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91316 (1999 GW13)
Classification: Main-belt Asteroid          SPK-ID: 2091316
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1621220371243045 4.2298e-08  
a 2.554629720252083 1.2144e-08 au
q 2.140467945906523 1.0615e-07 au
i 4.393858122402884 4.4354e-06 deg
node 10.89906523364937 7.8408e-05 deg
peri 240.3733050290691 8.0409e-05 deg
M 112.0118866113471 1.8415e-05 deg
tp 2458932.463674873835
(2020-Mar-23.96367487)
7.5878e-05 TDB
period 1491.387049171408
4.08
1.0634e-05
2.911e-08
d
yr
n .2413860306752768 1.7212e-09 deg/d
Q 2.968791494597643 1.4113e-08 au
  Orbit Determination Parameters
   # obs. used (total)      455  
   data-arc span      10209 days (27.95 yr)  
   first obs. used      1992-09-28  
   last obs. used      2020-09-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60317  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:45:03  

Additional Information
 Earth MOID = 1.13076 au 
 Jupiter MOID = 2.08216 au 
 T_jup = 3.416 
[ 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 16.45   n/a E2021B10  

91316 (1999 GW13)          Discovered 1999-Apr-14 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 GW13 = 2003 FF57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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