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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2498970245020559 6.1282e-08  
a 2.299045147070998 1.6709e-08 au
q 1.724520605622064 1.4342e-07 au
i 20.81981558244361 8.3077e-06 deg
node 322.4600133458832 1.6861e-05 deg
peri 279.3329491843068 2.5691e-05 deg
M 43.82785760081636 2.4005e-05 deg
tp 2457445.487251176054
(2016-Feb-26.98725118)
8.3846e-05 JED
period 1273.267566142251
3.49
1.3881e-05
3.8e-08
d
yr
n .282737116355464 3.0823e-09 deg/d
Q 2.873569688519932 2.0884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      544  
   data-arc span      14297 days (39.14 yr)  
   first obs. used      1977-02-12  
   last obs. used      2016-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5424  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:39:11  

Additional Information
 Earth MOID = .840584 au 
 Jupiter MOID = 2.57601 au 
 T_jup = 3.466 
[ 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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