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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1095284556188491 6.8792e-08  
a 2.274678918362423 1.465e-08 AU
q 2.025536849405432 1.5947e-07 AU
i 6.615220941683893 7.7043e-06 deg
node 35.09469876956361 4.2127e-05 deg
peri 4.909787504120081 4.9565e-05 deg
M 3.083001084843622 2.4378e-05 deg
tp 2456989.768763712435
(2014-Nov-28.26876371)
8.4874e-05 JED
period 1253.079372081758
3.43
1.2106e-05
3.314e-08
d
yr
n .287292256197568 2.7755e-09 deg/d
Q 2.523820987319413 1.6255e-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 = 1.03302 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
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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