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22522 (1998 EF6)
Classification: Main-belt Asteroid          SPK-ID: 2022522
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2498758488144005 6.247e-08  
a 2.298940396163065 1.7445e-08 au
q 1.724490713298105 1.4683e-07 au
i 20.82000503340811 8.3828e-06 deg
node 322.4598838993255 1.6888e-05 deg
peri 279.3155820323415 2.619e-05 deg
M 347.2899732576568 2.485e-05 deg
tp 2457445.450441101153
(2016-Feb-26.95044110)
8.8217e-05 JED
period 1273.18054670213
3.49
1.4492e-05
3.968e-08
d
yr
n .2827564408932369 3.2185e-09 deg/d
Q 2.873390079028025 2.1805e-08 au
  Orbit Determination Parameters
   # obs. used (total)      538  
   data-arc span      13911 days (38.09 yr)  
   first obs. used      1977-02-12  
   last obs. used      2015-03-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53604  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:12:13  

Additional Information
 Earth MOID = .839646 au 
 Jupiter MOID = 2.57515 au 
 T_jup = 3.467 
[ 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 14.5 mag n/a MPO270287  

22522 (1998 EF6)          Discovered 1998-Mar-02 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 EF6 = 1977 CT = 1991 CP4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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