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22296 (1989 TW4)
Classification: Main-belt Asteroid          SPK-ID: 2022296
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1544984845033083 3.6413e-08  
a 2.292573969437872 6.7838e-09 au
q 1.938374765547987 8.6607e-08 au
i 6.853255494348708 3.3743e-06 deg
node 53.23594934358658 3.1069e-05 deg
peri 348.5110929810185 3.3595e-05 deg
M 337.5484648339111 1.3735e-05 deg
tp 2459279.572779250439
(2021-Mar-06.07277925)
4.8567e-05 TDB
period 1267.895505566744
3.47
5.6276e-06
1.541e-08
d
yr
n .2839350706895057 1.2603e-09 deg/d
Q 2.646773173327757 7.8318e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1167  
   data-arc span      11457 days (31.37 yr)  
   first obs. used      1989-09-29  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54255  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:03:48  

Additional Information
 Earth MOID = .946642 au 
 Jupiter MOID = 2.74826 au 
 T_jup = 3.572 
[ 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 15.56   n/a E2021B10  

22296 (1989 TW4)          Discovered 1989-Oct-07 by Elst, E. W. at La Silla
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1989 TW4 = 1998 HD27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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