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22502 (1997 SW)
Classification: Main-belt Asteroid          SPK-ID: 2022502
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1098564483865689 3.8133e-08  
a 2.275729015823454 9.1128e-09 au
q 2.025725508654827 8.6096e-08 au
i 6.614734303297443 4.2689e-06 deg
node 35.01704318397251 3.2982e-05 deg
peri 4.778824923907718 3.7826e-05 deg
M 275.2125671794482 1.8383e-05 deg
tp 2459495.830453545592
(2021-Oct-08.33045355)
6.4472e-05 TDB
period 1253.947191695632
3.43
7.5318e-06
2.062e-08
d
yr
n .2870934297585492 1.7244e-09 deg/d
Q 2.52573252299208 1.0114e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1347  
   data-arc span      10362 days (28.37 yr)  
   first obs. used      1992-03-26  
   last obs. used      2020-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51556  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:07:04  

Additional Information
 Earth MOID = 1.03242 au 
 Jupiter MOID = 2.847 au 
 T_jup = 3.592 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.18   n/a E2021B10  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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