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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1097943444978325 6.8859e-08  
a 2.275659115801623 1.4754e-08 au
q 2.025804614881666 1.5972e-07 au
i 6.615895157931798 7.7054e-06 deg
node 35.06913424677237 4.211e-05 deg
peri 5.174195195641282 4.9503e-05 deg
M 117.7105392329339 2.4096e-05 deg
tp 2456990.511112142938
(2014-Nov-29.01111214)
8.4683e-05 JED
period 1253.889418826541
3.43
1.2194e-05
3.339e-08
d
yr
n .2871066575686617 2.7921e-09 deg/d
Q 2.525513616721579 1.6374e-08 au
  Orbit Determination Parameters
   # obs. used (total)      792  
   data-arc span      8385 days (22.96 yr)  
   first obs. used      1992-03-26  
   last obs. used      2015-03-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50679  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:12:09  

Additional Information
 Earth MOID = 1.03227 au 
 Jupiter MOID = 2.85272 au 
 T_jup = 3.592 
[ 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
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 SW = 1999 GJ31 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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