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215681 (2003 WH147)
Classification: Main-belt Asteroid          SPK-ID: 2215681
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1746657200010993 6.5866e-08  
a 2.364090133567441 1.6407e-08 au
q 1.951164628240389 1.5196e-07 au
i 23.20850704412618 7.4239e-06 deg
node 233.6688578899968 1.3837e-05 deg
peri 19.88100134243106 2.1048e-05 deg
M 5.867844332622462 1.6487e-05 deg
tp 2458978.859337309572
(2020-May-09.35933731)
6.078e-05 TDB
period 1327.683238841531
3.63
1.3821e-05
3.784e-08
d
yr
n .2711490131592817 2.8227e-09 deg/d
Q 2.777015638894492 1.9273e-08 au
  Orbit Determination Parameters
   # obs. used (total)      368  
   data-arc span      8058 days (22.06 yr)  
   first obs. used      1998-05-22  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52373  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 04:14:51  

Additional Information
 Earth MOID = .947621 au 
 Jupiter MOID = 2.26516 au 
 T_jup = 3.421 
[ 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 15.8   n/a MPO367420  

215681 (2003 WH147)          Discovered 2003-Nov-23 by Spacewatch at Kitt Peak
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

Alternate Designations
 2003 WH147 = 1998 KY1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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