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17477 (1991 GN9)
Classification: Main-belt Asteroid          SPK-ID: 2017477
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1516737598843326 2.9871e-08  
a 2.319107078585517 7.7888e-09 au
q 1.967359388402081 6.9764e-08 au
i 1.824686756128203 3.5243e-06 deg
node 88.27828044762779 0.00011887 deg
peri 25.42527321328334 0.00011962 deg
M 270.0342712200135 1.3568e-05 deg
tp 2459718.869711602605
(2022-May-19.36971160)
4.9123e-05 TDB
period 1289.970055828133
3.53
6.4986e-06
1.779e-08
d
yr
n .2790762455093486 1.4059e-09 deg/d
Q 2.670854768768952 8.9702e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1449  
   data-arc span      11075 days (30.32 yr)  
   first obs. used      1991-04-10  
   last obs. used      2021-08-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50446  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 21:57:40  

Additional Information
 Earth MOID = .984429 au 
 Jupiter MOID = 2.42141 au 
 T_jup = 3.563 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.41   n/a E2021B10  

17477 (1991 GN9)          Discovered 1991-Apr-10 by Elst, E. W. at La Silla
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 GN9 = 1991 HP = 1996 TU40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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