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JPL Small-Body Database Browser
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117557 (2005 EG22)
Classification: Main-belt Asteroid          SPK-ID: 2117557
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1079008291708714 6.6152e-08  
a 3.09005854822103 3.4464e-08 au
q 2.756638668681442 2.0679e-07 au
i 5.126400402484713 8.3322e-06 deg
node 152.267170131704 8.1261e-05 deg
peri 97.15410885557874 9.2867e-05 deg
M 144.4797466438476 4.8567e-05 deg
tp 2457804.243556431883
(2017-Feb-19.74355643)
0.00026297 TDB
period 1984.031162451715
5.43
3.3192e-05
9.087e-08
d
yr
n .1814487629091165 3.0356e-09 deg/d
Q 3.423478427760619 3.8183e-08 au
  Orbit Determination Parameters
   # obs. used (total)      383  
   data-arc span      8475 days (23.20 yr)  
   first obs. used      1996-09-14  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61043  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 11:01:27  

Additional Information
 Earth MOID = 1.74862 au 
 Jupiter MOID = 1.62588 au 
 T_jup = 3.210 
[ 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 15.1   n/a MPO453646  
diameter diameter 4.266 km 0.624 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.097   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117557 (2005 EG22)          Discovered 2005-Mar-03 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2005 EG22 = 1996 RD18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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