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74354 (1998 WA6)
Classification: Main-belt Asteroid          SPK-ID: 2074354
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2844897894866077 9.4813e-08  
a 2.684219051878974 2.1875e-08 AU
q 1.920586138873983 2.5777e-07 AU
i 5.682164554259113 9.9575e-06 deg
node 50.07038434852212 0.00010572 deg
peri 333.5906979623426 0.00010685 deg
M 203.5639386140562 1.5697e-05 deg
tp 2457498.506924541764
(2016-Apr-20.00692454)
7.4124e-05 JED
period 1606.295189285643
4.40
1.9636e-05
5.376e-08
d
yr
n .2241182084098131 2.7397e-09 deg/d
Q 3.447851964883965 2.8099e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      329  
   data-arc span      6537 days (17.90 yr)  
   first obs. used      1996-05-16  
   last obs. used      2014-04-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59642  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 15:21:46  

Additional Information
 Earth MOID = .925125 AU 
 T_jup = 3.309 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2 mag n/a MPO257338  

74354 (1998 WA6)          Discovered 1998-Nov-18 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 WA6 = 2002 QA43 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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