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16830 (1997 WQ7)
Classification: Main-belt Asteroid          SPK-ID: 2016830
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1241367471652744 6.0742e-08  
a 2.189957133328401 1.1949e-08 AU
q 1.918102978365624 1.3178e-07 AU
i 1.600658366160121 5.5151e-06 deg
node 259.204270856343 0.00021485 deg
peri 80.44896962811642 0.0002162 deg
M 99.13683681093957 2.5641e-05 deg
tp 2456474.524916941239
(2013-Jul-01.02491694)
8.4224e-05 JED
period 1183.727801654091
3.24
9.6882e-06
2.652e-08
d
yr
n .3041239713192098 2.4891e-09 deg/d
Q 2.461811288291178 1.3432e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      812  
   data-arc span      6537 days (17.90 yr)  
   first obs. used      1996-04-17  
   last obs. used      2014-03-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55274  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 21:40:35  

Additional Information
 Earth MOID = .908737 AU 
 T_jup = 3.663 
[ 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 14.9 mag n/a MPO267772  

16830 (1997 WQ7)          Discovered 1997-Nov-19 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905)
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 WQ7 = 1996 HO9 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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