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JPL Small-Body Database Browser
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117634 (2005 EJ128)
Classification: Main-belt Asteroid          SPK-ID: 2117634
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1726800551761392 5.4599e-08  
a 2.38798936631936 1.2133e-08 au
q 1.9756312307833 1.3114e-07 au
i 3.629719039354815 5.5445e-06 deg
node 317.211690234532 6.6665e-05 deg
peri 338.1995026464925 6.8165e-05 deg
M 190.0311137425955 1.4682e-05 deg
tp 2459236.876212604437
(2021-Jan-22.37621260)
5.5484e-05 TDB
period 1347.86690424417
3.69
1.0273e-05
2.813e-08
d
yr
n .2670886857347933 2.0356e-09 deg/d
Q 2.800347501855421 1.4229e-08 au
  Orbit Determination Parameters
   # obs. used (total)      514  
   data-arc span      10044 days (27.50 yr)  
   first obs. used      1991-07-10  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59958  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:07:51  

Additional Information
 Earth MOID = .959535 au 
 Jupiter MOID = 2.3972 au 
 T_jup = 3.511 
[ 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 16.2   n/a MPO426742  
rotation period rot_per 9.350 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

117634 (2005 EJ128)          Discovered 2005-Mar-09 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2005 EJ128 = 1991 NT5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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