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17918 (1999 GE6)
Classification: Main-belt Asteroid          SPK-ID: 2017918
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2426417863273164 3.8876e-08  
a 2.892858974858643 1.1289e-08 au
q 2.190930505605932 1.1026e-07 au
i 8.984377969928062 3.4174e-06 deg
node 103.2599415578296 2.4779e-05 deg
peri 147.6124642153767 2.547e-05 deg
M 115.4284629395007 6.7523e-06 deg
tp 2458624.264868477686
(2019-May-20.76486848)
3.2219e-05 TDB
period 1797.170663675568
4.92
1.052e-05
2.88e-08
d
yr
n .2003148656253542 1.1726e-09 deg/d
Q 3.594787444111354 1.4028e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1972  
   data-arc span      8493 days (23.25 yr)  
   first obs. used      1997-11-24  
   last obs. used      2021-02-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47805  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:17:42  

Additional Information
 Earth MOID = 1.18086 au 
 Jupiter MOID = 1.49768 au 
 T_jup = 3.228 
[ 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 13.7   n/a MPO492946  
diameter diameter 12.262 km 0.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17918 (1999 GE6)          Discovered 1999-Apr-14 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

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