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379645 (2011 EY17)
Classification: Main-belt Asteroid          SPK-ID: 2379645
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2052418835738594 9.0563e-08  
a 2.577356065553321 3.3113e-08 au
q 2.048374652018646 2.4744e-07 au
i 5.863561915244583 9.2227e-06 deg
node 344.2758047043969 4.5696e-05 deg
peri 200.4914516048895 4.8608e-05 deg
M 80.24877407551384 2.0187e-05 deg
tp 2458663.603914824686
(2019-Jun-29.10391482)
8.0413e-05 TDB
period 1511.33262857058
4.14
2.9126e-05
7.974e-08
d
yr
n .2382003757442121 4.5905e-09 deg/d
Q 3.106337479087995 3.991e-08 au
  Orbit Determination Parameters
   # obs. used (total)      285  
   data-arc span      4400 days (12.05 yr)  
   first obs. used      2007-04-11  
   last obs. used      2019-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55513  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:12:34  

Additional Information
 Earth MOID = 1.05187 au 
 Jupiter MOID = 1.86466 au 
 T_jup = 3.389 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457169.5 (2015-May-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2052252783436999 9.0492e-08  
q 2.047097964615419 2.4732e-07 au
tp 2457152.095039296065
(2015-May-09.59503930)
6.481e-05 TDB
node 344.3373549295554 4.5706e-05 deg
peri 200.097083722106 4.8592e-05 deg
i 5.864259596123388 9.2221e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      285  
   data-arc span      4400 days (12.05 yr)  
   first obs. used      2007-04-11  
   last obs. used      2019-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55513  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:12:34  

Additional Information
 Jupiter MOID = 1.86466 au 
 T_jup = 3.389 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.188747808464974E-15 -2.228441626298347E-14 -3.883393197437549E-12 -4.158677454129526E-14 -8.484289947810365E-13 -8.077475751808627E-15
q -2.228441626298347E-14 6.116731293321513E-14 1.061817371063097E-11 1.135377223666396E-13 2.323257330747997E-12 2.302846836585635E-14
tp -3.883393197437549E-12 1.061817371063097E-11 4.200390604768551E-9 1.777498975447685E-11 1.074413141346349E-9 6.044834491662391E-12
node -4.158677454129526E-14 1.135377223666396E-13 1.777498975447685E-11 2.089067030076193E-9 -2.073268084066056E-9 -1.226735508049314E-10
peri -8.484289947810365E-13 2.323257330747997E-12 1.074413141346349E-9 -2.073268084066056E-9 2.361168105870511E-9 1.235928506975771E-10
i -8.077475751808627E-15 2.302846836585635E-14 6.044834491662391E-12 -1.226735508049314E-10 1.235928506975771E-10 8.504719926622717E-11

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 16.5   n/a MPO427886  
rotation period rot_per 9.60 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 [Result based on fragmentary lightcurve(s), may be completely wrong.]

379645 (2011 EY17)          Discovered 2007-Apr-11 by Siding Spring Survey at Siding Spring
Reference: Last Updated: 2013-11-20

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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