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JPL Small-Body Database Browser
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11707 Grigery (1998 HW17)
Classification: Main-belt Asteroid          SPK-ID: 2011707
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1612837877666861 3.8353e-08  
a 2.21674619450142 5.8598e-09 au
q 1.859220971734844 8.4541e-08 au
i 3.604161123859552 3.5554e-06 deg
node 309.9626790394217 6.3475e-05 deg
peri 64.25731209130639 6.4544e-05 deg
M 78.84714042111463 1.0556e-05 deg
tp 2458736.468446683305
(2019-Sep-09.96844668)
3.5428e-05 TDB
period 1205.514349491313
3.30
4.78e-06
1.309e-08
d
yr
n .2986277186595979 1.1841e-09 deg/d
Q 2.574271417267996 6.8049e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1675  
   data-arc span      12232 days (33.49 yr)  
   first obs. used      1986-10-29  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50687  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:35:54  

Additional Information
 Earth MOID = .863111 au 
 Jupiter MOID = 2.90394 au 
 T_jup = 3.633 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO502259  

11707 Grigery           Discovered 1998 Apr. 18 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Chelsea Nicole Grigery (b. 1986) is a finalist in the 2002 Intel International Science and Engineering Fair for her chemistry project. She attends the Sikeston Junior High School, Sikeston, Missouri, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020724/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1998 HW17 = 1986 UG1 = 1989 RC3 = 1994 BG5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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