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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1242974853708701 6.0613e-08  
a 2.190341542747404 1.0934e-08 AU
q 1.918087596880549 1.3188e-07 AU
i 1.599615849126523 4.7426e-06 deg
node 259.1697338218777 0.00020899 deg
peri 80.66381372587556 0.00020997 deg
M 159.7257842105358 2.4433e-05 deg
tp 2456475.162122007710
(2013-Jul-01.66212201)
7.9601e-05 JED
period 1184.039490004581
3.24
8.8658e-06
2.427e-08
d
yr
n .3040439132639126 2.2766e-09 deg/d
Q 2.462595488614258 1.2293e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      918  
   data-arc span      6962 days (19.06 yr)  
   first obs. used      1996-04-17  
   last obs. used      2015-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53969  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:27:27  

Additional Information
 Earth MOID = .910525 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 15.0 mag n/a MPO337401  

16830 (1997 WQ7)          Discovered 1997-Nov-19 by Shimizu, Y., Urata, T. at Nachi-Katsuura
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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