992-03-26  
   last obs. used      2014-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54261  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:40:54  

Additional Information
 Earth MOID = 1.03302 AU 
 T_jup = 3.593 
[ 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 15.1 mag n/a MPO309330  

22502 (1997 SW)          Discovered 1997-Sep-16 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 SW = 1999 GJ31 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Nov-23 04:36 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin