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16722 (1995 WG7)
Classification: Main-belt Asteroid          SPK-ID: 2016722
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2271517724819777 7.6094e-08  
a 3.12904606721297 3.8846e-08 AU
q 2.418277706867782 2.352e-07 AU
i 17.79030561288573 9.6013e-06 deg
node 245.8750677294995 2.6512e-05 deg
peri 118.1155564996319 3.4919e-05 deg
M 184.5606175587004 2.3115e-05 deg
tp 2457985.737541025640
(2017-Aug-20.23754103)
0.00014114 JED
period 2021.698377146903
5.54
3.7648e-05
1.031e-07
d
yr
n .1780681055440355 3.316e-09 deg/d
Q 3.839814427558157 4.767e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      587  
   data-arc span      7087 days (19.40 yr)  
   first obs. used      1995-11-24  
   last obs. used      2015-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53065  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:27:09  

Additional Information
 Earth MOID = 1.47519 AU 
 T_jup = 3.101 
[ 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 13.0 mag n/a MPO250377  

16722 (1995 WG7)          Discovered 1995-Nov-24 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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