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160368 (2004 EY42)
Classification: Main-belt Asteroid          SPK-ID: 2160368
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1232912290471199 4.1421e-08  
a 2.236233223145668 1.1704e-08 au
q 1.960525280628036 9.2428e-08 au
i 3.804344447816898 4.6013e-06 deg
node 114.1076094588616 9.6221e-05 deg
peri 171.4562343018318 0.00010028 deg
M 216.0843803585819 2.8901e-05 deg
tp 2459488.791878669366
(2021-Oct-01.29187867)
9.8843e-05 TDB
period 1221.445432809586
3.34
9.5893e-06
2.625e-08
d
yr
n .2947327734255987 2.3139e-09 deg/d
Q 2.5119411656633 1.3147e-08 au
  Orbit Determination Parameters
   # obs. used (total)      404  
   data-arc span      7839 days (21.46 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56858  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 13:18:54  

Additional Information
 Earth MOID = .9442 au 
 Jupiter MOID = 2.61364 au 
 T_jup = 3.625 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456693.5 (2014-Feb-05.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1235053953701247 4.139e-08  
q 1.959650091954347 9.2342e-08 au
tp 2457046.534906560472
(2015-Jan-24.03490656)
9.6277e-05 TDB
node 114.1436668144495 9.6245e-05 deg
peri 171.5714162073522 0.0001003 deg
i 3.804167328070627 4.6015e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      404  
   data-arc span      7839 days (21.46 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56858  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 13:18:54  

Additional Information
 Jupiter MOID = 2.61364 au 
 T_jup = 3.625 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.713155060592017E-15 -3.798713447316081E-15 7.940099604524283E-13 -7.308451913379962E-15 1.822199471939964E-13 -5.259857169433068E-16
q -3.798713447316081E-15 8.527127102835257E-15 -1.750913966979411E-12 1.560110744811847E-14 -4.106887314378301E-13 1.196909392845326E-15
tp 7.940099604524283E-13 -1.750913966979411E-12 9.269231479713842E-9 -5.138743763078471E-11 2.758545274159078E-9 -7.057344535007033E-12
node -7.308451913379962E-15 1.560110744811847E-14 -5.138743763078471E-11 9.263151282354559E-9 -9.257847570560202E-9 9.686427451073389E-11
peri 1.822199471939964E-13 -4.106887314378301E-13 2.758545274159078E-9 -9.257847570560202E-9 1.006017568741084E-8 -9.872477915324635E-11
i -5.259857169433068E-16 1.196909392845326E-15 -7.057344535007033E-12 9.686427451073389E-11 -9.872477915324635E-11 2.117371921850904E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO401353  

160368 (2004 EY42)          Discovered 2004-Mar-15 by CSS at Catalina
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06

Alternate Designations
 2004 EY42 = 2001 LQ18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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