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17920 Zarnecki (1999 GE9)
Classification: Main-belt Asteroid          SPK-ID: 2017920
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09344093402278303 5.8064e-08  
a 2.360648296962226 1.31e-08 au
q 2.140067115194783 1.3406e-07 au
i 6.395300126765078 5.7878e-06 deg
node 184.7394121062005 5.2123e-05 deg
peri 59.69518321145642 6.0967e-05 deg
M 249.2495490442919 3.4376e-05 deg
tp 2458008.057004592072
(2017-Sep-11.55700459)
0.00012771 JED
period 1324.784868928644
3.63
1.1028e-05
3.019e-08
d
yr
n .2717422341116657 2.262e-09 deg/d
Q 2.581229478729668 1.4324e-08 au
  Orbit Determination Parameters
   # obs. used (total)      816  
   data-arc span      20230 days (55.39 yr)  
   first obs. used      1960-09-24  
   last obs. used      2016-02-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55453  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 19:17:38  

Additional Information
 Earth MOID = 1.13576 au 
 Jupiter MOID = 2.42495 au 
 T_jup = 3.537 
[ 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 15.1 mag n/a MPO365467  

17920 Zarnecki           Discovered 1999 Apr. 10 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
John C. Zarnecki (b. 1949), of the Open University, Milton Keynes, has developed spacecraft instrumentation to study the surfaces and atmospheres of planets, satellites and small bodies. He is a PI for the Huygens probe/lander on the Cassini mission to Saturn and Saturn VI (Titan).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050721/MPCPages.arcLast Updated: 2005-07-21

[ show close-approach data ]
Alternate Designations
 1999 GE9 = 1977 ED8 = 6249 P-L 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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