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22507 (1997 WA31)
Classification: Main-belt Asteroid          SPK-ID: 2022507
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .17339055708826 4.0191e-08  
a 2.430685210104391 8.4869e-09 au
q 2.009227347418196 9.6803e-08 au
i 3.428510699812261 4.3399e-06 deg
node 71.50073101800899 5.8608e-05 deg
peri 217.2837544164339 5.9498e-05 deg
M 141.3160615397381 9.6212e-06 deg
tp 2458657.148927047463
(2019-Jun-22.64892705)
3.6926e-05 TDB
period 1384.176604779697
3.79
7.2494e-06
1.985e-08
d
yr
n .2600824192208457 1.3621e-09 deg/d
Q 2.852143072790586 9.9584e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1305  
   data-arc span      9008 days (24.66 yr)  
   first obs. used      1996-06-14  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54146  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:07:07  

Additional Information
 Earth MOID = .992259 au 
 Jupiter MOID = 2.31397 au 
 T_jup = 3.485 
[ 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 14.95   n/a E2021B10  

22507 (1997 WA31)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 WA31 = 1996 LU1 = 1999 CZ92 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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